1,937,568+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Senior Production Management Engineer — Hybrid (London)

Citibank (Switzerland) AG is seeking a Senior Engineer in Production Management to lead software development initiatives in London. This hybrid role requires strong Java programming skills, leadership in engineering practices, and the ability to implement CI/CD principles. Successful candidates will drive innova ...

Senior Backend Architect, Fraud & Risk – Remote

Fanatics Betting & Gaming is searching for a Staff Backend Engineer to lead the backend architectural evolution in fraud detection. The role requires 7+ years in software engineering, primarily with Java and Spring Boot, emphasizing secure and scalable systems. Ideal candidates will collaborate with Risk and Com ...

Senior SRE – Cloud Backend Reliability (Hybrid)

Capital One is seeking a Senior Software Development Engineer - SRE to lead the planning and implementation of key SRE initiatives in Nottingham. This role emphasizes developing cloud-based backend services with a hybrid work model allowing flexibility. Ideal candidates should have strong Java & Spring ...

Lead Java Scala Developer / PM in London Quant Capital

This is a job posted by our partner Jooble Yes, it’s a start-up, yes it's bleeding edge. Language is irrelevant. I want bright technologists who can cut solid code. I offer relocation for strong candidates. Job Description Quant Capital is urgently looking for a Lead Java / Scala / R ...

Senior Java Tech Lead: Cloud Microservices & FinTech

A leading financial institution in London is seeking a Senior Lead Software Engineer to deliver innovative cloud-native solutions. The ideal candidate will have significant experience in Java, be proficient with microservice architecture, and thrive in an agile environment. You'll be contributing to diverse proj ...

Senior Software Engineer (C++/Python) — Full SDLC, Flexible Hours

Premier IT, a well-established global engineering company in Greater London, seeks a Senior Software Engineer to oversee software development throughout its lifecycle. This role involves developing cutting-edge products and enhancing existing systems, while collaborating with external stakeholders. The ...

CIAM Software Engineer in Cardiff

Overview CIAM Software Engineer | Role: CIAM Software Engineer | Salary: Up to 60k | Location: Hybrid/Remote | Tech Stack: Auth0, Okta, Ping Identity, OAuth2, OpenID Connect (OIDC), SAML, SCIM, React, Angular, NestJS, Azure/AWS/GCP, Docker, Kubernetes, Terra ...

Principal Backend Architect for Live Game Services

A leading gaming company in the UK is seeking a Principal Software Engineer for backend services. You will lead the architecture of major game titles, mentor the engineering team, and act as the key contact for external clients. Candidates must have experience in game development and architecting distributed app ...

Senior Backend Engineer — Secure Cloud & Data Platforms

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients. You will work in an Agile team to leverage your expertise in JAVA, cloud technologies, and DevSecOps practices. This role requires at least 5 years of pr ...

Frontend Developer in Cardiff HEOR

Frontend Developer Cardiff, United Kingdom Posted 10 months ago Tech Stack React, Python, SOLID, HTML5, Node.js, JavaScript, Next.js, CSS, Computer Science Skills & Experience Computer Science, Software Engineering, Web Development, or a relate ...

Senior Software Engineer Front End| up to £75,000 | Hybrid

Senior Software Engineer - Front End up to £75,000 Hybrid Pearson Carter are currently working with a mobile and front-end technology provider who create bespoke solutions to clients worldwide within the iGaming industry. Their solutions are created to support ...

Senior Software Engineer Front End| up to £75,000 | Hybrid

Senior Software Engineer - Front End up to £75,000 Hybrid Pearson Carter are currently working with a mobile and front-end technology provider who create bespoke solutions to clients worldwide within the iGaming industry. Their solutions are created to support ...

Staff Engineer

Overview Everyone is involved from day one in shaping opportunities that provide outsized value to both clients and suppliers on Risk Ledger, keeping our users as top priority. We care deeply about building the right thing, in order to fundamentally shift mindsets in the cybersecurity industry. W ...

Staff Engineer

Overview Everyone is involved from day one in shaping opportunities that provide outsized value to both clients and suppliers on Risk Ledger, keeping our users as top priority. We care deeply about building the right thing, in order to fundamentally shift mindsets in the cybersecurity industry. W ...

Senior Fullstack Engineer AI Powered Fintech Platform (Remote)

A leading digital financial solutions company seeks a Senior Software Engineer / Staff Engineer / Architect to develop its AI-driven banking platform. The role involves designing secure serverless backends and developing user-friendly interfaces with React Native. Candidates should have over 10 years of experien ...

Java Developer Leicester

Join to apply for the Java Developer - Leicester role at IBM . Introduction At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with leadi ...

Senior Product Engineer

Our growth rate puts us in the top quartile of private B2B SaaS companies at our stage, and we’ve achieved it with low churn and without burning VC cash to get there. We’re small, profitable, and growing fast. We’re also an AI‑first company. Every process we build assumes the person running it will be usin ...

Senior Frontend Architect Lead React, Scale & Deliver

A notable technology company in Belfast is seeking a Lead Front End Engineer to shape and own the frontend strategy for a modern, cloud-native platform. This hands-on leadership role combines deep expertise in React with team mentorship, focusing on high-quality UI systems and engineering standards. The ideal ca ...

Payments Platform Lead Kotlin/React, Hybrid London

Formula. is seeking a Lead Software Engineer to support a transformation project for a major UK bank, focusing on rebuilding their payment system. This role requires expertise in payment gateway systems and experience in full stack development using Kotlin and React.js. The position involves team leade ...

Hybrid Frontend Tech Lead Next.js, React & TypeScript

A leading technology company in London is seeking a Tech Lead Front End Specialist to lead their frontend development team. In this hybrid position, you will design and optimize high-performance applications while mentoring engineers and ensuring coding best practices are followed. The ideal candidate has 10+ ye ...

Senior UI Lead — Hybrid React Architect (London)

A leading tech company in London is seeking a Senior UI Lead for a 6-month contract. This position offers a hybrid work model, requiring in-office attendance 3 days a week. The ideal candidate will have 8 years of software development experience, particularly in React JS, and proficiency in various design patter ...

Senior React Frontend Architect Lead, Mentor & Deliver

A leading financial services consultancy in Edinburgh is seeking a Frontend Developer to architect and implement complex frontend systems. This role involves applying UX/UI best practices and collaborating with stakeholders to deliver innovative solutions. The ideal candidate should have extensive experience wit ...

Lead Frontend Architect React/JS, Agile, Remote

A leading health tech company in Greater London is seeking an experienced Lead Frontend Developer to take ownership of their frontend stack. In this role, you'll architect, develop, and maintain modern frontends while applying Agile methodologies. You'll lead a team of engineers, ensuring a user-first approach a ...

Payments Platform Lead Kotlin/React, Hybrid London

Formula. is seeking a Lead Software Engineer to support a transformation project for a major UK bank, focusing on rebuilding their payment system. This role requires expertise in payment gateway systems and experience in full stack development using Kotlin and React.js. The position involves team leade ...

Senior Tech Lead Scalable React/Node Solutions

Expleo Group is seeking a Technical Leader in Milton Keynes to provide technical leadership and hands-on guidance in developing high-quality software solutions. You will lead teams to translate business requirements into technical designs and ensure adherence to best practices while fostering a collaborative ...

React Native Engineering Lead — Hybrid Mobile Apps

A global consultancy is seeking a React Native Engineering Lead to drive the technical delivery and strategy for mobile applications. This role involves leading both iOS and Android development efforts, ensuring architectural alignment, and determining the appropriateness of hybrid approaches. The ideal candidat ...

Senior Software Development Engineer Data Engineering

Senior Software Development Engineer – Data Engineering Nottingham Trent House (95002), United Kingdom, Nottingham, Nottinghamshire About This Role It’s an exciting time at Capital One UK. We’re on a mission to continue to build and modernise the cloud‑based data ecosystem to un ...

Founding Product Engineer (£110k £145k + Equity) at Nexcade AI

Overview Job Title: Founding Product Engineer Salary: £110k-£145k + Equity Company Description: Nexcade AI - Freshly funded AI startup automating complex global freight forwarding workflows Job Description: Join Nexcade AI as a Founding Product ...

Founding AI Engineer at Satorus Group Limited

Founding AI Engineer Salary: Not Disclosed Location: London, UK Satorus Group Limited is a London-based technology firm revolutionizing the intelligence sector by automating end-to-end investigation workflows. Moving beyond simple data aggregation, the team is building an AI-power ...

C# Developer Full Stack.Net Core JavaScript

C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100kAre you an ambitious C# Developer looking to apply your technical skills in a fast paced environment where technology, data and sport intersect?You could be progressing your career at a highly successful tec ...

Lead Backend Engineer Cloud Native Microservices & AI

Pearson Carter is seeking a Senior and Lead Backend Full Stack Engineer to join a leading PropTech organization in London. This role offers a chance to drive backend architecture, mentor engineers, and contribute to developing innovative software solutions. The ideal candidate will possess strong exper ...

Java Backend Engineer Microservices & Kafka (Onsite)

Sivara GmbH in Burgess Hill is seeking a talented Java Backend Engineer for a permanent full-time role. The successful candidate will have a strong background in Java, especially with Java 8 and Spring Boot, and will work three days a week onsite in our Burgess Hill office. This role involves building ...

DevOps Engineer 12

IT Global Consulting Limited – Seeking an experienced and highly motivated DevOps Engineer responsible for the development, maintenance and ongoing support of the platform, acting as the internal focal point for an enterprise platform. The ideal candidate is self‑motivated, ambitious and continuous ...

Senior Java Engineer Hybrid Global Finance Tech

Citigroup Inc. in Belfast is seeking a Software Engineer (Java) to join the Global Fixed Income Trade Processing Team. You will engineer innovative solutions within a team, contributing to the future of global finance. The ideal candidate will have strong experience in developing large, complex softwar ...

Java SDE II: Design, Deliver & Elevate Systems

Limelight Health is seeking a Software Development Engineer II - Java based in Greater London. This mid-level role focuses on implementing and delivering software solutions using Java and cloud technologies. The ideal candidate will mentor other engineers and ensure high-quality standards in development. ...

Senior SDET (Java)

Who we are:For over 20 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communications data of the world’s most highly regulated firms ...

React Native Developer

I'm working with a well-funded startup who are hunting for a React Native Developer to join their team near Liverpool Street. They're at an exciting time right now as they're popular in the UK market but would eventually like to be a global brand. To do this they'll be adding new features and ensuring ...

React Native Developer

I'm working with a well-funded startup who are hunting for a React Native Developer to join their team near Liverpool Street. They're at an exciting time right now as they're popular in the UK market but would eventually like to be a global brand. To do this they'll be adding new features and ensuring ...

Front End Engineer JS, Angular, React, Agile, Redux, Vanilla

Front End Engineer - JS, Angular, React, Agile, Redux, Vanilla Full‑time At AND Digital there’s a buzz. It’s the buzz of brilliant, curious people set free to imagine the impossible. A hubbub of ‘what ifs?’, ‘why nots?’ and ‘let’s trys’ all working together to push boundaries and create t ...

Senior Quality Engineer Hybrid

Senior Full Stack Quality Engineer – Katalon, Hybrid - London Location: Central London Working Pattern: Hybrid – 3 days per week in office, 2 days per week remote Our client, a leading financial services company are seeking a high-impact Tester/ Full Stack QA Engineer with experie ...

Senior Web Platform Engineer Build DevTools for Engineers

慨正橡扯 seeks a Senior Software Engineer for their Web Platform in Greater London, focusing on tools that empower engineers across M&S. You will lead in building, evolving, and maintaining capabilities that enhance developer experience. The ideal candidate will have strong expertise in React and TypeScrip ...

Lead UI Engineer Real Time Front Office Trading Platform

JPMorgan Chase & Co. is seeking a Lead Software Engineer (UI) to drive the technical direction of our front-office trading platform, Execute. This role involves leading the development of real-time user interfaces and optimizing user experience directly for traders. The successful candidate will hav ...

Senior Android Software Engineer, Ring Application Services

The Ring team is looking for a passionate and talented Senior Android Software Engineer who has experience building world-class Android mobile apps and the ability to design, build, and maintain scalable cloud-based backend systems. You will be responsible for developing mobile applications and cloud services th ...

Senior Android Software Engineer, Ring Application Services

The Ring team is looking for a passionate and talented Senior Android Software Engineer who has experience building world-class Android mobile apps and the ability to design, build, and maintain scalable cloud-based backend systems. You will be responsible for developing mobile applications and cloud services th ...

Principal Software Engineer – AI & Cloud (UK Travel)

A leading technology and consulting firm in London seeks a Manager to lead client accounts and engineering initiatives. The position demands proven leadership in managing teams and client relationships, with full-stack engineering skills across technologies such as React, Node.js, and Python. Candidates should a ...

Senior Backend Engineer – IAM & Scale (Contract)

PeopleWorks in Basildon is seeking a Software Engineer specializing in backend development and Identity Access Management (IAM). This contract role lasts until December 2026 and offers a competitive rate of £500 per day. The successful candidate will design and build high-scale backend services, serve ...

Senior Fullstack Engineer, Growth

Senior Fullstack Engineer, Growth (Visa Sponsorship and relocation to the UK offered) Senior Fullstack Engineer, Growth (Visa Sponsorship and relocation to the UK offered) Get AI-powered advice on this job and more exclusive features. About MoonPay Hi, we’re MoonP ...

Senior Backend Engineer in London MASS Analytics

Senior Backend Engineer London, United Kingdom Posted 12 months ago This is a job posted by our partner Jooble Tech stack NoSQL optimization Backend Databases Java SQL SQL & NoSQL Below is a snippet of ...

Senior Software Engineer / Principal Software Engineer C++, Python

Senior Software Engineer / Principal Software Engineer- C++, Python - Financial / Banking Candidates will have a minimum 8+ years C++ experience and excellent knowledge of Python -coming from a Financial / Banking background with knowledge of Equities, Futures & Options and Fixed Income and ...

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