Trabajos spring developer en Reino Unido

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Mid Java Developer – Leading FinTech Location – hybrid in London 3 days a week Salary – up to £90k + bonus We are working with our long-term partners on the hunt for numerous Mid-level Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by a prominent capital market. This is an excellent opportunity for someone looking for their 2nd or 3rd job in software development as they are looking for someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: • Core Java, • Developing software from scratch WITHOUT the use of frameworks e.g. Spring, • Multithreading, • TDD, CI/CD, Paired-programming environment, • Data structures, algorithms, threads, • Working in a modern FinTech environment e.g. startup is a plus, • An interest in the financial sector, FX and trading If you are looking to dip your toes into the cloud, this is a great opportunity as they are building software to be agnostic and run across both GCP and AWS. As a Mid Java Developer, you will enjoy endless fantastic benefits: • Flexible working from home policy, • Personal training budget, • Private health insurance, • Life assurance, • Dental & eyecare insurance, • Bonus, • Matched pension scheme, • 25 days holiday + national holidays (increases with service), • Long service awards, • Referral fee upwards of £2000 If you are looking for your next challenge to progress your career to the next level, apply now for immediate consideration in this unmissable Mid Java Developer position! Please note: Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK.

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to work on an exciting Product roadmap over the coming years. This role is based out of central London on a hybrid approach and looking for people that are willing to come to their office 3 days per week, they may have a bit of flexibility on this and very flexible hours. Tech Stack: • Java 11 (moving to Java 17), • Relational Databases- SQL and ORM Tech (JPA, Hibernate), • Frameworks- preferably Vaadin or JSF, Wicket, Spring MVC, • Spring Boot, • AWS, • Microservices, • ML/ Big Data- desirable, • Docker- desirable, • messaging- GRPC/Solis- desirable Responsibilities: • Design and development of low latency software components, • Contribute across the entire SDLC, • write and enhance well structured, testable, scalable and efficient code, • setup and maintain development process tools, • Collaborate in agile development process meetings, stand ups, sprint panning, retrospectives and foster collaboration, • mentor more junior engineers, • collaborate with cross functional teams, • champion best practice Projects: • migration from some monolithic architecture to microservices, • migration from java 11 to java 17, • migration to new versions of Vaadin, • brand new lender platform and payment systems for their customers, • Building a white label solution or managed service offering Cultural fit: • Super collaborative, • process light and the Senior Engineers are able to introduce ideas and have autonomy to drive change, • looking for self starters, pragmatic engineers that will be accustomed to working in a start up/scale up This is a brilliant role for someone that wants to play a big part in the growth of a team and a business, where there voice is heard and ideas are shared. The successful Senior Engineer will get the opportunity to work on a trail blazing fintech product with a great bunch of people, with no red tape or bureaucracy. Salary is up to £95k plus a competitive benefits package which includes 5% matched pension (salary sacrifice), 25 days holiday plus bank holidays, private health care with aviva, income protection, super flexible hours, L&D budget, a modern and state of the art office with lots of socials and an outstanding Engineering Leader who has a history of building high performing teams and growth of individuals. If this sounds like you then please click apply now! Senior Java Developer- London/Hybrid- up to £95k

I'm working with a fantastic software company that's looking for a Principal Software Engineer to join their team. They've developed a powerful product that utilises data analytics and machine learning to optimise inventory data, built primarily on Java. This is a key role where you'll take ownership of the technical roadmap and manage solutions architecture, acting as a vital link between leadership and the engineering team. Job Title: Principal Software Engineer Location: Central London (Office Based) Salary: £80,000 - £95,000 Industry: Software/Data Analytics Requirements: • Over 7 years of experience as a Full Stack Developer., • Proven track record in leading product development and architecting solutions., • Demonstrated expertise in scaling and managing production systems., • Provides comprehensive technical development support, both broad and detailed., • Highly proficient in: Python, Java, Spring, JavaScript, Vue, Elasticsearch, PostgreSQL, cloud computing (AWS, Azure), Terraform, ML, GitHub Actions, Jenkins, and Linux. Responsibilities: • Own the technical roadmap, aligning it with the product strategy to achieve key business objectives., • Architect and manage robust solutions and APIs., • Deliver critical software engineering, with a focus on rapid prototyping., • Inspire and mentor a highly motivated, polyglot on-site development team., • Lead R&D initiatives and technical debt reduction, actively supporting team members., • Facilitate and lead sprint retrospective routines, fostering continuous improvement., • Drive the investigation and adoption of new technologies, tools, and processes to enhance product and solution delivery. If you are an highly experienced Full Stack Java Developer and have brilliant experience with Architecture and Roadmaps then Apply!

Senior Java Engineer London Salary: £70,000 - 80,000 Bonus: TBC This is a hybrid role that requires 3 days a week office attendance About the Company An exciting opportunity has arisen for a Senior Java Engineer to be part of a highly innovative forward thinking online challenger bank start-up funded by a major fund. You will be based remotely and from our London office You will be joining a small but experienced team building up the functionality of a bespoke best-of-breed banking technology, a single platform delivering loan issue, card issue and recovery. We’re looking for an exceptional Senior Java Engineer who will work closely with the Java Team Lead & CTO as we scale up and modernise our business processes and tech stack. The role includes hands-on development, mentoring other developers, driving code review processes as well as working with the CTO to define the technical architecture and integration requirements for the solution. This is a great opportunity for a leading edge, innovative, high-class Java developer to enter the company at a time when you can make your mark on the development of the company and contribute to the quality work that has already been created. Key Skill Requirements The successful candidate will have: • 5+ years commercial or similar experience, • Architected, designed, and led development of a microservices solution using Spring Boot, • Experience of Docker and AWS (ideally EventBridge & SQS), • Experience of implementing RESTful web services, • Experience of unit testing using Junit, mocking frameworks and integration testing, • Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway, • Experience of deploying and using industry standard development tools including Swagger, Jenkins About You You will have a strong desire to work in a start-up / scale-up environment with a delivery focused approach to problem solving. You will be a born problem solver, keen to dig into the technology supporting our business and demonstrating high standards of professionalism and integrity throughout the working day. You will be equally comfortable mentoring colleagues through technical detail as well as rolling your sleeves up and leading from the front. Please inform us if you have a disability that will require any reasonable adjustments for the recruitment process or job role.

🌟 Senior Software Developer (Java / Spring) | London (Hybrid) | £50K 💰 📍 Location: London (Hybrid) 🕒 Experience: 2+ years 💼 Type: Full-time | Permanent 🚀 The company are developing software solutions that address a wide range of challenges faced by the public sector. Their customers include government departments, agencies, and other public sector organisations, helping them streamline processes and achieve their goals effectively. They are looking for a skilled Senior Software Engineer who looking is eager to learn, and are ready to contribute to our ongoing growth and success. 💻 What You’ll Do: • 🔧 Develop and maintain applications using Java & Spring Boot, • ✅ Write and maintain unit, integration, and end-to-end tests, • 🔍 Participate in code reviews and uphold coding standards, • 🎨 Help design scalable, secure features and services, • 🛠️ Troubleshoot and debug complex systems, • 📦 Use CI/CD tools 🧠 What You Bring: • 🧪 2+ years’ commercial experience in Java with Spring, • 🧰 Solid grasp of modern Java practices, • 🔄 Familiarity with Agile methodologies & short delivery cycles, • ⚙️ Hands-on with CI tools and Git-based workflows 💼 What We Offer: • 💰 Salary: Up to £50k DOE, • 🏠 Flexible Hybrid Working - 2 days onsite per week, • 🎉 Profit share scheme to reward your contributions., • 🏥 Private health insurance to keep you covered., • 💼 Pension scheme for a secure future. ✨ If you're passionate about writing high-quality code and want to work on software that makes a difference, this role is for you!

Senior Java Developer This is a hybrid role requiring 1/2 days per week in their London office. La Fosse are partnering with a market leading InsurTech provider who are in the market for a skilled Senior Java Developer to join the core software engineering team. This role provides a unique opportunity to lead technical initiatives, mentor team members and help build systems that are scalable, maintainable, and deliver value. The work you do will span the full software development lifecycle, from idea to production, and you’ll be empowered to take ownership of complex engineering challenges. Key Requirements: • Java, • Spring Boot, • AWS, • Excellent communication., • Bachelors or Masters degree., • Experience working at a start-up / scale-up. Compensation: This role is offering an incredibly competitive salary + extended benefits package. How to apply: Please apply through the link on this page. This role doesn't offer sponsorship

Job Title: Java Developer Location: London (Hybrid – 3 days in office per week) Salary: Up to £80,000 per annum About the Company: Join a leading travel company renowned for delivering exceptional customer experiences and innovative digital solutions. As part of a forward-thinking technology team, you’ll contribute to shaping the future of travel by building scalable, high-performance applications used by millions of customers worldwide. The Role: We are looking for a skilled Java Developer to join our London-based technology team. You will work on designing, developing, and maintaining enterprise-level applications that support our digital platforms and customer-facing services. Key Responsibilities: • Design, develop, and maintain high-quality Java applications and microservices., • Collaborate with cross-functional teams including product, UX, and QA to deliver innovative solutions., • Participate in full software development lifecycle: analysis, design, development, testing, deployment, and support., • Ensure code quality through unit testing, code reviews, and adherence to best practices., • Troubleshoot, debug, and optimize applications for performance and scalability., • Stay up-to-date with the latest Java technologies and industry trends. Required Skills & Experience: • Strong experience in Java (Java 8+) development., • Solid understanding of object-oriented programming and design patterns., • Experience with Spring Framework (Spring Boot, Spring MVC, Spring Data)., • Experience with relational databases (e.g., MySQL, PostgreSQL) and writing SQL queries., • Knowledge of RESTful API development and integration., • Familiarity with version control systems, preferably Git., • Understanding of Agile/Scrum methodologies. Desirable Skills: • Experience with cloud platforms (AWS, Azure, or GCP)., • Knowledge of front-end technologies (JavaScript, Angular, React)., • Familiarity with CI/CD pipelines and DevOps practices. What We Offer: • Competitive salary up to £80,000., • Hybrid working with 3 days in the London office., • Opportunity to work on innovative projects in the travel industry., • Collaborative and supportive team environment., • Learning and development opportunities to grow your career.

🚀 Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. If you’re a hands-on backend engineer passionate about distributed systems, resilience, and clean architecture — this is your next challenge. 🌍 Location & Flexibility Work remotely from anywhere in the UK, with the option to use a London office when you prefer in-person time. Team meetups are planned in advance, flexibility is the default. 💡 Required Experience • 10+ years’ experience as a Java Backend Engineer / Senior Java Developer, • Proven track record building and scaling Kafka-based architectures in production, • Deep expertise with Spring Boot (Security, Web, and Data modules), • Experience designing and maintaining event-driven systems with high throughput and reliability, • Strong understanding of observability, availability, and resilience, • Experience working in security-conscious, regulated, or mission-critical domains, • Skilled with CI/CD pipelines, Infrastructure-as-Code, and containerized environments (Docker, Kubernetes), • Experience integrating with AI development tools such as Copilot, Cody, or Augmentcode 🌟 Nice to Have • Experience designing or contributing to messaging or synchronization systems, • Familiarity with zero-trust architectures or encrypted transport frameworks 💥 Why Join • Build real-world impact systems for secure, distributed operations, • Join a high-trust, collaborative engineering culture, • Work with cutting-edge tech in real-time and AI-integrated environments, • Enjoy remote flexibility, competitive pay, and equity options Ready to build something that matters? At Pixelated People, we don’t just do inclusion and diversity. We embrace people that have different opinions, perspectives and personalities. Because we believe that by seeing the world from all sorts of angles, we can make life better for all the people who live in it. So we want you to know that the things that make you, you — like your age, ability, background and identity — are things that we celebrate and support.

Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading Role Overview: I am seeking a Senior Java Developer to join a leading Investment Bank as part of their global front-office technology team. This is a hands-on position focused on working with a real-time, event-driven system that underpins our industry-leading platform. You will play a crucial role in modernizing and enhancing core system components, ensuring the platform can scale to meet the growing demands of business event processing and data management. Key Responsibilities: • Develop, implement, and maintain highly performant, secure, and scalable Java applications., • Java Server Side Concurrent Programming with Spring Boot (Core Spring), • Leverage Kafka or other message queue systems to handle asynchronous processing., • Design, optimize, and maintain MongoDB (NoSQL) database schemas., • Craft and optimize advanced SQL queries for relational databases., • Create comprehensive unit and integration tests using JUnit and other relevant frameworks., • Take full ownership of feature development from design through to production deployment., • Collaborate effectively with cross-functional teams, balancing independence and teamwork. Key Skills: • Java, • Kotlin, • Concurrency, • Message-driven architectures - Kafka, MQ, • SQL Queries, • Unix/Linux scripting, • Multithreading This is a full time role offering a salary of up to £130k. You will be required to attend the office in London 3 times per week. If you are interested or know anyone who might be please apply or email me direct - Senior Java Developer - Java, Kotlin, Concurrency, Kafka, RDBMS, Unix, Linux, Front Office, Multi-threading

Java Software Engineer (Product Engineering- Real-time Payments) Location: London, Hybrid (1-2 days/week) A Java Software Engineer is needed for a highly regarded payment solutions company; they are used by major global financial institutions standing out for its low-code, cloud-native real-time payments platform They’re looking for a Java Developer with a product engineering background to join their team, building highly available, scalable systems that power next-generation payments. Your Background/ Tech Stack • Java with Spring, • Reactive programming (AKKA etc), • Kafka or JMS, • Solid understanding of CI/CD pipelines, automation, and Agile delivery practices., • Experience working with MongoDB or other NoSQL databases. The Role • Play a key role in developing real-time payment processing systems using Java, Spring, and Reactive frameworks., • Follow TDD and BDD methodologies to ensure clean, maintainable, and well-tested code., • Contribute to technical and design decisions, shaping the future of the payments platform., • Build reusable, modular code and optimise applications for maximum speed and scalability., • Work within an Agile delivery environment, collaborating closely with cross-functional teams., • Leverage automation, CI/CD pipelines, and DevOps tools to streamline deployments and improve delivery efficiency. This is a great opportunity to work in a fast-paced, collaborative engineering environment, designing and developing products that sit at the heart of a global payments network. Please apply now for more information. Software Engineer- Product Engineering- Real-time Payments

I'm currently working with a fantastic client in London who is looking to hire a Full Stack Developer on a permanent basis. They're seeking someone with over 4 years of development experience who thrives in a collaborative, office-based environment. Their core software product helps leading industrial organizations enhance asset performance by applying data science and machine learning to minimize waste and boost reliability. Full Stack Developer Opportunity • Location: London (Office-based, collaborative team), • Salary: £55,000 - £65,000, • Industry: Data Analytics / Software, • Start: ASAP As a Full Stack Developer, you will: • Design and implement services using Java and Python., • Collaborate on infrastructure setup and maintenance., • Focus on testing, coding, and refactoring to ensure high-quality solutions., • Work closely with cross-functional teams (developers, DevOps, data scientists, product managers) in an agile methodology. Their Tech Stack includes: • Backend: Spring & Spring Boot, Java, Python, FastAPI, • Frontend: Vue.js, • Cloud: AWS, • Databases: Elasticsearch & Postgres, • And more... This role offers exciting opportunities to dive into various areas, including Natural Language Processing, Random Forest and Monte Carlo Simulations, Classification, Big Data ETL Pipelines, High Volume Event Processing, Predictive Analysis, CI/CD Cloud Ops, Mentoring, UX Design, Data Visualization, and Build Management Systems. This is a brilliant opportunity to join a company at the forefront of data analytics and make a significant impact.

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: • Develop and maintain trading applications using Java and Spring Framework., • Integrate and support ION MarketView, XTP, Fidessa, and Treasury Suite platforms., • Collaborate with global teams in Agile environments., • 10+ years Java development experience., • Strong multi-threading and low-latency programming., • Deep understanding of financial instruments (Rates, Credit, Derivatives)., • Proven experience with ION platforms and FIX protocol., • Familiarity with functional programming and SOLID principles.

Senior Software Engineer / Developer (Java AWS) London / WFH to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Senior Software Engineer you will join a fairly new team working on a new crypto offering to design, develop and implement high performance cloud-native backend services including owning DevOps processes to ensure systems are robust, secure and observable. You'll be working with a modern tech stack using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana / Splunk. About you: • You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis, • You have experience of running production workloads on Kubernetes (Amazon EKS preferred), • You have a good knowledge of DevOps practices including CI/CD, IaC (Terraform) and container orchestration, • You have experience with observability tooling, • You have a solid understanding of secure coding and deployment practices, • You're collaborative and pragmatic with great communication skills What's in it for you: • Salary to £100k + Bonus, • Pension, Private Medical Care, Life Assurance, • Option to buy or sell holiday days, • Wellness benefits and gym subsidy, • Childcare vouchers, • Enhanced paternity leave including shared parental pay and leave, • Employee led LGBTQ+, Women's, Black and Parents & Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture, • Plus a range of other perks Apply now to find out more about this Senior Software Engineer / Developer (Java AWS Spring Boot) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Job description Java Full-Stack Developer Location: London (Hybrid) Salary: £85,000 – £90,000 + benefits I’ve partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and focus on what matters. Their products combine Java, AI, and modern web technologies to deliver clarity and speed for decision-makers. They’re estimated at nearly $30M, annually, and have 3 offices globally, with the view to grow their UK footprint. Having recently doubled down on AI-driven tools, they are tackling the biggest pain points stakeholders have, information overload and poor decision-making efficiency. What You’ll Do • Develop and enhance their core services built in Java (Spring Boot)., • Work on full-stack features using React (or similar modern JS frameworks)., • Collaborate on new product initiatives, including AI-powered tools., • Contribute to architecture decisions and help shape the future Tech Stack • Backend: Java (Spring Boot), Ruby on Rails (legacy), Golang, Python (AI services), • Frontend: React, TypeScript, • Other: Kubernetes, modern CI/CD pipelines What We’re Looking For • Strong experience with Java and Spring Boot., • Full-stack skills with React or similar frameworks is desired, • Bonus points for Kubernetes, cloud-native development, or exposure to AI-driven products., • Someone curious, collaborative, and excited to work on modern, evolving products! The successful Java developer can be paid upto £85k, private medical cover, life insurance, 25 days leave plus bank holidays, training budget and mental health / wellbeing benefits available too. Interested in learning more? Or know people who might be interested? Please get in touch via Rebeka.mulk @ opusrs.com or add me on Linkedin – Rebeka Mulk @ Opus recruitment solutions to have an informal chat. Please note, this is a hybrid role in London (can also offer flexibility for the right individual). No Sponsorship on offer.

Java Developer – Financial Technology – London / Hybrid (INSIDE IR35) (Key skills: Java, Spring Boot, Kubernetes, AWS EKS, Amazon Redshift, PostgreSQL, RESTful APIs, CI/CD, Microservices, iOS/Android Native, Agile, Financial Services) Are you a highly skilled Java Developer with a passion for building scalable, high-performance financial systems? Do you enjoy working with cutting-edge technologies across backend, cloud, and mobile ecosystems? If so, this is a fantastic opportunity to join a growing FinTech organisation at the heart of digital transformation in financial services. Our client, an international financial technology company, is seeking a Java Developer to play a key role in designing, developing, and deploying next-generation financial applications. You will work on complex, high-availability systems built using Spring Boot, deployed on AWS EKS / Kubernetes, and integrated with modern mobile and analytics platforms. As part of a collaborative, Agile development team, you will be responsible for building robust microservices, managing data pipelines across PostgreSQL and Amazon Redshift, and delivering performant, secure RESTful APIs used across web and mobile platforms. You’ll work closely with iOS and Android engineers to ensure seamless end-to-end integration, supporting mobile-first financial products that reach thousands of users daily. To succeed, you’ll need strong Java and Spring Boot experience, solid understanding of Kubernetes and AWS services, and hands-on database development with SQL-based systems. Familiarity with mobile integrations (iOS / Android native), RESTful API design, and Agile delivery methodologies will be highly beneficial. This is an exciting opportunity to work in a dynamic FinTech environment where innovation, quality, and performance are at the core of every release. You’ll be joining a business that invests heavily in engineering excellence, providing a platform for long-term career growth in the financial technology domain. Location: London, UK / Hybrid working Day Rate: £400 per day (INSIDE IR35) Applicants must have the right to work in the UK. NOIRUKTECHREC NOIRUKREC

Do you have 1 - 3 years commercial experience developing software with Java? Looking to join a company when you can make a real impact? 🚀 Java Software Developer – SaaS Solutions 🚀 💲 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office We have a fantastic brand-new opportunity for a Java Software Developer to join a fast-growing London-based technology SME that provides digital and SaaS solutions for a number of UK companies and government functions. Their admirable dedication and customer focus has already contributed to significant annual growth and driven long-standing partnerships with the likes of the Ministry of Defense, HM Treasury, and the Departments of Work & Pensions and International Trade. They are looking for a motivated Java Software Developer with experience with: • Java, • Spring Boot, • Microservices, • Containerisation using Docker, Kubernetes, • Developing cloud-native applications with AWS, GCP, Azure, • SQL, NoSQL and other tools and scripting skills As a Java Software Developer, you will enjoy fantastic benefits: • Bonus, • Private health insurance (covering eye and dental too), • Life assurance, • Enhanced pension contributions, • 25 days holiday + bank holiday which increases with tenure, • Season ticket loan, • Team away days and monthly socials, • Personal development training budget, • Enhanced maternity and shared parental leave If you would like to join a company that will do wonders for your career with unlimited opportunities for progression, while also working from home 3 days a week, apply now and be considered immediately as a Java Software Developer! Please note: Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK.

Lead Software Engineer / Developer (Java Spring Boot AWS) London / WFH to £115k Are you a hands-on backend focussed Software Engineer with team leadership skills? You could be progressing your career in a Lead Software Engineer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Lead Software Engineer you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location / WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City with an upbeat team environment, casual dress code and a range of facilities including roof terrace, restaurant and break out areas. About you: • You have strong technical and people leadership skills, • You have advanced experience of building cloud-native, distributed systems using Java and Spring Boot, • You have a strong knowledge of AWS including Amazon EKS, • You have experience with Kafka and event driven architectures, • You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders What's in it for you: As a Lead Software Engineer you will earn a competitive package: • Salary to £115k + Bonus, • Pension, Private Medical Care, Life Assurance, • Option to buy or sell holiday days, • Wellness benefits and gym subsidy, • Childcare vouchers, • Enhanced paternity leave including shared parental pay and leave, • Employee led LGBTQ+, Women's, Black and Parents & Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture, • Plus a range of other perks Apply now to find out more about this Lead Software Engineer / Developer (Java Spring Boot AWS) opportunity.

We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. Java Backend Engineer / Senior Java Developer. Senior Java Engineer (Kafka, Spring Boot, Microservices).

Principal Front Office Developer - Trade Capture, Pricing, Risk, and STP You will be: • Accountable for the successful software delivery from inception to deployment for the complete Front Office Derivatives Technology Stack, • Deliver key strategic business goals by identifying systems changes that support revenue generation and regulatory reporting for the Front Office businesses, focusing on Derivatives Markets, • Build the future technology roadmap for EMEA for Derivatives working with Product Manager, aligning to the global strategic technology framework, • Consolidate the distributed technology landscape in EMEA Derivatives for various entities into a consistent technology stack, • Responsible for the implementation of high priority, high value changes in close cooperation with Product Managers ensuring fast, stable, resilient and supportable systems within the approved budgetary framework., • Lead the team of 15+ Front Office developers to deliver on their individual responsibilities and ensure that the Front Office desks are fully supported with a global system architecture. Responsibilities: • Design, develop, and maintain high-quality Java-based software components for trade capture, pricing, risk calculation, payments, settlements, and regulatory reporting, • Develop scalable and accurate solutions to meet the evolving needs of our business, • Be a part of the global Level 3 support team, providing on-call support and responding to pager duty alerts, • Follow and improve established Software Development Life Cycle (SDLC) processes, • Automate tasks in the Continuous Integration/Continuous Delivery (CI/CD) pipeline to improve efficiency and reduce errors Qualifications: • Bachelor's degree in Computer Science, Mathematics, Physics, Engineering, or a similar field, • 5+ years of hands-on experience developing Java applications in a financial services environment (Java 21), • Excellent knowledge in algorithms and data structures, object-oriented design, and microservices architecture (This will be tested), • Proven record of complex software delivery in the Interest Rates domain, • Excellent Java 21, Spring Boot, strong practical experience with containers, REST APIs, and WebSockets, • Strong experience of Agile, SCRUM, and test-driven development processes, • Strong leadership experience (at least 5 years of leading a team) Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s, developing microservices and upgrading existing systems. Experience needed – • Java 21, • TDD, • AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? • Hybrid working(1-2 days a week in the office), • Equity, • 25 days annual leave, • Solid pension, • And more If you’re interested please apply or send your CV to to apply. Sponsorship isn’t available. Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL |

Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: • Build and scale backend services using Java and Spring Boot, • Shape a modern microservices architecture for a high-availability platform, • Deploy and manage services in AWS with Kubernetes (EKS), • Design, implement, and own features end-to-end from discovery to production support, • Advocate for clean code, automated testing, and CI/CD best practices, • Mentor other engineers and contribute to a culture of knowledge-sharing, • Collaborate with cross-functional teams including product, design, and infrastructure, • Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: • Strong backend engineering experience, especially in Java and Spring, • Deep understanding of distributed systems and microservices, • Hands-on experience with AWS, Kubernetes, Docker, and Terraform, • Familiarity with CI/CD pipelines and testing best practices, • Solid SQL and relational database skills, • Ownership mentality, with strong problem-solving skills and attention to detail, • Experience with Node.js or frontend technologies like React, • Familiarity with Grafana, TeamCity, or observability tooling, • Interest or experience in financial services, compliance, or digital banking If you're excited to work in a fast-paced environment where engineers lead innovation - we’d love to hear from you.

Job Description: • We’re looking for a hands-on Senior Software Developer / Technical Lead with strong expertise in Java and Spring frameworks to design, develop, and deliver end-to-end software solutions., • Operates effectively with minimal supervision, receiving general direction from team leads or senior developers., • Responsible for designing, developing, enhancing, debugging, supporting, maintaining, and testing complex software applications that support business units and related functions., • You’ll collaborate closely with Product Owners to understand business needs, translate them into technical solutions, and drive implementation with minimal supervision. Key Responsibilities: • Work with Product Owners to understand requirements and design efficient technical solutions., • Develop, enhance, debug, and maintain Java/Spring-based web applications., • Create and integrate RESTful APIs using XML/JSON formats., • Write and optimize SQL/PLSQL queries for backend systems., • Ensure high-quality code through testing, performance tuning, and troubleshooting., • Collaborate with Agile teams and contribute to continuous improvement and DevOps practices., • Deploy and support applications on WebSphere, Apache, or Tomcat servers. Required Skills: • 9+ years of hands-on experience with Java, Spring Boot, REST APIs, XML/JSON, and SQL/PLSQL., • Solid understanding of full-stack development with exposure to HTML, JavaScript., • Good knowledge of application servers (WebSphere, Apache, Tomcat)., • Strong analytical and problem-solving skills., • Experience working in Agile environments and familiarity with DevOps tools. Nice to Have: • Experience guiding junior team members or taking technical ownership of projects., • Knowledge of CI/CD pipelines and cloud environments. About Us:

Java Developer / Technical Lead London / WFH to £115k Are you a hands-on Java Developer with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. What's in it for you: • Salary to £115k + Bonus, • Pension, Private Medical Care, Life Assurance, • Option to buy or sell holiday days, • Wellness benefits and gym subsidy, • Childcare vouchers, • Enhanced paternity leave including shared parental pay and leave, • Employee led LGBTQ+, Women's, Black and Parents & Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture, • Plus a range of other perks Your role: As a Java Developer / Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location / WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City with an upbeat team environment, casual dress code and a range of facilities including roof terrace, restaurant and break out areas. About you: • You have strong technical and people leadership skills, • You have advanced experience of building cloud-native, distributed systems using Java and Spring Boot, • You have a strong knowledge of AWS including Amazon EKS, • You have experience with Kafka and event driven architectures, • You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders Apply now to find out more about this Java Developer / Technical Lead opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Fidessa Developer - Java/Spring - sought by investment bank based in London - Contract - Hybrid. Translate business requirements into technical solutions using Fidessa and Java.

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. Java - must have A Java Developer is a specialized programmer responsible for designing, developing, and maintaining Java-based applications. Their role spans the entire software development lifecycle, from conceptualization to deployment and maintenance. They collaborate with software engineers, web developers, and other team members to create scalable and efficient solutions. Key Responsibilities Java developers are tasked with various duties, including: • Designing, implementing, and maintaining Java-based applications that meet business objectives., • Writing clean, efficient, and testable code while adhering to best practices., • Analyzing user requirements to define system functionality and application objectives., • Debugging, testing, and resolving technical issues during development and production phases., • Developing technical designs and documentation to support application development., • Ensuring applications are optimized for performance, scalability, and security. To excel as a Java Developer, one must possess a mix of technical and soft skills: • Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE., • Strong understanding of Object-Oriented Programming (OOP) principles and design patterns., • Familiarity with RESTful APIs, JDBC, and MVC architecture., • Experience with build tools like Maven or Gradle and version control systems like Git.

Software Engineer (Full Stack Developer, DV Eligible) Location: London, UK (Hybrid – remote and client site as required) Employment Type: Full-time, Permanent Salary: £45,000 – £65,000 (depending on experience) About the Opportunity Sanderson is partnering with an emerging workflow and AI orchestration consultancy working at the forefront of public-sector modernisation. This fast-growing company delivers secure, cloud-native software solutions that transform how government and national security organisations manage data, automate processes, and deliver critical services. They’re now looking for Full Stack Developers (from early-career engineers to experienced senior developers) to join their expanding delivery team. You’ll play a hands-on role in designing and building scalable, event-driven applications, contributing to architecture decisions, and shaping both the technical direction and culture of a rapidly scaling consultancy. If you’re a software engineer who loves to code, but also values collaboration, creativity, and the opportunity to help shape a company from the ground up - this is the role for you. Key Responsibilities • Design, develop, and maintain full-stack applications using Java Spring Boot and React, • Build microservice-based systems with a strong focus on scalability and resilience, • Work with modern technologies including Kubernetes, AWS, and Azure, • Contribute to workflow and orchestration solutions using Camunda and BPMN, • Design and optimise data structures and queries in PostgreSQL and MongoDB, • Collaborate closely with business consultants, product owners, and architects to translate complex requirements into elegant, secure software solutions, • Support the implementation of DevOps and CI/CD practices to improve automation and delivery, • Engage with clients and internal teams - applying strong communication and consulting skills to influence outcomes and share expertise, • Help grow the engineering culture: mentor others, contribute ideas, and lead by example in a collaborative, low-ego environment Essential Skills & Experience • Strong experience with Java (Spring Boot) and React, • Familiarity with containerisation and orchestration (Docker, Kubernetes), • Understanding of microservice architecture and domain-driven design, • Experience with SQL and NoSQL databases (PostgreSQL, MongoDB), • Knowledge of cloud platforms, ideally AWS and/or Azure, • Strong communication and collaboration skills - comfortable engaging with both technical and non-technical stakeholders, • Motivated, adaptable, and proactive mindset with an enthusiasm for working in a dynamic start-up environment Desirable Skills • Experience with Camunda and BPMN modelling, • Exposure to CI/CD pipelines, infrastructure-as-code, and DevOps automation, • Experience working in or delivering to public-sector or secure environments, • Understanding of agentic AI, workflow automation, or process optimisation, • Existing SC or DV clearance (or eligible to undergo vetting) Security Clearance Requirements Due to the nature of the work, candidates must be eligible for national security clearance (DV). To meet this requirement, applicants must: • Be sole British citizens (dual nationality not permitted), • Have not spent more than 30 consecutive days outside the UK in the past 10 years, • Have no criminal record, • Have no significant financial irregularities (e.g. bankruptcy or unresolved debts) Unfortunately, candidates who do not meet these criteria cannot be considered for this position. Why You’ll Love Working Here • Skin in the game: Employee option scheme giving you a real stake in the company you’re helping build, • Flexibility that’s real: Design your working pattern around life - and client needs when they arise, • Outputs over optics: Focus on results, not time online, • Work shoulder-to-shoulder with founders: Learn from experienced practitioners in a nurturing, hands-on environment, • You decide: Shape the culture, services, and ways of working as the company grows, • Autonomy by default: Own problems end-to-end, make decisions, and ship meaningful work, • Meaningful missions: Tackle high-impact public-sector challenges that improve services millions rely on, • Human > corporate: Sociable, low-ego, dynamic environment without big-firm bureaucracy, • Professional development: Sponsored Camunda certification and ongoing training to support your growth

Position: Full Stack Java Developer Employment Type: Contract Start: ASAP (November/December 2025) Duration: 6 Months (with expected extension) Location: London, UK (Hybrid) Language(s): English Focus on SAP is a specialist SAP and ERP Recruitment organisation offering both permanent and contract staffing solutions on a global scale. Client – Partnered with a global leader in digital transformation and IT services, working with some of the world’s biggest brands. Their mission is not only to deliver cutting-edge technology but also to empower organisations to create meaningful impact for the people and communities they serve. For you, this means working on challenging projects that demand innovation, collaboration, and thought leadership. Role – We are seeking an experienced Full Stack Java Developer to join a dynamic financial services project. You will play a key role in designing, building, and maintaining both the front-end and back-end components of high-performing web applications using Java, Spring Boot, and modern front-end frameworks. This is a great opportunity to work on large-scale, cloud-hosted systems that require performance, scalability, and innovation. Key Responsibilities: • Front-End Development, • Develop responsive, interactive user interfaces using HTML5, CSS3, and JavaScript., • Build modern UI components using React, Angular, or Vue.js., • Back-End Development, • Develop and maintain RESTful APIs and microservices using Java 11+ and Spring Boot., • Design and implement robust business logic and integrations., • Database Management, • Work with relational databases such as Oracle, MySQL, or PostgreSQL., • Experience with NoSQL databases like MongoDB or Cassandra., • DevOps & Cloud, • Support CI/CD pipelines using Jenkins, Docker, and Kubernetes., • Deploy and manage applications on AWS, Azure, or GCP., • Collaboration & Version Control, • Work in Agile environments with cross-functional teams., • Strong experience with Java, Spring Boot, Hibernate, and REST APIs., • Solid understanding of microservices architecture., • Knowledge of frontend frameworks (React / Angular)., • Familiarity with CI/CD pipelines, Docker, and Kubernetes., • Strong understanding of application security and performance optimisation., • Experience with JUnit, Mockito, or other testing frameworks. Applicants must be a UK resident and holds a valid right to work status.

Java Backend Engineer / Senior Java Developer. F680; Senior Java Engineer (Kafka, Spring Boot, Microservices). We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka.

Skillset - Strong Java/Spring full stack developer, XML/JSON, REST, SQL/PL SQL * Secondary skills – Agile, DevOps tools, HTML/Javascript, Good Analytical and Trouble shooting skills. Java Full stack development expertise handling Web Application. Works well under minimal supervision,

Please find the Job Description:- Role: Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:6+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing and designing software solutions, ensuring adherence to best practices and coding standards, and collaborating with product managers and other stakeholders to deliver high-quality products for the financial services industry. Key responsibilities include coding, debugging, and maintaining applications, conducting code reviews, troubleshooting complex technical issues, and driving innovation with new technologies. Key Responsibilities: • Team Leadership: Lead, mentor, and guide a team of Java developers in the development lifecycle. • Project Management: Oversee Java development projects from conception to completion, ensuring alignment with project requirements and timelines. • Technical Expertise: Design, develop, test, debug, implement, and maintain software applications using core Java technologies. • Quality Assurance: Ensure high-quality code through code reviews, adherence to coding standards, and implementation of best practices. • Collaboration: Work closely with product managers, stakeholders, and other technical and business groups to define and deliver solutions. • Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering, or a related field., • Experience: Proven extensive experience as a Java developer, often with a minimum of 5 years in Java programming., • Leadership Skills: Demonstrated leadership and team management experience., • Technical Skills: Proficiency in Java and its related frameworks (e.g., Spring Boot, Maven, Gradle), knowledge of web services, and understanding of database technologies like SQL/Oracle are often required., • Soft Skills: Excellent communication, problem-solving, analytical, and interpersonal skills are essential for collaborating with diverse teams and stakeholders., • Industry Knowledge: Understanding of the financial services industry and its specific systems is a significant advantage.

Rayo, part of the UBDS group, is seeking a Full-Stack Developer to contribute to the development and support of cloud-native applications deployed on Amazon Web Services (AWS).The successful candidate will work across the full software development lifecycle, combining solid Java/Spring Boot back-end

Interface with Java Spring Boot-backed microservices, ensuring seamless communication between front-end and backend services in a container-based architecture. Senior Front End / Lead Developer. We are seeking a highly skilled Frontend Senior / Lead Developer to join our dynamic team.

Work Mode: Hybrid (2–3 days a week onsite).Office Location: Bishopsgate, London.We are seeking a highly experienced Senior Developer with strong hands‑on expertise in Java, J2EE, Spring Boot, React JS, Kafka, and MySQL.The ideal candidate will be a Java Full Stack Developer responsible for solu

Fidessa Developer - Java/Spring - sought by investment bank based in London - Contract - Hybrid.Develop and customise the Fidessa cash equities order management systems for US and Canadian markets.Translate business requirements into technical solutions using Fidessa and Java.Collaborate with global

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Design and develop live casino games using Java, Kotlin, Scala and the Spring framework, ensuring high performance and quality standards.Create scalable and maintainable microservices architecture.As a Senior Java Developer at Eeze you will play a crucial role in shaping the development of our live

Serious commercial exposure to modern Java including Spring MVC and Spring.MVC frameworks like AngularJS and EmberJS.Continuous integration experience would be a plus.This Java / Hybris Developer (up to £50K).Quant Capital is urgently looking for a Java / Hybris Developer to join our high profile c

The successful Java developer can be paid up to £85k, private medical cover, life insurance, 25 days leave plus bank holidays, training budget and mental health/wellbeing benefits available too. Develop and enhance core services built in Java (Spring Boot). Backend: Java (Spring Boot), Ruby on Rail