• United Kingdom Jobs Expertini profile avatar

    • 2,117,566+ 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
    Explore Leading Employers
    High-Paying Careers
    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.

    1. Expertini
    2. United Kingdom
    3. Jobs
    4. Full Stack Software Engineer Javascript React Elixir Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Principal Design Engineer: AI Driven UX Leader

    AlphaSense is seeking a Principal Design Engineer to shape the future of our product experience in the United Kingdom. This role demands 12+ years of experience in product design, understanding of modern front-end technologies like HTML/CSS and React, and expertise in leveraging AI in design. You will lead desig ...

    Lead Frontend Design Systems Engineer

    Seeq is seeking an exceptional Frontend Engineer in the UK focused on evolving its design system and creating reusable application patterns. The role offers a chance to enhance component quality and usability while collaborating with UX and engineering teams. Candidates must have at least 10 years of experience, ...

    AI Engineer

    About the companyTerra is the health operating system. we make it easy for developers and AIs to build on health data. hundreds of wearables, sensors, labs, and health apps — connected, normalized, and made intelligent through a single platform. 1,000s of developers and AI labs build on Terra today. w ...

    Software Developer Finance Technology

    About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four c ...

    SENIOR ROBOTICS ENGINEER

    Requisition ID11239 -Posted - Years of Experience (1) -Technology - Where (1) Roboverse Reply is the Reply Group company specialising in robotics integration for complex outdoor environments. Our mission is to empower organisations in complex outdoor sectors to confidently adopt robot ...

    Java Developer Cloud Technologies (AWS) in Brentwood SSOVEREIGN SOFTWARE SERVICES LTD

    Java Developer – Cloud Technologies (AWS) Location: Brentwood, United Kingdom Posted: 10 months ago Job Summary We are looking for a passionate and skilled Java Developer with strong experience in cloud technologies (AWS) and modern backend development practices. ...

    Product Engineer

    What We Do Conduct is building the AI operating system for Enterprise IT, starting with the deepest cost center and innovation bottleneck in global business: the day-to-day operation, maintenance, and change management of mission-critical enterprise systems . Across the world’s lar ...

    Data Engineer

    MissionNeko is redefining what prevention means, from treating illness when it arrives, to sustaining health before it's ever at risk. Our mission: make data-driven, preventative care accessible to more people, before symptoms appear. In a single, non-invasive visit under an hour, proprietary technolo ...

    Senior Frontend Engineer, Accounting 100% Remote EMEA

    NOTE: This is a fully remote role, but the candidate must be within EMEA to collaborate with their team, peers, and internal customers. You do not have to be in the specific country or city shown in this listing, but please only apply if you are physically based within EMEA. Trusted by 20,00 ...

    Microsoft Dynamics 365 Managed Services Consultant

    Job Description This is a great opportunity for you to grow your career! You’ll be responsible for business development, solution design/development and contributing to the continued growth of our Microsoft capability. You’ll deliver business solutions on Dynamics and the P ...

    Observability Engineer CGEMJP00342004

    Role Title: Observability Engineer Duration: 6 month contract Location: Telford. Hybrid 2 days per month onsite Rate: up to £598 p/d Umbrella inside IR35 Clearance required: You must be Eligible for SC Clearance Role purpose / ...

    Frontend Engineer (UK)

    Frontend Engineer (UK) About Mayday We're an accounting-tech startup building automation and AI to eliminate the tedious manual spreadsheet-based work that haunts in-house finance teams every single month. We serve the mid-market end of SMB: in-house finance teams of 2–10 people ...

    Systems Developer

    At Antares, our success starts with our people. We’re a collaborative and an inclusive organisation where every voice is valued, and every individual can grow and thrive. We combine deep expertise with a supportive culture to deliver outstanding results for our clients and a fulfilling experience for ou ...

    Senior Frontend Engineer: Growth Experiments

    A health-focused technology company in the UK seeks a Senior Frontend Engineer to lead growth experimentation efforts. You will own the frontend platform, engaging in design and testing of features that enhance patient interactions. The ideal candidate possesses strong skills in React and TypeScript, with experi ...

    Senior Scala Engineer Hybrid Backend (London)

    A technology consulting firm is looking for a Senior Scala Engineer to build and maintain backend services while integrating data. The ideal candidate will have strong Scala skills, exposure to Docker, Kubernetes, and CI/CD processes, alongside a solid understanding of AI and modern front-end technologies like R ...

    .NET Developer Burton in Kendal

    .NET Developer, .NET 10.0, C# 14, Agile - Burton-in-Kendal, Cumbria (Tech stack: .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Full Stack, Architect) Our client is a global innovator that builds software ...

    Principal Front End Engineer

    About Us Solirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely with our clients, embedding our consultants i ...

    Java Developer

    hackajob is collaborating with Barclays to connect them with exceptional professionals for this role. Join us as a Java Developer at Barclays where you'll spearhead the evolution of our digital landscape, driving innovation and excellence. You'll harness cutting-edge technology to revolutionise our digital ...

    Engineering Manager: AI‑Driven Delivery & Leadership

    Interested in leading engineers to deliver modern, scalable products that make a measurable impact?Ready to shape engineering culture—mentoring managers, championing quality, and accelerating delivery through continuous improvement?About the TeamLexisNexis Legal & Profe ...

    Senior Networking Solution Test Engineer – AI Cluster Debugging

    Job Requisition ID: JR Job Category: IT - Information Technology Time Type: Full time We are looking for a Senior Networking Test Engineer with strong system‑level debugging skills to join our End‑to‑End Verification team! You will work on pioneering NVLink, Ethernet and InfiniBand ...

    Tech Lead – Departure & Compliance

    The Role Overview In this role, you will lead the evolution of the software and data platforms that underpin our Departure & Compliance product area. You will ensure that departure‑critical data—including passenger, flight, and regulatory information is perfectly integrated and highly resilient a ...

    Senior Machine Learning Engineer

    Are you looking for a new challenge? Fancy helping us shape the future of motor insurance? Prima could be the place for you. Since 2015, we’ve been using our love of data and tech to rethink motor insurance and bring drivers a great experience at a great price. Our story began in Italy, where we’ve quickly ...

    Machine Learning Engineer

    Are you looking for a new challenge? Fancy helping us shape the future of motor insurance? Prima could be the place for you. Since 2015, we’ve been using our love of data and tech to rethink motor insurance and bring drivers a great experience at a great price. Our story began in Italy, where we’ve quickly ...

    Senior Software Engineer, C++ and Python, 9 Month FTC, Manchester, COR7567

    Senior Software Engineer, C++ and Python, 9 Month FTC, Manchester, COR7567 Are you a Senior Software Engineer with strong C++ and Python experience looking to work on cutting-edge AI and machine learning technology? The Role As a Senior Software Engine ...

    Frontend Tech Lead & Manager Accessibility + CI/CD

    Experience and Skills Experience achieving compliance with accessibility standards (WCAG, etc.) Strong analytical and critical thinking skills and ability to work within a team-oriented environment Strong experience in CI/CD practices Extensive experience with ...

    Senior Java Developer in Manchester Cathcart Technology

    Minimum Qualifications 4+ years of experience with backend software development Strong Java skills with a curiosity for learning new tools and practices Advocate for clean code, test-driven development (TDD), and Agile methodologies Experience with cloud-nat ...

    Senior Backend Engineer Hybrid London, Scale & Mentor

    Bauer Media Outdoor UK is looking for a backend-focused engineer to join their team in London, working part-time in-office. You will design high-throughput services and act as a mentor to less experienced developers. The role requires strong expertise in NodeJS, Typescript, and React, as well as experi ...

    Senior Forward Deployed Engineer | AI & Data Solutions Lead

    Accenture UK is looking for a Managing Engineer - Forward Deployed in London. This role requires you to manage client relationships, lead engineering teams, and deliver innovative solutions using Palantir technology. The ideal candidate will have strong fluency in Python, SQL, TypeScript, and REACT, an ...

    Senior Digital Engineer Scalable Web & Mobile Platforms

    Love2shop is looking for a Senior Digital Engineer to design, build, and maintain digital products for enhancing customer experiences. This role includes coding high-quality applications and ensuring compliance with security standards. The ideal candidate has strong backend experience and excels in mentoring ...

    Senior Frontend Engineer — Build AI First Consumer Platform

    La Fosse Associates is seeking a Senior Front End Engineer in Liverpool, offering up to £75k. This role is pivotal in transforming a core consumer platform, with a modern, AI-first engineering approach, and gives you real influence over front-end architecture. You will lead front-end development, own d ...

    Mobile Engineer (iOS/Flutter/RN) — FinTech, Newcastle

    SR2 | Socially Responsible Recruitment is seeking a Mobile Engineer to work on a high-performance FinTech product in Newcastle. This role offers the chance to shape a real-time, data-heavy application that interfaces with trading systems. The position involves building mobile applications in Swift, Flu ...

    Senior Frontend Engineer Product Driven & AI Enabled

    Levels Technologies is seeking a Senior Frontend Engineer in Greater London to take ownership of features and ensure high-quality product delivery. The successful candidate will thrive in a fast-growth environment, collaborate closely with product and design teams, and have a strong grounding in React and mod ...

    Technical Architect | Principal Engineer for Scalable Payments

    Franklin Bates is seeking a hands-on Technical Architect / Principal Engineer in London to help shape their payment platform. This key role involves technical leadership, defining architecture, and building scalable backend services. Candidates should have experience with React Native, AWS, and scalable systems, ...

    Forward Deployed Engineering Manager, AI & Data

    Accenture UK & Ireland is looking for a Managing Engineer - Forward Deployed in London. You will manage client relationships and lead a team to deliver seamless data solutions, translating technical concepts into stakeholder language. The role requires proficiency in Python, SQL, TypeScript, and REACT, alongside ...

    Front End Engineer, Institutional — Crypto Trading UI/UX

    A leading crypto technology company is seeking a Front-End Engineer to join their Institutional team in London. The role involves building UIs, developing innovative data visualizations, and collaborating closely with traders to optimize tools. The ideal candidate should have experience with React, TypeScript, a ...

    Frontend Engineer – Build Fast, Accessible UIs in London

    A leading employee app provider in London is seeking a Front End Engineer to enhance their platform's user interface. You will work collaboratively within a cross-functional team to create fast and accessible web applications using TypeScript, HTML, and React. Ideal candidates will have a strong grasp of fronten ...

    Senior Frontend Engineer – AI Native UI High Impact Equity

    Jack & Jill in London seeks a Senior Frontend Engineer to join an elite team focused on developing an AI-native data intelligence platform. You will design and deploy scalable frontend systems while collaborating closely with the design team to create high-quality user interfaces. The ideal candidate has experie ...

    Senior Frontend Engineer B2B Privacy Platform

    A leading internet privacy company in Greater London is seeking a talented web engineer to enhance the Account experience for B2B customers. The ideal candidate will have strong experience with React and TypeScript, along with a product mindset focusing on delivering user-centered solutions. Collaborate with a d ...

    Frontend Architect for AI Powered Energy Markets

    Modo Energy is seeking a Frontend Engineer to lead the architectural evolution of our UI. You will work within a fast-paced start-up environment, developing high-performance, user-friendly interfaces using technologies like TypeScript, React, and Next.js. The ideal candidate will possess strong fronten ...

    Technical Lead AI Driven Real Estate Software

    Orbital is seeking a talented engineer to lead the development of innovative real estate AI solutions. You'll manage product features end-to-end, guide small teams, and utilize technologies like TypeScript, React, PostgreSQL, and Python. This role provides the opportunity to directly influence the evolution of t ...

    Senior Front End Engineer POC/UX Focus, Hybrid

    A digital product consultancy based in Northern England is seeking a Senior Front End Engineer to enhance their Engineering team. In this role, you will create user-centered digital products, focusing on rapid iteration and usability. The ideal candidate will have strong front-end skills with modern frameworks l ...

    Senior Frontend Engineer AI SaaS, Remote/Hybrid, Equity

    Burns Sheehan is seeking a Senior Product Engineer for a remote-first role with a hybrid option in London. The ideal candidate will contribute significantly to building and scaling the frontend of an AI-driven product using React and Typescript. Responsibilities include designing scalable architectures, leading ...

    Senior Frontend Engineer AI SaaS, Remote/Hybrid, Equity

    Burns Sheehan is seeking a Senior Product Engineer for a remote-first role with a hybrid option in London. The ideal candidate will contribute significantly to building and scaling the frontend of an AI-driven product using React and Typescript. Responsibilities include designing scalable architectures, leading ...

    Lead Enterprise AI Engineer – GenAI, Architecture & Delivery

    A leading company in AI solutions seeks a Lead Engineer to enhance the Enterprise AI engineering team. This role involves leading a team of engineers, defining technical roadmaps, and maintaining high engineering standards. Ideal candidates should have extensive experience with AI technologies, especially in RAG ...

    Senior Frontend Engineer – AI Native UI High Impact Equity

    Jack & Jill in London seeks a Senior Frontend Engineer to join an elite team focused on developing an AI-native data intelligence platform. You will design and deploy scalable frontend systems while collaborating closely with the design team to create high-quality user interfaces. The ideal candidate has experie ...

    Senior Product Engineer Healthtech Impact + Equity

    Cornerstone VC is on a mission to revolutionize NHS technology. We are seeking a Senior Product Engineer to design experiences impacting patients and clinicians. Join us and make a difference in healthcare!With a competitive salary of £90,000 - £125,000, you'll work mainly in Stratford (London). If you ...

    Design Engineer: Real Time AI Web Interfaces + Equity

    Jack & Jill is seeking a Design Engineer to redefine web experiences by building intelligent, real-time interfaces. You will work closely with the founders to bridge design and production, creating fluid AI-driven experiences. The ideal candidate is an expert in TypeScript, React, and Tailwind, and has a passion ...

    Maintenance Engineer

    Job Overview Maintenance engineer to work ad‑hoc shifts across two automated warehouses in Belfast. Responsibilities Plan, react to, and cover breakdowns for automated systems, including conveyors and sorters. Work day and night shifts (6-6). Com ...

    Java Developers (all levels)

    Position Description Overview At CGI, we’re shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Engineer, you’ll play a pivotal role in designing and developing scalable, resilient back-e ...

    Product Security Engineer (Founding team)

    Overview Aglide's browser agent platform is trusted by household-name fintechs and global enterprises to automate and secure the applications their employees depend on most. We've raised over $3.5M to go after this problem, and every day our platform is running thousands of mission-critical work ...

    🚀 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 →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

      Buffering Video...

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