• United Kingdom Jobs Expertini profile avatar

    • 2,236,378+ 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

    Senior Embedded C++ Engineer for Streaming OS

    Roku, Inc. in Cambridge is looking for an experienced software engineer to develop core features for streaming applications on the Roku platform. If you have extensive C++ programming skills and a background in embedded systems, this role offers an exciting opportunity to impact millions of users. The ...

    Senior Automation Engineer — Secure CI/CD Orchestration

    Palo Alto Networks, Inc. is looking for a Principal Automation Engineer to enhance their software release lifecycle. You'll design and maintain robust testing pipelines, troubleshoot issues collaboratively, and optimize the deployment processes. Ideal candidates have extensive DevOps experience, partic ...

    Principal Electrical Engineer: Power Systems Lead (Hybrid)

    Wood is seeking a Principal Electrical Engineer to join their team in Reading on a staff basis. In this role, you will be responsible for electrical power system studies and design activities for projects in the energy sector, ensuring work meets standards and codes. You will bring extensive experience ...

    Lead AI Engineer GenAI & Agentic Systems (Hybrid Glasgow)

    Hawksworth is seeking an AI Lead Software Engineer in Glasgow to help deliver robust AI solutions for tier 1 financial clients. This role involves working in a hybrid model with 2 days in the office. The ideal candidate should have hands-on experience using GenAI and Agentic frameworks, with a mindset ...

    Real Time Distributed Market Data Systems Engineer (Python)

    NJF Global Holdings Ltd is seeking a Software Engineer to build a next-generation Tick Data Platform from scratch. Join a greenfield engineering initiative where you will collaborate closely with researchers and engineers to design scalable distributed systems that impact quantitative research and trading. </ ...

    DevSecOps Security Engineer — Hybrid (London/Bristol)

    HealthHero Services Ltd is seeking an experienced Application Security Engineer to join their team in London or Bristol. This role focuses on security across the software development lifecycle, with key responsibilities including implementing CI/CD security testing and conducting vulnerability management. </p ...

    Senior Highway & Infrastructure Design Engineer

    Sutcliffe in Liverpool is seeking an experienced highway and infrastructure engineer to join our team. The role involves producing infrastructure designs that influence master planning and designing drainage and highway projects using industry-standard software. The ideal candidate will hold a degree i ...

    Senior AI & Data Solutions Engineer

    Sivara GmbH is a leading deep data and AI consultancy based in London, seeking a Software/Data Engineer. The role involves designing technical solutions using Python, SQL, and other modern technologies. Candidates should possess strong communication skills and the ability to work directly with clients in fast ...

    Founding Mobile Engineer Remote, Path to Head of Engineering

    Adria Solutions Ltd. is looking for a Founding Engineer to take ownership of the core mobile application and help shape its technical vision. This is a pivotal opportunity at a growing tech startup where you can significantly influence strategy and lead an engineering team. The role requires a strong m ...

    Principal Automation Engineer: Secure CI/CD Leader

    Palo Alto Networks is looking for a Principal Automation Engineer in Greater London. This role involves designing and maintaining software delivery pipelines, ensuring a great developer experience, and optimizing testing infrastructure. The ideal candidate will have excellent DevOps experience, a stron ...

    End to End ASIC PD Engineer Low Latency

    Jane Street is seeking an ASIC Physical Design Engineer to join their Ultra Low Latency team in Greater London. This role involves designing, testing, and deploying advanced hardware while collaborating with diverse teams such as trading and networking. Candidates should have experience across the chip design pr ...

    NVH Engineer – Stealth Marine Systems (On Site)

    Gold Group is seeking an experienced NVH Engineer to join their defence engineering team in Barrow-in-Furness. This role involves working on advanced marine systems, developing test procedures, and analyzing noise and vibration measurements to meet stealth performance goals. The ideal candidate will po ...

    Senior Integrations Engineer — Build the Telecom OS & APIs

    Gigs is looking for a Senior Software Engineer, Integrations in Greater London. This role emphasizes backend expertise and system integration, aiming to create seamless telecom solutions. Ideal candidates will demonstrate strong API design skills, effective communication, and a collaborative mindset. O ...

    Lead Mechatronic Systems Engineer

    HCLTech in Rocester is seeking a highly experienced Principal Systems Engineer to lead the development of complex mechatronic systems in an off-highway and automotive environment. This role requires defining system architecture, driving model-based development, and seamless integration of hardware and softwar ...

    BMS Commissioning Engineer – On Site (West Midlands)

    Adapt Recruitment is seeking a Commissioning Engineer based in Birmingham to work on commissioning projects, primarily in the West Midlands. The role involves completing commissioning documentation, providing technical support to junior engineers, and writing BMS software as needed. The ideal candidate ...

    Intern: Visual Simulation & 3D Data Pipelines

    Lodestar Space based in London seeks a motivated Software Engineer Intern to support the Perception team in enhancing synthetic dataset generation systems. This role will involve hands-on experience with modeling, automation scripts, and game engine development. The ideal candidate should be pursuing a ...

    Industrial Structural Engineer | Design & Project Lead

    JACOBS is seeking an early-to-mid-level Engineer in Glasgow to tackle technical challenges in structural engineering. This role involves organising tasks, managing project scope, and collaborating with multi-discipline teams in a dynamic environment. The ideal candidate will have at least 5 years' expe ...

    Cloud Native .NET Engineer: Build Impactful Digital

    Macmillan Cancer Support is seeking a Software Engineer to join their hybrid team, working between home and their London, Shipley, or Glasgow offices. The role involves building and maintaining cloud-native applications using .NET and Azure, contributing to the digital transformation of support services for p ...

    Senior Simulation Engineer: High Fidelity Plant Simulation

    Kion Group AG is seeking a Simulation Engineer in Stockport, United Kingdom to design and develop high-fidelity models of material-handling systems. This role involves ensuring efficient project execution and providing critical insights based on simulation outcomes. The ideal candidate will have severa ...

    Electrical Building Services Engineer — Design & BIM

    AECOM is seeking an ambitious Electrical Engineer for their Belfast team. In this role, you will design electrical building services systems, prepare technical documentation, and ensure compliance with regulations. You will also mentor junior engineers and collaborate within multidisciplinary teams. Th ...

    Principal Automation Engineer: Secure CI/CD Leader

    Palo Alto Networks is looking for a Principal Automation Engineer in Greater London. This role involves designing and maintaining software delivery pipelines, ensuring a great developer experience, and optimizing testing infrastructure. The ideal candidate will have excellent DevOps experience, a stron ...

    Senior AI & Data Solutions Engineer

    Sivara GmbH is a leading deep data and AI consultancy based in London, seeking a Software/Data Engineer. The role involves designing technical solutions using Python, SQL, and other modern technologies. Candidates should possess strong communication skills and the ability to work directly with clients in fast ...

    Founding Mobile Engineer Remote, Path to Head of Engineering

    Adria Solutions Ltd. is looking for a Founding Engineer to take ownership of the core mobile application and help shape its technical vision. This is a pivotal opportunity at a growing tech startup where you can significantly influence strategy and lead an engineering team. The role requires a strong m ...

    Civil Design Engineer: Water Infrastructure Innovator

    A dynamic infrastructure firm in Wakefield seeks an experienced Civil Design Engineer to join their team. The successful candidate will be involved in designing infrastructure and non-infrastructure utility projects within the Water Framework. Responsibilities include preparing design solutions, overseeing quali ...

    Backend Focused Product Engineer — Build, Ship, Impact

    A leading AI startup in London is looking for a Product Engineer who is customer-focused and passionate about software development. The role involves leading product design and development with a primary focus on backend technologies using Python, AWS, and serverless frameworks. The ideal candidate is an ambitio ...

    Electrical Engineer (Intermediate) – Flexible & Remote Design

    Ingleton Wood in Billericay is hiring an Intermediate Electrical Engineer to deliver high-quality electrical engineering design and consultancy services across various building projects. You will design and manage electrical systems while ensuring compliance with technical standards, client expectations, and ...

    Stress Analysis & FEA Engineer – Hydrogen & CO₂ Pipelines

    Premtech Ltd, located in Ruddington, is seeking a Stress Analysis Engineer to join the team at Premzero. The role focuses on performing pipework stress analysis and other analyses such as FEA and fatigue studies. Candidates should have relevant experience in the UK gas transmission industry, particularly with CA ...

    AI Safety Engineer: Production Guardrails & Moderation

    A leading AI company is seeking an experienced AI Safety Engineer to drive the deployment and operationalization of automated moderation and guardrail systems. You will design and build scalable backend infrastructure for content moderation, and collaborate with ML engineers to ensure robust and observable syste ...

    Shape Next Gen GPU Verification Engineer (Senior/Staff)

    A leading semiconductor company in Cambridge seeks a Verification Engineer to test and validate next-generation graphics processors. This role involves collaborating with a diverse team to develop and implement test methodologies while engaging with both design and software teams. Candidates should possess stron ...

    Senior Planning Engineer — Industrial & Manufacturing

    A global professional services firm is seeking a Senior Planning Engineer to join their controls and performance team in Lincolnshire. This role involves overseeing the planning and scheduling of complex construction projects, ensuring efficient resource allocation and timely delivery. Candidates should have a B ...

    Lead Stress Engineer — Aerospace & Defence

    A dynamic engineering company in the UK is looking for a Stress Engineer to assess designs for structural integrity and ensure compliance with safety standards. The ideal candidate should possess a degree in Engineering and experience in stress analysis within aerospace or heavy engineering. This role involves u ...

    Senior Mechanical Design Engineer — Hybrid, Growth Path

    Synergy Personnel Services is looking for a Senior Mechanical Design Engineer to join their established consultancy in Nottingham. The ideal candidate should possess a background in Building Services, with expertise in design software such as AutoCAD and Revit. This role offers a competitive salary between GBP50 ...

    Senior Design Quality Engineer SaMD and IEC 62304 Expert

    BioTalent is assisting in hiring a Senior Design Quality Engineer in Greater London, UK. This role involves supporting design and risk activities, and creating technical file documentation. As one of the first UK hires, you will collaborate with a global team and make a substantial impact in a transformative ...

    Graduate Test Automation Engineer Hybrid, AI Product QA

    A global technology leader is seeking a passionate Graduate Test Automation Engineer to enhance their innovative products. This entry-level position offers a structured 12-month contract focusing on automated testing within a hybrid work model. Candidates with a degree in Computer Science or Software Engineering ...

    Lead Mambu Integration Architect – Savings Focus

    A financial services company in Greater London is seeking a highly skilled Lead Engineer to lead the integration of Mambu's core banking platform, particularly for Savings products. The ideal candidate will have over 7 years of experience in software engineering and at least 3 years focused on Mambu integration, ...

    Lead QA Engineer for Public & Private Sector Projects

    慨正橡扯 is seeking a Quality Assurance Consultant in Newcastle upon Tyne to ensure quality across projects in government and healthcare. You'll lead projects as a lead software quality engineer, collaborating with teams and clients to uphold high-quality standards. This role requires active Security Check ...

    Lead Data Governance & Data Mesh Automation

    Canonical Group Ltd is seeking a Lead Data Governance Engineer to oversee data governance policies and develop Python-based tools for automated operations within a data mesh framework. This role is essential for ensuring compliance with internal policies and relevant regulations. The position allows fo ...

    Control Systems Engineer – Derby (12 month Contract)

    An international engineering company in Derby is looking for a Control Systems Engineer for a 12-month contract. You will design complex control systems and work collaboratively to enhance safety and reliability. The role requires a degree in an engineering discipline and hands-on experience with control system ...

    Water Infrastructure Mechanical Design Engineer (Hybrid)

    A leading engineering contractor in the Bristol area seeks a talented Mechanical Design Engineer to enhance their design capability in the water and utilities sector. This role requires experience in mechanical systems such as pumps and valves, proficiency with design software, and a focus on quality delivery. Y ...

    Mechanical Design Engineer – Building Services & BIM

    A leading engineering consultancy in Reading is seeking a Mechanical Design Engineer to join its experienced team. The role involves diverse project work within various sectors and requires significant experience in mechanical design. Candidates should hold an accredited Building Services degree and ideally be w ...

    Lead Power Electronics Engineer — Systems & Topology Leader

    A leading defense technology firm in Edinburgh is seeking a Lead Power Engineer to join their Power Supply Unit (PSU) team. The candidate will provide technical and managerial support across various projects and ensure design integrity in power system development. Responsibilities include conducting tests, revie ...

    EV Power Electronics Engineer – Embedded & PCB

    Vantage Consulting is seeking an Electronics Design Engineer to work on innovative electronic products for the EV and power management sector. This permanent role offers a salary of up to £50,000 and involves developing systems from concept to production. The successful candidate will engage in both el ...

    Senior Electrical Design Engineer Lead Power Systems 33kV

    A leading engineering firm in Manchester is seeking a Senior Electrical Design Engineer to take ownership of projects from concept to delivery. The role involves designing electrical installations up to 33kV, ensuring compliance with standards, and managing project budgets. The ideal candidate will have over 5 y ...

    Senior Hardware Engineer: DC Fast Charging for BESS

    Allye Energy Limited is looking for a Hardware Engineer to pioneer the integration of DC fast charging into their battery energy storage systems. The role involves developing the system architecture and implementing software solutions, ensuring compatibility with public DC fast charging networks. The i ...

    Senior Automation Test Engineer — On‑Site Cheltenham/Gloucester

    A global IT solutions firm in the United Kingdom is seeking an Automation Test Engineer to join their team in Cheltenham/Gloucester. This role requires executing functional tests, authoring test materials, and contributing to test planning and scheduling. The ideal candidate will have a strong background in soft ...

    Controls & Visualization Engineer Hybrid UK

    Atlas Copco Airpower N.V. is looking for a Controls Engineer in Bristol, UK. You will write control and visualisation software, create design and test documentation, and work collaboratively in project planning. The ideal candidate will have an HND or degree in a relevant field and strong PLC and HMI programming ...

    Field CHP Maintenance Engineer – UK Travel & Vehicle

    Smart Search Technical Ltd is seeking a Maintenance Engineer - CHP to perform routine servicing and reactive maintenance on Combined Heat and Power systems. Based in Croydon, this role involves nationwide travel and offers a salary between £36,000 and £45,000 per annum. Ideal candidates will have at least 3 year ...

    Customer‑Facing AI Engineer for UK Defence

    Northslope Technologies in Greater London is seeking a Forward Deployed Software Engineer. In this role, you will help customers solve critical problems by architecting and maintaining applications that drive measurable business impact. Strong proficiency in Python and/or TypeScript, along with excellent anal ...

    Design Engineer – Civil Structures (Rail & Bridges)

    A global consulting engineering firm is seeking a Design Engineer to contribute to civil and structural design across various infrastructure projects in the UK. The role includes designing operational infrastructure like bridges and heavy civils, with a focus on coordination with engineering disciplines. Candida ...

    Senior Test Automation Engineer – AI Driven QA (Hybrid)

    Ashdown Group is seeking a Senior Test Automation Engineer in Kingston upon Thames. In this hybrid role, you’ll ensure the quality and performance of high-volume transaction platforms while collaborating with cross-functional teams to design and implement testing strategies. The ideal candidate will ha ...

    🚀 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