43 lead full stack developer jobs found

About Synechron: Synechron is a leading digital transformation consulting firm dedicated to delivering innovative technology solutions within banking, financial services, and insurance. We thrive on engineering excellence, collaboration, and a passion for cutting-edge technologies. We are seeking a highly experienced Lead Full Stack Java Developer (10+ years) with strong expertise in the latest Core Java versions to lead and drive end-to-end development activities. The role requires a hands-on technical leader capable of guiding a development team, providing architectural and coding solutions, and ensuring successful delivery of high-quality applications Key Responsibilities Lead and manage a team of full stack developers , providing technical direction, guidance, and mentorship. Drive the design, development, and implementation of scalable, high-performance applications using modern Java. Take ownership of development activities, ensuring alignment...

Full job description Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does...

Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires an...

Full job description Join Secure Code Warrior to create a safer digital landscape by assisting companies to secure their software through developer-led practices!   Secure Code Warrior’s mission is to establish new standards for coding that transform the ways software is created. We do this by providing the world’s leading agile learning platform that delivers the most effective secure coding solution for developers to learn, apply, and retain software security principles. More than 600 enterprises trust Secure Code Warrior to implement agile learning security programs, build safer software, and create a culture of developer-driven security. We are a venture-backed company with offices in Australia, the United States, Belgium, Iceland, and the United Kingdom.   Secure Code Warrior is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across Windows and macOS. In this contract...

3173 is a privately owned UK firm of pensions experts with clients throughout the UK, serviced from offices in London, Belfast, Glasgow, Manchester, Birmingham, Bristol and Leeds.   The 3173 Group of companies includes Dalriada Trustees Limited (Dalriada) one of the UK’s largest professional pension scheme trustee companies. Spence & Partners provides full pension actuarial, consulting, investment consulting and administration services that provide simply smarter solutions for trustees, employers and members and Mantle: reimagines the traditional models of defined benefit pensions administration and actuarial valuation software. About You We are seeking an experienced Microsoft Dynamics 365 Developer to join the Technology team on an initial 6-month contract based in Belfast. This role sits within the CTO function and will focus exclusively on the delivery, enhancement, and support of an improved Microsoft Dynamics 365 CRM...

Company Description At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers, and collaborators who believe in pushing boundaries, not egos. If you're a seasoned C++ Developer ready to lead, innovate, and make an impact, we want to hear from you. Job Description As a C++ Developer at [DI], you will focus on developing Front Office Trading software, primarily working within the market data development teams. You will gain exposure to the full software stack, using modern development tools and concepts to deliver high quality, best practice software solutions. This will involve working on the end-to-end development of low latency software components written in C++. Project responsibilities will range from design, architecture and development of greenfield projects to maintenance, latency tuning and enhancements. Qualifications 4+ years’ experience of C++ development...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...

Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires an...

About Us 3173 is a privately owned UK firm of pensions experts with clients throughout the UK, serviced from offices in London, Belfast, Glasgow, Manchester, Birmingham, Bristol and Leeds.   The 3173 Group of companies includes Dalriada Trustees Limited (Dalriada) one of the UK’s largest professional pension scheme trustee companies. Spence & Partners provides full pension actuarial, consulting, investment consulting and administration services that provide simply smarter solutions for trustees, employers and members and Mantle: reimagines the traditional models of defined benefit pensions administration and actuarial valuation software. About You We are seeking an experienced Microsoft Dynamics 365 Developer to join the Technology team on an initial 6-month contract based in Belfast. This role sits within the CTO function and will focus exclusively on the delivery, enhancement, and support of an improved Microsoft...

Join Secure Code Warrior to create a safer digital landscape by assisting companies to secure their software through developer-led practices!   Secure Code Warrior’s mission is to establish new standards for coding that transform the ways software is created. We do this by providing the world’s leading agile learning platform that delivers the most effective secure coding solution for developers to learn, apply, and retain software security principles. More than 600 enterprises trust Secure Code Warrior to implement agile learning security programs, build safer software, and create a culture of developer-driven security. We are a venture-backed company with offices in Australia, the United States, Belgium, Iceland, and the United Kingdom.   Secure Code Warrior is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across Windows and macOS. In this contract role, you will be the architectural...

About Us   3173 is a privately owned UK firm of pensions experts with clients throughout the UK, serviced from offices in London, Belfast, Glasgow, Manchester, Birmingham, Bristol and Leeds.   The 3173 Group of companies includes Dalriada Trustees Limited (Dalriada) one of the UK’s largest professional pension scheme trustee companies. Spence & Partners provides full pension actuarial, consulting, investment consulting and administration services that provide simply smarter solutions for trustees, employers and members and Mantle: reimagines the traditional models of defined benefit pensions administration and actuarial valuation software.   About You   We are seeking an experienced Microsoft Dynamics 365 Developer to join the Technology team on an initial 6-month contract based in Belfast. This role sits within the CTO function and will focus exclusively on the delivery, enhancement, and support of an improved Microsoft...

CONTRACT: Monthly Rolling START DATE: ASAP / Immediate PAYMENT: Day Rate LOCATION: Hybrid - 1 Days Remote, 4 Days In Office   WEBSITE: https://growthcurve.co   This role is open to Citizens / Permanent Residents of the United Kingdom ONLY.   We're the world's leading growth marketing agency. We work with some of the most ambitious companies globally across fintech, consumer apps, ecommerce, gaming and B2B, delivering full-funnel growth through strategy, media and creative under one roof.   We're building the main marketing site for an app product and we need a Senior Full Stack Developer to own it end-to-end. You'll architect, build, deploy and establish the build pipeline for a site that will be the primary commercial front door for the product.   THE ROLE You're the technical lead on this build. You'll take the project from initial architecture through to launch and hand-off, working closely with...

At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers, and collaborators who believe in pushing boundaries, not egos. If you're a seasoned C++ Developer ready to lead, innovate, and make an impact, we want to hear from you. Job Description As a C++ Developer at [DI], you will focus on developing Front Office Trading software, primarily working within the market data development teams. You will gain exposure to the full software stack, using modern development tools and concepts to deliver high quality, best practice software solutions. This will involve working on the end-to-end development of low latency software components written in C++. Project responsibilities will range from design, architecture and development of greenfield projects to maintenance, latency tuning and enhancements. Qualifications 4+ years’ experience of C++ development using C++17 and/or...

Senior Full Stack Developer - Outside IR35 - Contract - SC ideal   We are looking for a senior full-stack developer to join our team, working collaboratively in a fast-paced environment with some ambiguity. This is a senior dev role with a focus on supporting more junior members of the team and sharing that with the existing tech lead. The product is a note-taking and summarisation tool for use in local government, for which the remaining technical work mainly comprises infrastructure, evals, technical improvements, and UCD-driven product features.   Must have:   Experience mentoring junior developers Previously given responsibility for a chunk of delivery Comfortable working in Python and Typescript + React Full-stack developer   Nice to have: previous experience with AWS, Terraform, any UK government projects Slightly nice to have but lower priority: LLM/AI experience and Next.JS   £600 per day...

ABOUT THE COMPANY Onmo believes that everyone has the right to access, understand and manage their money with confidence. Our ambition is to improve lives by providing better clarity, intelligence and technology to empower every individual in making the smartest financial decisions. We may be young but we have an incredible team in place and big ambitions for the years ahead. We design our products to help demystify money matters wherever possible, providing customers with more financial control and flexibility in their lives. This helps them get more from what they have, or with smart decisions, make more of the same. It also means people spend less time with the negative aspects of money and more on the positive - enjoying what the world has to offer. ABOUT THE ROLE Tech Stack Backend : AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React / Next.js, React Native Programming...

The Ministry of Justice (MoJ) priorities include improving public safety and reducing reoffending by reforming prisons, probation and youth justice, and building a justice system which makes access to justice swifter and more certain for all citizens whatever their background. Project professionals in the MoJ help to improve the government's ability to protect the public and reduce reoffending, and to provide a more effective, transparent and responsive criminal justice system for victims and the public.   The Delivery Manager will be joining the Justice Redact team - comprising Full-Stack Developer, DevOps Engineer, Data Scientists, a User Researcher, a Senior Interaction Designer, a Content Designer, a Product Lead, and Subject Matter Experts - to ensure the team works well together and the right AI product is built, delivered efficiently, and actually works in the real world.   The project addresses a significant challenge within the Ministry of Justice...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a principal-level engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...

Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires an understanding of...

Senior Full Stack Developer - Outside IR35 - Contract - SC ideal   We are looking for a senior full-stack developer to join our team, working collaboratively in a fast-paced environment with some ambiguity. This is a senior dev role with a focus on supporting more junior members of the team and sharing that with the existing tech lead. The product is a note-taking and summarisation tool for use in local government, for which the remaining technical work mainly comprises infrastructure, evals, technical improvements, and UCD-driven product features.   Must have:   Experience mentoring junior developers Previously given responsibility for a chunk of delivery Comfortable working in Python and Typescript + React Full-stack developer   Nice to have: previous experience with AWS, Terraform, any UK government projects Slightly nice to have but lower priority: LLM/AI experience and Next.JS   £600 per day...

About IconicShift IconicShift AI is building a platform that turns founder intent into usable strategic outputs — clear strategies, investor-grade pitches, and practical roadmaps. It is based on the experience of Mike Harris, founding CEO of First Direct (the world’s first telephone bank), founding CEO of Egg (the world’s first internet bank), and CEO of Mercury Communications (that created some of the UK’s first mobile and cable networks). Most founders don’t fail because they lack ideas or options. They fail because their thinking drifts and they can’t afford the experienced support they need. Their story changes, priorities multiply, and the business loses its single direction. Most AI approaches just help them fail faster by accelerating rushed decisions. IconicShift works by creating a single source of strategic truth, where every decision is tracked and held to account. It refuses to move forward without explicit acceptance of core strategic bets, ensuring...