1,360,683+ 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 Director, Global Head of Solution Development & AI Platforms

What success looks like in this role: POSITION SUMMARYUnisys is an AI-first company — and this role is at the heart of that transformation. The Senior Director, Global Head of Solution Development & AI Platforms is a deeply technical, hands-on engineering leader responsible for arc ...

Senior Director, Global Head of Solution Development & AI Platforms

What success looks like in this role: POSITION SUMMARYUnisys is an AI-first company — and this role is at the heart of that transformation. The Senior Director, Global Head of Solution Development & AI Platforms is a deeply technical, hands-on engineering leader responsible for arc ...

Staff AI Software Engineer AI Engineering Platform

All the Details We're changing the way we do things, and putting industry leading innovation at the heart of how we operate; we need a stellar engineering team to make it happen. You'll be joining one of the most iconic brands in the UK on its most exciting cycle yet. We're more integrated and pr ...

Front End Developer

Front-End Developer – Blackburn - Hybrid working Full Stack, Developer, React, TypeScript, JavaScript, Blackburn, Lancashire, North West This advanced solutions provider requires a driven and self-motivated Front-End Developer to join their busy technical team and motivate those around them. They ...

Mid/Senior Product Engineer

Mid/Senior Product Engineer | AI-Native Product | London (Hybrid) | £50million + Series B Is now the right time to join a company where AI isn't just part of the product, it's how the engineering team builds? This fast-growing AI startup has gone from £300k ARR to over £10m ARR i ...

Director of Software 800

Director of Software We are seeking a Director of Software located in either of our US (Colorado) or UK (Cambridge or London) offices. The role will drive the overarching software strategy for Quantinuum, leading teams of software engineers, researchers, and developers to create a high-perfo ...

Project/Programme Lead Major Programmes Full time

Company DescriptionAt Turner & Townsend we’re passionate about making the difference. That means delivering better outcomes for our clients, helping our people to realise their potential, and doing our part to create a prosperous society.Every day we help our major global cl ...

Senior Risk Lead Energy Sector Full time

Company DescriptionAt Turner & Townsend we’re passionate about making the difference – we are committed to delivering Sustainable Net Zero outcomes for our clients, helping our people to realize their potential, and doing our part to create a prosperous society. The world is ...

Project/Programme Lead Major Programmes Full time

Company DescriptionAt Turner & Townsend we’re passionate about making the difference. That means delivering better outcomes for our clients, helping our people to realise their potential, and doing our part to create a prosperous society.Every day we help our major global cl ...

Planning Lead Energy & Natural Resources Full time

Company DescriptionAt Turner & Townsend we’re passionate about making the difference. That means delivering better outcomes for our clients, helping our people to realize their potential, and doing our part to create a prosperous society.Every day we help our major global cli ...

Software Development Team Leader

Experienced Software Development Team Leader We are seeking a dynamic and experienced Software Development Team Leader to lead our talented team in delivering top‑notch solutions to our clients. As a key player in our organisation, you will blend hands‑on development with leadership responsibilit ...

Software Development Team Leader

Experienced Software Development Team LeaderMUST HAVE PHP EXPERIENCEWe are seeking a dynamic and experienced Software Development Team Leader to lead our talented team in delivering top-notch solutions to our clients. As a key player in our organisation, you will blend hands-on development with l ...

Senior Fullstack Engineer Admin/AI

Senior Fullstack Engineer (Admin & AI Enablement) Team: Admin & AI Enablement Location: Remote / London / Hybrid (TBD) This role will be a key part of building Midnite’s new internal back office platform and shaping how internal tools evolve across the business. Yo ...

Backend Software Engineer Python Data R&D

Backend Software Engineer / Developer (Python Data R&D) Cambridge onsite to £55kWould you like to work on Greenfield projects at the cutting edge of medical technology?You could be joining a well funded start-up, collaborating with scientists and other engineers to develop sensing and ima ...

Staff Engineer – GPU Driver & System Software

Category Chip Design Location Cambourne Experience More than 4 Years Work Expe. Job Description MediaTek Incorporated is a global fabless semiconductor company that enables nearly 2 billion connected devices a year. We are a market leader in d ...

.NET Developer

.NET Developer, .NET 9, C#, Agile – Hull(Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer)Our client is a global innovator who builds software products and apps that ar ...

.NET Developer

.NET Developer – Global Sports Company – Liverpool(Tech stack: .NET Developer, .NET 9, C#, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer)Our client is a global sports brand that operates in over 115 countries worldwide. They ...

.NET Developer

.NET Developer, .NET 9, C#, Agile – Hull(Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, .NET Developer)Our client is a global innovator who builds software products and apps that ar ...

Research Engineer (FICCO)

Research Engineer (FICCO)Job LocationLondonEmployment typeRegularDepartmentTechnologyTargeted Start DateImmediateDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the wo ...

Software Engineer III Back end Engineer Chase UK

At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of c ...

Software Engineer III Automation Engineer Global Liquidity Platform

You’re ready to gain the skills and experience needed to grow within your role and advance your career — and we have the perfect software engineering opportunity for you. As a Test Automation Engineer at JPMorgan Chase within the Global Liquidity and Account Solutions team in Payments Techn ...

Frontend Engineer

Data & AI | Technology & Engineering Leader About Us: We’re a VC-backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate and a clear vision. Our missio ...

Graduate Software Engineer (Newcastle On site)

Graduate Software Engineer (55,000 – 75,000) We’re partnered with a talent dense specialist consultancy based out of Newcastle that are looking to grow their Software Engineering team. They’re a spin‑out of a major hedge fund, and specialise in delivering on projects which require top perce ...

Senior/ Lead Mobile Applications Developer

This is a remote role with some monthly travel to Glasgow, Scotland. Essential Duties and Responsibilities Provide technical and team leadership in the design, implementation, and testing of high-performance, high-quality video communication applications for Android and iOS operatin ...

Senior Application Security Engineer (Remote United Kingdom)

JOB DESCRIPTION SummaryYelp engineering culture is driven by our : we’re a cooperative team that values individual authenticity and encourages creative solutions to problems. All new engineers deploy working code their first week, and we strive to broaden individual impact with support fr ...

Senior Application Security Engineer (Remote United Kingdom)

JOB DESCRIPTION SummaryYelp engineering culture is driven by our : we’re a cooperative team that values individual authenticity and encourages creative solutions to problems. All new engineers deploy working code their first week, and we strive to broaden individual impact with support fr ...

Production Engineer Vice President

The Production Engineer is a pivotal role within Citi's Technology organisation, responsible for designing, building, and operating the intelligent systems that underpin our global production environment. This is an engineering-first position at the intersection of software craftsmanship, AI-native development, ...

Senior Software Engineer Product & Engineering London / UK remote

At GoodFit, we help our customers unlock their next stages of growth with highly actionable & relevant data. Without a need to speed thousands of hours on manual research, B2B companies use GoodFit's data engine to identify their next opportunities, understand their customers & generate demand. Our pla ...

Software Development Engineer , Rufus Detail Page

Software Development Engineer , Rufus Detail Page Job ID: | Amazon Development Centre (London) Limited Rufus is a generative AI-powered shopping assistant in the Amazon Shopping app designed to help answer a variety of shopping-related questions. Rufus makes it easy for customers to fin ...

Forward Deployed Engineer (FDE)

is the applied AI research company building formal verification for post-human software development. Correctness guarantees for software developed by humans and machines are n ...

Experienced Backend Java Developers

**_Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we bu ...

Mid Level Java Developer

Mid-Level Java Developer Date: Jun 27, 2026 Location: Abingdon, LND, GB, OX14 4RW We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent ...

Mid Level Java Developer

Mid-Level Java Developer Date: Jun 27, 2026 Location: Abingdon, LND, GB, OX14 4RW We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent ...

Staff Engineer DevTest Tools

An Amazing Career Opportunity for a Staff Engineer - DevTest Tools! Location: Cardiff, UK Job ID: 47202 As a DevTest Staff Engineer in Cardiff, you will drive the team formation, implementation and maintenance of a robust CI/CD pipeline within HID PACS. This is a wide-rangi ...

IT Support Engineer

IT Support Engineer Manchester 3 months My client is looking for an IT Support Engineer to manage BAU workload and provide 1st and 2nd line support. The ideal candidate will be personable with a professional passion for providing high quality IT support services. Key responsi ...

Senior Frontend Engineer

Helsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards. As democracies, we believe we have a special responsibility to be thoughtful a ...

Senior Front End/Lead Developer

Senior Front End / Lead Developer The Company: At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to o ...

Senior Front End/Lead Developer

Senior Front End / Lead Developer The Company: At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to o ...

C# Software Developer X 2

C# Software Developer – Exciting Opportunity with a Growing Tech Company Are you an experienced .NET and Azure developer looking for an opportunity to lead exciting projects in Web, Desktop, and Cloud development? Our client, a well-established software development company, is expanding i ...

C# Software Developer X 2

C# Software Developer – Exciting Opportunity with a Growing Tech Company Are you an experienced .NET and Azure developer looking for an opportunity to lead exciting projects in Web, Desktop, and Cloud development? Our client, a well-established software development company, is expanding i ...

.NET Developer

.NET Developer – Europe’s Largest Radio Station Group – Cheshunt(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer, Architect, ...

Quality Assurance Engineer

Quality Assurance Engineer Remote or London, Permanent, full-time, Competitive salary About the role You'll own quality across the product and platform, making sure what ships works as expected, performs under load, and is reliable before customers see it. The team uses AI agents ...

.NET Developer

.NET Developer – Europe’s Largest Radio Station Group – Cheshunt(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer, Architect, ...

.NET Developer

.NET Developer – Europe’s Largest Radio Station Group – Salisbury(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer, Architect ...

.NET Developer

.NET Developer, C#, .NET 9, Angular 19, Web API 2 – Newcastle(Tech stack: .NET Developer, .NET 9, C#, Web API 2, Entity Framework, Microservices, Azure, Programmer, Full Stack Engineer, Architect, .NET Developer)Have you ever thought about getting from London to Edinburgh in 30 minute ...

Automation Test Engineer

Java Automation Test EngineerContract: 12‑month Fixed Term Contract (Potential Permanent Conversion)Locations: NewcastleExperience Level: 1-3 Years About the Opportunity</h ...

Automation Test Engineer

Java Automation Test EngineerContract: 12‑month Fixed Term Contract (Potential Permanent Conversion)Locations: NewcastleExperience Level: 1-3 Years About the Opportunity</h ...

Senior Software Engineer, Core Experiences Cardiff, United Kingdom

Senior Software Engineer, Core Experiences – Cardiff, United Kingdom Cardiff, United Kingdom Mission Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone. We absorb it all and let you listen t ...

Senior Compiler Engineer

Cambridge, UK | Full-time | Permanent | HybridSalary: £70,000 to £90,000, DOE We will also consider part‑time applications for this role. Please indicate your preferred working schedule in your cover letter. We will consider a range of levels of experience, so apply for the role that best matc ...

Principal Software Consultant

Our client is a UK-based technology and innovation company that develops advanced software, cyber security, and digital solutions for complex and mission-critical environments. Working across research, product development, and consultancy, the company helps organisations solve challenging technical problem ...

🚀 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