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Graduate or Junior level Full-Stack Developer. As a graduate or junior developer, you will:. JavaScript / Python (FastAPI or similar), PostgreSQL.

Job Type: Contract (until end of March 2026), Hybrid (2 days a week in office).We are seeking an experienced Full Stack Developer to join our team.The successful candidate will have a proven track record in both front-end and back-end development, with strong skills in Java, Python, and API developm

Who We Are? ITC Infotech is a leading global technology services and solutions provider, led by Business and Technology Consulting. ITC Infotech provides business-friendly solutions to help clients succeed and be future-ready, by seamlessly bringing together digital expertise, strong industry specific alliances and the unique ability to leverage deep domain expertise from ITC Group businesses. The company provides technology solutions and services to enterprises across industries such as Banking & Financial Services, Healthcare, Manufacturing, Consumer Goods, Travel and Hospitality, through a combination of traditional and newer business models, as a long-term sustainable partner. What we are looking for? We are seeking a talented and experienced Full Stack Developer to join our dynamic team. The ideal candidate should have expertise in front-end development using React and Next.js, as well as proficiency in back-end development with Spring Boot, GraphQL, and Velocity scripts. Additionally, hands-on experience with AWS and continuous integration using Jenkins is crucial for success in this role. Key Responsibilities: Front-End Development: Develop and maintain responsive and user-friendly web applications using React and Next.js. Collaborate with UI/UX designers to implement design specifications and ensure a seamless user experience. Back-End Development: Design, implement, and maintain server-side components using Spring Boot for efficient and scalable solutions. Implement GraphQL for optimized API interactions and data fetching. Database Integration: Integrate databases and ensure data security and integrity. Optimize database queries and performance to enhance overall application efficiency. API Development: • Develop and maintain RESTful APIs for seamless communication between the front-end and back-end systems., • Implement GraphQL APIs for enhanced data querying capabilities. Velocity Scripts: • Utilize Velocity scripts to enhance server-side rendering and dynamic content generation. Cloud Services: • Deploy and manage applications on AWS, utilizing services such as EC2, S3, Lambda, and more., • Implement best practices for security and scalability in cloud environments., • Continuous Integration/Continuous Deployment (CI/CD):, • Set up and maintain CI/CD pipelines using Jenkins for automated testing and deployment., • Ensure code quality and perform regular code reviews. Collaboration and Communication: • Collaborate with cross-functional teams, including UI/UX designers, product managers, and QA engineers., • Communicate effectively with team members and stakeholders to gather requirements and provide updates on project status. Qualifications: • Bachelor’s degree in computer science, Software Engineering, or a related field., • Proven experience as a Full Stack Developer with a focus on React, Next.js, Spring Boot, and GraphQL., • Strong proficiency in front-end and back-end technologies., • Experience with Velocity scripts and API development., • Familiarity with AWS services and cloud architecture., • Hands-on experience with Jenkins and CI/CD pipelines., • Strong problem-solving skills and attention to detail. Preferred Skills: • Familiarity with containerization technologies such as Docker and orchestration with Kubernetes., • Knowledge of agile development methodologies., • Experience with performance optimization and troubleshooting. Our X-Factor • Work ethic: You are a consummate professional., • Aptitude: You have an innate capacity to transition from project to project without skipping a beat., • Communication: You have excellent written and verbal communication skills for coordination across projects and teams., • Impact: You are a critical thinker with an emphasis on creativity and innovation., • Passion: You have the drive to succeed paired with a continuous hunger to learn., • Leadership: You are trusted, empathetic, accountable, and empower others around you.

London Area (Fully Remote with 1x Monthly in-person meeting + weekly optional co-working in London). We are looking for an ambitious developer ready to step into a leadership and architectural role. While we take on diverse projects across various stacks, your immediate priority will be owning and a

Lead full stack development across greenfield products. Senior Full Stack Engineer / Developer (TypeScript Elixir AWS) London / Hybrid Up to £100k + Equity. Join a fast-growing energy trading data scale-up as a Senior Full Stack Engineer, working on complex greenfield systems that demand scalabilit

If you’re a senior Ruby on Rails full stack developer looking for deep product ownership, technical challenge, and real-world impact—this is your chance to join a high-growth, product-led team making trust in global commerce possible. Growing organically year-on-year at an impressive rate, they�

TypeScript Developer / Engineer (Full Stack API React) London / WFH to £60k. TypeScript Developer / Engineer (Full Stack API React) opportunity. Are you a bright, ambitious technologist who enjoys working with a range of programming languages across the full tech stack?.

We are seeking a technically skilled and pragmatic Full Stack Developer to architect and implement the next major phase of our internal operations system. Ensure the architecture is clean, maintainable and aligned with the required tech stack. Produce clear documentation and a full handover so the i

Full-Stack Developer - Finance Technology (Java, Spark, Cloud) - Global Investment Bank.We’re hiring a Full-Stack Developer to join a high-impact Finance / Regulatory Technology team within a leading global investment bank working on business-critical regulatory reporting platforms.You’ll help m

Contribute to frontend design and user experience, especially in financial UI. Solid understanding of frontend design: usability, accessibility, polished UI. React Developer to join their team on a full-time permanent basis.

Full-stack Java/Clojure developer.

Full Stack Developer (SC Cleared) Public Sector Consultancy Location: UK (Hybrid/Remote options depending on project) Security Clearance: Active SC Clearance (or higher) required Salary: £45,000 – £75,000 (dependent on experience) +18% bonus Level: Mid to Senior We are working with a fast-growing Data-Focused consultancy delivering impactful digital solutions across the public sector. They work on meaningful, long and short-term programmes supporting government and public bodies, with a strong focus on modern engineering practices and real-world outcomes. Due to continued project demand, we are looking for SC-cleared Full Stack Developers to join. The Role You will work as part of multidisciplinary agile teams, building and maintaining secure, scalable applications for public sector clients. This is a hands-on role offering exposure to modern architectures, cloud environments, and complex data-driven systems. Key Responsibilities • Design, develop and maintain full stack applications in secure environments, • Contribute across the software development lifecycle, from requirements through to deployment, • Collaborate closely with product owners, designers, and other engineers, • Ensure solutions meet public sector security, performance, and accessibility standards, • Support continuous improvement through code reviews and best practice Required Experience • Active SC Clearance (or eligibility at minimum), • Proven full stack development experience within the UK public sector, • Cloud experience (AWS, Azure, or GCP), • Strong experience with Java or Python, • Front-end experience using modern JavaScript frameworks (e.g. React, Angular, Vue), • Familiarity with RESTful APIs, databases, and version control, • Experience working in agile delivery environments Desirable • DevOps or CI/CD exposure, • Experience working in a consultancy or client-facing environment What’s On Offer • Meaningful bonus, • Personal careers coach, • Opportunity to work on high-impact public sector programmes, • Supportive consultancy environment with clear progression, • Exposure to modern technologies and complex, meaningful projects If you are an SC Cleared Full Stack Developer looking to work on challenging public sector projects within a collaborative consultancy environment, we’d be keen to hear from you.

Full Stack Post Trade Developer – Elite Systematic Hedge Fund – C#, Angular/React, SQL – London – Multiple Headcount – Market Leading Compensation One of the world’s most forward-thinking systematic hedge funds is expanding its Post-Trade Technology group and is hiring a Post-Trade Developer to build the external-facing systems used by their global investors and stakeholders. This team sits at the heart of the firm’s post-trade operations and works directly with Middle Office, Fund Accounting, Management Accounting, and Compliance. With a brand-new growth mandate in place, they are doubling the size of the team and bringing on multiple engineers. If you enjoy full-stack development, clean engineering, and building polished user-facing tools for a highly sophisticated financial environment, this is a standout opportunity. The Role As a Client Solutions Developer, you will help build and maintain: • Investor portals and external reporting platforms (think winton.com-style portals), • Client-facing dashboards, visualisations, and bespoke reporting tools, • High-quality UI components and micro-apps used by investors, operations, and senior stakeholders You’ll work closely with analysts, PMs, and developers in a lean, technically strong team where projects are shared and impact is visible. Tech Stack • Frontend: Angular / React, • Backend: C#, • Database: SQL Server What They’re Looking For • Strong full-stack engineer (C#, SQL + Angular/React), • Experience building client-facing or external web applications, • Ability to collaborate closely with business teams, • Finance experience is a plus, but not required, • Academic backgrounds in Comp Sci, Physics, Engineering, or similar are welcomed Why This Role Is Unique • Build front-facing tools used by global investors, • Work across middle office, accounting, compliance, and tech, • Join a highly intelligent team with strong academic backgrounds, • Real ownership over products in a low-bureaucracy environment, • Multiple headcount → real growth, not backfilling If you want a full-stack role with real ownership, smart colleagues, and a modern technical environment, this is one of the top opportunities in London right now.

Build Circle is a progressive technology consultancy partnering with scale-ups, SMEs and enterprise organisations to enhance business value, speed and quality. As product-led consultants, we draw on real-world experience in scaling hypergrowth companies such as Just Eat and Moonpig. We provide support by integrating principal-level staff to improve capability and culture, or by standing up whole teams to tackle complex challenges swiftly. We also offer strategic guidance on architectural roadmaps, talent, hiring and scaling. Our ethos rests on two core beliefs: 1. Engineering should focus primarily on delivering value., 2. We believe great people create great culture and great products. Engineering excellence extends well beyond technical mastery - it is problem-focused, pragmatic, accountable and humble here at Build Circle. Striking a balance between enhancements and swift delivery, we prioritise "getting things done" above all and take responsibility for owning delivery improvements as we go. Flexibility is key to creating successful partnerships. We take a problem-first approach and work with organisations to tailor a strategy and partnership that will deliver the best outcome to their goals. You should apply if • You have extensive engineering experience working in fast-growing tech companies., • You are well-versed in Agile/Lean principles., • You are confident in developing, releasing, and maintaining web applications in a fast-paced, iterative environment., • You're comfortable working full-stack, even if you are stronger on the back end or front end., • You have experience writing microservices on top of container-based architectures (e.g., K8s, Docker)., • You have native experience with AWS, Azure, or similar platforms, e.g., Google Cloud. The Build Circle Community Build Circle is proud of our trusted community of engineers joined by some of the most talented tech professionals currently working in the industry across different sectors and verticals. We are continuously looking to add great talent to this community who would then become eligible for both permanent positions within Build Circle as we continue to grow and scale, and project-based work if that’s your preference. Build Circle Projects Build Circle is engaged with some of the best-known tech organisations and brands out there - check out some of our case studies for previous projects.We have several ongoing engagements with specific objectives across a range of organisations and some truly exciting prospects on the horizon that would enable the successful applicant for this position to grow, work with, and learn from the very best. A non-exclusive list of some of the tooling and technology we are currently using: • .NET Core 3.1, Node.js, Python, Java/Kotlin, • Kubernetes, Terraform, infrastructure-as-code, • Typescript, React, Node, GraphQL, Apollo, • AWS: Lambda, ECS, CloudFront, API Gateway, DynamoDB, Aurora, S3, SQS, SNS, Kinesis, • Azure, Functions, • Prometheus, Grafana, Cloudwatch for monitoring, • "Elasticsearch, Logstash, Kibana" for logging, • Azure DevOps, Gitlab CI, Terraform, GitHub Our principles Our core belief is that great culture and great products start with great people. That makes hiring the most important thing we do. We use our engineering principles to hire top-tier talent. Problem-centric approach: Keeping the business challenge front and centre to deliver the right product, fast, and reduce waste. DevOps culture: Continuously improving the developer experience. Ego-free environment: The best ideas win, not the loudest voices. Everyone's brilliance matters. Deliver test-first in short cycles: Fast feedback means reliable code. We iterate quickly to deliver faster. Ownership: You Build It. You Run It. We’re all about self-sufficient and responsible engineering. Agile excellence: Stability, reliability, agility and scalability are central to our approach. Raising the bar for engineering: Engineering excellence and exceeding industry standards is always the goal. To support you to do your best work we also offer you the latest tech, generous leave and flexible working options. As a Senior we would expect you to; • Mentor Engineers, • Keep the problem front and centre, and champion our principles, • Contribute to the evolving standards across the Engineering discipline, • Work closely with stakeholders, • Have a keen interest in the business impact you are delivering, • Although we are hiring for Seniors, we would love to hear from engineers and tech talent at all levels who identify with our principles. Build Circle will not be accepting applicants via recruitment agencies at this time.

Title: C# Developer Rate: Up to £750/day Location: London (Hybrid) The Opportunity: I am working with a leading global investment bank seeking a C# Developer to join their high-performing FO Trading team. This is an exceptional opportunity to work alongside experienced technologists and investment professionals building mission-critical systems that drive trading, research, and risk management operations. What You Bring (Required): • Deep commercial experience engineering C# / .NET solutions within mission-critical financial services platforms, • Hands-on delivery of enterprise risk platforms (Market, Credit, Counterparty Risk, XVA) with solid understanding of rates, FX, equities, and derivatives, • Experience with distributed and message-driven architectures, including ActiveMQ, plus full-stack exposure with Angular, • High engineering standards, applying SOLID principles, proven design patterns, CI/CD, and building maintainable, cloud-ready services (OpenShift desirable), • Demonstrated ability to partner effectively with quantitative researchers, risk teams, and front-office stakeholders to deliver production-grade solutions Who You Are: • You thrive in fast-paced investment banking environments, • Designs and owns mission-critical systems where performance and correctness matter, • Makes strong architectural decisions under delivery pressure, • Trusted technical partner to front office, risk, and quants Apply now or reach out directly: for more details

I am partnered with a leading developer and provider of full-stack photonic quantum computing systems. This company focuses on innovative approaches to quantum computing, high performance, and data centre-standard systems for machine learning and generative AI. You will have the opportunity to work in multidisciplinary teams of quantum scientists’, engineers, and mathematicians who are developing hardware and software within quantum- classical systems. We're looking for an experience machine learning engineer, who will thrive in collaborative dynamic environments where learning is continuous and every contribution drives progress towards the next generation of computing. Having knowledge or interest within quantum computing would be desirable. Your Responsibilities: • You will research, implement and benchmark new machine learning algorithms to continuously improve your workflows., • You will focus on generative models (flow models, diffusion and GANs), alongside neural network architectures that make use of non-classical feature sets., • You'll be working in collaboration with clients and partners mapping relevant problems within hardware and deliver projects demonstrating how your technology can solve these problems., • Country to scientific leadership by publishing your research and working with legal teams to protect your inventions., • You will contribute to the user facing software stack by adding and improving new algorithm applications and examples. Technical Expertise: • Master's or PhD in a relevant field (physics, computer science...), • Expertise in machine learning, with a strong understanding of flow matching, diffusion and/ or GANs, • Machine learning orientated programmed skills (Pytorch, Python…), • Experience in developing and benchmarking new machine learning models, • Working with multi-GPU models, • Industrial experience in machine learning applications for either chemistry or biology settings, • Experience working in front of and with customers, • Previous experience working in start-up environments Following your application, Amelia Pudney will discuss the opportunity with you in detail. She will happily answer any queries surrounding the opportunity and the potential for career growth. This position is highly popular and has possibility to close prematurely; apply as soon as possible to avoid disappointment. Please select 'apply', alternatively email with any further information.

Java Developer / Software Engineer (AWS React Full Stack) London / WFH to £80k Are you a technologist Java Developer looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with a hugely successful track record. As a Java Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form the core of the platform. You'll collaborate closely with the Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI. Location / WFH: You can work from home most of the time, meeting up with colleagues in London; as the company grows there will likely be some in office requirements but with lots of flexibility. About you: • You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface / front end development using React or Tailwind CSS, • You have a strong knowledge of modern software engineering best practices including cloud native applications, microservices and CI/CD, • You are an advocate of AI and keen to explore its capabilities, • You are commercially aware and can see the "big picture", • You're a skilled problem solver, able to make trade-offs and get things done, • You're collaborative and pragmatic with great communication skills, • Ideally you will have a good understanding of Financial Services / Open Banking What's in it for you: As a Java Developer / Software Engineer you will receive: • Up to £80k, • Significant stock options Apply now to find out more about this Java Developer / Software Engineer (AWS React Full Stack) 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.

About PhixFlow PhixFlow is an established (since 2004), highly respected company delivering a unique low-code platform for complex data integration and business process automation. The customers we partner with include major Telcos, Utilities, and Financial Services, to solve their most intricate business challenges. Despite our stability and history, we operate with the agility and technical freedom of a start-up. The Challenge: Innovating Platform Reach, UX, and AI We are looking for a highly capable Full-Stack Engineer who will serve as a core innovator driving the evolution of our PhixFlow platform across three critical areas: 1. Enterprise Integration: Designing and implementing features for seamless data exchange with mission-critical systems like SAP and Salesforce., 2. Intuitive UX/DX (Developer Experience): Extending the platform's reach by designing and building highly intuitive user experiences for less technical business users., 3. AI Integration: Researching and developing new features that integrate AI capabilities into the platform to enhance automation and decision-making. Your ability to learn quickly and reason through complex systems is critical, ensuring we balance innovation with performance, security, and usability. Core Technical Skills Requested ● Proven experience working effectively within large, enterprise-scale codebases. ● Solid proficiency in Java (deep server-side development and platform architecture familiarity). ● Strong experience with JavaScript, TypeScript and React (front-end development, with an interest in UX/UI principles). ● Expertise in SQL and designing/optimising relational database schemas. ● We seek deep understanding of fundamental technical skills, including clean code principles and complex system design. Culture, Compensation & Benefits We understand that outstanding engineers require true work-life balance and flexibility. We are a remote-first company focused entirely on output and quality, not hours logged. We will consider candidates seeking flexible hours, reduced hours, or a compressed working pattern to fit around personal or family commitments. ● Working Pattern: Flexibility is Key: Available as Full-Time (5 days) or equivalent to a 4-day week (Salary adjusted pro-rata). ● Salary Range (Full-Time): £55,000 to £62,000 per annum. ● Work Model: Remote-First. ● Development: 5 dedicated training days per year for professional growth. ● Time Off: 25 days plus bank holidays annual holiday, increasing for long service. Enhanced Maternity, Paternity and Adoption benefits. ● Health & Finance: Company Pension contribution and private health insurance, including Dental and Optical and option to add family members. ● Well-being: Active Wellbeing Committee and Gym membership contribution. ● Team Connection: Weekly virtual coffee chats, regular social events, including an annual Company Christmas Meal. ● In-Person: 4 team meetings per year in Cambridge, UK. Reasonable travel and accommodation costs can be fully expensed for those outside the Cambridge area. ● Equipment: All necessary equipment provided including Laptops, Screens, Chair and Sit-Stand desk. Application & Interview Process We aim for a streamlined and efficient hiring experience that respects your time. 2. Online Assessment: Successful applicants will be invited to complete a short intellectual challenge (logic test) designed to evaluate reasoning and problem-solving aptitude., 3. Interviews: We conduct up to two virtual interviews focusing on technical depth, cultural fit, and your approach to complex challenges. Determining Salary within the Range Salary will be determined based on the successful candidate's proven experience, demonstrated technical expertise, and agreed working pattern. Offers will typically be structured as follows for Full-Time (5-day) work: ● £55,000 - £57,000: For candidates who meet core skills and demonstrate strong learning aptitude, but require moderate ramp-up time on the platform. ● £58,000 - £62,000: For highly experienced candidates who exceed the minimum requirements, have significant and demonstrated expertise in complex integration, and can immediately contribute to the innovation and architectural evolution of the PhixFlow platform. Technology Keywords & Interests Experience with, or a strong interest in, the following or similar technologies and concepts is highly valuable: ● Backend: Java, Spring, Hibernate, multi-threading/concurrency, Quarkus/Micronaut. ● Frontend: JavaScript, TypeScript, React, D3.js, SVG, CSS. ● Database: SQL (SQL Server, MySQL, Oracle), Data Modelling. ● Infrastructure: Cloud Platforms (Azure, AWS), Git. ● Advanced Topics: AI/LLM (Large Language Models), Small Language Models, Fine Tuning, Security, Design Patterns.

C# Developer / Backend Software Engineer C# .Net AWS (Junior - Mid) London to £80k Are you a bright, ambitious C# Developer who enjoys collaborating and working on complex systems with cutting edge technology? You could be progressing your career at a highly profitable, systematic Hedge Fund that invests in sports betting markets whilst enjoying a range of perks and benefits including hybrid working and a sociable team environment. As a C# Developer you'll join a cross functional Agile product team responsible for high-value business critical betting execution systems. You'll be building systems to manage large datasets which can process updates in real-time with high throughput and low latency; these systems are released with high frequency with technology choices that are continuously evolving. There's a focus on backend development with C# .Net and Kubernetes however you will work across the full stack, using TypeScript and React on the client side. You'll take ownership of projects and collaborate with a team of highly skilled engineers as well as business stakeholders, continually learning, assessing new technologies and making recommendations within a flat structure. Location / WFH: You'll be based in fantastic offices in a vibrant area of London with in-house gym and steam room, games room with pool tables and dart boards, library and free high quality catering (breakfast, lunch, dinner) from the onsite chef with flexibility to work from home once a week week (please note that during probation you will be required onsite five days a week). About you: • You're degree educated in a STEM discipline, Computer Science, Mathematics or Physics preferred, 2.1 or above from a top tier university (e.g. Russel Group, Oxbridge, World top 100), • You have C# serverside development skills, including .Net Core and multi-threading, • You have a good knowledge of AWS and Kubernetes, • You have a good understanding of CQRS and Event Driven systems, • The tech stack also includes JavaScript / TypeScript and React for client side applications; experience with any of these would be beneficial but you can pick them up on the job, • You're commercially aware and keen to understand the business impact of what you do, • You have excellent communication, collaboration and problem solving skills, • Ideally you will have an interest in sports with an understanding of betting What's in it for you: • Competitive salary, to £80k, • Pension, • Private medical care and wellness days, • Training and conference budget to support your personal development Apply now to find out more about this C# Developer / Backend Software Engineer (C# .Net AWS Junior - Mid) 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.

Role Outline Do you want to help build the future of humanoid robots? We are looking for skilled Senior Full Stack Software Developers to join our software development team. You will work closely with cross-functional teams to develop, maintain, and enhance both our cloud based web apps (including front-end and back-end components), as well as local software functionality executing on-robot. In this role, you will leverage your expertise to build scalable and user-friendly solutions that align with business goals. Creativity, problem-solving, and a passion for delivering high-quality code are key elements of this role. We’re seeking developers with mid to senior level of experience who will rapidly integrate into our team and deliver valuable contributions. Our internal motto is “Be Wow”, our robots are wow and we seek engineers who embody this in their work by building intuitive, effective systems that delight users and drive success. Main Responsibilities • Develop and maintain full-stack web applications, • Develop and maintain on-robot software systems, • Collaborate with cross-functional teams, • Debug, maintain and extend the codebase Challenges • Ensuring our cloud platform provides a smooth user experience while handling complex business logic., • Ensuring robots function reliably and repeatably in their interaction with our cloud services and their local execution of associated behaviours., • Working within an existing large and complex codebase., • Working in a fast-paced environment with evolving project scopes., • Achieving functional goals with the constraints of complex real-life hardware. Opportunities • Working at the forefront of the rapidly growing field of humanoid robotics., • Working in a creative environment with highly skilled and committed colleagues., • Work across a broad technical field with ample variety in tasks and opportunity to deepen your knowledge and experience in many areas., • Working on a proven, commercially successful product consistently shipping units., • Working on a modern Linux-based stack prioritizing performance and developer ergonomics over industry conventions., • See the fruit of your labour! Interact with customers using our robots and see the wonder and joy of people reacting to robot behaviors you created., • Gain guidance from experienced developers, designers, long-term customers and a mature yet fast-moving codebase. Qualifications, Knowledge, Key Skills and Experience Essential: • Experience with TypeScript and React for building dynamic, responsive front-end applications., • Back-end development experience in Python, particularly with frameworks like Django or Flask, or equivalent experience in other back-end languages like Node.js with Express., • Familiarity with Linux system development, • Familiarity with designing and consuming RESTful APIs., • Experience with Git and collaborative version control practices., • Experience in writing unit-tested, maintainable, and scalable code., • Understanding of CI/CD pipelines., • Experience building products with Large Language Models (LLMs) and integrating them into production environments., • Experience developing in C++ and/or Rust, • Experience in CI/CD pipelines to automate testing, deployment, and release management., • Knowledge of cloud platforms (AWS, Azure, etc.)., • Experience with Docker, Kubernetes and containerized application deployment., • Experience working on real time systems such as video games or IoT installations., • Exposure to embedded systems or hardware integration, with a focus on optimizing interactions between software and physical components. About Engineered Arts Engineered Arts is the leading manufacturer of full-size humanoid robots used for entertainment, education and communication. With 20 years of hardware and software development, our robots have been sold in over 30 countries worldwide with customers such as NASA, PwC, Meta and many more. Our Ameca robot is well known as ‘the face of AI’ and a social media viral success, taking advantage of the generative AI craze. Along with our ultra-realistic Mesmer range of animated figures our robots continue to surprise and excite visitors at museums, theme parks, visitor attractions and trade shows as well as aid leading universities with AI and robotics research. Our robots are poised to break into the future mega-expansion service robot segment, with applications such as front of house, receptions, check-in desks, information points and PoS. We are also exploring how our humanoid robot technology can disrupt other robotics sectors by expanding their applications into areas such as hospitality, front desk and healthcare industries. We are a team of dedicated engineers and creatives striving to develop the very best experiences for our customers. Our internal motto is ‘Be Wow’, everything we do is fun, entertaining or surprising to encounter. We always push the boundaries of what is possible in humanoid robotics, researching and developing new systems and techniques to further their appeal. We explore and challenge the human perception of robots as well as the fear and discomfort and the excitement and joy life-like mechanical humanoids present. “Diversity & Inclusion at Engineered Arts At Engineered Arts, innovation is at the core of everything we do — and we believe true innovation only happens when diverse minds come together. We are committed to building a workplace where people of all backgrounds, identities, and perspectives feel welcome, supported, and empowered to contribute. Whether you’re an engineer, developer, or creative thinker, we value what makes you unique. We actively promote inclusion across our hiring, design, and development practices, and we’re always looking for new ways to reflect the world around us — in our team, our robots, and our ideas. Because building the future means including everyone in it.” We are committed to equal opportunity in employment and comply with all applicable non-discrimination and equal employment laws in the regions where we operate.

Location: London, UK Industry: Investment Banking We’re looking for an experienced Backend Developer to join a leading investment bank and help drive innovation that empowers people and businesses across Asia, Africa, and the Middle East. This role is part of the Blade function, delivering strategic initiatives that make a real impact. Prior banking experience is highly desirable. The Key Responsibilities As a senior developer, you’ll be driving our platform forwards and delivering quality solutions to business-critical customer requirements. Based in London, you will collaborate in a dynamic global team with fellow technologists, business analysts, project managers and business stakeholders across multiple locations. Key Attributes • An excellent Java developer with good software design principles and the ability to write robust code and accompanying test suites, • Ability to write efficient, clear code and be able to articulate what has been implemented and why, • Self-starter who can drive/facilitate requirements and development effort, • Take ownership and responsibility for the full development lifecycle, • Experience working in an agile development environment, • A team player, capable of engaging with other teams, • Experience in the end-to-end design, development and support of financial markets systems, • Experience with real-time (event-driven) architectures, • Being a full-stack web developer is a plus Technical skills: • 5+ years hands on development with investment banking IT experience, • Core Java (essential), Concurrency, Spring, • RX Java is a plus, • Experience in micro-services and container technologies (preferably Docker) is a plus, • Familiarity with CI/CD and DevOps, • Experience with distributed data stores a plus, • Functional programming experience a plus Functional skills: • Financial Market domain knowledge, • Investment banking is a strong plus, • Derivatives knowledge is a plus, • e-trading technology experience is a plus Soft skills: • Fluent in English (speaking and writing), • Strong ownership and ability to deal with ambiguity, • Outstanding problem-solving skills, • Proactive, self-starter, autonomous, • Good team spirit Rate: GBP 600 - 650/day (negotiable) PAYE inside IR35 (Annual leave: 38 days including Bank Holidays + 3% Pension + 15% Employees NI)

🚀 Contract Role: Full-Stack Developer (Python & React) – EdTech Start-Up (Outside IR35) Client: Cutting-edge educational learning platform Engagement: Consultancy Duration: 6 months (strong potential extension) IR35: Outside Start: ASAP Location: Remote (UK/EU time zone overlap preferred) We’re looking for a Full-Stack Developer with 4–5 years’ commercial experience to join an exciting EdTech start-up through a consultancy engagement. This is a hands-on build role where you’ll work closely with Head of Tech helping to drive key product features while keeping exposure to the end client limited. 🔧 The Role This is a true full-stack position with work across both the Python backend and React frontend: • Initial focus on backend: building out core Python services, APIs, and platform logic., • Shifting to frontend: developing the React web application, • Contributing to architecture, best practices, and high-quality, maintainable code., • Working within a fast-paced start-up environment where autonomy is key. ⭐ About You We’re looking for someone who can hit the ground running: • 4–5 years’ experience as a full-stack experience, • Solid Python backend experience., • Strong React skills for web application development. -You’ve shipped real products. • Start-up experience strongly preferred; you’re comfortable working at speed., • Finance/fintech background is a bonus but not essential., • Proactive, independent, and comfortable working directly with a Head of Tech. 📅 Contract Details Outside IR35 6-month contract, with likely extension

Overview We are seeking an experienced Senior Java Developer to join our fast-growing consultancy team of 300+ professionals. This role blends advanced technical expertise with strong communication, stakeholder management, and leadership skills. You will work closely with clients to understand their needs, design high-quality solutions, and deliver exceptional technical outcomes. As a senior consultant, you will guide teams, contribute to architectural decisions, and ensure successful project delivery. Key Responsibilities Technical Delivery • Design, develop, and maintain Java-based applications using modern frameworks, best practices, and AI technologies., • Implement scalable architectures, RESTful services, microservices, and integration layers., • Produce clean, maintainable, and well-tested code., • Collaborate with clients to gather requirements, define scope, and translate business needs into technical solutions., • Present technical concepts clearly to non-technical stakeholders., • Build strong client relationships, ensuring satisfaction and trust., • Lead and mentor junior and mid-level developers., • Participate in project planning, estimation, and delivery oversight., • Facilitate code reviews and ensure adherence to quality standards., • Contribute to solution architecture and high-level design decisions., • Support agile processes, including sprint ceremonies., • 5+ years of Java development experience., • Strong expertise in Java 8+, Spring frameworks, JAX-RS, JAX-WS, Hibernate, JPA., • Experience with microservices and distributed systems., • Full-stack development experience., • Knowledge of REST APIs, Kafka/RabbitMQ, SQL/NoSQL., • Experience with CI/CD and cloud platforms (Azure or AWS)., • Excellent verbal and written communication., • Ability to explain technical topics to non-technical audiences., • Strong client-facing presence., • Strategic problem-solving mindset., • Adaptability, ownership, and teamwork., • Consultancy experience., • Docker/Kubernetes exposure., • Event-driven architecture knowledge., • Front-end experience (React, Angular, or similar)., • Relevant certifications.

JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, React, AWS | Disruptive Start-up, B2C | Rate c/ £500/day (Outside) | 6-months | UK remote or London Hybrid Opportunity: We’re supporting an innovative, fast-moving founding team. They’re building an innovative B2C platform with lots of partnerships already signed up! Very exciting opportunity to take a lot of responsibility and work in a small team with proven founders and engineers - on a disruptive and data-heavy B2C application. You’ll work closely with the founding team to build scalable, secure, and high-performance systems that deliver an exceptional user experience. What You’ll Be Doing as a JavaScript Developer, Contractor, Backend Engineering | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £500/day (Outside) | 6-months | London, Hybrid • Develop, maintain, and optimize robust backend services and APIs that power our mobile and web platforms, • Design and implement low-latency event processing pipelines, • Ensure backend infrastructure is reliable, scalable, and secure, • Enhance database efficiency and refine data storage strategies, • Maintain comprehensive multi-layered test coverage, • Collaborate closely with frontend and mobile teams to define and deliver API contracts, • Set up and manage effective monitoring, logging, and alerting systems, • Influence architectural decisions and help establish engineering best practices, • Conduct code reviews and provide mentorship to junior developers, • Explore and integrate new technologies to expand platform capabilities, • Work with product and design teams to convert requirements into scalable technical solutions, • Continuously refine development workflows and improve system performance What You’ll Need as a JavaScript Developer, Contractor, Backend Engineering | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £500/day (Outside) | 6-months | London, Hybrid • 6+ years commercial experience in Backend technologies, with majority focused on NodeJS., • Proven track record of start-up experience, working for cool innovative consumer b2c brands where you've taken ownership., • Confidence working on huge datasets and complex API work, • Great communication skills and attitude to get your hands dirty across the stack and business challenges., • Nice to have: Full stack experience, with TypeScript JavaScript Developer, Contractor, Backend Engineering | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £500/day (Outside) | 6-months | London, Hybrid • Location: Remote, • Type: Contract, full-time, • Rate: circa £500/day, • Start: ASAP

Senior Full Stack Engineer / Developer (TypeScript Elixir AWS) London / WFH to £100k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your career in a senior, hands-on Full Stack Engineer role at a successful and profitable energy trading market data scale-up. What's in it for you: • Competitive salary, to £100k + Significant Equity, • Hybrid working (3 days London office per week), • Vitality Healthcare, • Continuous career development and learning opportunities, • Influential role as part of a small, close knit team, • Complex and interesting work Your role: As a Senior Full Stack Engineer you will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability in mind, across the full development lifecycle from architecture and design through to implementation. There's a range of technology in the stack, you'll have a 50/50 split between backend and frontend development using TypeScript, Elixir, Elm and AWS amongst others, learning and picking new things up on the job in a collaborative, tech driven environment where you can get stuff done and see the results of your work. Location / WFH: You'll join the team in London three days a week in a hybrid work from home model. About you: You are degree educated in Computer Science or similar STEM discipline, having achieved a 2.1 or above from a Russel Group / Oxbridge or top 100 global university • You are an experienced software engineer with a strong knowledge of best practices and Computer Science fundamentals and experience of delivering complex, data centric software, • You have advanced analytical and problem solving skills, • You're comfortable taking ownership of projects and mentoring more junior team members, • You have strong TypeScript skills, combined with any backend programming language (e.g. Python, Java, C++, C#), • You're happy to work with the following tech stack (you don't need experience with all): Elixir, Ember, Elm, Phoenix, LiveView, Python, PostgreSQL, AWS, Docker, • You have an analytical mindset and enjoy problem solving, • You have experience of working in start-ups / SMEs and have good business acumen, • Ideally you will have a good understanding of financial markets Apply now to find out more about this Senior Full Stack Engineer / Developer (TypeScript Full Stack Elixir) 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.

London or Manchester (Hybrid) | £50,000 – £80,000 + Equity About us At the forefront of using investment portfolios as security for access to credit, Firenze is emerging as the category defining leader in what is known as “Lombard lending”. We already work with some of the UK’s leading wealth management firms to unlock access to what has historically only been available to UHNW clients of private banks. Backed by top tier investors, Firenze is now scaling the team to continue to ensure our credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer, you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust Java back-ends—while learning from experienced engineers and contributing to a modern, scalable architecture. This is a hands-on role with plenty of opportunity to develop your technical depth, gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems, you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship, learning, and engineering excellence. Key Responsibilities • Feature Delivery: Collaborate with senior engineers to deliver new features from design to production., • Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability., • Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management., • Data & Integration: Work with PostgreSQL, caching (Redis), and messaging (Kafka/SQS) — learning how to design resilient data flows., • Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery., • Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one., • Documentation & Developer Experience: Help create clear technical docs and reusable tooling that makes development smoother for everyone., • Cross-Functional Collaboration: Partner with product, design, and experienced engineers to break down work, estimate effectively, and deliver iteratively. Requirements • Experience: 3+ years of professional software engineering, including full-stack work on production systems (fintech or startup experience a plus)., • Java Proficiency: Hands-on experience building APIs/microservices in modern Java (Spring Boot or similar)., • TypeScript & Vue: Solid experience developing production-grade web apps with TypeScript and Vue/Nuxt., • Web Fundamentals: Good grasp of HTML/CSS, accessibility (WCAG), and secure web app design., • Databases & Messaging: Familiarity with PostgreSQL and at least one of Redis, Kafka, or SQS., • Testing Mindset: Comfortable writing and running tests; familiar with CI pipelines (GitHub Actions, GitLab CI)., • Cloud & Containers: Exposure to AWS or another cloud platform and Docker. (Kubernetes or ECS a plus.), • Growth Mindset: Curiosity to learn new technologies, seek feedback, and develop alongside experienced teammates. Bonus Skills • Interest in event-driven or distributed systems (Kafka, RabbitMQ, SQS)., • Exposure to DDD, CQRS, or hexagonal architectures., • Experience with observability tools (OpenTelemetry, Prometheus, Grafana)., • Familiarity with multi-tenant SaaS, RBAC, or performance tuning (JVM, SQL). Why Join Us? • Learn from experienced engineers: Work side-by-side with senior teammates who value teaching, pair programming, and open design discussions., • Accelerate your growth: Gain exposure to architecture, DevOps, security, and observability while contributing to production systems early on., • Impact: Shape a greenfield fintech platform with real business influence and visibility., • Collaboration: Join a supportive, high-performing team that values curiosity, innovation, and shared ownership., • Career Development: Clear progression opportunities as Firenze scales — move towards senior or specialist roles with mentorship and hands-on experience., • Competitive Salary (£50,000-£80,000) depending on experience, plus equity participation. You’ll be part of a hybrid team based in London or Manchester, combining the best of in-person collaboration with the flexibility of remote work. You’ll join a culture that values continuous learning, feedback, and building things the right way — not the fast way.

Contract Senior Full Stack Software Engineer : Up to £500 Outside IR35 : Monthly Hybrid London : 6 months (rolling) A digital consulting partner of ours are looking for a Contract Senior Full Stack Software Engineer to design, build, and maintain scalable, high-performance software systems for their end customer. As a Contract Senior Full Stack Software Engineer you will lead technical decision-making by reviewing designs, mentoring engineers, and driving best practices in code quality, architecture, and tooling. Key Skills: • Angular, Java, Node.js, • MuleSoft, • Cloud experience (AWS, Azure, GCP) Contract Details: • Up to £500 per day, Outside IR35, • 6 months (rolling), • Monthly Hybrid London This is an exciting opportunity for an experienced developer to apply their expertise in a fast-moving environment, shaping technologies that directly impact real time projects. Please note: Due to the high volume of applications, unfortunately, we may not be able to provide feedback to all applicants. Contract Senior Full Stack Software Engineer : Up to £500 Outside IR35 : Monthly Hybrid London : 6 months (rolling)

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Quant Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour, and a culture built around high impact and low ego. The successful candidate will work at the intersection of quantitative research, data engineering, and high-performance software development — with code that moves rapidly from prototype to production and directly influences trading performance. The Role As a Quant Developer, you will: • Collaborate closely with quant researchers to productionise models and design scalable research/tooling infrastructure, • Develop high-performance, robust code across Python and C++, • Build and maintain data pipelines, research platforms, and components of the live trading stack, • Optimise system performance, reliability, and throughput across large-scale datasets, • Contribute to architectural decisions across the full research-to-execution workflow What We’re Looking For • Exceptional programming skills in Python and/or C++, with a focus on writing clean, performant production code, • Strong understanding of core CS fundamentals (algorithms, distributed systems, profiling, testing), • Experience in a systematic trading environment or quantitative data domain is highly advantageous, though not essential, • A problem-solver with the ability to work collaboratively in a highly technical, research-driven environment, • Humility, curiosity, and a desire to build systems that have real, measurable impact, • Computer Science or STEM degree from a good university Why This Role Stands Out • Opportunity to join a top-performing fund with a deeply technical culture, • Work directly with elite researchers and developers on complex, meaningful problems, • Highly competitive compensation with significant performance-based upside, • Exposure to world-class infrastructure, datasets, and compute environments, • A role where strong engineering truly drives investment performance

We are a small London startup with the ambition to change education with ML-powered tutoring. Our flagship product is a mobile application for teaching English to intermediate and advanced learners. We’re on the verge of solving one of the biggest challenges in education – making high-quality, personalised learning accessible to everyone. What was once technologically impossible is now within our grasp. We’re looking for a Senior Full Stack Developer to join our growing development team. What you will do 🚀 • Design and implement a new high-scale system for millions of users., • Build convenient CI/CD processes and testing pipelines to support quick iterative development and system stability., • Work on ML model development with our team to build robust data pipelines and deploy ML models., • Analyse large corpora of data and build real-time recommendation systems., • Work with large amounts of data in different modalities (text, video, images, audio), • Work in a very cross-functional team, side by side with mobile developers, product managers, ML engineers, and designers. Essential skills 🙏 • Build high-load applications from scratch., • Deep knowledge of AWS., • Architecture planning and estimation skills (time, users, traffic, money, algorithmic complexity, cache, etc.)., • Architecture scalability and simplicity., • Research skills (new APIs, libraries, services, and their estimations)., • CI/CD automation pipelines., • Proficiency with Terraform and Docker., • SOLID, KISS principles, decomposition principles, and resolving monolith vs. microservices trade-offs., • Experience with SQL and NoSQL databases., • Best practices in building scalable mobile APIs (REST, HTTPS, etc.)., • Good principles of security management (secrets, protocols, etc.)., • Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills 👌 • Can speak, or learning to speak, more than one language, • Experience with real-time databases., • Experience with in-memory databases., • Experience with frontend frameworks., • Experience in developing educational products., • Knowledge-sharing experience (tech talks, articles, YouTube videos, etc.)., • Experience (even non-production) with different types of programming languages: interpreted, compiled, with garbage collection, manual memory management, reference counting memory management, etc. What we can offer ✨ • A real-deal startup adventure: you'll be hopping on a major project while it's still in the works!, • A crew all about people and products., • Work from our London office., • Freedom to suggest, implement, and test ideas., • Unlimited learning & development budget., • We also offer substantial relocation assistance to support your move, if required. Interview Process 🧪 • Intro call, • 3 technical interviews, which will all cover, • Problem Solving, • Architecture Design and Product Design, • Domain/Platform Knowledge After all interviews, we would like to invite you to work with us in our London office for 1-2 paid test days. If everything goes well, we will make an offer to the successful candidate.

Full-Stack (Angular + UX Focus) Full-time | Hybrid | Startup Environment Location: Central London Job Summary We’re looking for a motivated and curious Full Stack Engineer to join our early-stage startup based in London. We’re building an industry-specific productivity management tool, AI-powered, supported by strong investment and high-profile partners. In this role, you’ll work closely with the founding team to design and build user-friendly, responsive interfaces for our B2C productivity management web application. This is an exciting opportunity to contribute to a groundbreaking initiative and help shape the future of productivity. You’ll gain hands-on experience, contribute to real features, and grow your skills in a fast-paced, collaborative environment. From refining user journeys to implementing front-end components using modern tools and frameworks, your work will have real impact. What You’ll Do • Build and maintain responsive, user-focused interfaces using Angular and TypeScript, • Design and implement scalable full-stack architectures from scratch, • Develop backend services using Encore TS (experience with Express is highly transferable and sufficient), • Build and consume APIs, ensuring clean data flow between front-end and back-end, • Work with PostgreSQL and Prisma for data modeling and persistence, • Deploy and maintain services on Google Cloud Platform (GCP), • Build and maintain mobile applications using Capacitor, • Style applications using Tailwind CSS (and maintain existing SCSS where needed), • Write clean, maintainable, and efficient code across the stack, • Debug, troubleshoot, and optimize performance for a seamless user experience, • Collaborate closely with the founding team on product decisions, feasibility, and timelines, • Use Git for version control and collaborative development, • Write basic tests to ensure reliability of components and features What We’re Looking For • Experience as a Full-Stack Developer, • Hands-on experience with:, • Angular & TypeScript, • Express.js (or similar Node.js frameworks), • PostgreSQL, • Prisma, • Tailwind CSS, • Google Cloud Platform (GCP), • Capacitor for mobile development, • Comfortable working across both front-end and back-end codebases, • Experience working with APIs and structured data, • Familiarity with Git and common version control workflows, • Proactive, curious, and comfortable working in a small, fast-moving startup team Bonus Points • Experience with Encore TS, • UX or design sensibility, especially for productivity tools, • Familiarity with Figma or similar design tools, • Interest in accessibility and inclusive design, • Experience building personal, freelance, or startup projects Reporting: This position will be reporting directly to the founder. Salary and Benefits: To be discussed during the interview process.

Job Summary We are seeking a skilled Camel Microservice Architect with Senior experience to join our team. The ideal candidate will have expertise in Apache Camel, Spring Cloud, Spring Boot, Spring Integration, Java, Spring MVC, Spring Core, and the Spring Framework. Experience in the Telecom domain is a plus. This hybrid role requires a proactive individual who can design and implement robust technology solutions, ensuring alignment with business objectives and scalability for future growth. London based hybrid role – 2/3 times per week at office Responsibilities · Design & Development: · Architect and implement scalable technology solutions using Camel, Spring Cloud, and Spring Boot to meet business requirements. · Collaborate with cross-functional teams to integrate Spring Integration and Java technologies into existing systems. · Architecture Oversight: · Oversee the design of complex systems leveraging the full Spring Framework stack. · Document all architectural decisions and technical specifications for future reference. · Quality & Performance: · Develop and maintain high-quality code using Spring MVC and Spring Core, ensuring optimal performance and reliability. · Conduct thorough code reviews and enforce adherence to best practices and coding standards. · Optimise system performance and scalability to handle increased demand. · Collaboration & Mentorship: · Provide technical guidance and mentorship to junior developers, fostering a culture of continuous learning. · Work closely with Telecom domain experts to tailor solutions for industry-specific needs. · Stakeholder Engagement: · Translate business needs into technical specifications and ensure solutions align with strategic goals. · Continuous Improvement: · Stay updated with the latest industry trends and incorporate them into architecture as appropriate. Required Skills · Apache Camel, Spring Boot, Spring Cloud, Spring Integration, Spring MVC, Spring Core, Java · Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines · Familiarity with DevOps practices and observability tools Certifications Required · Spring Professional Certification · Java SE 11 Developer Certification Nice-to-Have · Telecom domain experience · Knowledge of integration patterns, API gateways, and cloud-native deployments Cog2025 If you wish to apply kindly email your profile to

Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote A Full Stack React, Golang Developer is needed for an exciting long-term contract engagement with a high-growth digital consultancy who partner closely with some of the UK’s most innovative product-led organisations. This is a fully remote contract offering exceptional autonomy, client exposure, and the chance to deliver meaningful product enhancements within the fraud/AML domain. 🚀 This Full Stack Developer role is perfect for someone who is strong across React, Next.JS, Golang, Microservices and GCP, and who thrives in modern product-focused, problem-solving environments - not "ticket factories." The consultancy has built their brand on deep relationships and a tight-knit contractor network. Culturally, they bring in people who represent them well with clients: collaborative, proactive, and fully bought into delivering outcomes (not just tasks). You’ll be joining a full-stack culture where autonomy, communication, and high output are essential. The Full Stack React Golang Developer contract: ⏰3 months rolling contract (12 Month+ runway) 💰£450/Day Outside IR35 🚂 Fully Remote 🧑 💻 Consultancy experience is highly advantageous ⭐ What You'll Be Working On You’ll be joining a product-focused squad working on fraud and anti-money-laundering enhancements for a major end-client. This includes: • Delivering new features across a re-platformed architecture, • Improving security and risk-mitigation checks, • Reducing customer friction by optimising daily automated checks, • Turning business problems into technical solutions (engineers help write their own tickets), • Operating in a consultancy-style model where you’ll be client-facing and trusted to take initiative This role gives you freedom, autonomy, and the opportunity to define how the team solves problems—very similar to what made their top contractors successful. ⭐ What This Hire MUST Have Beyond the tech stack, this consultancy is extremely selective about who represents them. You must be: • Strong full-stack (React + Next.js + Golang) with a backend lean, • Confident operating in ambiguity—capable of taking the reins and driving outcomes, • Highly collaborative, proactive, and able to “go the extra mile”, • Comfortable being client-facing with strong communication skills, • Someone who has worked in a modern product-operating model / Agile environment, • Ideally with prior consultancy experience (you understand the bigger picture and stakeholder expectations) If you are interested in this Full Stack React Golang Developer role please apply to the advert or send your CV to Full Stack Developer (React, Next.js, Golang, GCP) | Backend Leaning | Consultancy | £450/Day Outside IR35 | Fully Remote

Company Batonics builds high-throughput quantitative trading and research platforms and AI agents for leading funds and institutions across Asia, the U.S., and Europe. Our products deliver advanced market-microstructure analytics, backtesting, portfolio and risk tools, and formal verification for low-latency systems merging high-performance computing, AI, and frontier quantitative research. We have been almost doubling revenue every quarter, and need help on this exponential journey. We’re looking for a part-time engineer to help develop end-to-end quantitative trading and research systems including high-frequency trading (HFT) platforms. Details: Part-time (with transition to fulltime) - flexible hours Remote work with occasional in-person meetings Competitive hourly pay initially, scaling with workload and contribution to full time, revenue share possible from day 1, equity options on the table to capitalize on growth Your initial work will be on quant.batonics.com but feel free to explore loha.batonics.com Process: • Interview., • Task(s) (1-2hrs), • (Optional) Go head-to-head with me where we both tackle a multi-tier coding challenge (AI tools allowed)., • Follow-up chat., • Decision. Any of the below is a plus but not neccessary: • High-performance database systems & transactional correctness (isolation/serializability), • Real-time data pipelines & market-data processing (ultra-low latency, burst tolerance), • Performance/latency optimization to sub-millisecond: CPU cache/NUMA, SIMD, vectorization, I/O tuning, • Concurrency & memory models: lock-free/atomics, race detection (TSAN), contention profiling, • Backend/platform architecture & multi-region reliability (failover, disaster recovery), • SRE/reliability engineering: SLOs, load shedding, autoscaling, chaos testing, tracing, • GPU compute & numerical methods, plus floating-point stability and mixed precision, • Formal methods & rigorous testing: model checking, property-based testing, fuzzing, • Security: applied crypto (use of vetted libs), web/appsec, sandboxing (seccomp/AppArmor), secrets/keys, • Distributed systems & consensus (Raft/Paxos), consistency models, backpressure, idempotency, • Build systems & developer tooling: Bazel/CMake, reproducible builds, hermetic CI, static analysis, • Supply-chain hygiene: dependency pinning/lockfiles, SBOMs, provenance/attestations, • Infrastructure as Code: Kubernetes/Terraform with policy as code (OPA/Kyverno), • Experience in an HFT firm

Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. Location / WFH: You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week. About you: • You have strong backend Python coding skills, including API development, • You have full stack experience, including TypeScript and React (or another framework), • You have a good understanding of system design and scalability, • You're familiar with other technology in the stack including: AWS, Terraform, Docker, PostgreSQL, DynamoDB, CI/CD, GitHub actions, Blacksmith runners, • You're collaborative and pragmatic with great communication skills, keen to input into technical discussion and decision making What's in it for you: As a Full Stack Engineer you will receive a competitive package: • Salary to £120k, • Equity, • Impactful role with excellent career progression as the company scales, • Hybrid working, • Pension Apply now to find out more about this Full Stack Engineer / Developer (Python TypeScript) 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.

Location: London, Mayfair (hybrid, 3 days from office and 2 days from home) Employment Type: Full-time Tech Stack: React, TypeScript, Node.js, SQL Server,CI/CD, GraphQL/REST About the Role We’re looking for a hands-on Software Engineering Lead to help shape the future of our in-house PBSA management platform. You’ll be a pivotal part of our product team, leading the engineering function while actively contributing code and technical solutions. This is not a purely managerial role — you’ll be expected to design, build, and iterate alongside your team, with a strong focus on React and modern frontend practices. Your work will directly impact operations across tenancy management, student engagement, maintenance scheduling, finance workflows, and more. Key Responsibilities • Lead from the front: Architect, develop, and deliver features in our React/TypeScript-based platform., • Shape engineering strategy: Drive code quality, performance, and maintainability across the stack., • Mentor and guide: Support engineers at all levels through coaching, code reviews, and technical direction., • Collaborate cross-functionally: Work closely with product managers, operations leads, and designers to align tech with real-world PBSA needs., • Improve developer experience: Champion CI/CD, testing, observability, and documentation standards., • Champion quality and security: Ensure compliance with internal controls and external regulations (e.g., GDPR). You’ll Be a Great Fit If You… • Are hands-on and still love writing and reviewing code every day., • Bring 10+ years' experience building and scaling full-stack or frontend-heavy web apps., • Are fluent in React, TypeScript, HTML/CSS, and frontend performance optimization., • Understand backend architecture well enough to collaborate effectively (Node.js, Azure SQL, ASP.NET Core, REST/GraphQL)., • Know how to design multi-tenant SaaS or distributed systems., • Care deeply about clean code, DX, reusability, and practical UX., • Can think strategically but move fast like a startup engineer., • Are outcome-driven, not a fan of red tape or waterfall plans. Bonus Experience (Nice to Have) • Exposure to PBSA, property management, or booking systems., • Experience with Next.js, TailwindCSS, or component design systems., • Knowledge of Azure DevOps CI/CD pipelines, • Familiarity with payment integrations, CRM platforms, or accounting platforms. What You’ll Get • £75k to £85k, • 25 days annual leave + bank holidays, • Discretionary bonus, • A say in shaping the future of tech in the PBSA space About Us We’re building software tailored for the operational realities of modern PBSA providers from student onboarding to maintenance scheduling and financial automation. As we scale, we’re investing in engineering as a core discipline, not just a service layer. You'll have autonomy and support to ship real impact, fast.

Exceptional opportunity for an experienced Full Stack Developer to join a groundbreaking AI-powered video technology company revolutionising how we capture and experience live events. The future of media is multi perspective, interactive, and AI-driven. London's tech sector is at the forefront of this transformation, where innovative start ups are redefining storytelling through cutting-edge video technology and artificial intelligence. This Senior Full Stack Developer position offers the rare chance to shape the technical architecture of a platform that's changing how millions experience concerts, festivals, sports, and live events worldwide. About the Company This award winning London based technology company is pioneering multi-view video innovation, backed by recognition from Nasdaq, the European Innovation Council, and Innovate UK. Their AI-powered platform enables audiences to explore events from multiple camera angles simultaneously, creating personalised viewing experiences that blend entertainment with intelligent media delivery. Operating at the intersection of video streaming, artificial intelligence, and cloud infrastructure, they're scaling globally across media, events, and brand activations. The Opportunity As Senior Full Stack Developer, you'll serve as a technical leader within the product and engineering team, working directly alongside the CTO, product owner, and founders. This hands-on leadership role combines active development with technical mentorship, architectural decision-making, and Agile process ownership. You'll be the primary technical escalation point whilst remaining deeply involved in building scalable, secure solutions that power next-generation video experiences. Based in London with hybrid flexibility, this role offers genuine influence over both technology choices and engineering culture. Here's what you'll be doing: • Lead full stack development across front-end and back-end systems, translating product vision into robust technical implementations, • Collaborate directly with the CTO to architect scalable solutions and define the technical roadmap supporting long-term growth, • Drive Agile ceremonies and sprint delivery, working closely with the product owner to prioritise features and maintain development velocity, • Act as the main technical escalation resource, troubleshooting complex issues whilst maintaining high code quality standards through reviews and mentorship, • Design and optimise APIs, microservices architectures, and cloud infrastructure for performance, security, and scalability, • Support CI/CD pipelines, deployment processes, and DevOps responsibilities including containerised environments and monitoring systems, • Mentor junior developers, introducing best practices and modern development workflows including AI-assisted coding tools, • Collaborate with AI and R&D teams to integrate emerging technologies in video processing, data systems, and cloud platforms, • 5+ years professional experience as a Full Stack Developer, preferably within start-up or scale-up environments where agility and ownership are essential, • Proven technical leadership experience, whether mentoring developers, leading projects, or driving architectural decisions, • Expert proficiency in JavaScript/TypeScript with modern frameworks such as React, Next.js, or Vue for building responsive front-end experiences, • Strong back-end capabilities with Node.js and Express, plus experience in at least one of C#, Java, or Python for diverse system requirements, • Demonstrated experience designing scalable RESTful APIs, microservices architectures, and both SQL and NoSQL database solutions, • Solid understanding of cyber security principles including secure coding practices, encryption, authentication, and access management, • Hands-on experience with cloud platforms (AWS, GCP, or Azure) and containerisation technologies including Docker and Kubernetes, • Familiarity with CI/CD tools, infrastructure as code, performance monitoring, and modern DevOps practices, • Strong communication skills enabling effective collaboration with technical teams and non-technical stakeholders alike You must have the right to work in the United Kingdom. Visa sponsorship may be available for exceptional candidates. Key perks and benefits: • Competitive salary package between £45,000-£55,000 reflecting your experience and the mid-level market rate for Full Stack Developer roles in London, • Share options available following successful completion of probationary period, giving you genuine ownership in the company's success, • Flexible hybrid working arrangements with options for remote work or London office collaboration based on your preferences, • Direct collaboration with C-level executives and exposure to strategic decision-making in a scaling technology business, • Professional development opportunities to expand your skills in AI, video technology, and cloud architecture The convergence of artificial intelligence and video technology represents one of the fastest-growing sectors in the UK tech industry. Full Stack Developer professionals with experience in cloud platforms, real-time data processing, and scalable architectures are in exceptional demand as companies race to deliver next-generation media experiences. This sector offers continuous learning opportunities, exposure to cutting-edge technologies, and the chance to work on products that millions of people will use. For developers seeking meaningful impact alongside technical challenge, AI-powered media platforms provide the perfect career accelerator in London's thriving tech ecosystem. This exciting Senior Full Stack Developer opportunity in London is brought to you by The Opportunity Hub UK – connecting ambitious tech professionals with career-defining roles in innovation-led companies.

Other organisations may call this role Software Engineer, Software Developer, Back-End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer. As a Back-End Developer, you’ll design, build, and run secure, scalable back-end services that power our client’s web applicati

Salary: £65,000 - £70,000 Important A CV and a short cover letter are required for this role. Applications submitted without both will not be reviewed. If you are unable to attach a cover letter via LinkedIn, please email it to , including your name, the role title, and confirmation that you have applied via LinkedIn in the subject line. About iQ HealthTech At iQ HealthTech, we are dedicated to improving healthcare outcomes through innovative technology. Our flagship product, iQemo, supports safer and more efficient electronic systemic anticancer treatment (SACT) prescribing and is used by the NHS, and private healthcare providers in the UK, Australia and beyond. As we continue to expand into new regions, our systems are built to operate in complex, regulated healthcare environments worldwide. Our systems support clinicians making critical decisions every day. Reliability, clarity and thoughtful engineering matter here. As we grow into new regions, we design our platforms to scale across jurisdictions, healthcare models and regulatory expectations without losing focus on quality or safety. Role Summary We’re looking for a Senior .NET Developer who can independently deliver high-quality software and play a key role in replacing legacy .NET Framework systems with a modern, fully distributed architecture. This is a hands-on role for someone who takes ownership of features from idea through to completion, communicates clearly, and focuses on delivering tangible value. You will work closely with other Senior Developer, the Lead Developer, and our Software Architect. We are also beginning to introduce AI-assisted and agentic coding practices, and Senior Developers will play an important role in adopting these tools thoughtfully. Why Join Us? • Fully remote role with flexible working options, • Personal development plans, including a professional development/training budget, • 25 paid holiday days plus bank holidays (your birthday off too!), • Enhanced maternity and paternity pay, • 4% employer contribution to company pension scheme, • Access to wellbeing apps, • Government-set working from home monthly allowance, • An opportunity to make a real difference by developing technologies that improve patient outcomes, • Paid out-of-hours developer support rota once onboarded, • Competitive salary with regular reviews and opportunities for growth, • Work with innovative systems serving both national private providers and the NHS Duties and responsibilities • Owning features end to end, from concept to production., • Building modern .NET systems within a distributed architecture., • Collaborating with the Lead Developer and Software Architect on implementation., • Writing clean, secure, well-tested, and maintainable code., • Identifying gaps in knowledge and proactively addressing them., • Participating constructively in code reviews and technical discussions., • Using AI-assisted and agentic coding tools responsibly., • Working effectively in a fully remote team., • Participating in a paid out-of-hours developer support rota once fully onboarded. Key Skills Essential Technical Skills • Strong experience with .NET and C#., • Experience working with legacy .NET Framework systems., • Strong experience with modern .NET (6+)., • Good understanding of distributed systems and modern architectures., • Ability to deliver features independently from start to finish., • Strong problem-solving skills and attention to quality., • Clear communication and collaborative mindset. Essential Personal Attributes • Analytical thinker with strong problem-solving skills, • Clear and confident communicator who works well in collaborative teams, • Excellent written and spoken English is essential for this role., • Self-motivated, detail-focused, delivery-oriented, • Committed to writing clean, maintainable code and delivering high-quality software, • Curious and invested in continuous learning Desirable but not essential • Knowledge of iQemo or healthcare/medical device systems, • Understanding of medical regulations or e-prescribing workflows, • Understanding of HL7 and FHIR. Our Recruitment Process We’re committed to maintaining a safe and compliant workforce. The successful applicant will be appointed subject to satisfactory references and a basic DBS check. Applicants must have the legal right to live and work in the UK; we are unable to offer sponsorship. How to apply Please submit your CV with a short cover letter telling us why you’re interested in joining iQ HealthTech and how your skills fit this role. We use the cover letter to understand your motivation and approach, so applications without one won’t be reviewed. Please complete all follow-up questions to progress to the next stage. Take this opportunity to join iQ HealthTech and contribute to technology that transforms patient care. Apply now and be part of a team driving real innovation in healthcare.

Net and Kubernetes however you will work across the full stack, using TypeScript and React on the client side. Are you a bright, ambitious C# Developer who enjoys collaborating and working on complex systems with cutting edge technology?. As a C# Developer you'll join a cross functional Agile produc

Candidates must demonstrate strong technical expertise in Real Time systems design and development, with advanced proficiency in React/TypeScript and solid Java skills. Proven full stack development experience (React 70%/Java 30%). Solid understanding of: Backend integrations, Messaging frameworks,

Central London (hybrid up to 2 days a week).March 2026 (scope for extension as a long-term programme).We're looking for an expert Full-Stack Java Engineer to join a high-profile, fast-moving government programme with a fixed deadline.You'll work in a large team building microservices, scalable APIs,

Senior Full Stack Systems Engineer Reference: (phone number removed) Watford (Hybrid) £75,000 - £85,000 Step into a forward-looking organisation pushing the boundaries of environmental innovation.For more than a decade, this team has been redefining how the UK tracks and interprets en

In order to be suitable for this role you must have proven experience working in a Python Developer, Web Developer, Full Stack Developer, Software Engineer, Application Developer, Machine Learning Engineer, Programmer, or similar role focused on Python coding.

As a Full Stack Lead Engineer, you will be responsible for leading the design, development, and maintenance of scalable, high-performance applications across both Front End and Back End systems. Lead/Full Stack Developer AWS,TypeScript, ReactJS, Node. Lead Full Stack Developer, English Speaking.

Contract Senior Full Stack Software Engineer : Up to £450 Outside IR35 : Hybrid London : 3 months (rolling) We’re looking for a Contract Senior Full Stack Engineer to join a rapidly growing consultancy's exciting end client. As a Contract Senior Full Stack Software Engineer, you will design and build new features, improve architecture and performance and streamline development workflows, In addition you will ensure code quality, reliability, and security across their systems. Key Skills: • Java, Spring Boot, • TypeScript, React.js, • Azure, CI/CD, IaaS, DevSecOps Contract Details: • Up to £450 per day, Outside IR35, • 3 months (rolling), • Hybrid London This is an exciting opportunity for an experienced developer to apply their expertise in a fast-moving environment, shaping technologies that directly impact real time projects. Please note: Due to the high volume of applications, unfortunately, we may not be able to provide feedback to all applicants. Contract Senior Full Stack Software Engineer : Up to £450 Outside IR35 : Hybrid London : 3 months (rolling)

Full Stack Developer X2 (Mid-Level React. Full Stack Software Developer required to join our clients growing Product Development team. Collaborate closely with other developers through paired or mob programming.

JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, React, AWS | Disruptive Start-up, B2C | Rate c/ £500/day (Outside) | 6-months | UK remote or London Hybrid.We’re supporting an innovative, fast-moving founding team.They’re building an innovative B2C platform with lots o

UK (Hybrid, with flexibility for client site travel).Eligible for UK security clearance.This is an opportunity to develop innovative solutions in a collaborative, client-facing environment while growing your skills in a fast-paced consultancy setting.Build and maintain microservices using.Develop fr