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White Collar Factory (95009), United Kingdom, London, London Software Engineering Manager About this role Capital One is looking for a Software Engineering Manager to join us in our London office. You will have previous experience of leading a Software Engineering team and be passionate about people and technical leadership. What you’ll do Be a differential people leader. Literally. We expect you to coach and nurture your engineers and make a material positive difference to their careers and impact on the business. Bring technical leadership to your team. We don’t require you to code, but we do expect you to stay close to your team’s work, set a high bar for engineering, understand technical risks and influence architectural thinking and decisions. Bring context and purpose to your team. You will ensure your team understands the why behind the work they do, and you will be intentional about how you own and shape culture. Own ways of working and deliveries, partnering with your Product Owner and Change Delivery Lead to shape roadmaps and lead frequent delivery of high quality software in a complex regulatory environment Own one or more business applications, keeping them well-managed and compliant with the high bar set by the business Be a manager for the business, elevating your thinking beyond your immediate team. You’ll represent the interests and context of the business to your engineers, and help make the environment beyond your immediate team a better place. What we’re looking for An approachable and inquisitive problem-solving leader, with a focus on the why, and a passion for growing people, nurturing culture and leading technical delivery to help us get things done and make things better in a complex, regulatory environment. We are looking for: Previous experience in leading teams, growing engineers and dealing with conflict, constructively and collaboratively Previous experience of having been an experienced software engineer, and somebody who remains comfortable with technology, architectural decisions and technical trade-offs Previous experience in our backend tech stack - Java, Spring, AWS and who is a strong advocate of tight feedback loops through mechanisms including, but not limited to automated tests, CI/CD pipelines and frequent releases A balance of self-reflection and bias for action Strong ownership and excellent communication A drive for positive, proactive impact We understand that great engineering managers may not have everything listed here, and that is OK. If you believe you can make a difference, lead a happy & high-performing engineering team and you have the drive to make a positive impact on the business, we’d love to hear from you. What’s in it for you: A people and technical leadership role in an engineering organisation that actively values excellence and doing the right thing, in a business that cares for its associates and has interesting problems to solve around growth, security, availability and performance in a highly regulated space. A learning environment with access to many excellent resources including online technical courses and in-person leadership training A competitive salary and immediate access to core benefits including salary sacrifice pension scheme with up to 10% company contribution, bonus, generous holiday entitlement, private medical insurance and flexible benefits including season ticket loans, cycle to work scheme and enhanced parental leave Open-plan workspace and facilities designed to inspire and support you. In our (quite beautiful) London office, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café What you’ll get to learn (any previous experience would be advantageous) Solve real world problems, navigate ambiguity and deliver on the public cloud (AWS) to drive growth and operational efficiencies in an ambitious and growing UK business Influence change in a complex regulated environment Where and how you'll work This is a permanent position based in our London office. We have a hybrid working model which gives you flexibility to work from our offices and from home. We’re big on collaboration and connection, so you’ll be based in our London office 3 days a week on Tuesdays, Wednesdays and Thursdays. What you should know about how we recruit We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: REACH – Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies OutFront – to provide LGBTQ+ support for all associates Mind Your Mind – signposting support and promoting positive mental wellbeing for all Women in Tech – promoting an inclusive environment in tech EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry Enabled - focused on supporting associates with disabilities and neurodiversity Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact _ All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to _ Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Software Engineering Manager - Services About this role Capital One is looking for a Software Engineering Manager to join us in our London office. You will have previous experience of leading a Software Engineering team and be passionate about people and technical leadership. What you’ll do • Be a differential people leader. Literally. We expect you to coach and nurture your engineers and make a material positive difference to their careers and impact on the business., • Bring technical leadership to your team. We don’t require you to code, but we do expect you to stay close to your team’s work, set a high bar for engineering, understand technical risks and influence architectural thinking and decisions., • Bring context and purpose to your team. You will ensure your team understands the why behind the work they do, and you will be intentional about how you own and shape culture., • Own ways of working and deliveries, partnering with your Product Owner and Change Delivery Lead to shape roadmaps and lead frequent delivery of high quality software in a complex regulatory environment, • Own one or more business applications, keeping them well-managed and compliant with the high bar set by the business, • Be a manager for the business, elevating your thinking beyond your immediate team. You’ll represent the interests and context of the business to your engineers, and help make the environment beyond your immediate team a better place. What we’re looking for An approachable and inquisitive problem-solving leader, with a focus on the why, and a passion for growing people, nurturing culture and leading technical delivery to help us get things done and make things better in a complex, regulatory environment. We are looking for: • Previous experience in leading teams, growing engineers and dealing with conflict, constructively and collaboratively, • Previous experience of having been an experienced software engineer, and somebody who remains comfortable with technology, architectural decisions and technical trade-offs, • Previous experience in our backend tech stack - Java, Spring, AWS and who is a strong advocate of tight feedback loops through mechanisms including, but not limited to automated tests, CI/CD pipelines and frequent releases, • A balance of self-reflection and bias for action, • Strong ownership and excellent communication, • A drive for positive, proactive impact We understand that great engineering managers may not have everything listed here, and that is OK. If you believe you can make a difference, lead a happy & high-performing engineering team and you have the drive to make a positive impact on the business, we’d love to hear from you. What’s in it for you: • A people and technical leadership role in an engineering organisation that actively values excellence and doing the right thing, in a business that cares for its associates and has interesting problems to solve around growth, security, availability and performance in a highly regulated space., • A learning environment with access to many excellent resources including online technical courses and in-person leadership training, • A competitive salary and immediate access to core benefits including salary sacrifice pension scheme with up to 10% company contribution, bonus, generous holiday entitlement, private medical insurance and flexible benefits including season ticket loans, cycle to work scheme and enhanced parental leave, • Open-plan workspace and facilities designed to inspire and support you. In our (quite beautiful) London office, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café What you’ll get to learn (any previous experience would be advantageous) • Solve real world problems, navigate ambiguity and deliver on the public cloud (AWS) to drive growth and operational efficiencies in an ambitious and growing UK business, • Influence change in a complex regulated environment Where and how you'll work This is a permanent position based in our London office. We have a hybrid working model which gives you flexibility to work from our offices and from home. We’re big on collaboration and connection, so you’ll be based in our London office 3 days a week on Tuesdays, Wednesdays and Thursdays. What you should know about how we recruit We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: • REACH – Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies, • OutFront – to provide LGBTQ+ support for all associates, • Mind Your Mind – signposting support and promoting positive mental wellbeing for all, • Women in Tech – promoting an inclusive environment in tech, • EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry, • Enabled - focused on supporting associates with disabilities and neurodiversity Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact _ All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to _ Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Engineering Manager – Software & ML We are looking for a Software Engineering Manager who brings a solid foundation in modern development and some experience with Machine Learning environments. You’ll lead and grow a team that builds the core software powering our data-driven financial products, ensuring our models are integrated into seamless, consumer-facing experiences. Lead & Scale: Support a cross-functional group of engineers to design, develop, and integrate software features that are vital to the lives of credit card consumers. Nurture Talent: Coach and nurture your engineers, including those working on ML integration to achieve their technical, business, and personal goals. Bridge the Gap: Collaborate with Product Managers and Data Scientists to ensure ML models are effectively integrated into our production software. Build Robust Systems: Oversee the development of platforms that are performant, secure, and capable of handling the unique deployment needs of AI-powered features. Optimize Delivery: Enhance engineering and agile processes, ensuring that model updates and software releases move in sync. Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily a researcher, but you have expectations of how AI fits into the stack. You understand the basics of model inference, data requirements, and how to manage the non-deterministic nature of AI. Strategic Thinking: Comfortable making technical trade-offs between the need for rapid experimentation and long-term architectural stability. Collaborative Mindset: Ability to communicate effectively across engineering teams to maximize inner-sourcing and reduce technical debt. ML Integration at Scale: How to take machine learning models out of the lab and into a high-concurrency production environment. Regulated AI: Navigating the complexities of fairness and transparency in a regulated financial landscape. Cloud Evolution: Deepening your expertise in AWS/Cloud native tools that support modern intelligent applications. This is a permanent position based in either our London or Nottingham offices. We have a hybrid working model. You'll be based in the office 3 days a week (Tuesdays, Wednesdays, and Thursdays) to foster team connection and collaboration. Innovation Time: We give you 10% of your time to work on cutting-edge projects—whether that’s exploring new AI frameworks or building internal tools. Growth: Access to Capital One University and external training to help you grow as both a leader and a technical strategist. Total Reward: Competitive salary, performance bonus, and immediate access to core benefits (pension, private medical, and generous holiday). World-Class Facilities: From our Nottingham gym and music rooms to our London rooftop running track and premium coffee bars. We pride ourselves on hiring the best people, not the same people. We partner with organisations like Women in Tech and Stonewall to ensure we build teams that reflect the customers we serve. We offer a host of internal networks including REACH (Race Equality and Culture Heritage), OutFront (LGBTQ+ support), and Mind Your Mind. Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact _ All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to _ Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Lead Software Development Engineer - Services About this role Capital One’s mission is to change banking for good by bringing humanity, ingenuity and simplicity to banking. Sitting at the core of such values is our Software Engineering department whose primary role is to be an enabler of our ambitions. Capital One is looking for a Senior Software Development Engineer to join a backend team, based in our London office on a hybrid basis. Our Engineers are people who lead by example, build strong and valuable relationships and have the confidence to influence at all levels. We are proud of who we are and what we do and want you to join us at this particularly exciting time at Capital One. What you’ll do You will lead a team or cross-functional squad in the delivery of complex and ambiguous projects that support a broader business outcome You will take end-to-end responsibility for technical design, implementation, and operational considerations Collaborate with engineers, architects, product owners, and stakeholders to ensure successful project outcomes You will play a crucial role in supporting the elevation of engineering enablement, excellence, and experience across the broader engineering community You will collaborate and contribute to the development and dissemination of standardised and sustainable best practices, tools, patterns, and frameworks that enhance the productivity and quality of engineering efforts business-wide Your focus is on a major portion of existing or new team software (e.g., significant component, set of features, mid-size application or service) You’ll work to achieve the goals and vision shared by Product Management and your Tribe Leadership Innovate within your team, initiative area and contribute within your technical domain What we’re looking for Proven experience in technical leadership, including leading a team or cross-functional squad Proven experience working in both backend services and mobile technologies Exceptional programming skills and knowledge of building APIs using modern OO languages preferably Java, SOLID principles, SOA, HTTP and REST Experience with AWS and strong understanding of cloud-based development Extensive, demonstrable knowledge of designing architectures that are secure and perform at scale You’re able to effectively communicate and work collaboratively across engineering to maximise inner-sourcing opportunities and reduce waste Proven experience ability to deliver high quality applications at scale An advocate for quality and the ability to support the team, leveraging approaches such as Pair Programming, TDD and BDD Where and how you'll work This is a permanent position and will be based in our London office. We have a hybrid working model which gives you flexibility to work from our offices and from home. We're big on collaboration and connection, so you'll be based in our London office 3 days a week on Tuesdays, Wednesdays and Thursdays. What’s in it for you Bring us all this - and you’ll be handsomely rewarded with a role contributing to the product roadmap for an organisation committed to transformation We’re continuing our journey into the public cloud and have problems of scale, security, availability and performance for you to help solve We love continuous learning and that’s why we give you 10% of your time to work on cutting edge innovative projects that shape the way we will work in the future We offer high performers strong and diverse career progression, investing heavily in developing great people through our Capital One University training programmes (and appropriate external providers) Immediate access to our core benefits including pension scheme, bonus, generous holiday entitlement and private medical insurance – with flexible benefits available including season-ticket loans, cycle to work scheme and enhanced parental leave Open-plan workspaces and facilities designed to inspire and support you. Our Nottingham head-office has a fully-serviced gym, subsidised restaurant, mindfulness and music rooms. In London, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café What you should know about how we recruit We are committed to creating a level playing field and seek to create teams that are representative of our customers and the communities we serve. We’d love to hear from you if you identify with a typically under-represented group in our industry and are particularly keen to hear from women and ethnic minority candidates. We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: REACH – Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies OutFront – to provide LGBTQ+ support for all associates Mind Your Mind – signposting support and promoting positive mental wellbeing for all Women in Tech – promoting an inclusive environment in tech EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact _ All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to _ Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Staff Software Engineer - Back End About this role Do you love shaping the technical landscape and driving innovation across the organisation? Are you passionate about solving complex business problems and supporting multiple teams toward a shared technical vision? At Capital One, you'll be part of a community of technical leaders who drive engineering excellence, foster innovation, and deliver impactful solutions that meet real customer needs. What You'll Do • Own and drive the technical strategy for a significant business outcome or technology domain, spanning multiple teams and influencing the overall technical direction, • Lead and coordinate the efforts of multiple teams, ensuring their collective work aligns with broader business objectives and technology strategy, • Proactively identify emerging patterns, define and evangelise best practices, and establish reusable frameworks that enhance engineering productivity, • Build and maintain strong relationships with key stakeholders, including senior leadership, product owners, and architects, • Represent Capital One in external technical forums, contributing to vendor/industry discussions, • Drive service quality standards and practices for your domain, guiding complex incident resolution, • Develop and advocate for strategies to proactively manage technical debt across multiple teams, • Actively mentor and develop engineers, fostering a culture of continuous learning What we’re looking for • Deep expertise in Java, • Deep expertise in system design and distributed architectures, • Track record of leading technical initiatives across multiple teams, • Strong experience with cloud platforms (AWS, Azure, GCP), • Proven experience setting a multi-team technical vision and strategy, • Strong track record of technical leadership and influence without authority, • Experience driving engineering standards and best practices across organisations, • Experience of steering Communities of Practice or technical forums, • Strong business acumen and ability to translate technical concepts for various audiences Where and how you'll work This is a permanent position based in our London office. We have a hybrid working model which gives you flexibility to work from our office and from home. We’re big on collaboration and connection, so you’ll be based in our London office 3 days a week on Tuesdays, Wednesdays and Thursdays. What’s in it for you • Bring us all this - and you’ll be well rewarded with a role contributing to the roadmap of an organisation committed to transformation, • We offer high performers strong and diverse career progression, investing heavily in developing great people through our Capital One University training programmes (and appropriate external providers), • Immediate access to our core benefits including pension scheme, bonus, generous holiday entitlement and private medical insurance – with flexible benefits available including season-ticket loans, cycle to work scheme and enhanced parental leave, • Open-plan workspaces and accessible facilities designed to inspire and support you. Our Nottingham head-office has a fully-serviced gym, subsidised restaurant, mindfulness and music rooms. In London, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café What you should know about how we recruit We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: • REACH – Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies, • OutFront – to provide LGBTQ+ support for all associates, • Mind Your Mind – signposting support and promoting positive mental wellbeing for all, • Women in Tech – promoting an inclusive environment in tech, • EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry, • Enabled - focused on supporting associates with disabilities and neurodiversity Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact _ All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to _ Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Engineering Manager – Software & ML About this role We are looking for a Software Engineering Manager who brings a solid foundation in modern development and some experience with Machine Learning environments. You’ll lead and grow a team that builds the core software powering our data-driven financial products, ensuring our models are integrated into seamless, consumer-facing experiences. What you’ll do Lead & Scale: Support a cross-functional group of engineers to design, develop, and integrate software features that are vital to the lives of credit card consumers. Nurture Talent: Coach and nurture your engineers, including those working on ML integration to achieve their technical, business, and personal goals. Bridge the Gap: Collaborate with Product Managers and Data Scientists to ensure ML models are effectively integrated into our production software. Build Robust Systems: Oversee the development of platforms that are performant, secure, and capable of handling the unique deployment needs of AI-powered features. Optimize Delivery: Enhance engineering and agile processes, ensuring that model updates and software releases move in sync. What we’re looking for Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily a researcher, but you have expectations of how AI fits into the stack. You understand the basics of model inference, data requirements, and how to manage the non-deterministic nature of AI. Strategic Thinking: Comfortable making technical trade-offs between the need for rapid experimentation and long-term architectural stability. Collaborative Mindset: Ability to communicate effectively across engineering teams to maximize inner-sourcing and reduce technical debt. What you’ll get to learn ML Integration at Scale: How to take machine learning models out of the lab and into a high-concurrency production environment. Regulated AI: Navigating the complexities of fairness and transparency in a regulated financial landscape. Cloud Evolution: Deepening your expertise in AWS/Cloud native tools that support modern intelligent applications. Where and how you'll work This is a permanent position based in either our London or Nottingham offices. We have a hybrid working model. You'll be based in the office 3 days a week (Tuesdays, Wednesdays, and Thursdays) to foster team connection and collaboration. What’s in it for you Innovation Time: We give you 10% of your time to work on cutting-edge projects—whether that’s exploring new AI frameworks or building internal tools. Growth: Access to Capital One University and external training to help you grow as both a leader and a technical strategist. Total Reward: Competitive salary, performance bonus, and immediate access to core benefits (pension, private medical, and generous holiday). World-Class Facilities: From our Nottingham gym and music rooms to our London rooftop running track and premium coffee bars. Our Commitment to Diversity We pride ourselves on hiring the best people, not the same people. We partner with organisations like Women in Tech and Stonewall to ensure we build teams that reflect the customers we serve. We offer a host of internal networks including REACH (Race Equality and Culture Heritage), OutFront (LGBTQ+ support), and Mind Your Mind. Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact ukrecruitment@capitalone.com All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to Careers@capitalone.com Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

We are working with a global financial institution building a new engineering team focused on developing a large-scale internal platform within a critical business area. This is a greenfield initiative focused on modernising and scaling internal technology capabilities through high-quality engineering and platform design. The environment is highly technical, hands-on, and focused on building reliable distributed systems within a regulated environment. Key Responsibilities • Design and build scalable, distributed systems handling high volumes of financial and transactional data, • Contribute directly to architecture, system design, and hands-on software development, • Drive engineering best practices across automation, testing, observability, and performance, • Build resilient, production-grade systems with a strong focus on reliability and scalability, • Work across the full software development lifecycle from design through to production support, • Partner closely with engineering and product leadership to shape technical direction, • Mentor and support engineers within a small, high-performing teamKey Requirements, • Strong experience building large-scale distributed systems within financial services or other regulated environments, • Expert-level Java engineering experience, ideally within microservices and event-driven architectures, • Experience with Spring Boot and modern backend engineering practices, • Exposure to Angular or TypeScript within full-stack environments, • Strong understanding of system design, scalability, and high-availability systems, • Experience building automated, production-grade platforms with minimal manual intervention, • Familiarity with cloud-native technologies, CI/CD, and observability tooling, • Strong engineering mindset with a hands-on approach to development, • Interest in modern engineering tooling, including AI-assisted development workflows Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Excellent opportunity for a Quantitative Analyst who is passionate about sports to join an excellent client's team based in central London. The successful Quantitative Analyst will join a very talented team and will be expected to interpret, filter, and analyse very large data sets whilst working closely with other analysts and developers. The successful Quantitative Analyst will be a forward-thinking individual who is more than comfortable working to both their own initiative and as a team. You will ideally be educated to at least MSc in a quantitative subject such as Mathematics, Statistics, Computer Science or Physics and any knowledge with sports betting/trading would be beneficial.This is an office-based role and as well as very competitive salaries, our client offers an excellent working environment. Skills required: • Proficient in several of the following: Python, C#, C++, Java, • Mathematical Modelling, • Mathematical skills, particularly a keen understanding of probabilities and statistics, • Analytic mindset, • Strong communication skills, • Accuracy and attention to detail, • Experience in data science, • An interest in sports data/trading If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson at Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Data Architect 6-Month contract - Inside IR35 - up to £700 per day London based - hybrid working - 2/3 days onsite Candidates must hold current and active SC Clearance We are seeking a Data Architect to lead the design and delivery of secure, cloud-based data platforms for the client. The role combines architectural strategy with delivery oversight - shaping target-state architectures while ensuring they are implemented pragmatically within regulated, security-conscious environments. This position will suit an architect who can move comfortably between traditional enterprise data approaches and modern patterns such as lakehouse, streaming, data mesh and ML-enabled platforms - and who values clarity, governance and technical rigour. Candidates must hold activeSC clearance. What experience you'll bring: Leadership: • Recent experience as a Lead Data Architect / Data Solutions Architect or equivalent senior role., • Ability to build relationships and operate at a senior stakeholder level with clients., • Demonstrated ownership of end-to-end data platform design and delivery., • Experience operating in consulting, systems integration, or delivery partner roles., • Experience working within the Government sector strongly preferred. Modern and Enterprise Data Architecture: You should have practical architecture experience across both established enterprise approaches and modern data patterns, including: • Azure data systems (must have)., • Oracle / AWS experience is ideal., • Knowledge of Databricks and Snowflake is ideal., • Experience of large-scale data migration programmes., • Data lake and lakehouse architectures., • Event-driven and streaming architectures., • Data Mesh and/or Data Fabric principles (applied pragmatically, not theoretically)., • Data product-oriented design approaches. You understand where traditional patterns remain appropriate - and where modern approaches add measurable value. Data Engineering & Platform Understanding: • Strong knowledge of distributed processing (e.g. Apache Spark)., • Familiarity with Hadoop ecosystem components., • Working knowledge of SQL and NoSQL technologies., • Understanding of ETL/ELT design trade-offs., • Awareness of DevOps practices and CI/CD for data platforms., • Understanding of how ML/AI workloads integrate into data architectures. Hands-on coding ability (e.g. Python, Java, R) is beneficial but not required. Governance, Security and Data Management • Experience leading a discovery phase for a data transformation programme., • Experience designing within structured architectural governance frameworks., • Familiarity with government assurance processes and design authorities., • Strong understanding of data governance frameworks and metadata management., • Experience designing for GDPR and UK public sector data protection requirements., • Appreciation of infrastructure considerations and security boundaries in regulated cloud environments. Stakeholder Engagement • Ability to influence architectural direction at senior stakeholder level., • Clear and structured communicator - able to explain trade-offs and risks., • Experience leading and mentoring architects and engineers., • Comfortable operating within programme governance structures., • Familiarity with Agile delivery models (SAFe, Scrum, Kanban). Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Lead Full Stack Engineer - Active SC, AWS £Market Rate - Inside IR35 Remote 6 months My client is an instantly recognisable consultancy who require Lead Full Stack Engineers to join a business-critical programme for an end client within the public sector. Key Requirements: • Proven commercial experience working as a Lead Full Stack Engineer within the Public Sector., • Active SC Clearance., • Previous experience leading and coaching engineering teams, promoting good engineering practices, guiding technical decision-making, and contributing to the developer community., • Expertise in designing, building, and maintaining full-stack solutions for public-sector digital services, owning features from development through release., • The ability to select appropriate technologies and patterns, decide when and how software should be built, and ensure scalable, secure designs., • Excellent communication skills with the ability to work closely with clients and delivery teams in a fast-paced, contract-driven environment with high interaction and accountability., • Hands-on development using modern front-end and back-end technologies (e.g. TypeScript, React, Node/Java, APIs, databases)., • Strong experience building and operating solutions in cloud environments (primarily AWS), using infrastructure as code, CI/CD pipelines, and modern DevOps practices. Nice to have: • An openness to Temp to Perm., • Immediate availability. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Senior Java Developer • Annual Salary: Competitive with performance-related bonus, • Location: City of London (Hybrid - 3 days a week onsite), • Job Type: Full-Time, Permanent A new exciting opportunity has become available for an experienced Senior Java Developer to join a growing Technology department working specifically within Capital Markets for an SME, post-trade solutions organisation. This role offers an exciting opportunity to play a central role in building and evolving their post-trade technology platform. You will be instrumental in developing in-house systems, APIs, client reporting, and web portals, as well as customising third-party trading systems. This position is a key step towards a Head of Engineering role, anticipated within 24 months based on performance and organisational growth. Day-to-day of the role: • Design, develop, and maintain in-house systems, APIs, reporting tools, and the client web portal., • Implement AI in the Software Development Life Cycle (SDLC) process., • Customise and extend third-party trading systems to meet business requirements., • Write clean, well-tested code following SOLID principles, Design Patterns, and Clean Code practices., • Apply Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) methodologies; maintain test coverage using JUnit, Spock, and Mockito., • Participate in code reviews and contribute to the continual improvement of engineering standards., • Collaborate with Client Services and Product Management to understand requirements and propose solutions., • Manage and mentor a small team of Java developers, promoting a culture of quality, ownership, and continuous improvement. Required Skills & Qualifications: • 7+ years' Java development experience in Financial Services., • Strong understanding of capital markets, particularly Clearing or Prime Brokerage services., • Proficiency in Java 11+, Spring/Spring Boot, multi-threading, profiling, performance tuning, and Remote Method Invocation (RMI)., • Experience with CI build and deployment management tools, microservices, and modern software practices like Agile and automated builds/deployments., • Proficiency with Git, Maven, and test frameworks like JUnit/Spock., • Experience in cloud platforms (AWS, Azure, or GCP), microservices, and event-driven architectures., • Desirable: Experience leading a development team and working with offshore teams. Benefits: • Clear growth pathway toward Head of Engineering role., • Flexible and hybrid working arrangements., • Private healthcare, pension, life assurance, and critical illness insurance., • A leadership team that values engineering as a core business differentiator. To apply for this Senior Java Developer position, please submit your CV to be immediately considered.

Java Developer - Active SC, Java, Oracle WebLogic Up to £425 per day (Inside IR35) Remote 12 months My client is an instantly recognisable Consultancy who are hiring a Java Developer with Active SC Clearance (Security Cleared), Java, Oracle WebLogic and ElasticSearch skills to work with a high profile end client. Key Requirements: • Demonstrable experience as a Java Developer, • Active SC Clearance is essential; NPPV3 would be advantageous, • Strong expertise in Java 11+ with experience supporting legacy systems, • Proven experience with Oracle WebLogic 11gR1 or similar, • Experience developing and supporting PL/SQL, • Hands-on experience with ElasticSearch development and support Nice to have: • Experience with Spring/Spring Boot, Docker, Git, Cloud platforms, Jenkins, • Familiarity with IBM Initiate (Master Data Management), • Knowledge of Nginx, Apache Tomcat/HTTP, and ETL processes If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Telemetry and Observability Engineer (Inside IR-35) London / Hybrid (3 days on-site) I'm working with a global organisation building next-generation cloud-native and observability platforms at enterprise scale, and they're looking for a strong Senior Observability Engineer to join the team. This is a high-impact role focused on scalable telemetry pipelines, monitoring, alerting, reliability engineering, and embedding observability across complex distributed systems and Kubernetes environments. Key experience needed: • Observability / SRE / Platform Engineering background OpenTelemetry, Prometheus, Grafana, Splunk, Elastic, Loki, or Jaeger Kubernetes, microservices, and cloud-native platforms Python, Go, or Java Terraform, Helm, and IaC* SLIs, SLOs, alerting, and reliability engineering Financial services or regulated environment experience is a bonus. Great opportunity to work with cutting-edge technology, influence engineering standards, and help shape observability at enterprise scale. Interested? Drop me a message or send over your CV. Oscar Associates (UK) Limited is acting as an Employment Business in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

Your new companyWe're partnering with a growing, technology-driven organisation that develops software used by businesses to enhance their digital capabilities. Operating globally, the company provides a flexible platform that supports a wide range of use cases across modern digital environments. With a strong focus on continuous improvement and innovation, the organisation is investing in its engineering and data functions as it scales, offering opportunities to work on complex systems in a collaborative, forward-thinking setting.Your new roleAs a Staff Engineer, you will act as a technical leader within a high-performing engineering team, driving architectural decisions and ensuring the scalability, reliability, and performance of a modern, distributed platform.Key responsibilities include: • Designing and evolving highly scalable, distributed backend systems, • Setting standards for engineering excellence, observability, and operational best practices, • Collaborating closely with Product, UX, and Engineering teams to deliver impactful features, • Leading on system architecture and long-term technical strategy, • Tackling complex challenges around performance, scalability, and data-intensive workloads, • Mentoring and developing engineers across the organisation What you'll need to succeed • 8+ years' experience in software engineering, with strong fundamentals in distributed systems and system design, • Proven background building and operating large-scale backend platforms in production, • Experience working within a product-led environment, • Hands-on experience with cloud-native technologies, containers, and CI/CD pipelines, • Experience influencing technical direction across teams or domains Strong expertise in: • Java, • Distributed systems architecture, • API design, • Performance optimisation and scalability Nice to have: • Previous experience at Staff / Principal / Tech Lead level, • Exposure to high-volume, low-latency data platforms or analytics systems, • Track record of delivering cross-functional initiatives at scale What you'll get in return • Work on cutting-edge analytics and data infrastructure, • Join a high-growth, product-driven SaaS organisation, • Significant ownership and ability to shape technical direction, • Collaborative, modern engineering culture with a focus on innovation, • Clear path for continued technical leadership growth What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Solutions Architect - London Job Title: Solutions ArchitectSalary: Paying up to £85,000 per annum Location: Wembley London - 5 days on-site Are you a hands-on technical leader with a passion for creating innovative technology solutions? Our client, a well-established and diversified multinational organisation, is seeking a Solutions Architect to join their team. Skills • Experience: Solution Architecture with a clear focus on E-commerce platforms or API/Middleware ecosystems., • Technical Stack: Expert-level knowledge of Node.js, Java (Spring Boot), and PostgreSQL - able to read and critique vendor code, not just high-level diagrams., • Integration Expert: Deep proficiency in API management patterns, Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs., • Legacy-to-Cloud: Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures., • Tooling: Proficient in Visio or LucidChart for architectural modelling; disciplined in Confluence for documentation practices. Duties • Blueprint Delivery: Develop high-quality High-Level Designs (HLDs) and Low-Level Designs (LLDs) for DTS, EPOS, and other strategic workstreams - to a standard that external vendors are contractually required to match., • Vendor Governance: Conduct structured audits of vendor-submitted code and architecture. Enforce 'Stable-by-Design' framework, ensuring external deliverables meet internal quality, security, and scalability thresholds., • Data Integration Leadership: Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware - a technically demanding challenge requiring deep integration expertise., • Systemic Remediation: Lead deep-dive investigations into recurring platform failures error surges, latency anomalies, and data inconsistencies - and deliver long-term structural remediation, not tactical patches., • Technical Documentation: Maintain high-quality architecture documentation in Confluence, ensuring designs are versioned, accessible, and transferable to operational teams.

Software Engineer – Middle/Back Office – Asset Manager (Contract) An asset manager is improving their risk, P&L, and reporting systems and are looking for an experienced software engineer to work across several projects aimed to enhance and extended middle and back-office systems. You will have a background in financial markets, ideally on the buy-side, with significant commercial experience developing enterprise production-grade systems in Python and/or Java, a solid understanding of financial products and their representation, as well as an appreciation of middle and back-office processes covering operations, risk, compliance, and reporting. You will have significant familiarity or proven experience using AI coding assistants to enable faster delivery in compressed timelines, coming either commercially or from personal projects. You should apply for this role if you are/have: • 8+ years commercial experience developing production-grade enterprise systems in Python and/or Java, • Asset/investment management experience in the front or middle office systems space, • Financial product understanding, ideally FIC, with operations, risk and compliance systems experience, • Experience using AI coding assistants (Claude, Cursor, GitHub Copilot) with significant examples of delivery improvement, • AWS (S3, Lambda, EC2, Glue), Snowflake, Git, CI/CD, Datadog, MS SQL Server, REST, GraphQL, Airflow (as many as possible), • Degree educated or higher in a relevant technical discipline from a leading university This is a £650-700/day PAYE role (cf. £770 – 830 Umbrella as employers NI paid in addition) depending on the relevant experience of the candidate. On site 4/5 days a week, based London.

Lead Rust Engineer Up to 120,000/130,000 London Low Latency | Async Rust | Tokio Drones We have a new and exclusive partnership with one of the most exciting scale-ups in Europe, who are looking to double in size their engineering team. They have a valuation exceeding 2 billion Euros. The company builds aerial intelligence hardware and software. They're main focus is the manufacturing of UAV's. Alongside this, they are also developing bleeding edge software that provides actionable insights in defense, security and professional services. The Rust Team: The company are building a new Rust Engineering pod in the UK, and are hiring several Rust Engineers and a Team Lead. This engineering team are focusing on building a greenfield command and control center, designed specifically for unmanned systems. What you'll be doing: • Architect, build, and support reliable, high-performance systems for coordinating swarms and handling sensor data., • Develop streamlined communication methods and real-time data processing tools tailored for robotic platforms., • Work hand-in-hand with multidisciplinary teams to connect backend infrastructure with robotic applications and sensor arrays., • Enhance overall system efficiency, expandability, and dependability within distributed robotic setups. Experience you'll need: • Production experience with Rust, or contributions to production grade open source repos. 2+ Years., • Experience working with Tokio, or other asynchronous frameworks such as async.std or Smol., • Ideally a background in a core programming language such as C, C++, or Core Java. Candidates from functional backgrounds such as Scala, Erlang or Clojure are also encouraged to apply., • Experience developing low-latency, high throughput systems. Nice to have: • Experience working with drones or robotics, • experience working with microcontrollers

We are working with a global financial institution building a new engineering team focused on developing a large-scale internal platform within a critical business area. This is a greenfield initiative focused on modernising and scaling internal technology capabilities through high-quality engineering and platform design. The environment is highly technical and hands-on, with a strong focus on building reliable, scalable systems within a regulated environment. Key Responsibilities • Design, build, and enhance scalable distributed systems handling high volumes of data and transactions, • Develop and maintain backend services and APIs using modern engineering practices, • Contribute to system design, architecture discussions, and technical decision-making, • Build resilient, automated systems with strong focus on reliability, observability, and performance, • Work closely with engineering and product teams to deliver production-grade solutions, • Contribute to CI/CD, testing, monitoring, and operational improvements across platforms, • Support and mentor junior engineers within the teamKey Requirements, • Strong Java engineering experience within distributed or microservices-based environments, • Experience building production systems within financial services or similarly regulated industries, • Strong knowledge of Spring Boot and backend engineering best practices, • Exposure to Angular or TypeScript beneficial, • Experience working with high-volume, scalable systems, • Familiarity with event-driven architecture and messaging systems, • Experience with cloud-native technologies, CI/CD pipelines, and observability tooling, • Strong hands-on engineering mindset and interest in modern development tooling, including AI-assisted workflows Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Head of Engineering - Java, Javascript, Cloud, Healthcare Up to £850 per day (Inside IR35) London / Hybrid (3 days onsite) 6 months My client is a high-profile organisation seeking a Head of Engineering to lead a team of Software Engineering Managers, driving the development and transformation of technology products. This role requires deep technical expertise (Java, Javascript, Azure / GCP) and a proven ability to build high-performing engineering functions in fast-paced, complex environments. You will play a key role in a wider transformation programme, introducing modern engineering practices, improving architecture, and delivering scalable, consumer-facing digital products. Key Requirements: • Proven experience as a Head of Engineering or senior engineering leader in large, complex environments, • Strong track record of leading Engineering Managers and building high-performing teams, • Hands-on technical background across Java, Javascript and cloud (Azure / GCP), including distributed systems, • Experience in fast-paced, modern engineering environments, • Expertise in scalable architecture, reliability and performance, • Ability to navigate and simplify complex technical challenges, • Experience delivering consumer-facing products (frontend + backend awareness), • Proven track record in driving engineering transformation, • Strong stakeholder management and communication skills, • Flexible approach to hybrid working and occasional travel Nice to have: • Degree in Computer Science or related field, • Strong CS fundamentals (data structures, algorithms, problem solving), • Healthcare / HealthTech experience, • Immediate availability If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Job Title: Lead Modernization Engineer Java / Node.js Salary: Paying up to £80,000 per annum Location: Wembley London - 5 days on-site Our client, a well-established and diversified multinational organisation, is seeking a Lead Modernization Engineer Java / Node.js to join their team. Skills • Solid Experience in Java development with significant, demonstrable experience in Spring Boot and Microservices architecture - not just familiarity, but production ownership., • Azure Integration: Proven experience building applications that consume Azure-native services, including Azure Key Vault for secrets, Azure Storage API, and Azure Service Bus for event-driven messaging., • DevOps Mindset: Solid understanding of the full CI/CD lifecycle; comfortable reading and contributing to Dockerfiles and GitHub Actions YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through., • API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties • Engineering Standards: Define and enforce the clients Java and Node.js coding standards across the team - with a specific focus on robust exception handling, ninary stream handling, structured logging via Application Insights, and adherence to security-first development practices., • Cloud-Native Readiness: Ensure all application logic is optimised for containerisation from the ground up. This includes implementing proper Health Check endpoints, secure Secret Management via Azure Key Vault, correct port mapping for Container Apps, and stateless design principles compatible with Azure Container Apps (ACA)., • Technical Mentorship: Provide direct, hands-on mentorship to junior and mid-level developers - identifying technical debt at the codebase level, running structured code reviews, and building a culture of engineering excellence that prevents recurring quality issues such as corrupted or misconfigured deployments., • Architectural Liaison: Work closely with the Principal Architect to translate High-Level Designs (HLDs) into production-ready implementation plans - ensuring the development team understands not just what to build, but why the architectural decisions were made, and what constraints must be respected., • Quality Assurance: Champion a strong automated testing culture - unit tests, integration tests, and contract tests - to prevent regression and ensure deployments are verifiably stable before reaching production.

I am currently working with a London-based Financial Services client who are actively seeking a Principal Java Developer with extensive experience in the Risk and Market Data space.What you'll need to succeed: • Strong server-side Java Development experience in a lead role working on Risk and Market Data platforms, • Strong investment banking experience, • Strong experience working with Quants, • Good understanding of data engineering principals, • Strong cloud experience, ideally with AWS What you'll get in return: • Initial 6-month contract with extensions, • Up to £950pd Umbrella, • London-based hybrid working What you need to do now:If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Fastest Growing Start-up in the UK | Defence We are partnered with one of the UK's fastest-growing start-ups. They are a very technically focused group building cutting-edge decision-making technology. The company's founding team has a real pedigree, with backgrounds from the UK Special Forces, Palantir and Helsing. They've been building for just over two years, and already have a lot of customers in the UK. On-site | London Up to 150,000 + Equity Senior/Principal Software Engineers: They're looking to add Senior/Principal Engineers to their team. The team are open to hiring pure backend engineers or full-stack engineers. Their technical stack is Rust, Typescript and React on the frontend. They do not require any experience in any of these technologies; the team hire on pure technical acumen rather than years of experience with one language. Bonus point if you have built: • High-throughput systems, • Event-sourced architectures, • Unified event models No sponsorship is available at this time.

Java Developer - Active SC, NPPV3, Java Up to £425 per day - Inside IR35 Primarily Remote 12 months My client is an instantly recognisable consultancy who require a Java Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: • Proven commercial experience working as a Java Developer within the Public Sector., • Active SC and NPPV3 Clearance., • Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other, • Proven experience delivering high-quality, cross-functional solutions using microservices and micro-frontend architectures, • Strong knowledge of Oracle PL/SQL and Web Applications., • Hands-on experience with Java & Spring best practices, Docker, Git, Cloud Platforms, Jenkins, Nginx etc., • Excellent communication skills., • Flexibility to go to various sites for training / knowledge transfer. Nice to have: • Technical leadership with the ability to identify delivery inefficiencies, escalate issues, and drive value. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Full Stack Developer - Active SC, NPPV3, Java Up to £425 per day - Inside IR35 Remote 12 months My client is an instantly recognisable consultancy who require a Full Stack Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: • Proven commercial experience working as a Full Stack Developer within the Public Sector., • Active SC and NPPV3 Clearance., • Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other, • Proven experience delivering high-quality, cross-functional solutions using microservices and micro-frontend architectures, • Strong knowledge of Oracle PL/SQL and Web Applications., • Hands-on experience with Java & Spring best practices, Docker, Git, Cloud Platforms, Jenkins, Nginx etc., • Excellent communication skills. Nice to have: • Technical leadership with the ability to identify delivery inefficiencies, escalate issues, and drive value. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Job Title:Java Technical Lead Salary: Paying up to £80,000 per annum Location: Wembley London - 5 days on-site Our client, a well-established and diversified multinational organisation, is seeking a Java / DevOps Technical Lead to join their team. Skills • Solid Experience in Java development with significant, demonstrable experience in Spring Boot and Microservices architecture - not just familiarity, but production ownership., • Azure Integration: Proven experience building applications that consume Azure-native services, including Azure Key Vault for secrets, Azure Storage API, and Azure Service Bus for event-driven messaging., • DevOps Mindset: Solid understanding of the full CI/CD lifecycle; comfortable reading and contributing to Dockerfiles and GitHub Actions YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through., • API Mastery: Deep expertise in RESTful API design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties • Engineering Standards: Define and enforce the clients Java and Node.js coding standards across the team - with a specific focus on robust exception handling, ninary stream handling, structured logging via Application Insights, and adherence to security-first development practices., • Cloud-Native Readiness: Ensure all application logic is optimised for containerisation from the ground up. This includes implementing proper Health Check endpoints, secure Secret Management via Azure Key Vault, correct port mapping for Container Apps, and stateless design principles compatible with Azure Container Apps (ACA)., • Technical Mentorship: Provide direct, hands-on mentorship to junior and mid-level developers - identifying technical debt at the codebase level, running structured code reviews, and building a culture of engineering excellence that prevents recurring quality issues such as corrupted or misconfigured deployments., • Architectural Liaison: Work closely with the Principal Architect to translate High-Level Designs (HLDs) into production-ready implementation plans - ensuring the development team understands not just what to build, but why the architectural decisions were made, and what constraints must be respected., • Quality Assurance: Champion a strong automated testing culture - unit tests, integration tests, and contract tests - to prevent regression and ensure deployments are verifiably stable before reaching production.

Senior Software Engineer - (Java, Pricing API,) - 5 days - Retail - London Day rate: £400 - £500 (inside IR35) Duration: 6 months On site: 5 days per week Start: Now My client is looking for a Senior Java Developer with 8 - 15 years experience to join the team 5 days a week in their London office. This is an opportunity to work on a mission critical pricing and promotions API that supports over 28 million UK customers weekly, across all platforms with global expansion ahead. This role involves designing and scaling a high-performance, internet-facing API operating across distributed environments. If you enjoy solving complex engineering challenges and building resilient systems at scale, this could be a great fit. What You'll Be Doing • Designing and building scalable backend systems using Java and the JVM ecosystem, • Developing clean, maintainable code from product requirements, • Applying TDD/BDD practices and modern engineering principles, • Building and maintaining cloud-native infrastructure, • Working on highly available distributed systems, • Troubleshooting production issues and driving root cause analysis, • Mentoring others and contributing to engineering best practices, • Exploring and introducing new tools and technologies Tech Stack Java | Vert.x | RxJava | Groovy Couchbase | Kafka Azure | Kubernetes | Terraform GitHub Actions | CI/CD pipelines What We're Looking For • Strong experience with Java (8+), • Hands-on expertise with cloud platforms (Azure, AWS, etc.), • Experience with SQL and NoSQL databases, • Proven ability to build and scale distributed systems, • Understanding of Agile delivery methods, • Exposure to reactive programming, • Experience in eCommerce or search platforms *Rates depend on experience and client requirements

Xpertex Xpertex, part of the larger Exponential-e Group, are an information and data cyber security company that have been providing high-security services and solutions to the public and private sector since 2006. With over 15 years’ experience Xpertex is a leader in cyber security, solving complex security problems across Government, Industry and Commerce. Through our experience, knowledge and expertise we have developed trusted relationships with high profile clients; giving them the best solutions that deliver high security Networks, enhanced Cyber Security and quality Information Assurance. People are the cornerstone of everything we do and Xpertex offers fantastic career opportunities for those motivated to become experts in their field. If you are a passionate individual and enjoy the challenge of a fun, fast-paced work environment connect with us today. Job Description Overall purpose of the job: • The role provides direct DevOps support and business consulting to Xpertex customers, based 5 days a week on customer site. The role sits within a DevOps Managed Service team offering IT Development, IT Security, IT Operations as well as assurance to Xpertex’s customer systems., • The post-holder will be skilled and experienced professional operating at the SFIA band specified, • The post-holder will be an active contributor to the development of the lines of service to which it relates for the reporting period Key responsibilities for this job: • Functional, Technical, support and optimisation of the technical systems within the Managed Service, • Technical Consultancy on multiple customer engagements at customer sites and remote support, • Development, Test & Release and Support of customer products, • Management of all planned outages and deployments of new services, software or capabilities – this includes upgrades, major changes and periods of special interest, • Engage with business development stakeholders to support growth in the relevant line-of-service., • Provide subject-matter-expertise in 2nd and 3rd Line support in response to queries received by peers and colleagues or managers, • Producing project artefacts, technical designs and support documentation that is reviewed, managed and stored appropriately in line with best practice, e.g. Prince2, TOGAF, ISO, AGILE etc., • Attendance at Daily Scrum or checkpoint meetings – including any associated documentation, managing incidents, escalations or upcoming upgrades, • Providing progress updates to relevant stakeholders including identification of risks and issues., • Researching market approaches, • To hold active security clearance Knowledge and experience required: • This role will require you to hold an active high level of DV security clearance prior to starting the role, • Experience working in DevOps related engagements or related field, • Knowledge of information technology practices and products to provide objective and credible opinions and guidance, • Experience of Linux/RHEL v6x, 7x and 8x, • JavaScript, SQL, Java, Python and Unix coding, • Scripting knowledge, • AGILE, • JIRA, • Communicate with impact and empathy and adapt style to suit the situation, • OpenText Service Manager and/or ServiceNow report creation knowledge, • Ability to provide written reports to a high standard with the appropriate caveats and guidance (internal and external facing material), • AWS infrastructure support and migration experience Desirable knowledge and experience: • AWS accreditation, • Knowledge of COTS products (including but not limited to; Elasticsearch, NiFi, Rabbit, Kafka, MongoDB, Hadoop, Ansible, Git and Kubernetes), • Development of dashboards for monitoring and alerting through Grafana, Splunk, Prometheus and OpenText Om and Ops Bridge, • On prem to cloud application migration, • Full, current UK Driving license and provision of vehicle for business purposes Our People Our people are what makes Exponential-e Group the company it is today. This year’s employee survey highlighted that 81% of employees who took the survey, would recommend a friend to work for our organisation. Learning and development are fundamental parts of daily life at Exponential-e. From their first day at the company, everyone is provided ample opportunities to develop their skills and broaden their horizons, with our own L&D team running a range of bespoke courses, based on the latest innovations and challenges across the digital landscape. Exponential-e Group is committed to providing equal opportunities in employment and treating all employees with respect and dignity. The company respects and values the diversity of its staff, striving to maintain an environment where there is opportunity for everyone to feel valued, their talents to be utilised and for both personal and organisational aspirations to be met. Every employee plays a vital role in helping to create an inclusive working environment by understanding and harnessing difference in a positive way.

You are encouraged to apply if you meet the below criteria but have a different job title Introduction A major UK organisation responsible for one of the country’s most recognised digital platforms is undergoing a large-scale technology transformation. They’re looking for a Senior Developer to help design, automate and support the infrastructure that powers critical services used by millions. Role Overview: • Location: Watford (Hybrid - 3 days in office a week), • Package: Up to £80,000 p/a + benefits, • Industry: Gaming / Lottery / Digital Platforms What You’ll Be Doing: • Designing, deploying and managing automation and monitoring platforms that support large-scale applications and services, • Building and maintaining monitoring, alerting and observability tooling across the platform, • Creating dashboards that translate complex technical data into meaningful insights for stakeholders, • Developing automation to integrate new systems using existing frameworks, • Managing and configuring automated job scheduling and platform workflows, • Building GitHub Actions pipelines to deploy code across test and production environments, • Driving best practices around security, compliance, reliability and cost optimisation, • Supporting capacity planning and troubleshooting across complex infrastructure environments, • Working with technical leads and delivery teams to break down work into manageable tasks and stories, • Collaborating with product owners, analysts and engineers to shape and prioritise the development backlog Main Skills Needed: • Strong experience with AWS cloud services and infrastructure automation, • Hands-on expertise with Terraform, Ansible and containerisation (Docker), • Strong Python development skills, including scripting and Lambda functions, • Experience building and managing CI/CD pipelines, ideally with GitHub Actions, • Monitoring and observability tooling such as AppDynamics, Grafana, InfluxDB, Graphite, Sensu or similar, • Experience working with serverless architectures (Lambda, API Gateway, DynamoDB, EventBridge), • Solid understanding of Linux / Unix administration and troubleshooting, • Knowledge of networking fundamentals including TCP/IP, HTTP/S, APIs and encryption, • Familiarity with collaboration tools like JIRA and Confluence, • Exposure to modern development stacks such as Node.js, Java or similar, • Understanding of infrastructure services like Consul, Vault or ServiceNow ITOM is beneficial, • Strong communication, problem-solving and analytical thinking skills What’s in It for You: • Annual company bonus scheme, • Matched pension contributions up to 8.5%, • 26 days annual leave plus additional wellbeing days and bank holidays, • Private medical cover and life assurance, • Enhanced maternity and paternity leave, • £500 annual wellbeing allowance, • Access to nutrition advice, personal training and health assessments, • Financial coaching and wellbeing support, • Opportunity to contribute to a large-scale technology transformation with real societal impact, • A collaborative culture focused on innovation, inclusion and continuous improvement If you’re nodding along, let’s take the next step. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. By applying you are confirming you are happy to be added to the Addition Solutions mailing list regarding future suitable positions. You can opt out of this at any time simply by contacting one of our consultants.

About Us Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world. Join Visa and do work that matters - to you, to your community, and to the world. Progress starts with you. Job Description Currencycloud was acquired by Visa in December 2021. Our Staff SoftwareEngineers are responsible for implementing an industry-leading API that has already processed over 50 billion USD of cross-border transactions for over 5 million end users, and is available to our clients 24x7. But we're not stopping there, and our engineers are at the forefront of taking us forward to meet the demands of even greater scale. This role will support the entire Customer tribe and work across multiple teams and domains, including account and contact management, reporting, wallets and balances, end-client onboarding, and notifications. It's a large area with very multiple technical challenges, mainly revolving around event-driven architectures and working at scale. This is a hands-on individual contributor role at a senior level where you'll lead technical widespread strategy, mentor senior engineers, and ensure alignment with organizational standards. Beyond delivery, you'll influence how other teams adopt event-driven principles and modern streaming practices, acting as a trusted technical authority across domains. Our stack runs on AWS as a set of distributed applications using Kubernetes and a microservice-led architecture. We are also utilizing Kafka for our streaming and PACT for Contract testing. What you'll get to do: • Own the technical vision and roadmap for services, ensuring they are robust, performant, and easy to consume by other teams., • Lead design and implementation of streaming solutions using Kafka, Flink, and related technologies., • Collaborate with product and engineering teams to understand requirements and deliver platform capabilities that accelerate their development., • Drive best practices for observability, reliability, and scalability in distributed systems., • Mentor and support engineers within the team, fostering a culture of technical excellence and continuous improvement., • Act as an evangelist for event-driven architectures - implement them, communicate their benefits, and champion adoption across the organization You'll get: • Clear ownership of technical vision and architectural standards for a critical domain., • Opportunity to influence and shape a new team from the ground up., • A modern tech stack and autonomy to innovate., • Strong organizational support and visibility for your work. Our Tech Stack includes: • Object-oriented programming forms the bulk of our codebase, currently in Java, versions 11+, and ideallySpringbootframework, • Highly-scalable, highly-available, cloud-native applications on AWS are key to our next phase of growth, are written to 12-factor principles and fit into our microservices architecture, • Cloud-related tools, services, and distributed system observability to support these applications, such as Docker, Kubernetes,ElasticSearch, log management systems, and Datadog APM, to name but a few, • API specifications, conforming to the OpenAPI (Swagger) standard, provide a clean boundary both externally between our customers and our product, and internally between our microservices, • SQL, and large SQL databases, provide the persistence layer for our applications. You'll be working with (and know the limitations of using) such large datastores, • Infrastructure automation is primarily owned by the infrastructure team, but you will be a consumer of their work, familiarity with AWS, Terraform and Docker is beneficial, • Testing approaches, including TDD, BDD and Contract Testing, all form an important part of our approach to quality assurance, ensuring that the code that we write forms products that are fit for use. We currently use a variety of frameworks including JUnit,RSpecand Cucumber, • Agile development, with teams broadly aligned with the Spotify - Squads and Tribes - model, helps us deliver incremental improvements to our products in an iterative manner. Advocating this model, and joining us on a journey of continuous improvement, is a key attribute of members of our teams, • Continuous Integration and Continuous Delivery pipelines allow us to automate-all-the-things, providing repeatable builds and consistent deployments, • GitHub, and the GitHub PR review process, forms a core part of our developer workflow, and peer reviews help share knowledge and improve quality, • Teamwork, and cross-team collaboration, is fundamental to the delivery of our applications. Whilst each application has an independent path to production, there will always be some activities and initiatives that span multiple teams and require cross-team collaboration. Within your team you'll need to collaborate with a number of stakeholders, including Product Owners and QA, as part of your product development This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager. Qualifications Preferred Qualifications:9 or more years of relevant work experience.5+ years experience in Java Backend Development.Passion for event-driven architectures and ability to advocate for them across teams.Proven experience leading technical teams or initiatives, including setting architectural direction.Skills with functional Java (versions 8+) and Spring (ideally Spring boot)Agile ways of working such as Scrum or Kanban in cross-functional teamsExpert knowledge of Docker, EKS, AWS (public cloud) and Kafka.Ability to communicate equally effectively with both technical and non-technical stakeholders.Modern Cloud-Native architectures and practices. To name some: high-availability, high-scalability, microservices, 12-factor apps, CI/CD, heavy testing automation and observability.TDD, BDD and Contract testing.Working in a DevOps environment, or passion and willingness to work in this way.Proven delivery of well-tested, scalable, fault-tolerant and performant solutions.A pragmatic approach to solutions and delivery of technical projects.A self-starter who takes accountability for getting things done.Pragmatism in decision making and ability to get buy-in for ideas and getting them done.Exceptional structure and attention to detail.Comfortable challenging the status quo and always curious about the way things work.Great written and verbal communication skills.Comfortable working in a scale-up or growth environment and as part of a wider team. Visa is an EEO Employer Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

Senior Penetration Tester What You’ll Do You’ll be on the front lines of our security efforts, thinking like an attacker to help us stay one step ahead. As a Senior Offensive Security Engineer, you’ll break things (responsibly), uncover weaknesses, and help us build stronger, more resilient systems. This is a hands-on role where you’ll move fast, experiment, and have real impact. You’ll work closely with engineers, product teams, and security to turn findings into fixes — not just reports. Day to day, you’ll: • Hack our own systems to find and fix vulnerabilities before others do, • Run white-box and black-box pentests across apps, infrastructure, and APIs, • Triage bug bounty reports and dig into external findings, • Go beyond surface issues with root cause and variant analysis, • Tear apart third-party tools and integrations to understand their risk, • Build scrappy (and scalable) tools for recon, automation, and insights, • Partner with engineers and the SOC to solve real security problems, • Share knowledge through demos, workshops, and hands-on sessions, • Help us decide where to focus to get the biggest security wins, • Shape and evolve our security programme as we grow Who You Are You’re curious, pragmatic, and love breaking things to make them better. You don’t just find problems — you help fix them. • Have solid experience in penetration testing and offensive security, • Can spot vulnerabilities in code (especially Java and Node.js), • Understand modern architectures — AWS, microservices, APIs, • Communicate clearly and give practical, actionable remediation advice, • Comfortable scripting and contributing to larger projects in Python, • Take ownership and don’t wait to be told what to do Nice to have: • Certs like OSCP, OSWE, CREST, GIAC, AWS (or equivalent experience), • CTFs, bug bounty hunting, or involvement in the security community

Role: Full Stack Engineer Salary: up to £95,000 Benefits: Equity, Pension, and Insurance Location: London - 1 day a week in the office Arcus Search have partnered with a high-growth AI start-up helping enterprise organisations adopt AI at scale. Following strong growth, they are looking for a Full Stack Engineer to lead the development of their flagship AI Product. The role: This is a hands-on senior engineering role with end-to-end ownership across the full stack. You'll write production-quality code, lead key architecture decisions, and collaborate closely with Product, Design, and GTM to shape and continuously improve the product. This is a high-impact position for an engineer who wants to contribute at both the technical and strategic level." We're looking for: • Background in B2B SaaS or AI-native organisations, • Strong command of JavaScript, TypeScript, or Vue, • Proficiency in Python or Java, • Proven track record building APIs, backend services, and data-driven product features, • Comfortable operating in fast-moving, ambiguous environments If interested, please apply below with your CV.

Java Senior Software Engineer : £400 - £650 Inside IR35 : Hybrid London (2 days per week) : Financial Services A financial services business is seeking a Java Senior Software Engineer to join a technology team based in London on a hybrid contract basis. Key requirements: • Strong core Java development experience, ideally within a financial services environment, • Spring Framework, including Spring Boot for building robust microservices, • AWS cloud infrastructure and deployment experience, • Test-driven development (TDD) as standard practice, • Familiarity with CI/CD pipelines and modern engineering tooling, • Experience working in Agile delivery teams Key details for a Senior Software Engineer: • £400 - £650 per day Inside IR35, • 2 days onsite per week (London), • Financial services background preferred, • Immediate starters preferred Apply now or reach out directly to find out more. Due to the high volume of applications, not all applicants will receive feedback. Java Senior Software Engineer : £400 - £650 Inside IR35 : Hybrid London (2 days per week) : Financial Services

We are supporting one of our client on a major Payments modernisation programme and we are looking to hire Lead Java Engineers to help design and build a new real-time event-driven platform. Note this role is a 12 months fixed term contract. Role Overview You will be part of a newly formed team modernising a legacy, on‑prem Payments application and migrating it into an Azure environment. The focus is on building Kafka topics (Event Hub) to stream live client trade data using modern, cloud‑native architecture. This is a hands-on lead role with strong ownership across design, build and technical direction. This role suits engineers who enjoy complex, low-latency, real-time systems and modern cloud platforms. Key Responsibilities • Design and build real-time, event-driven microservices in Java, • Create and manage Kafka topics (Azure Event Hub) for live trade data, • Contribute to the modernisation of legacy systems into Azure, • Work closely with front- and middle-office stakeholders on real-time FX flows, • Provide technical leadership, best practices and mentoring within the team What will make you successful? • Strong Java engineering background, • Proven experience building microservices architectures, • Hands-on experience with Kafka / event-driven systems, • Experience working in Azure environments (modernisation / cloud migration), • Solid understanding of payments or transactional systems, • Real-time FX trading experience (front or middle office – not back-office), • Payments, trade lifecycle or high-volume transactional flows If this sounds of interest, please get in touch to discuss further details.

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Backend Engineer will build innovative next-gen solutions that are at the forefront of the data industry. In this role, the Backend Software Engineer will be given full autonomy, taking ownership from design phase through to deployment, building scalable backend systems. The Backend Engineer will be responsible for the design, build and deployment of industry leading software solutions. You’ll work in collaboration with product, design and the wider engineering team to improve and scale existing features, as well as build brand new ones. The Backend Engineer will have: • Experience as a Backend of Full Stack Software Engineer, • Strong proficiency with either Java or Scala, • Experience with API development, Spring Boot, REST APIs, • Experience with either GCP or AWS, • Solid grasp of CI/CD practices, • Could come from roles like Back End Engineer, Back End Developer or Fullstack Engineer They offer a great package on top of your basic salary, including a bonus, private health and a generous pension. With the growth that they are going through, there is also plenty of opportunity for career progression. Backend Engineer London / hybrid (2 days in office) c. £75,000 + bonus + benefits

• Exp: 7-10years hands on Development, L3 and/or L2+ who is ready to pick up L3 part., • Java 8 & above dev experience minimum 2+ years and Production support L3 minimum 2+ yrs experience, • Having Advanced Java/j2ee experience (Rest api, servlet, JavaScript/html, jsp, jdbc, struts, Hibernate, Spring)

We are looking for a DevOps Engineer to join our team and actively engage with and support DevOps technology adoption and modernization by all application development teams at the firm. The candidate will provide implementation and support services for our existing and prospective DevOps technology stack, as well as work directly with developers to improve their overall experience and productivity via implementing our DevOps tools and processes. Additionally, the candidate will focus on modernization efforts, including the use of containers and container orchestration systems. The role will also work closely with the Cloud Engineering and Security groups to ensure that our DevOps technologies continue to support our cloud adoption, primarily via AWS and Azure. Responsibilities include: • Implement and maintain the system stability, security, and performance of on-premise DevOps tools, including Atlassian's suite (Jira, Confluence, Bitbucket, Bamboo), JFrog, and others., • Design and maintain scalable and reliable CI/CD pipelines to support software development and deployment processes across a wide range of technologies, including both native and containerized applications written in Java, C++, Python and other languages, including container deployment to Kubernetes., • Collaborate with application teams to integrate DevOps tools and methodologies into existing workflows, as well as containerize existing native applications., • Develop automation scripts and frameworks to streamline development and operational tasks., • Centrally monitor and manage code repositories, build systems, and deployment environments., • Provide technical guidance and support to development teams regarding DevOps best practices., • Evaluate and implement new DevOps tools and technologies. Requirements: • 4-6 years of proven experience in managing on-premise versions of DevOps tools, particularly Atlassian's suite and JFrog, as well as designing CI/CD systems involving both native and containerized applications, including deploying containerized applications onto Kubernetes., • Strong understanding of CI/CD principles and experience with pipeline design and implementation, especially with Atlassian Bamboo and Jenkins., • Strong proficiency in scripting languages such as Python, Bash, or PowerShell., • Solid understanding of version control systems, particularly Git., • Moderate proficiency in Java and C++, especially for basic code comprehension and ecosystem tooling (e.g. package management and compilation), • Moderate proficiency in infrastructure as code and configuration management tools such as Terraform and Ansible, as well as similar tools in the Kubernetes ecosystem including Helm and ArgoCD., • Excellent problem-solving skills and the ability to work independently or as part of a team., • Strong communication and collaboration skills to effectively interact with various stakeholders within the organization.

Senior Java Engineer – Low Latency Trading London / New York (Hybrid) Skills: Java, Java 23, Low Latency, Trading Platforms, Market Data, Aeron, Kafka, Chronicle, FIX Artemis Talent is partnering with a leading trading technology firm building high-performance, real-time trading systems used across global markets. This is not standard backend engineering. You’ll be working on latency-sensitive infrastructure across order management, execution, and market data where performance and reliability are critical. The Role • Design and build low-latency, high-throughput Java systems, • Optimise performance across latency, concurrency, and memory, • Contribute to mission-critical trading platforms (OMS/EMS, market data), • Work closely with engineering and business stakeholders in a live trading environment What They’re Looking For • Strong Java experience (6+ years), • Background in low-latency / high-performance systems, • Deep understanding of:, • Concurrency & multi-threading, • JVM tuning & memory optimisation, • Network programming (TCP/IP, NIO), • Experience within trading systems / financial markets, • Exposure to FIX or similar messaging protocols Why Join • Work on real-time trading infrastructure, • Solve complex performance challenges at scale, • High-impact role in a fast-paced engineering environment This is a role for engineers who understand production trading systems — not just code. You will have real input into new technology at the fore of a re-architecture. Please reach out for details

Lead & Senior Software Engineer | Fintech Accelerator | London | Scale-up Impact The Opportunity Born from the successful launch of a major digital bank, we are hiring a high-growth venture team with a fresh mission. Building products that solve real-world financial problems by putting the customer at the center of every decision. As a Lead & Senior Software Engineer, you will be the technical heartbeat of an Accelerator business. This is a rare chance to operate with the agility of a fintech while leveraging the stability and reach of a global financial leader. You will thrive in a squad-based environment where curiosity is celebrated and ideas are rapidly transformed into products. Your impact will be felt directly by customers as you help shape the future of digital finance. What You’ll Be Doing • Use domain modeling to build best-in-class, scalable business products., • Structure software for maximum readability, testability, and evolution., • Architect resilient solutions that eliminate single points of failure., • Develop secure, high-performance code to protect customers and data., • Lead prompt investigations into system issues to ensure long-term stability., • Oversee seamless, zero-downtime releases for a global user base., • Optimise data architecture for high-efficiency reading and writing., • Evolve the tech stack by integrating modern technologies and patterns. What They’re Looking For Essential • Proficiency in JVM-based languages, specifically Java or Kotlin., • Deep experience with cloud-native architecture and multi-cloud environments., • A pragmatic, iterative approach to solving complex technical challenges., • Strong architectural thinking with a focus on long-term scalability over short-term fixes., • Ability to adapt quickly to changing priorities and navigate "uncharted waters.", • A team-first mindset with a passion for mentoring and knowledge sharing., • High ethical standards and a commitment to building trust-based software. Nice to Have • Previous experience in a fintech or high-growth startup environment., • Contributions to open-source projects or a background in building custom tooling., • Familiarity with cross-functional "tribe and squad" working models. Why Join? • We are a people-first organisation that values collaboration over "hero" culture. You will have the autonomy to move between different product squads based on your interests and strengths, ensuring your work stays challenging and fresh., • Scale a new venture from the ground up with significant backing., • Work in a multi-cloud environment using the best tool for the job., • Continuous learning opportunities and a clear path for technical leadership., • A culture that champions diversity of thought and professional growth.

Java Engineer – Mobile Platform London based 2 days a week in the office I'm currently supporting a leading Bank in their search for an experienced Java Engineer to join their flagship mobile platform. The system is built in Java on AWS with a strong focus on automation and you'll be working in an agile feature team, responsible for the full life cycle development and constant evolution of their core platform, from gathering requirements and design, to testing and deployment. There is a large and consistently growing book of work across multiple work streams using cutting edge technology and this is a great opportunity to work alongside a well-established team of talented Engineers in a company that have a strong emphasis on upskilling and a knowledge sharing culture. Requirements: • Strong understanding of Java and Microservices, • Strong testing experience (TDD) using Junit, • Experience dealing with highly scalable systems with high throughput, • Good knowledge of AWS Does this sound like an opportunity that might be of interest to you? They are also open to candidates outside of industry, so if you're looking for a first step into Financial Services, apply, and we’ll give you a call to discuss it in more detail!

Senior Software Engineer Location: London, UK Working Environment: Hybrid (2 days on-site per week) The company is a leading financial data and analytics company and looking to hire a Senior Software Engineer with experience of working on the development of cloud databases. The business processes large-scale market data and delivers historical datasets and analytics products to institutional clients globally. This role focuses on building and maintaining systems that efficiently distribute data to customers across multiple delivery methods. You will contribute to the design, development, automation, and reliability of data infrastructure and workflows, whilst working in close collaboration with product and operations teams. Key Responsibilities • Design, analysis and implementation of features in the data distribution platform., • Ensure system reliability by implementing company and industry best practices., • Implement workflow management software to automate operational tasks and optimize the utilisation of infrastructure and applications., • Design and implement CI/CD workflows to maintain software quality via continuous and automated deployment and testing., • Evaluate and adopt relevant technologies and tools Key Requirements • Degree in computer science or other STEM degree plus relevant programming experience., • 6+ years of experience in software engineering, with proficiency programming in Python on Linux., • Experience working with AWS and Docker., • Experience with Databricks and/or Snowflake Desired, but not essential: • Experience with C/C++ or Java, • Knowledge of database optimisation and administration

Client: Largest American Credit Card Company Location: AMEX London Victoria 3 days/week, 2 days/week WFH Years of Exp: 3-9 years Skills: Full Stack, Kotlin (essential), TypeScript (essential), CI/CD, Java £25-£40/hr depending on experience and assessment level, Inside IR35 Visa sponsorship is not available. Strong fundamentals of Computer Science to scale developments. Excellent communication & interpersonal skills. Creative and a good team worker. Kotlin (or strong Java) & TypeScript mainly – full stack ideally. Fundamentals are very important. Data structures, algorithms & system designs. Online test will be given in the first instance. Successful candidates will go through a 2 round interview process. GitHub could help if it’s a quality one.

Backend Engineer 📍 London, England (Hybrid) 💼 Permanent My client is looking for a Backend Engineer to join a growing engineering team building modern, cloud-native products that directly impact customer experience and business growth. This is a hands-on role for someone who enjoys solving complex technical problems, collaborating across the business, and taking ownership from idea through to delivery. You won’t just be working through tickets you’ll work closely with product, leadership, and non-technical stakeholders to shape solutions that genuinely improve user journeys and solve real customer pain points. You’ll play a key role in evolving engineering standards, improving delivery processes, and helping the team leverage modern tooling, automation, and AI-assisted development in a pragmatic and secure way. About You You’re someone who takes ownership and cares deeply about delivering quality solutions. You’re naturally curious about modern engineering practices and emerging technologies, particularly how AI is shaping software development, but you apply these tools thoughtfully and pragmatically. You’re comfortable operating in fast-paced environments and making sound decisions even when there’s ambiguity. Strong communication skills are important in this role — you’ll regularly collaborate with both technical and non-technical stakeholders across the business. Most importantly, you’ll bring a collaborative mindset and a genuine focus on building products that create meaningful outcomes for both customers and the wider business. What You’ll Be Doing • Building and maintaining scalable, production-grade backend systems using Java or Kotlin, • Developing high-quality, maintainable code across a modern cloud-based architecture, • Collaborating with product and business stakeholders to turn commercial goals into clear technical solutions, • Taking ownership of features and services throughout the full software delivery lifecycle, • Improving engineering efficiency by identifying bottlenecks and introducing better workflows, automation, and tooling, • Contributing to architecture decisions, scalability improvements, and performance optimisation, • Driving best practices across code quality, testing, CI/CD, and engineering standards, • Working closely with frontend applications and customer journeys to continuously improve user experience, • Evaluating and adopting modern development tools, including AI-assisted engineering workflows, where they add meaningful value Requirements • 4+ years’ experience as a Software Engineer or Backend Engineer, • Strong backend development experience with Java or Kotlin, • Solid understanding of frontend technologies such as React and experience supporting production-grade user-facing applications, • Experience working with databases such as PostgreSQL or MongoDB in scalable environments, • Hands-on AWS experience, • Familiarity with containerisation and infrastructure as code tools such as Docker and Terraform, • Experience designing and maintaining CI/CD pipelines and owning services end-to-end, • Practical experience using AI-assisted development tools or automation to improve engineering workflows, with a good understanding of associated risks such as security and maintainability, • Experience working within regulated industries or environments

We’re working with a leading fixed income hedge fund in London that is expanding its front‑office engineering team. The fund has a strong performance track record, a deep commitment to technology, and a culture where engineers work side‑by‑side with quants and traders to build the systems that drive the investment process. In this role, you’ll help design, build, and enhance a range of high‑impact trading and research platforms. Projects vary from core trading system development to front‑office tooling, data‑driven applications, and the use of machine learning across the investment workflow. It’s a fast-moving, highly technical environment where code quality, performance, and reliability matter. The team runs weekly sprints, uses modern engineering practices (PR reviews, rapid releases, continuous development), and has a strong track record of developing talent. We’ve partnered with this group and their CTO, for several years and have placed multiple engineers into the team, so can provide detailed insight into structure, expectations, and progression. The fund looks for low‑ego, high‑performing engineers who enjoy ownership, collaboration, and solving complex problems with pragmatic, commercial solutions. You’ll have direct interaction with PMs, quants, and the CTO, contributing across design, architecture, and production support. Tech Environment • C# and .NET are central to the team’s core systems, • Python is widely used across quant and data groups, • Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals, • Exposure to high‑performance, low‑latency, or business‑critical systems is valuable, • Financial markets experience is not essential, but interest in Fixed Income/Rates is beneficial Requirements • Strong academic background in Computer Science or related field, • Excellent programming ability in C# and .NET, • Experience with large or complex data sets, • 1–5 years’ experience in a software engineering role, • Interest in finance; exposure to fixed income or systematic environments a plus, • Positive, pragmatic, collaborative mindset Due to demand, this role is advertised anonymously. If preferred, submit a blank application and we will contact you before requesting a CV. We can only respond to highly qualified candidates.

We are seeking a highly experienced Low Latency Java Developer to join our dynamic team. The ideal candidate will have a proven track record of developing low latency trading systems within the Capital Markets domain. This role requires extensive experience in building scalable, high-performance trading infrastructure, with an emphasis on minimizing latency and maximizing throughput. Key Responsibilities: • Design, develop, and maintain low latency trading systems using Java., • Collaborate with quantitative teams, traders, and infrastructure teams to optimize systems for ultra-low latency execution., • Implement real-time data processing, messaging, and order management solutions., • Conduct performance tuning and latency profiling to identify bottlenecks and optimize code., • Ensure system stability, reliability, and scalability under high-volume trading conditions., • Contribute to architecture design and best practices in low latency Java development., • Stay updated with the latest trends and technologies in algorithmic trading and high-frequency trading. Qualifications & Skills: • Minimum 10 years of experience in software development., • Proven experience working within Capital Markets, specifically in trading systems, order execution, or market data handling., • Extensive expertise in Java, with a strong understanding of low latency programming techniques and performance optimization., • Experience with high-performance data structures, multithreading, and concurrent programming in Java., • Familiarity with network protocols and hardware optimization for low latency., • Strong understanding of market data feeds, FIX protocol, and trading infrastructure is a plus., • Excellent problem-solving skills and meticulous attention to detail., • Bachelor’s degree in computer science, Engineering, or a related field; advanced degrees are a plus.

About ARQ ARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges, global impact, and the chance to grow fast with a world-class team, ARQ is the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You’ll collaborate with a talented team to create solutions that drive financial inclusion and transform the way people manage their money. What you'll be doing • The work will focus on greenfield development and improvement of existing systems, • Projects will include building REST APIs, engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity), • Our technology stack is based predominantly on Java 25 on the backend with Postgres database, • We rely on Spring Boot for quick and quality delivery, • We have a pragmatic approach to develop our business logic, focusing on clean code, with emphasis on maintainability and fast turnaround with TDD, DDD and continuous integration & delivery What you'll need • 5+ years of experience in Backend development, with fluency in Java, • Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or other Engineering / Science disciplines, • Quick learner with an ambitious and results driven personality, with excellent communication skills (english fluency, verbal and written), • Track record of building complex products that millions of people use in hypergrowth startups Benefits • Competitive salary, • Sign-on stock options bonus, so you become part of the success of the company, • Discretionary performance bonus (stock options), • Paid annual leave, • Own the development process that will face on the customer's impact, • Latest technology to work with, • Strong team that will help you improve your skills

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Blockchain Engineer (Senior SmartContract developer) Location: London- 2days onsite Duration: 04/12/2026 Role Description: We are seeking an experienced Smart Contract Developer with strong expertise in enterprise blockchain platforms, Solidity-based smart contracts, and cloud-native backend services. The ideal candidate will have hands-on experience delivering production-grade blockchain solutions across domains such as banking, supply chain, payments, and sustainability, and will be comfortable working in consortium-led, regulated environments. Key Responsibilities Design, develop, test, and deploy smart contracts for enterprise blockchain platforms (Ethereum, GoQuorum, Hyperledger Besu, Corda). Implement asset tokenization, on-chain/off-chain data models, and blockchain transaction workflows. Develop and integrate RESTful APIs and microservices (Node.js / Java) to interact with smart contracts. Ensure security, performance, and scalability of smart contracts and blockchain applications. Collaborate with architects, product owners, and external partners in multi-organization blockchain networks. Lead or mentor development teams, enforcing coding standards, testing, and best practices. Work closely with cloud infrastructure teams to deploy blockchain solutions using Azure/AWS services. Support POCs, innovation initiatives, and exploration of Layer 2 scaling solutions. Participate in design reviews, audits, and governance processes related to blockchain systems. Required Skills & Experience 8+ years of experience in software engineering with strong blockchain focus. Hands-on experience with Solidity smart contract development. Strong understanding of Ethereum-compatible platforms (GoQuorum, Hyperledger Besu). Experience with enterprise blockchain frameworks such as R3 Corda and Ripple. Proficiency in Node.js, TypeScript, and/or Java (Spring Boot). Strong knowledge of microservices architecture and asynchronous processing patterns. Experience designing on-chain vs off-chain data models. Familiarity with REST APIs, event-driven systems, and message queues. Solid understanding of blockchain security concepts (permissions, key management, transaction integrity). If you are interested in this position and would like to learn more, please send through your CV and we will get in touch with you as soon as possible. Please note, candidates are often Shortlisted within 48 hours.

About AppFactor AppFactor is the first fully native, end-to-end agentic orchestration platform built to automate software maintenance and modernisation at scale. We free enterprise engineering teams from the maintenance treadmill by cutting technical debt, clearing backlogs, and deploying optimised, cloud-native software autonomously. Unlike code generation solutions stuck in a code-level vacuum, AppFactor's platform is self-informed by where software actually runs. Full-stack context, parallel agent execution, built-in verification, and drift-free deployments mean the system doesn't just write code: It understands, fixes, and ships it end-to-end. About the Role You’ll be our first Solutions Engineering hire. A rare chance to own the function from the ground up. Working directly alongside our CEO, CTO and Account Executives, you'll be the technical authority that bridges our agentic orchestration platform with the enterprise customers. You'll lead technical discovery, build compelling proof of value cases, and become the trusted expert customers turn to when evaluating and adopting AppFactor. Whether they're tackling maintenance backlogs, cloud migrations, or large-scale code transformations, you'll know the platform inside out and know how to make it land. This isn't a role with a ready-made playbook: That’s where you come in. You'll bring the entrepreneurial drive and comfort with ambiguity that early-stage environments demand and the seniority to build the foundations that scale with us. What you'll do • Build the SE function — You're the first. That means creating the playbooks, assets, and processes from scratch — and having the seniority and drive to do it without a template., • Own the technical sale — From first discovery call to signed deal, you'll lead the technical side alongside our AEs — qualifying fit, running demos, building proof of value cases, and making sure the right stakeholders become champions., • Make the platform land — Translate AppFactor's agentic orchestration capabilities into outcomes that resonate across the room, whether you're talking to a VP of Engineering or a CFO., • Evangelize the platform — Represent AppFactor externally through enablement sessions, partner conversations, and thought leadership. You'll help establish AppFactor as the definitive platform for automated software maintenance and modernisation at scale., • Connect the dots internally — Feed customer insight back into Product, enable the GTM team, and help Customer Success set up for a smooth handoff. You'll be the connective tissue across the business. What You'll Bring to the Team Must-Haves • Senior SE pedigree — At least 3 years in a Solutions Engineering or Technical Consulting role with a track record of owning complex technical sales cycles in enterprise accounts., • Strong development foundation — 7+ years of hands-on experience in technologies such as Java, .NET, or similar enterprise frameworks, with the credibility to engage senior technical stakeholders from the development domain., • Technical breadth — Experience evaluating complex application architectures and enterprise-grade environments, with a strong understanding of cloud-native architecture, containers, Kubernetes, and DevOps practices. Modernisation experience a significant advantage., • RFP ownership — Demonstrated experience leading the assembly of technical materials in response to customer RFIs and RFPs., • Clear, compelling communicator — Able to create technical documentation, deliver training, and present complex concepts accessibly to both technical and business audiences — in writing and in person., • Startup DNA — You've worked in early-stage, high-growth B2B SaaS environments, know how to build without a blueprint, and thrive when the company is still being built around you., • Resourceful under constraints — When the product doesn't do exactly what a customer needs, you don't hit a wall. You find the angle, shape the solution, and make it work. Why AppFactor? The problem is real. Technical debt costs enterprises billions in lost engineering velocity every year. AI coding tools are only compounding the problem. AppFactor is the first agentic orchestration platform that automates the full cycle — from identifying and fixing debt to deploying production-ready software end-to-end. The timing is right. The platform is proven, customers are live, and the traction is there. You're joining at the moment where the right go-to-market motion turns a great product into a category leader. The team is serious. Industry veterans who've built and scaled enterprise software companies, engineers who deeply understand the problem, and a founding team that operates with high trust and high autonomy. You'll have real influence here from day one. Benefits and Compensation • (Equity package), • Remote-first, • Flexible working hours, • 28 days holiday incl. bank holidays + your birthday off, • 10-30% travel (UK/EU) to meet customers and the team Join us! Ready to Liberate Engineering Teams? If you're excited about transforming how enterprise software gets built and want to be part of solving one of the biggest challenges in technology, we want to hear from you. This role requires the right to work in the UK. The role is Remote First, but we ideally look for candidates in the London area.

Lead Mobile Developer | Tech for Good 🚀 💰Up to £85,000 per anum 🏡Remote working – once a month onsite in Epsom, Surrey 📱Swift, SwiftUI or Java & Kotlin experience We're partnering with a Tech for Good business, who are developing mission-critical mobile and cloud-based solution at scale across the business. Their products support users in real-time environments where reliability, performance and resilience are essential. They are now rebuilding their mobile applications across iOS and Android, and are looking for a Lead Mobile Developer to support this. As the Lead Mobile Developer, you will provide hands-on technical leadership across the mobiles to help shape architecture, engineering standards and delivery practices whilst supporting a small development team. 🚀 Why this role is exciting: • Greenfield rebuild of iOS & Android apps from the ground up... real ownership, real impact, • Modern cloud-native platform, freshly modernised and built for scale, • Backed by new PE investment with ~20% growth and serious engineering headcount plans for the next 12 months 🤖 AI is a big deal here: • Heavy investment in AI-assisted engineering workflows and agentic development tooling, • Huge data assets (location, sensors, incident history) powering the next generation of the product, • Be part of shaping how AI accelerates mobile delivery in a safety-critical environment 📱 What they're looking for: • Strong native mobile experience - iOS (Swift/SwiftUI) and/or Android (Kotlin/Java), • Solid grasp of REST APIs, real-time app behaviour and authentication flows, • Quality-first mindset - testing, architecture, code reviews, performance, • Interest in AI-assisted development tools and modern engineering automation, • Leadership behaviours - mentoring, guiding technical decisions, collaborating cross-functionally If this sounds like you, please apply below. Lead Mobile Developer | Tech for Good 🚀