1,939,340+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Staff Full Stack Engineer Lead, Build & Scale Impact

A dynamic fintech company based in London is seeking an experienced engineer to lead technology projects and mentor team members. You will work closely with the founding team to shape technical architecture and delivery excellence. Ideal candidates have a strong background in JavaScript technologies and excel in ...

Real Time FinTech Full Stack Engineer (Frontend Lead)

Jack & Jill is seeking a Full Stack Product Engineer in London to lead frontend development for the UK’s first real-time credit bureau. You will work directly with the CTO in a high-ownership environment, contributing to both frontend and backend services using modern technologies like Svelte, TypeScript, and ...

Lead Full Stack Engineer Shape AI Driven Platform

hedgehog lab is seeking a Full Stack Engineer to join their product team, working on one of the UK's leading procurement platforms. You will influence architectural decisions and work across a modern tech stack, beginning with PHP/Laravel and transitioning to Python. This role offers a unique opportuni ...

Lead Full Stack Engineer Shape AI Driven Platform

hedgehog lab is seeking a Lead/Senior Full Stack Engineer to influence technical direction in a high-traffic procurement platform. The role involves working across PHP/Laravel and transitioning towards a Python architecture, offering a unique opportunity to shape project decisions. Responsibilities inc ...

Senior Full Stack Engineer: Lead Projects & Mentor Teams

Zaltek Ltd (trading as Zaltek Digital) is seeking an experienced Senior Software Developer to join our growing development team in Newcastle upon Tyne. You will take ownership of complex projects and mentor junior developers. Successful candidates will have at least 3 years of commercial software devel ...

Senior Full Stack Engineer – Cloud & Incident Response Lead

A technology firm in Leeds is looking for a Senior Full Stack Engineer to support and enhance a diverse range of applications. You will handle business-as-usual operations and contribute to complex incident management. The ideal candidate should have strong knowledge in Java, Python, NodeJS, or C#, and experienc ...

Lead Full Stack Engineer — Hybrid Role with Equity

Spruce is seeking a Lead Full Stack Engineer to oversee technical strategy and hands-on coding to aid in transitioning the UK’s heating industry. You will collaborate closely with teams to improve product quality and user experience while mentoring others. This role offers an attractive salary of £90–1 ...

Lead Full Stack Engineer (Perm) TypeScript / Next.js / Node.js

Job title: Lead Full Stack Engineer (TypeScript / Next.js / Node.js) Type: Full-time, Permanent Location: UK (flexible home, office, or hybrid working) UK offices: Edinburgh, Newcastle, Leeds, Manchester and London Start date: Early Ma ...

Lead Full Stack Engineer — Remote First, Share Options

PlannerPal, a UK-based wealth tech company, is seeking a Lead Full-Stack Engineer to design solutions and lead delivery in a distributed engineering setup. You will be responsible for ensuring high-quality output while managing a squad's tasks effectively. The role requires extensive experience in Pyth ...

Lead Staff Engineer Full Stack SaaS (TypeScript/Node)

A leading UK-based SaaS company is seeking a Staff Engineer / Principal Engineer / Lead Engineer to join their hybrid team in Portsmouth. This role involves leading the development of customer-facing products using modern technologies such as NodeJS and TypeScript, in a collaborative environment. With a focus on ...

Senior AWS Cloud Full Stack Engineer & Tech Lead

IBM in Winchester, England, is looking for a cloud application developer to architect and maintain secure and scalable cloud applications. The candidate will lead junior developers and manage complex technical challenges. A strong focus on full-stack development with cloud platforms is essential. IBM offers m ...

Senior AWS Cloud Full Stack Engineer & Tech Lead

IBM in the East Midlands seeks a skilled professional to architect and develop secure cloud applications for their Public Sector and Defence clients. You will lead a team of developers, ensuring high-quality application delivery while resolving complex technical challenges. The ideal candidate possesse ...

Senior Full Stack Engineer: Lead Public Sector Solutions

A digital transformation consultancy in Altrincham is seeking a Senior Full Stack Software Engineer to design and deliver digital solutions for public sector challenges. The role requires ownership of delivery, strong expertise in .NET, Java, or Python, and mentoring skills. The ideal candidate will thrive in a ...

Lead Full Stack Engineer for Public Sector Transformation

A leading digital transformation consultancy in the UK seeks a Lead Full Stack Software Engineer to take ownership of complex public sector solutions. You will guide teams through architecture, design, and delivery. The ideal candidate has extensive experience with .NET, Java, or Python and excels in Agile envir ...

Lead Full Stack Engineer: Microservices & CI/CD Leader

HSBC in Sheffield is seeking an experienced Lead Full Stack Engineer to join their team. The role involves delivering code, supporting system architecture aligned to microservices, and driving engineering culture across teams. Ideal candidates will have a proven software engineering track record, stron ...

Principal Full Stack Engineer: AI Driven Platform Lead

La Fosse Associates in Liverpool is seeking a Principal Full Stack Engineer to lead the redesign of a core automotive marketing platform using modern Node.js technologies. You will be a key player in architecting and shaping high-performance backend services and APIs, integrating cutting-edge AI tooling into ...

Senior Lead Full Stack Engineer Scale Cloud SaaS

Oliver Wyman in Greater London is seeking a Senior Lead Software Engineer (Full Stack) to lead the design and development of SaaS solutions for large retailers. In this role, you will influence product roadmaps and ensure high-quality delivery while fostering a culture of technical excellence. The idea ...

Senior Full Stack Engineer Lead Public Sector DX

Informed Solutions is seeking a Senior Full Stack Software Engineer based in the UK to lead digital solution delivery that impacts the public sector. This role involves designing, building, and delivering complex digital solutions, collaborating with a high-performing team using technologies such as .NET, Jav ...

Software Engineering Graduate Programme UnderwriteMe (London)

Start date September 2026 Salary £ competitive + excellent benefits About Us UnderwriteMe is a UK‑based Insurtech on a mission to make life insurance simpler and more accessible. We build cutting‑edge SaaS technology for insurers and advisers, helping protect m ...

Full Stack Engineer, AI systems

About the Role A1 is building a proactive AI chat app for everyday users to bring intelligence to conversations, errands, organising and workflows. Unlike traditional chat-based applications, our product focuses on achieving high reliability for long-running workflows, persistent context, ...

Senior Full Stack Engineer Contractor

Who are OnBuy? OnBuy are an online marketplace who are on a mission of being the best choice for every customer, everywhere. We have recently been named one of the UK's fastest-growing tech companies in the Sunday Times 100 Tech list. All achievements we are very proud of, but we ...

Senior Full Stack Engineer: Improbable

Improbable is a Venture Builder. We are working with leaders to create businesses in AI transformation, the metaverse and web3. We both create businesses from scratch and invest in existing businesses. Our central services teams work with ventures to help them achieve success; including early stage prototy ...

Senior Full Stack Engineer (Backend)

Must be UK based to be considered for this roleWhat is the job?Do you enjoy coupling your engineering expertise with AI technology to move fast and craft scalable software, whilst solving tough technical challenges?Our new Senior Full-Stack Developer (Backend Leaning) will join ...

Senior Full Stack Engineer (Backend)

Must be UK based to be considered for this roleWhat is the job?Do you enjoy coupling your engineering expertise with AI technology to move fast and craft scalable software, whilst solving tough technical challenges?Our new Senior Full-Stack Developer (Backend Leaning) will join ...

Senior Full Stack Engineer (3D)

**Job Requisition ID #** 26WD97295 **Position Overview** As a **Senior Full-Stack Engineer (3D)** , you will be a lead contributor in building the next generation of AI-native applications. You sit at the intersection of robust backend orchestration and intuitive frontend design. Your ...

Full‑Stack Machine Learning Engineer

About the Business LexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and industry specific content with advanced technology and analytics to assist them in evaluating and predicting risk and enhancing operational efficiency. We use the power of data and a ...

Senior Full Stack Engineer ClickStack

Join to apply for the Senior Full Stack Engineer - HyperDX role at ClickHouse . About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast‑growing private cloud companies. With over 2,000 customers and ARR that has more ...

Full Stack Engineer Enterprise SaaS

A growing product-focused cybersecurity company in the United Kingdom is seeking a Full Stack Engineer to join their experienced engineering team. This hands-on role emphasizes collaboration and focuses on building and improving features across both backend and frontend systems. The ideal candidate should have o ...

London Based Staff Full Stack Engineer – GenAI & LangChain

A leading software development firm is seeking a hands-on full stack engineer to join their team in London. The ideal candidate will lead teams in delivering high-quality software and must possess strong skills in TDD, agile methodologies, and various programming languages including Python and React. This role i ...

Full Stack Software Developer: Risk & Regulatory (Hybrid)

慨正橡扯 is seeking a Software Developer to work in a dynamic and collaborative team. This role focuses on building scalable solutions using technologies such as Typescript, React, JavaScript, and Golang. The candidate should possess a solid foundation in software development and experience with responsive design ...

Full Stack Software Developer – Martech Content (Hybrid)

慨正橡扯 in Manchester is looking for a Software Developer to join the Martech Sports Content team. You will be responsible for marketing and affiliate systems, enhancing various content management platforms, and supporting internal business systems. The ideal candidate will have strong skills in C#, ASP.N ...

Full Stack Ruby on Rails Software Developer

About the Role Full Stack Ruby On Rails Software Developer At iRock School of Music, we’re on a mission to transform the way children experience music education. Through high-energy, band-based sessions in primary schools across the UK, we give thousands of children each week the ...

Full Stack Software Intern — Real Projects & Mentorship

A forward-thinking digital company in Chester is seeking a Software Developer Intern to work on real projects alongside experienced developers. This hands-on position will provide valuable experience across the full stack, involving both client-facing applications and backend systems. Ideal candidates are profic ...

Full Stack Engineer ML/GenAI

To be successful in this project, the chosen engineer must have recent project experience developing and integrating a Chat/Messaging application within the education or learning industry. Our client wants to pay up to £475 PD Outside IR 35 to start ASAP for an initial 3/6 month contract on a hybri ...

Senior Full Stack Quality Engineer

A well-established specialist insurance business with a strong reputation for technical expertise, innovation and disciplined risk management. The organisation is investing in technology, operations, security and solution design to support growth, improve efficiency and deliver greater value to the busines ...

Autonomy Systems Full Stack Engineer

A defense technology company is seeking a Full-Stack Engineer to join the Maneuver Dominance team in London. The role involves architecting systems for autonomous capabilities, requiring expertise across various programming languages and experience in distributed systems. Candidates should have a strong backgrou ...

Full Stack Engineer (AI Native)

About DELLI DELLI exists to empower the independent economy, the makers, creators, and producers whose craft shapes the way the world tastes, feels, and connects. We imagine a world where every maker has a companion; a quiet, intelligent partner who handles the chaos so they can stay focused on t ...

Senior Full Stack AI Engineer

HelloKindred are specialists in staffing marketing, creative and technology roles, offering a range of talent solutions that can be delivered on-site, remotely or hybrid. Our vision is to make work accessible and people’s lives better. We do this by disrupting traditional employment barriers –conne ...

Senior Full Stack JavaScript Engineer

Gravity Engineering Services Pvt Ltd. is seeking a skilled full-stack developer in Greater London to architect, develop, and maintain web and mobile applications. You will collaborate with cross-functional teams and lead code reviews while mentoring junior developers. The ideal candidate has 5+ years o ...

Full Stack Engineer (Internal Tooling)

As a Software Engineer (Internal Tooling), you will remove constraints that slow down hardware. Owning internal tools end-to-end, you will partner with hardware and test teams to spot friction, ship MVP solutions fast, and iterate relentlessly. Your projects could range from scalable CFD automation to desi ...

Full‐Stack Machine Learning Engineer

## Full‐Stack Machine Learning EngineerApplylocations: UK - London (London Wall)time type: Full timeposted on: Posted 7 Days Agojob requisition id: R **About the Business**LexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and industry specific content with ...

Digital Senior Full Stack Engineer

How you'll help us live our purpose We've been helping our members save for their future and buy their own home since 1875. Join us and you'll play a big role in helping us to put home ownership within reach of more people, generation after generation. How you'll make a difference ...

Senior Full Stack Engineer — Remote

Obsidian is hiring Senior Software Engineers for a high-urgency closed-source application development project in the United Kingdom. We are looking for experienced full-stack developers who can work independently and build scalable systems to contribute across backend and frontend development. The idea ...

Hybrid Full Stack Angular Engineer

Recruit4Mum is hiring a Full Stack Angular Software Engineer in Edinburgh. This role involves designing and maintaining scalable web applications, collaborating with cross-functional teams to deliver high-quality solutions. Applicants should have a strong background in Angular and modern web technologi ...

Senior Enterprise Full Stack Engineer

Ema in the Greater London area is seeking an experienced Enterprise Software Engineer to develop and maintain high-quality enterprise applications. The role involves working collaboratively with product managers, designers, and developers to deliver software solutions that meet enterprise client needs. <p ...

Full Stack Engineer TypeScript Node

Full Stack Engineer TypeScript Node (PR/ ) London, England Salary: GBP 85,000 - GBP 100,000 per annum + bonus + benefits Full Stack Engineer / Developer (TypeScript Node) London / WFH to £100k Are you a technologist Full Stack Engineer looking for an opportunity to take ownership ...

Senior Full Stack Engineer hybrid

Blue Light Card. Individually great, together unstoppable The Role and the Team At Blue Light Card, we’re on a mission to support our millions of members with meaningful digital experiences. We have recently undertaken a replatforming transformation, setting the founda ...

Vice President, Full‐Stack Engineer

Vice President, Full‑Stack Engineer At BNY, our culture allows us to run our company better and enables employees’ growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the world’s investible assets. Every day, o ...

Full Stack Python & Angular Engineer

ELLIOTT MOSS CONSULTING PTE. LTD. is seeking a Full Stack Developer in Penarth, United Kingdom. The ideal candidate will have strong expertise in Python for backend development and Angular for frontend creation. Key responsibilities include system design, business analysis, and hands-on development to create sca ...

Founding Full Stack AI Engineer

About Our Client Our Client is a fast-growing AI company transforming customer service through AI-powered voice agents. Their technology enables businesses to automate calls, emails, WhatsApp conversations, bookings, payments, and CRM workflows with human-like efficiency. Founded in 2023, ...

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    Lead Software Engineer Full Stack Java React Jobs in United Kingdom Job Search Guide, Trends and Insights