2,024,900+ Full Stack Software Engineer Javascript React Elixir Jobs in UK — Top Companies Hiring June 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 Front End Developer 12 months Contract

Senior Front-End Developer - 12 months - Contract Rate: £675 per dayIR35 : InsideLocation : 3 days a week in Newcastle or LeedsDuration : 12 monthsThe role : A leading Central ...

Principal .Net Developer ( AI )

Principal Software Architect / Engineering Manager Belfast | Hybrid | Permanent | Competitive + Leadership Bonus This one is different. Most architecture roles are advisory. This one has teeth. Our client is on a genuine platform transform ...

Back End Engineer London Up to £115,000 Starting Base + Exceptional Bonuses/Benefits

Back-End Engineer - London - Up to £115,000 Starting Base + Exceptional Bonuses/Benefits Join a high‑calibre engineering team building next‑generation, AI‑driven software. You’ll help turn AI‑generated code into robust, usable applications that connect seamlessly via APIs and make a real impact i ...

Staff Product Engineer

About the Role Stacks is looking for a Staff Product Engineer to set the technical standard for how we build. This is not a management role. It is an individual contributor role with outsized influence, where your decisions shape architecture, unblock teams, and define what great looks like acros ...

Chief Engineer

Job Description The Chief Engineer at Shield AI is responsible for solving complex technical challenges in deploying advanced autonomy solutions on Unmanned Aircraft Systems (UAS). As the chief authority on system architecture, design, development, risk mitigation, and product quality, the Chief ...

Cybersecurity Backend Engineer (Java/JS/Python) Cloud

MCS Group is seeking multiple Software Engineers to support a global technology organization's Cyber Security Engineering teams in Belfast. This opportunity involves designing and developing scalable backend services, APIs, and cloud-native applications in a collaborative environment. Candidates should have 3+ y ...

Systems Developer ERP & Integrations

Invertek Drives Ltd, located in Welshpool, is seeking a Junior Systems Developer to assist in the development and support of custom software applications. The role involves working closely with users to gather requirements and translate them into effective technical solutions. Candidates should possess ...

Dynamics 365 & Power Platform Engineer

Adecco is seeking a Software Developer specializing in Dynamics 365 and Power Platform to join our IT Business applications team in London. The ideal candidate will design and maintain end-to-end business solutions, customizing applications and collaborating with cross-functional teams. Requirements in ...

Lead Integrations & API Architect

A pioneering AI technology company in Cambridge is seeking a Head of Integrations to lead technical aspects related to system integration. The ideal candidate will possess a deep technical background in software development and can engage with clients effectively. Responsibilities include overseeing integration ...

OMS & Trading Systems Implementation Consultant

Java Script Works is seeking an experienced Implementation Consultant based in Greater London. The ideal candidate will have a BSc or MSc in IT, Economics, Mathematics, or Finance, along with substantial software implementation experience. Proficiency in JavaScript and familiarity with various programming langua ...

Lead Backend Engineer Data & CMS (Contract)

Harnham is looking for a Lead Backend Software Developer on a contract basis in London. The role involves leading backend development across complex CMS and core data systems and requires strong skills in Node.js, JavaScript, and TypeScript. This is an exciting opportunity to have an immediate impact i ...

Senior PHP Developer — Live Systems, Secure and Scalable

Get Recruited Ltd is looking for a Senior Software Developer in Barnsley, offering a salary of up to £50,000 plus great culture and benefits. The role involves working on live systems, managing sensitive data, and improving existing code. The ideal candidate will have strong PHP and JavaScript skills a ...

SDET Engineer — Playwright Automation, Remote

MillTech is seeking a Software Developer in Test (SDET) to join their remote-first team. In this role, you will design, execute, and maintain test cases, focusing heavily on automation and quality assurance. With a competitive salary between £45,000 and £55,000, the position offers numerous benefits, i ...

Principal Engineer

Principal Engineer This is a hybrid position within the UK. We currently don’t provide visa sponsorship. We are a B2B Fintech focusing on disrupting the small business lending market. SMEs make up 99% of all UK businesses yet are traditionally underserved by big banks and financial instit ...

Principal Engineer

Principal Engineer This is a hybrid position within the UK. We currently don’t provide visa sponsorship. We are a B2B Fintech focusing on disrupting the small business lending market. SMEs make up 99% of all UK businesses yet are traditionally underserved by big banks and financial instit ...

Electronics Engineer

Contract: Permanent, full-time role. Start date: August 2026 or ASAP. Visa sponsorship available . About Us At Wave Photonics, we are building a platform to enable and accelerate the development, mass production and adoption of integrated photonics technologies. Int ...

.NET Developer

Connecting Microsoft professionals, Developers, DevOps Engineers, Architects and Development Managers with amazing career opportunities within tech… .NET Developer - Gloucester (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docke ...

Java Developer for Trading (Securities Lending) VP

For additional information, please review .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 A ...

Frontend Engineer Real Time AI Retail UI

A stealth-mode AI company in the UK is seeking a Frontend Engineer to design and build engaging web experiences for retail. You will work collaboratively with cross-functional teams to implement reactive interfaces and contribute to API design. The successful candidate will possess strong UX and web framework ex ...

Senior DevOps Engineer

Overview Job Description DevOps Engineer Location: London EC3R (Hybrid 4 days per week) Salary: benefits Are you passionate about automation system reliability and continuous improvement Were looking for a DevOps Engineer to help design implement and maintain s ...

Principal Engineer CPTO, BPL

Principal Software Engineer, Platform – BPL This role is responsible for driving technical excellence and innovation by leading the design and implementation of robust software solutions, providing mentorship to engineering teams, fostering cross‑functional collaboration, and contributing to strat ...

Junior Infrastructure Engineer

Job Type: Permanent, full-timeCompany: Enactor ( )Location: Hertford, United Kingdom Job Title: Junior Infrastructure Engineer Sector: Enterprise Retail SoftwareRequirement: 3+ years Salary: To be advised based on fit with a role with a bonus scheme linked to performance We are looking for ...

Senior Product Engineer

We’re excited to partner with a profitable SaaS startup experiencing rapid growth and strong ARR in a short timeframe. Due to increasing customer demand, they’re expanding their engineering team and looking for product‑minded engineers to join them on their journey. Location: Hybrid – ...

Senior Ruby on Rails & API Integration Engineer

SeniorSoftwareEngineer/RubyOnRails/React/TypeScript Location:Wallingford-Oxfordshire(Hybrid)-onsiteonceevery4-6weeks Permanent AtDexory,wearetransformingthewarehousingandlogisticsindustrythroughdataintelligence. AsanIntegrationEngineer,youwillplayakeypartin ...

Backend Engineer (Mid Level)

About Motorway Motorway is the UK’s fastest-growing used car marketplace - our online-only platform connects private car sellers with thousands of verified dealers nationwide, ensuring everyone gets the best deal. Founded in 2017, our award-winning, technology-led approach has redefined t ...

Head of Software Engineering Personalisation

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

Software Creative Technologist

About Nothing Nothing exists to make tech feel exciting again. We’re building a different kind of technology company, one that puts design, emotion, and human creativity at the heart of everything we do. From the way our products look and feel to how we communicate and show up in culture, we beli ...

Software Creative Technologist

About Nothing Nothing exists to make tech feel exciting again. We’re building a different kind of technology company, one that puts design, emotion, and human creativity at the heart of everything we do. From the way our products look and feel to how we communicate and show up in culture, ...

Lead Frontend Architect — Climate Tech & Geospatial Viz

A climate-tech company in Cambridge is seeking a Lead Frontend Engineer to drive the transition to a micro-frontend architecture. You will work closely with the CTO and mentor a growing team. The ideal candidate has over 4 years in React and TypeScript, experience with complex data visualizations, and a solid ar ...

Staff Design Engineer — Shape Design Systems for Scale

Alumni Ventures is seeking design engineers in Cambridge, UK to work on challenging design problems and enhance in-house design systems. Roles range from Junior to Staff Design Engineer, requiring skills in UI/UX and proficiency in TypeScript and React.Benefits include a competitive salary of £138K – £ ...

Blockchain Developer Ethereum/ TypeScript/ JavaScript/ Web3 Blockchain & AI Start up £100k

Opus Recruitment Solutions provided pay range This range is provided by Opus Recruitment Solutions. 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 Opus Recruitment Solutions <h ...

Ruby / JavaScript Web Developer Rails Fintech 50 in London Quant Capital

The Position The position is for a Ruby Web Application Developer to build new and maintain existing Rails applications communicating with a Java API. The developer will be working within an Agile team to design and deliver high-quality applications. Required Skills Experience d ...

Senior Cloud Engineer

Get AI-powered advice on this job and more exclusive features. Direct message the job poster from G.Digital Senior DevOps & Cloud Recruitment Consultant: G.Digital | G&T (girls and tech!) | 85% female placement Senior Cloud Engineer - Up to £73k - Remote ( Leeds once a Month) </ ...

Founding Product Engineer at Briefcase

Job Title Founding Product Engineer Company Description Briefcase - AI-driven system of record automating accounting workflows Job Description Join as a founding engineer to build a next-generation system of record that leverages custom AI agents and a bespoke ...

DevOps Engineer

DevOps Engineer (6-Month Contract | Remote | Up to £350/day | Outside IR35) Immediate start | Strong extension potential Length: 6 months (with strong likelihood of extension) Rate: Up to £350/day </l ...

Software Engineer III (UI) Digital Markets Execution Technology (DMET), Execute

As a Software Engineer III at JPMorganChase, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for carrying out critical technology solutions across multiple technical areas within vari ...

Software Engineer III (UI) Digital Markets Execution Technology (DMET), Execute

As a Software Engineer III at JPMorganChase, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for carrying out critical technology solutions across multiple technical areas within various ...

Director of Software US or UK 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 ...

Digital Promotion Manager

Freightserve recruitment are looking for a Digital Promotion Manager for a Worldwide Freight Forwarder. The company is based in the Feltham, Middlesex area.Job OverviewThe Digital Promotion Developer is based at Head Office, London Heathrow, and reports directly to the Digital Promotion Manager. ...

Senior Lead Software Engineer Python and Java Equity Derivatives and Pricing

Job Description 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 J.P. Morgan, you'll collaborate with talented teams, grow your skills, and make a ...

Frontend Developer

Frontend Developer Brighton Hybrid, £40,000-£50,000 We're working with a growing technology business building AI‑led products within eCommerce. Their platform helps retail brands create more personalised shopping experiences through intelligent recommendations and customer‑facing di ...

Frontend Developer

Frontend Developer Brighton Hybrid, £40,000-£50,000 We're working with a growing technology business building AI‑led products within eCommerce. Their platform helps retail brands create more personalised shopping experiences through intelligent recommendations and customer ...

Risk Software Developer

Position Reference: VN2715 The Software Developer will be working daily within the Risk stream. There is an opportunity to learn Risk & Compliance through development and collaboration, improving business processes. The role will join a dynamic team building a strategic system‑scape, shap ...

Frontend Engineer

Jumpstart is a startup hiring platform partnering with a small, curated group of ambitious VC-backed startups in the UK. Our job is not to sell you roles. It’s to make sure that when you do move, it’s into a place where you’ll actually get to build, learn, and have real impact. About the role </h3 ...

Engineering Team Lead

Engineering Team LeadAbout SwapSwap is the infrastructure behind modern agentic commerce. The only AI-native platform connecting backend operations with a forward-thinking storefront experience. Built for brands that want to sell anything — anywhere, Swap centralises global oper ...

Senior Mobile & Web Engineer (Maps & Geospatial)

Roadern is building an AI-powered road and asset intelligence platform used by road authorities and councils. Our product is mobile-first, turning smartphone imagery, GPS, and sensor data into actionable insights at scale. We’re looking for a senior engineer who is strong in React Native, comfortab ...

NET/SQL Developer — Hybrid (3 days in office) & Mentorship

IT Talent Solutions is seeking a Mid-Level .NET / SQL Developer based in Surrey. This role offers hybrid working after an initial probation period. You'll join a collaborative Agile team, working on a variety of projects using .NET, SQL, Angular, and TypeScript. The position involves mentoring junior members ...

Risk Engine Software Developer

A leading technology company in Greater London is seeking a Software Developer to work within the Risk stream. The role involves collaborating on Risk Engines and improving business processes through development. Candidates should have full-stack Python capabilities, experience with numerical processing, familia ...

Senior Backend Engineer (Rust/TS) Equity, High Throughput

Energy Jobline ZR is searching for Senior/Principal Software Engineers to join a rapidly growing start-up in London. They focus on innovative decision-making technology and are open to backend and full-stack candidates. The ideal candidates are technically skilled, with bonus points for experience in h ...

Engineering Manager AI Driven Construction Tech

Apache Associates is looking for a Software Engineering Manager to lead and scale a high-performing engineering team responsible for AI-enabled platforms for construction projects. This role involves mentoring engineers, establishing best practices, and driving AI tool adoption. Candidates should have strong man ...

🚀 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

    Buffering Video...

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