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

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Senior Full Stack Engineer — Cloud & On Call Delivery

Burendo Limited. in Leeds is seeking a Senior Full Stack Engineer to support and enhance applications. You will ensure the reliability of business-critical systems and contribute to ongoing improvements and innovation. The ideal candidate has experience in managed service environments and a strong unde ...

Senior Full Stack JS Engineer — Hybrid, Impact & Growth

A tech scale-up company in London is looking for a Senior Software Engineer. In this role, you will work on complex systems and be part of a diverse team. The position offers a competitive salary of up to £100k, 25 days of holiday, and hybrid work options. Candidates should have strong web development knowledge ...

Remote Full Stack Engineer: Impactful Tech for Good

A tech-focused recruitment company is seeking a Full-Stack Developer to join a mission-oriented team. The role involves delivering complex, high-quality solutions while improving production systems. Candidates should have strong experience in C# .Net, a background in Agile methodologies, and be comfortable with ...

Full Stack Engineer Hybrid EM | Tech4Good | EV charging

A mission-driven tech organization based in the East Midlands is seeking a Full Stack Engineer. You will develop applications using React and TypeScript, ensuring high engineering standards and working within a collaborative team environment. This role offers a hybrid work model with impactful projects focused o ...

Full Stack .NET Engineer (Azure, MAUI) – Hybrid UK

A leading Financial Services company is seeking a .Net focused Full-Stack Developer to join their team in Maidstone. This role involves designing and developing business applications using modern technologies like C# and Azure, along with mentoring new team members. The ideal candidate will thrive in an Agile en ...

Full Stack Fintech Engineer (TypeScript) Real Time Platform

Kalpa Group is seeking a full-stack engineer in Central London to help develop an innovative fintech platform. This role focuses on integrating investment operations and reporting into a cohesive product ecosystem. The ideal candidate should have strong TypeScript skills, familiarity with React, and en ...

Hybrid VP Full Stack Engineer — Equities Tech Innovator

Citi is seeking a Vice President (VP) level developer to join the Strategic Equity Solutions team in Greater London. You'll design and develop high-performance software solutions that enhance trader workflow. With a focus on collaboration, you'll work closely with business stakeholders and contribute to innov ...

Senior Full Stack Engineer Build Scalable eCommerce Infra

Swap, located in the United Kingdom, is seeking a Full Stack Engineer to join our growing team. In this pivotal role, you will help shape the future of our company by writing robust and maintainable code while working with a dynamic team focused on delivering cutting-edge solutions. The ideal candidate ...

Senior Backend‑Heavy Full‑Stack Engineer (Hybrid, London)

Preply, based in London, is seeking a Senior II Full-Stack Engineer who will focus primarily on backend development using Python/Django while also contributing to frontend tasks in React. In this hybrid role, you will lead technical initiatives and work collaboratively with cross-functional teams to deliver m ...

Senior II Full Stack Engineer (back end heavy)

Senior II Full-Stack Engineer (back-end heavy) Location London Employment Type Full time Location Type Hybrid Department Engineering We power people’s progress. At Preply, we’re all about creating life-changing lear ...

Senior Full Stack Engineer for AI Robotics Platform

Humanoid is seeking a passionate Senior Full Stack Engineer to join our team in London, focused on developing advanced humanoid robots. This role involves designing cloud platforms for managing robotic fleets while ensuring robust backend services. The ideal candidate should have expertise in React, AP ...

Senior Full Stack Engineer AI Health Platforms (Remote)

Envision Pharma Group seeks a Senior Full Stack Engineer in Cambridge to lead the design and development of scalable applications driving AI solutions. You will work with cross-functional teams, utilizing modern JavaScript frameworks and Python to optimize performance and ensure system reliability. Thi ...

Full Stack Angular Engineer for Web Banking Solutions

Avaloq AG is seeking a skilled Full Stack Angular Software Engineer to join their team in Edinburgh. In this role, you will design, build, and maintain scalable web applications, collaborating closely with Business Analysts, UX designers, and engineers to deliver user-focused solutions. You will have responsi ...

Hybrid Full Stack Engineer: Gen AI for EdTech

Sivara GmbH is seeking a Full Stack Engineer for an innovative Ed-Tech project, offering up to £475 per day on a hybrid basis near Stratford, London. The ideal candidate will have strong experience in full-stack development, proficiency in Python and React, and a passion for AI-driven applications. Thi ...

Full Stack C#/.NET Engineer Enterprise Tech Platform

A leading tech firm in the UK seeks a Full Stack C# Developer for its Enterprise team. You will design and maintain high-quality C#/.NET solutions and build scalable services that support multiple business streams. The ideal candidate has strong experience in C# and AWS, along with the ability to work in a fast- ...

AI Driven Full Stack Engineer for FinTech Growth

Burns Sheehan is seeking a Full Stack Engineer in Manchester to contribute to a vital modernisation programme in a leading FinTech. The role involves designing and maintaining full-stack applications and collaborating within agile teams. Ideal candidates will possess familiarity with Agile methodologie ...

Full Stack ML/GenAI Engineer — Hybrid EdTech Role

Intec Select is seeking a skilled full-stack developer to join a pioneering project for language learning and assessment based in Greater London. The ideal candidate will have experience developing Chat/Messaging applications and a background in AI components. This contract role offers pay up to £475 P ...

Full Stack CI/CD Engineer with IoT & Observability

Sivara GmbH is looking for a Full-Stack Developer to work in our London office. The role involves designing and maintaining full-stack applications while collaborating closely with the engineering team. Candidates should have experience in Python, C#, and CI/CD pipelines. This position offers a salary ...

West London Hybrid Full Stack Engineer – Identity/Commerce

CBSbutler Holdings Limited trading as CBSbutler is looking for a Full Stack Engineer to join their team in West London. The role involves delivering digital transformation for a prominent media company with a focus on enhancing customer experiences across various platforms. Candidates will work on sign ...

Senior Full Stack Engineer – AI Driven Logistics Platform

慨正橡扯 is seeking a Full Stack Engineer to join the M&S Software Engineering team. You will develop and implement robust software solutions to serve millions of customers, focusing on quality and scalability. This role involves mentoring others, providing technical leadership, and ensuring best practices ...

Full Stack GIS Engineer for Public Sector Impact

A digital transformation consultancy in Altrincham is seeking a Full Stack GIS Developer. You will work on innovative digital solutions that impact public services, collaborating with a multidisciplinary team to develop scalable applications. Candidates should possess strong skills in .NET, Java, or Python and h ...

Full Stack Engineer: Angular/.NET & AI‑Driven Dev

Allan Webb Ltd in Stonehouse is looking for a skilled Software Engineer to join our Data Solutions Programming team. The ideal candidate should be experienced in full-stack development, proficient in Angular for front-end and .NET C# for back-end development, with SQL database management experience being high ...

Full Stack Product Engineer — AI Powered Rental Platform

The Flex is seeking a Full-Stack Product Engineer to build and automate innovative solutions in the real estate sector. In this role, you will transform challenges into impactful software, working closely with founders to create user-centric applications. You'll also have the opportunity to implement AI-power ...

Full Stack AI Engineer: Azure & DevOps for Production

Lorien is seeking a Full Stack AI Engineer for an initial 3-6 month contract in Theale, England. This hybrid role involves enhancing AI-powered platforms on Microsoft Azure and developing production-ready systems in a fast-paced agile environment. The ideal candidate will have full stack engineering ex ...

Senior Full Stack Data Engineer — ML/AI & FinTech

Apprize Technology Solutions is looking for a skilled developer to undertake full-stack development with a focus on machine learning and AI applications. Your responsibilities include collaborating with established teams and ensuring quality code delivery. The ideal candidate has over 5 years of experi ...

Full Stack Product Engineer — Build fast, delight users

A forward-thinking B2B support company in Greater London is seeking an individual contributor to build and enhance their customer support platform. This role involves developing both frontend and backend solutions while collaborating closely with customers to resolve issues. Ideal candidates are initiative-drive ...

Founding Full Stack Product Engineer AI Native Cybersecurity

C&D Talent Advisory - Academy is seeking a Mid-Senior Full-Stack Engineer to join a pioneering team working on AI-native cybersecurity solutions. The role involves end-to-end product ownership, building modern web applications using TypeScript and React, and integrating AI capabilities. Candidates shou ...

Principal Full Stack Engineer – AI‑Driven SaaS Leader

Sivara GmbH, a high-growth SaaS business in the UK, is seeking an experienced Principal or Lead Engineer to shape the future of customer-facing platforms. This hands-on leadership role emphasizes collaboration, innovation, and technical influence within a mature engineering environment. The company off ...

Senior Full Stack Engineer (Django/Python) – SC Cleared

Sivara GmbH is seeking an experienced Senior Full Stack Developer to join the team. The role is hybrid and supports locations such as London, Manchester, Birmingham, Sunderland, or Belfast. Candidates must have 8-10 years of relevant experience and knowledge in Python and Django, with SC Clearance as a minimu ...

Senior Full Stack Engineer, Ecomm – 12 month contract

Games Workshop has an exciting opportunity to join us as a Full Stack Engineer on a 12‑month contract. In this role, you’ll be part of a team delivering critical customer‑facing eCommerce solutions for Games Workshop. You’ll spend time understanding the challenges you are trying to solve, creating h ...

Senior Full Stack Product Engineer | Work From Anywhere

Zinc is expanding its engineering team and is looking for a Senior Full Stack Product Engineer to shape the technical direction of its platform. You will design and deliver high-quality features while ensuring the product remains efficient and user-friendly. This role requires advanced skills in Node.j ...

Senior Full Stack Engineer AI Platform, Customer Facing

Conveo AI bv is looking for a Senior Full-Stack Engineer to develop their AI-powered platform in London or Antwerp. You'll own the lifecycle of features, actively engage with clients, and have a significant impact on product development. The ideal candidate has 6+ years in full-stack development with a ...

Staff Full Stack Engineer (TypeScript) — Scale Up Impact

A growing B2B technology firm in London is seeking a Staff Software Engineer passionate about full-stack development. Join a fast-paced team as we scale across Europe and make a significant impact in the business purchasing process. Ideal candidates have 8-10 years of experience in software engineering, especial ...

Senior TS Full Stack Engineer — Vue/Node, Remote

A leading SaaS company in the UK is seeking a Fullstack Engineer to build and ship TypeScript product features. You will own product areas from discovery to delivery, balancing speed and quality. The ideal candidate has extensive JavaScript/TypeScript experience and is comfortable working across the stack while ...

Senior Full Stack Engineer (TypeScript / Next.js) – Hybrid UK

A digital product agency is seeking a Senior Full Stack Engineer with profound experience in TypeScript, Next.js, and Node.js to work on a premium subscription platform for Times Higher Education. This role entails significant ownership of both frontend features and backend services, ensuring high quality, secur ...

Senior .NET Full Stack Engineer (Angular/Azure) Hybrid

A UK technology recruitment agency is seeking a Senior Full Stack .NET Developer with extensive experience in .NET and C#. This contract position requires collaboration with internal teams and working on Azure projects in a hybrid setup in Brighton. Ideal candidates will have a strong background in automation te ...

Senior Full Stack Engineer for Skincare Platform (Remote)

Mitra Bio Ltd is hiring a Senior Full Stack Engineer in Greater London. The successful candidate will enhance the customer experience through exceptional frontend development and product-focused UI/UX. With 5+ years of relevant experience, the role includes building high-quality web applications and driving fron ...

MedTech Full Stack Engineer: Web & Mobile Health Apps

A leading medical device company is seeking a Full Stack Developer in Cambridge, England. This role involves designing and developing scalable web and mobile applications for innovative healthcare technology. The ideal candidate will have 5+ years of experience in full-stack development, proficiency in Nuxt/Vue, ...

Senior Full Stack Engineer AI Driven Product Delivery

Francisco Partners is seeking a Senior Fullstack Engineer to accelerate the development of AI-native products and workflows. This role involves designing and maintaining high-quality software while collaborating closely with Product, Design, and AI teams. Key responsibilities include implementing scala ...

Founding Engineer (Full Stack / SRE) at Asymmetric Security

Job Title Founding Engineer (Full Stack / SRE) Salary Not Disclosed Company Description Asymmetric Security is a well-funded, early-stage AI-native Digital Forensics and Incident Response startup building automated investigation platforms designed to accelerate ...

Full Stack Web Engineer: PHP + Modern Frontend & APIs

Experience and skills we need You will have hands‑on experience with HTML 5, CSS and CSS precompilers, JavaScript & TypeScript and other modern web development core technologies. You will have worked with PHP 8 & PHP Frameworks such as Symfony, Laravel, CakePHP or Slim. It would be desirable for ...

Full Stack Engineer Fully Remote | Upto $130/hr

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo</st ...

Junior Full Stack Engineer: Build Scalable FinTech Solutions

CityGrad in Greater London is seeking a Junior Full Stack Developer to join their dynamic tech team. This role plays a crucial part in developing resilient technology solutions that drive business growth and innovation. The ideal candidate will engage in agile collaboration, interface with stakeholders ...

Full Stack Ruby on Rails Engineer | EdTech Impact

iRockweb seeks a Full Stack Ruby On Rails Software Developer to join their dynamic team in Farnborough. This role offers a chance to contribute to a platform that positively impacts children's music education through innovative software solutions. The ideal candidate will have strong skills in Ruby on ...

Full Stack Engineer AI for Industrial Ops (Equity)

Tenth Revolution Group is seeking a Full Stack Engineer to join their team in London. This role offers a unique opportunity to work at the intersection of AI and real-world industrial applications. You will be responsible for delivering AI-driven software solutions that have tangible impacts on operational si ...

Full Stack Engineer EdTech Impact & Adoption (Share Options)

An EdTech disruptor in Greater London is seeking a Full-Stack Developer to join their innovative team. You will work closely with experienced leaders to enhance their platform, focusing on product development and customer success. This role requires expertise in React and NodeJS, exceptional problem-solving skil ...

Full Stack Engineer AI Enabled – Senior Vice President

Citi is looking for a highly skilled and innovative Full Stack Engineer with a strong background in modern enterprise architecture and a passion for Artificial Intelligence. This role will be instrumental in designing, developing, and implementing robust, scalable, and AI-enabled solutions across our platform ...

Full Stack Engineer Fully Remote | Upto $130/hr

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo</st ...

GenAI Full Stack Engineer Managing Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today an ...

Senior Full stack Engineer (more product motivation vibes)

Limbic's vision is to ensure the highest quality therapy is accessible to everyone, everywhere. The way we do that is by deploying AI responsibly, using it to augment clinical care and reduce barriers to accessing therapy at scale. Limbic is already used extensively in Talking Therapies in the UK, and now expand ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

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