1,937,552+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Backend Software Engineer SC Clearance

Backend Software Engineer / Developer (Defence SC Clearance) *Newcastle onsite* to £120k+Do you have technical expertise combined with SC Clearance?You could be joining a scaling Technology Consultancy as they break into Defence sector work, the company has already experienced huge succes ...

Backend Software Engineer SC Clearance

Backend Software Engineer / Developer (Defence SC Clearance) *Newcastle onsite* to £120k+Do you have technical expertise combined with SC Clearance?You could be joining a scaling Technology Consultancy as they break into Defence sector work, the company has already experienced huge succes ...

Senior Engineer

About DucoDuco is building the agentic Operations platform for financial services. We help firms break the bad data cycle that has held the industry back for decades by handing repetitive, time-intensive data work to AI agents, so their teams can step up to become decision makers. Our no-code plat ...

Senior Fullstack Engineer (Frontend Lean) Remote

Few&Far is seeking a Senior Fullstack Engineer (frontend leaning) to join their fast-growing future-of-work platform. The role focuses on building user-facing features across a modern tech stack, which combines TypeScript, React, and Python. Ideal candidates will have strong React and TypeScript skills ...

Backend Engineer

Software Engineer / C# / Backend / APIs / Software / Cardiff / Permanent / Hybrid Vivo Talent is working with a business that has huge growth plans for this year. We're actively working with them to recruit a backend engineer into their team, with strong hands‑on experience with C# to help build a ...

Senior Java Backend Engineer — Global Fintech Microservices

ARQ, a rapidly growing fintech in Greater London, is seeking a Backend Engineer to design and maintain scalable backend systems. This role involves greenfield development and building REST APIs, leveraging a tech stack primarily based on Java and Postgres. The ideal candidate will have a bachelor's deg ...

Java Developer

Overview Role: Java Developer Location: We operate a hybrid schedule, meaning twice monthly in the office based in central London Salary: £ DOE plus extensive benefits Contract type: Permanent Employment type: Full time ...

Software Engineer, Front End Leaning (Tech Lead level)

Responsibilities Work end‑to‑end on our client application written in React and our monolithic backend written in Python, managing the safe release of features to the customer base. Own projects that span months, breaking them into iteratively deliverable steps. Work dir ...

Mid Level Full Stack Web Developer

Your core responsibilities will be helping bring a new product to life by continuing development of our inhouse custom solution, enhancing with new features and capabilities. You should be confident with data manipulation and understand modern web design principles. Although your core focus will be ...

Node JS / Typescript Full Stack Developer

5+ years of professional backend development experience Strong Node.js + TypeScript skills — this is your primary tool Solid experience with WebSockets / socket.io Good grasp of REST API design: auth, error handling, versioning Comfortable with Redis (pub/sub, ...

Remote Full Stack Developer Healthcare & Microservices

Sivara GmbH is seeking a dynamic Full Stack Software Developer to join our growing team. This role offers the option to work fully remote or in a hybrid model, supporting healthcare organizations through innovative data integration and technical solutions. Key responsibilities include developing user interfac ...

Remote Full stack TypeScript Developer Kikin

We are seeking an experienced Full-stack TypeScript Developer to join our close-knit, product development team. As a Full-stack TypeScript Developer, you will play a pivotal role in the design, development, and implementation of our software solutions. You will be responsible for both front-end and back-en ...

Full Stack Architect C#, .NET, Azure

Consortia Group is seeking a Full Stack Engineer to join their technology team in London, specializing in asset and wealth management. This hybrid position involves developing and maintaining application and database code, ideally suited for those familiar with C#, .NET, and T-SQL. The role offers the ...

Senior Full Stack Developer Team Leader

Senior Full Stack Developer - Team Leader Full‑time A growing financial services intermediary requires the services of a driven and enthusiastic software engineer with experience in managing teams along with hands‑on development experience. This is a multi‑faceted position which will enab ...

Full Stack with PHP Symfony2 Developer

Our client, a major Art’s venue located in the heart of London, is now looking for an experienced Full Stack with PHP Symfony2 to join the team. As a Full Stack developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.You'll ...

Full Stack .NET Developer (C#/VB.NET)

Focus IT Recruitment is looking for .NET Developers in Milton Keynes to enhance their team. The role involves delivering new features and improving existing software while working on both server-side and client-side components. The ideal candidates should possess strong skills in .NET and C#, be proact ...

Senior PHP & Laravel Full Stack Developer

PAW Associates in London City is seeking a PHP Developer to focus on full-stack web development for the global website and CMS. You will work alongside the Marketing/Digital Execution team to deliver an engaging, multi-lingual web experience. The ideal candidate must have 3-5 years of experience in web ...

Full Stack Developer (TypeScript, Next.js) Hybrid

Spydr, a leading digital agency in Bristol, is seeking a Full-Stack Software Developer to develop and maintain innovative web applications. You will work closely with stakeholders throughout the software development lifecycle and tackle a variety of projects. The ideal candidate will have over 7 years ...

Full Stack PHP Developer – Mid level

About the Team Our teams are collaborative, forward thinking, and agile. We support multiple products with a challenging and exciting set of features and provide real opportunity for our teams to contribute to the success of the organisation. About the Role You will contribute t ...

Python AI Full Stack Developer (LangChain)

An innovative engineering consultancy in Greater London is seeking an experienced Python AI Developer. The ideal candidate should possess strong Python development skills and proven experience with AI agents and microservices. Responsibilities include building AI solutions, mentoring team members, and ensuring h ...

Full Stack Rails Developer (Web & Mobile)

Experience Experience with front-end technologies such as JavaScript, HTML, and CSS. Familiarity with RESTful APIs and web services. Knowledge of database systems, particularly PostgreSQL. Experience with mobile development frameworks such as React Native or Flutter. Knowledge of cloud se ...

Senior Magento Developer | Ecommerce & Full Stack

Calibre Digital Consulting Limited is seeking mid- to senior level Full Stack Magento Developers to join their growing team in the United Kingdom, specifically across Manchester, Warrington, and Lancashire. This role offers a fantastic opportunity to work with a market-leading client and contribute to ...

MERN Stack Developer (Full time Job)

Job Category: MERN Stack DevelopmentJob Type: PaidJob Location: On-Site ( GIDC, Kalol, Gandhinagar, Gujarat ) About Purezza Technologies Purezza Technologies is a fast-growing and forward-thinking te ...

Full Stack Developer AI Assisted Development

AI-assisted development is becoming a normal part of modern software engineering. This role is for a developer who wants to work that way, not just read about it.You will join a software business building technology for the eCommerce and logistics sector, where AI-assisted and agentic coding practices ...

AI First Full Stack Product Builder

Lindar is seeking a Full Stack Product Builder to join their innovative team. In this role, you will take complete ownership of product development from problem definition to production, working with AI tools to quickly develop prototypes and a stable product. As a builder at Lindar, your experience in ...

Full Stack Growth Builder at Joinfleek.com

Job Title Full-Stack Growth Builder, Retention & Lifecycle Company Description Joinfleek.com – Series B fashion-tech marketplace backed by a16z and Y Combinator Job Description Join a high-velocity team reinventing the secondhand supply chain. As a Full-Stack G ...

Full Stack Developer AI Assisted Development

AI-assisted development is becoming a normal part of modern software engineering. This role is for a developer who wants to work that way, not just read about it.You will join a software business building technology for the eCommerce and logistics sector, where AI-assisted and agentic coding practices ...

Creative Technologist / Creative Full Stack Developer

We are recruiting for a Creative Technologist / Creative Full-Stack Developer (Permanent role and 12 month Fixed Term contract)About NestaWe are Nesta, the UK’s innovation agency for social good. We design, test and scale solutions to society’s biggest problems. Our three missions ...

Creative Technologist / Creative Full Stack Developer

We are recruiting for a Creative Technologist / Creative Full-Stack Developer (Permanent role and 12 month Fixed Term contract)About NestaWe are Nesta, the UK’s innovation agency for social good. We design, test and scale solutions to society’s biggest problems. Our three missions ...

Contract Full Stack Developer (AI/ML)

Contract Full Stack Developer (AI/LLM Focus)Day Rate: £ - £/day (Flexible Depending on Experience)Initial Term: 6 months (Possibility of Extension)Location: Windsor, UK (Hybrid)Opportunity OverviewWe're seeking a full stack developer with s ...

Full Stack PHP Symfony2 Developer — London

Difrent is seeking an experienced Full Stack developer with PHP Symfony2/3 skills to join their team in London. You will work on projects that are both technologically and aesthetically impressive, managing complex digital projects from conception to completion. The ideal candidate will possess strong ...

Remote Senior .NET Full Stack Developer

Ashdown Group, a well-established family-owned technology company, is seeking a Senior Full Stack Web Developer. This role offers the flexibility to work from home while being integrated with a small, agile team. The successful candidate will modernize critical websites using Microsoft technologies and ...

Senior Full Stack Magento 2 Developer

Salary: £50,000 - 65,000 per year Requirements Strong commercial Magento 2 experience, with at least 5 years experience required Strong proficiency in PHP, MySQL, OOP and Magento's ORM Ability to develop Magento modules and customise themes Expe ...

Senior Full Stack Developer — Healthcare Transformation

NHS is seeking a Band 7 Senior Developer to enhance its core clinical workforce management platform. This role involves building scalable solutions using React, TypeScript, and cloud technologies. The candidate will collaborate closely with cross-functional teams to translate business requirements into ...

Hybrid .NET Developer — Umbraco & Full Stack

Design Portfolio is searching for a Full-Stack .NET/Umbraco Developer to join their team in the United Kingdom. The role involves developing web applications and managing content management solutions with Umbraco and .NET technology. You will take ownership of features and work collaboratively in a flexible h ...

Full Stack Developer AI Assisted Development

AI-assisted development is becoming a normal part of modern software engineering. This role is for a developer who wants to work that way, not just read about it. You will join a software business building technology for the eCommerce and logistics sector, where AI-assisted and agentic coding practices are a ...

Senior Full stack Developer Birmingham Perm,

Senior Full Stack DeveloperLocation: Birmingham (Onsite)Salary: £60,000 - £80,000 DOEJob Type: Permanent, Full-TimeSenior Developer - Platform Stability, Performance & Engineering ExcellenceWe're looking for an experienced Senior Developer who enjoys solving complex technical ...

Passionate Computing Teacher Wanted Join a... in Wolverhampton Perham Education Partnership

Passionate Computing Teacher Wanted Location: Wolverhampton, United Kingdom Posted 12 months ago This is a job posted by our partner Jooble. Tech Stack Python Java JavaScript Responsibilities and Qualifications Previous ex ...

Senior Java Engineer Customer Fulfilment

About the Role We are building and rolling out a next generation, dynamic, scalable and resilient Fulfilment Platform for Tesco to support both manual and robotic‑powered automated fulfilment operations across all customer order fulfilment locations. The platform, Fulfilment Point System (FPS), e ...

Senior Lead Software Engineer Python and Java Equity Derivatives and Pricing Front Office Quant Developer

Join us and take your software engineering career to new heights. You’ll have the opportunity to design and deliver market-leading technology products that shape the future of financial services. At . Morgan, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your exper ...

Senior AI Driven Software Engineer: Multi Agent Coding

Mark43 is approved to hire in Canada, the UK, and 40 U.S states , including AZ, CA-excluding San Francisco, CO, CT, DC, FL, GA, IA, IL, IN, KS, MA, MD, ME, MI, MO, NE, NJ, NM, NY, NC, OH, OR, PA, SC, TN, TX, UT, VA, VT, WA, and WI. Before applying to a remote role, please ensure that ...

AI Driven Lead Software Engineer Real Time Trading Platform

JPMorgan Chase & Co. is seeking a Lead Software Engineer in Prime Finance Services to enhance trusted technology products. You will lead innovative, AI-driven solutions for our trading platform, collaborating with global teams. The ideal candidate should have expertise in Java/Spring, GenAI usage, and ...

Senior Software Engineer Campaigns

Requirements 6+ years of experience as a Software Engineer Strong technical expertise with a proven track record of building products that people love and use daily Full-stack development experience, with a primary focus on backend Experience developing large-scale, ...

Junior Front End Engineer (React) Remote & Mentorship

Role : Junior JavaScript Engineer Client: Fintech Start-Up (Trading) Compensation: Up to £100,000 + Bonus Location: LondonOverview My client is a rapidly scaling fintech s ...

Senior Full Stack Engineer: Build AI Driven Platform End to End

Pairwise is seeking a Senior Full-Stack Engineer to join their dynamic team in Greater London. This full-time role involves architects and shipping core products using Python/Django and React. Candidates should have over 5 years of engineering experience with a strong focus on applied AI. Join a mission-driven c ...

Senior Software Engineer Autonomous Maritime Systems (Hybrid)

A leading engineering firm in the UK is seeking an experienced Software Engineer to develop advanced software solutions for autonomous systems in marine and defence technology. You will lead software design and collaborate with multidisciplinary teams, ensuring integration and delivery of projects. Applicants sh ...

Global IT Software Engineer Senior Manager

Salary Salary: £105,000 - 130,000 per year Requirements A bachelors degree in Computer Science, Engineering, or a related field. Advanced degrees are a plus. 6-8 years of professional experience in software development or IT operations, with increasing respons ...

Staff Software Engineer BPL

Join us as an experienced Staff Software Engineer in our London‑based Payments Acquiring business, where you will lead technical delivery and help shape development standards. Purpose of the role Design, develop, and improve software across the platform using industry‑standard languages, ...

Remote Lead Software Engineer for Climate Platform

A leading technology firm in the UK is seeking a Lead Software Engineer to take full technical ownership of a high-impact platform serving the public sector. You will lead the architecture and delivery of a reporting platform, ensuring high standards in accessibility, security, and performance. This role require ...

Lead AI/ML Platform Engineer

A global financial services leader seeks a Lead Software Engineer to enhance AI/ML data platforms. You will develop software applications and mentor junior engineers, driving innovation in a diverse team. The role requires strong full stack development and Python skills, along with experience in Infrastructure a ...

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