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 Software Engineer

Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic techn ...

Senior Software Engineer

Every day, Global Payments makes it possible for millions of people to move money between buyers and sellers using our payments solutions for credit, debit, prepaid and merchant services. Our worldwide team helps over 3 million companies, more than 1,300 financial institutions and over 600 million cardholders gr ...

Senior Software Engineer

Senior Software Engineer – Abingdon, Oxfordshire – Permanent Hybrid 3 days on site, 2 days remote Requirements 5+ years of professional software engineering building & shipping complex, production‑grade applications — not solely scripting, prototyping, or research. < ...

Senior Software Engineer

The Opportunity We're looking for a Software Engineers and Senior Software Engineers with strong software development experience across the full development lifecycle to design and develop the software that powers advanced electro-optical systems used in Air Defence, cUAS and Surveillance and Tar ...

Senior Software Engineer

We are seeking a Senior Software Engineer with strong fundamentals and self-management skills to join us at a rapid growth stage and help us serve an ever-increasing customer base.A successful applicant will work on our flagship product BetterLetter – AI tool helping practices decrease their admin bur ...

Senior Software Engineer

Our client, a leading global consultancy, is seeking an experienced Senior Software Developer to join a high‑profile programme with a Tier 1 banking client in London This is an exciting opportunity to play a key role in the development of a strategic Risk Weighted Assets (RWA) platform, working at ...

Principal Software Engineer

Job Summary We are seeking a highly experienced Principal Software Engineer to lead the modernisation of our COBOL development ecosystem and Enterprise Server application replatforming products. The role is hands‑on, strategic, and involves designing, building, and evolving mission‑critical infras ...

C# Software Engineer

We have an exciting opportunity for a proactive and passionate C# software developer to join our Weapons System Simulation and Experimentation (WSSE) team! Salary : Up to £60,000, depending on experience Dynamic (hybrid) working : 2- 3 days per week on-site due to workload classifi ...

Software Infrastructure Engineer

About Graphcore Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. < ...

Platform Software Engineer

Platform Software Engineer Department: Tech - Model & Platform Engineering Employment Type: Permanent - Full Time Location: Oxford, UK Description Aurora helps governments, investors, and utilities make billion‑dollar decisions on the jour ...

Helix Software Engineer

iSAM is an innovative, financial technology firm specialising in quantitative trading, comprised of iSAM Funds and iSAM Securities. iSAM Securities regulated by the FCA, SFC, and CIMA registered, is a leading algorithmic trading firm and trusted electronic market maker, providing liquidity, technol ...

Software Integration Engineer

About Us DSL-Datastor Group is a leading provider of advanced automation and control solutions, trusted by nearly 200 manufacturing sites worldwide, ~70% of which are in the UK & Ireland, ~20% of which are in North America, and ~10% of which are spread across the rest of the world. While we are a ...

C++ Software Engineer

Overview C++ Software Engineer role at TieTalent remains open with a World Class Defence Organisation based in Bristol. We are looking to recruit 3x C++ Software Engineer subcontractors on an initial 12 month contract, with a very likely extension. The role is onsite 4 days per wee ...

Principal Software Engineer

2 days ago Be among the first 25 applicants This range is provided by Holt Executive Ltd. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Holt Executive Ltd Technical Headhunt ...

Hardware Software Engineer

Hardware engineer - £400 per day - Outside IR35 - 6 Months You'll be working on a video streaming system, so any experience with this would be useful. Tech: C, C++, Linux and any experience with microcontrollers. Location: Mainly remote but odd visits to Manchester may be ...

Software Engineer (Compilers)

Overview At Universal Quantum , we aim to make the world a better place by engineering the future of computing. Together, we are creating truly impactful quantum computers. Our machines will be capable of solving problems until now considered impossible, with applications ranging across a b ...

Software Application Engineer

Overview An established technology company based in Colchester is looking for an experienced Applications Developer to support a range of embedded, GUI-driven software projects. Working within a multidisciplinary engineering team, you will focus on delivering high-quality application featur ...

Software Engineer (C++)

At CGI, we’re redefining what’s possible in the Space, Defence, and Intelligence sector delivering secure, mission‑critical systems that protect the UK and drive national capability. As a C++ Software Engineer, you’ll help design and implement next‑generation solutions that enable operational excell ...

Staff Software Engineer

Harness is a high-growth company that is disrupting the software delivery market. Our mission is to enable the 30 million software developers in the world to deliver code to their users reliably, efficiently, securely and quickly, increasing customers’ pace of innovation while improving the developer exper ...

Principal Software Engineer

Based in Oxford, you will join a highly experienced and growing Software Development team building innovative, cloud-based software that supports major decisions in the global energy transition. Our platform is built on AWS using a microservices architecture, with back-end services implemented in T ...

Staff Software Engineer

At TixTrack, we support our clients by creating superior ticketing solutions for performing arts and cultural institutions through a combination of modern technology, beautifully simple design, and the art of listening. Founded in Los Angeles, we are a small, but growing team of hardworking, highly ...

Staff Software Engineer

Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. As part of ...

Software Engineer Frontend

Senior Software Engineer, Payments & Blockchain Team We are currently seeking an experienced Senior Software Engineer to join our growing Payments & Blockchain team to be focused on our payment systems. The Payments & Blockchain team is responsible for the first and last mile of every dollar (dig ...

Operational Software Engineer

Our Capability Development team develops bespoke software for our clients in the Cyber Security domain. We may be building assured software that prioritises engineering rigour and reliability, rapid cyber solutions that stitch together tooling for high‑impact results, or blended operational systems that ad ...

Software Engineer London

About Flow Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor. About the role Flow is seeking softwar ...

Principal Software Engineer

hackajob is collaborating with loveholidays to connect them with exceptional professionals for this role. Why Technology at loveholidays? At loveholidays – we trailblaze together . We’re on a mission to open the world to everyone, giving our customers’ unlimited cho ...

Chief Software Engineer

Job Overview Salary Range: £80,000 - £90,000. Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptio ...

C# Software Engineer

C# Software Engineer needed in Christchurch to join our client, an established defence & security firm working on cutting edge systems within the UK defence industry. You will join an existing 45-strong team that provides support to a fully integrated command and control system for the MoD. This exc ...

Software Integration Engineer

Software Integration EngineerLocation: Bristol, UKApproach: Hybrid Remote, typically 2-3 days per week in the officeContract: Permanent, full-timeRosenxt is revolutionising subsea robotics and autonomous systems, and we’re building a world-class engineering team at our Bristol location to drive this innovation f ...

Software Engineer (C++)

Job Overview At CGI, you’ll be part of a trusted team that values innovation, ownership, and collaboration. As a C++ Software Engineer, you’ll help design and implement next‑generation solutions that enable operational excellence and resilience in the most demanding environments. Benefits ...

Senior Software Engineer

This is a great opportunity for an experienced full stack engineer to join our growing engineering team. You'll report to the CTO and work alongside the founders and the rest of our small engineering team. Role You'll build a SaaS application using cutting edge technology (React, Ru ...

Senior Software Engineer

MCS Group is proud to be partnering again with one of the UK and Ireland's most exciting technology companies in their search for a Senior Software Engineer. The company's product suite sits at the forefront of AI and this firm is truly in growth mode. This is a truly unique opportunity for an experienc ...

Senior Software Engineer

Hybrid: 2 days per week in our Tower Bridge office Tempcover Tempcover are at the forefront of the fast‑growing world of short‑term insurance. Our mission is to make car insurance flexible, quick, and easy for drivers. We’ve sold millions of policies that have helped drivers get where they ...

Senior Software Engineer

Join Kainos and Shape the Future At Kainos, we’re problem solvers, innovators, and collaborators – driven by a shared mission to create real impact. Whether we’re transforming digital services for millions or delivering cutting‑edge Workday solutions, we do it together. We believe in a pe ...

Senior Software Engineer

Senior Full Stack Developer – AI Company Salary: up to £100,000 Opus has partnered with a client in Essex who are looking for a Full Stack Developer to join the team. They’re an AI company with their software being used in Universities all over the UK to help students and teachers ...

Senior Software Engineer

Our world‑leading Time & Frequency department is seeking a Senior Software Engineer with expertise in Unix/Linux software development and containerisation. This is an exceptional opportunity to join the global authority in precision timing at a defining moment for UK digital infrastructure. <p ...

Senior Software Engineer

Maker&Son is one of the world’s fastest-growing luxury furniture businesses. We design and make the world's most comfortable chairs, sofas, and beds, entirely from natural materials. We’re an ambitious, young company, with a vision to become a global brand, changing the face of luxury home retail. <h3 ...

Ardupilot Software Engineer

Ardupilot Software Engineer Vacancy Reference: CLA- 415 Position: Full-time Location: Salisbury, Wiltshire, UK Salary: £50,000 - £60,000 At Callen-Lenz, we are expanding the limits of what is possible. We specialise in crewed and uncrewed aircraft operations and te ...

Flight Software Engineer

Exciting Opportunity: Flight Software Engineer (Perm/Fixed Term) Our Client, a pioneering leader in the space industry, is shaping the future of space exploration and satellite technology. Known for their cutting‑edge approach to satellite development and innovative space solutions, they foster a c ...

Principal Software Engineer

Salary: Up to £110,000 + Bonus & Benefits We're looking for a Principal Software Engineer to join a global technology business whose platforms underpin consumer experiences used by millions of people every day. This is an established, scaled business with a genuinely global reach and this ro ...

Principal Software Engineer

As part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serves millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand software engineer ...

Software Engineer Solana

The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’ platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial in ...

Software Engineer Intern

Job Description Job Purpose This is an exciting opportunity to enhance your existing skillset and gain technical knowledge and experience by working alongside highly skilled & experienced senior engineers. Throughout the placement, you will be delivering a series of work packages a ...

Staff Software Engineer

Company Description At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 bran ...

Software Engineer/PMO

Quadriga is a leading international provider of guest technology managed services that enhances engagement, generates additional revenue, and fuels value for hotels through a continued focus on the global customer experience. Quadriga is part of the Exceptional Innovation (EI) family of companies and affil ...

Staff Software Engineer

Location: London, UK - Hybrid (3 days from the office) Why Deliveroo? We're building the definitive online food company, transforming the way the world eats by making hyper‑local food more convenient and accessible. We obsess about building the future of food, whilst using our network as ...

Controls Software Engineer

Controls Software Engineer Up to 46k + car allowance Nottingham (hybrid working, 2 days in the office) My client is seeking a highly skilled Controls Software Engineer to join their software team. The ideal candidate will have extensive experience in the full projec ...

Software Engineer (Backend)

Role Backend Engineer (Java) Location London (Hybrid – 2 days in the London Office) Reports to Engineering Manager Company Overview Rightmove is the UK’s largest choice of properties and a go-to destination for millions of people planning their next ...

Principal Software Engineer

Overview Principal Software Engineer Location: FarehamPermanent – Full TimeHybrid/Flexi Working£70,000 - £90,000 Our client is seeking a Principal Software Engineer to lead the development of advanced autonomy capabilities for unmanned systems. This hands‑on, R& ...

C++ Software Engineer

An award-winning Technology Company seeks a C++ Software Engineer with proven industrial experience of object-orientated programming and design patterns to join their expanding team. You'll work across the full development lifecycle with a focus on efficient algorithms, robust system design and mai ...

🚀 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