• 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

    Global 24x7 Customer Support Engineer SaaS & API

    RELX INC is seeking a Support Engineer to join the global support team, responsible for delivering exceptional customer service. You will assist clients with problems ranging from troubleshooting network connections to handling complex software inquiries. The ideal candidate should have experience in c ...

    Hands On IT Support Engineer – Windows & End User

    Red King Resourcing is seeking an IT Support Engineer for onsite support in Cowdenbeath, Scotland. This hands-on role involves troubleshooting hardware and software for end users and ensuring high service delivery. The ideal candidate will have proven experience in Level 2 IT support, strong knowledge ...

    London Network Infrastructure Engineer (6 Month FTC)

    A leading financial institution in Central London is seeking a Network Infrastructure Engineer with 5 to 10 years of hands-on experience. The ideal candidate will have experience in the Financial Services sector and be proficient in Windows operating systems and various software tools. This FTC position offers a ...

    Senior DevOps Engineer: CI/CD & Cloud Automation Lead

    Lloyds Bank plc is searching for a Senior DevOps Engineer in Manchester. The role involves designing CI/CD pipelines and enhancing automation to support teams in delivering software reliably. We seek a detail-oriented individual with hands-on experience in cloud platforms and strong scripting skills. T ...

    Senior SDET – Build Robust Test Frameworks & CI

    DVSA.GOV is seeking a Senior Software Development Engineer in Test to lead the design and development of innovative testing frameworks. Based in Swansea, the role emphasizes collaboration with cross-functional teams to ensure high-quality digital products that support road safety across the UK. The suc ...

    Senior Firmware Engineer VHDL/Verilog, FPGA & DO 254

    A leading engineering solutions provider is looking for a Senior / Principal firmware engineer to design and develop firmware solutions using VHDL. The role involves working closely with Systems, Hardware, and Software teams to ensure seamless integration. Ideal candidates should have at least 5 years of firmwar ...

    Senior SDET: Lead Test Frameworks, CI/CD & Quality

    DVSA.GOV is seeking a Senior Software Development Engineer in Test to lead the design and development of test frameworks. This role involves building automated checks and improving CI/CD pipelines for reliable digital products. The ideal candidate should have experience in designing test frameworks and ...

    Senior SDET: Lead Test Frameworks, CI/CD & Quality

    DVSA.GOV is seeking a Senior Software Development Engineer in Test to lead test framework design and development, contributing significantly to digital service quality. This role involves mentoring colleagues and driving improvements in testing practices while working in Agile teams. Location options i ...

    Senior SDET – Build Robust Test Frameworks & CI

    DVSA.GOV is looking for a Senior Software Development Engineer in Test to lead the design and development of test frameworks and automation tools. You will enhance CI/CD confidence and mentor team members to uphold quality standards. Ideally, you will possess strong experience in testing across multiple level ...

    Senior Backend Engineer — Safety Detection Precision

    Samsara in Greater London is seeking a Senior Software Engineer focused on safety detection precision. This role involves building core systems for AI detection and directly influencing customer trust in safety products. The ideal candidate has 4+ years of experience in backend systems and is passionat ...

    SC/eDV Cleared Platform Engineer Cloud/Automation, Hybrid

    Raytheon Systems is seeking a Platform Engineer in Greater Manchester. This hybrid role (minimum 3 days on site) involves deploying applications and software to cloud or on-prem environments. Candidates must be willing to hold SC and eDV clearance. The successful candidate will work within an Agile/SCR ...

    Product Security Engineer: AI Driven Defense & Supply Chain

    MirrorWeb is looking for a Product Security Engineer based in Manchester to enhance the security of their communications compliance supervision platform. The role involves writing production code, defending against real threats, and collaborating closely with engineering teams. The ideal candidate will ...

    Backend Python Engineer: Cloud, Databases & CI/CD

    Instil in Belfast is looking for a Mid-Level Python Software Engineer to build and maintain backend services. The role involves working on cloud infrastructure, relational databases, and contributing to CI/CD pipelines. Ideal candidates will have experience building production systems in Python, exposu ...

    Senior Data Platform Engineer – Food Data & Pipelines

    Marks and Spencer in London is looking for a Senior Software Engineer to join their M&S Foods Product team. You'll design and develop scalable data services, champion engineering excellence, and mentor junior engineers in a collaborative environment. Required qualifications include at least 5 years in ...

    Hybrid DevOps Engineer (Junior/Mid) Cloud, Docker, Git

    Stratospherec Ltd is seeking a Junior / Mid-Level DevOps Engineer to join their growing team in Horsham. This hybrid position requires a minimum of 2 years of experience in DevOps and highlights a collaborative team approach. Key requirements include familiarity with C#/.NET, Git, PowerShell, and expos ...

    Staff Security Engineer – Secure by Design, Hybrid UK

    Data Science Festival is looking for a Staff Security Engineer to join their innovative team in London. This hybrid role focuses on securing applications, cloud infrastructure, and embedding security within the software development lifecycle. The successful candidate will drive application and product ...

    Senior Civil Engineer – Global Infra Leadership (Hybrid)

    Strata Consulting is seeking a Senior Civil Engineer for their Infrastructure team in Bath, UK. This hybrid role offers a competitive salary of £45,000 to £60,000 plus a comprehensive benefits package, including private medical insurance and a pension scheme. The successful candidate will manage infras ...

    Senior ML Hardware Tools Engineer

    ARM is seeking a skilled engineer to join the Machine Learning Hardware Architecture team. You will develop tools that enhance Arm's machine learning accelerators and collaborate closely with hardware architects to define software interfaces to new features. Ideal candidates will possess strong program ...

    Maritime Systems Engineer – Onboard & Network Solutions

    Fujitsu Limited is looking for a Maritime Node Engineer based in Warrington, UK. The role requires managing hardware and software installs across multi-vessel environments. You will conduct testing and ensure compliance with engineering standards, promoting Fujitsu's reputation. Experience with various hardwa ...

    Senior Platform Engineer Cloud, CI/CD & Kubernetes

    慨正橡扯 is seeking a Principal Platform Engineer to join our team in Manchester. This role involves deploying applications and software to various environments while ensuring security against cyber threats. The ideal candidate will have a strong background in cloud technologies, Agile methodologies, and automati ...

    Cloud Platform Engineer: AI Powered Data Infra & Automation

    MONY Group is seeking a CLOUD PLATFORM ENGINEER to take charge of building and operating our data platform. You will enhance operational workflows, support analytics and improve engineering practices through automation and AI. This role requires strong software engineering skills, particularly in Pytho ...

    C# Windows SDK Engineer – Console Platform Tools

    A leading entertainment company in Greater London is seeking a skilled C# Software Engineer to design and develop Windows-based applications for PlayStation SDK integration. The ideal candidate will have strong proficiency in C# and experience with C/C++. Responsibilities include developing applications, collabo ...

    Core Trading Java Engineer Low Latency Systems

    IG KnowHow is seeking a Software Engineer for their Core Trading team to build low-latency, high-throughput trading systems. The ideal candidate will possess strong Java skills and contribute to the performance of financial products. This role emphasizes collaboration within a dynamic team and follows ...

    Principal Platform Engineer — Cyber Cloud & Automation

    慨正橡扯 in Gloucester is looking for a Principal Platform Engineer to deploy applications and software to cloud and on-prem environments. The ideal candidate will have experience in Agile methodologies and cloud technologies like AWS or Azure, working in a hybrid model. This role primarily revolves around ...

    AI Research Engineer — Scalable ML Systems

    microTECH Global Ltd is seeking an AI Software Engineer in Cambridge or London, UK. The successful candidate will lead engineering efforts on innovative research projects in machine learning and artificial intelligence. This role requires an MSc in Computer Science, advanced programming skills, and a s ...

    AI Platform Engineer: Agent Infrastructure & LLM Systems

    Anaplan is seeking an AI Software Engineer to enhance decision-making through our AI-powered scenario planning platform. This role involves designing and building services for AI agents, while ensuring reliability and scalability. The ideal candidate will have a strong background in Python, experience ...

    Senior ML Platform Engineer Robotics (Hybrid/London)

    The American Society of Civil Engineers in Greater London is seeking a Senior ML Platform Engineer to focus on building and improving internal applications for robotics. This hybrid contract position requires a strong background in Python, FastAPI, and experience with complex data workflows. The ideal ...

    Innovative RF Antenna Design & Development Engineer

    Expleo is seeking a highly organized RF Antennae Design Engineer to join our Hardware Development team in Bristol. The role involves developing innovative antenna designs using 3D EM simulation software while collaborating with mechanical and electronic engineers. Candidates should ideally have a degree in en ...

    Senior Platform Engineer – Hybrid Cloud & DevOps Lead

    Prattwhitney is looking for a Senior Platform Engineer to deploy applications and software to both cloud and on-premises environments. This role involves building development tools, automating processes, and ensuring security against cyber threats. The ideal candidate should have experience in cloud te ...

    Senior Data Platform Engineer – Food Tech

    Marks and Spencer is looking for a Senior Software Engineer to join their M&S Foods Product team. In this role, you will design, develop, and improve data services that handle large datasets crucial for the supply chain. You'll work in a dynamic environment, collaborating across teams to deliver high-quality ...

    Real Time Data Engineer for LLM & Low Latency Systems

    A data-driven technology firm in London is seeking a Software Engineer to develop and maintain data acquisition systems using social media inputs. The role requires strong programming skills, particularly in Java (Spring), and experience with Postgres, GCP, and Docker. Candidates should also be familiar with bui ...

    Backend Java Engineer Cloud, Microservices & AWS

    A financial services firm located in Glasgow is searching for a Backend Software Engineer specializing in Java. The ideal candidate will develop scalable backend solutions, work collaboratively in agile teams, and contribute to high-impact projects in financial services. Key qualifications include proficiency in ...

    Senior Test Design Engineer Python/C++ | Hybrid York

    SwiftCruit is seeking a highly motivated Senior Test Design Engineer to join their Global R&D team in York. The position includes designing software for testing infrastructure and developing applications to support hardware designs. Ideal candidates will have a Bachelor’s degree in electrical engineeri ...

    Senior Lead Java Engineer — AI Driven Cloud Scale

    United States Digital Space LLC is seeking a Senior Lead Software Engineer to be an integral part of an agile team responsible for enhancing and delivering top-tier technology products. Located in Greater London, this role involves technical guidance, ensuring code quality, and driving the adoption of ...

    Junior Release Engineer: Cloud Deployments & DevOps Learning

    SwiftCruit is seeking a Junior Release Engineer in Birmingham, UK. This role involves deploying software, supporting release activities, and contributing to process improvements within a collaborative team. Ideal candidates will have a degree in a technical discipline and strong communication skills. I ...

    Senior DevOps Lead: Cloud Native, AWS & Linux Expert

    United States Digital Space LLC is seeking a Senior Lead Software Engineer to join their team in London. This role is key in enhancing and delivering technology products within the Global Electronic Trading Group, leveraging advanced programming and cloud technologies. The successful candidate will pro ...

    Senior Manufacturing Engineer – Aerospace Process Innovator

    Energy Jobline CVL is seeking a Senior Manufacturing Engineer to work in Ampthill on a permanent basis. The ideal candidate will be responsible for developing manufacturing processes, creating detailed process instructions, and defining sequences of operations. The role requires a strong working knowledge of com ...

    Senior Civil Engineer – Drainage & Flood Risk (Hybrid)

    Mattinson Partnership is seeking a Senior Civil Engineer to lead the design and delivery of innovative infrastructure projects. Located in London with a hybrid working model, this role involves managing drainage, highways, and utilities schemes across various developments. The ideal candidate will poss ...

    Senior Product Engineer — AI‑Driven SaaS for Property Ops

    Plentific is seeking a Senior Product Engineer in London to join our cross-functional product teams. In this role, you will work with product managers, designers, and engineers to develop solutions to complex property operations workflows. The ideal candidate will have extensive experience in software ...

    SC Cleared BMC Helix Architect & Senior Engineer (Contract)

    EUROPEAN SOFTWARE SOLUTIONS (UK) LIMITED is hiring a BMC Helix Architect/Senior Engineer based in Andover, Hampshire. This contractor opportunity offers £450 per day and requires SC Clearance. The selected candidate will architect and deliver end-to-end BMC Helix ITSM solutions, covering Incident, Prob ...

    Senior Platform Engineer Cloud Native & CI/CD

    PassFort is looking for a Software Engineer (Platform) to join their growing team in Greater London. You will play a crucial role in scaling their infrastructure and ensuring the reliability of the platform. Ideal candidates will have strong experience with AWS services, CI/CD pipelines, and TypeScript. < ...

    Hybrid Junior QA Engineer — 6 Month FTC

    United States Digital Space LLC is seeking a Junior Quality Assurance Engineer for a 6-month FTC, contributing to the Product Team. This role involves maintaining the quality and reliability of applications through rigorous testing processes and collaboration with developers and product managers. The i ...

    Customer Support Engineer SaaS & CAD/PLM Expert

    aPriori Technologies is seeking a Customer Support Engineer to join their Support, Deployment & Licensing team in Belfast. In this role, you will work directly with customers, helping them troubleshoot and resolve issues with aPriori software. The ideal candidate will have a degree in a STEM field, exc ...

    Embedded Audio DSP Engineer (C++, JUCE) Hybrid UK

    Computerworld Personnel Ltd is looking for an Embedded Audio Engineer to work for a well-respected client in the UK. You will design embedded control systems, implement platforms, and test software for audio applications. The ideal candidate has over 3 years of experience in C++ and JUCE, with knowledg ...

    Senior Platform Engineer: Kubernetes & BPaaS

    Bloomberg is seeking a Senior Software Engineer for its Platform as a Service (BPaaS) team in London. You will design and implement solutions using Kubernetes to manage workloads across a large multi-tenant platform. The ideal candidate should possess strong Go and Python skills, with an understanding ...

    RF Data Scientist / SDR Research Engineer UAV Sensing

    RedTech Recruitment is seeking an RF-focused Data Scientist/Research Engineer in Saffron Walden. This role involves working at the forefront of RF hardware and software-defined radio, contributing to next-generation RF sensing systems. The ideal candidate will analyse complex data, develop processing p ...

    Senior Go/eBPF Security Engineer

    Cisco is seeking a Tetragon software engineer to develop the Tetragon agent for embedded platforms and cloud environments. The role involves writing high-quality Go and eBPF code, enhancing security mechanisms, and participating in open-source communities. Applicants should possess 6+ years in systems ...

    Senior Cloud Platform Engineer (AWS/GCP)

    Planet A seeks a Senior Software Engineer to join their platform team in London, focusing on scalable cloud solutions. You will be responsible for managing key components across AWS and GCP, ensuring secure deployments, and mentoring junior engineers. This role offers an opportunity to work in a collab ...

    Hybrid Structural Engineer Design & Calculations

    Energy Jobline CVL is seeking a Structural Engineer in Cheadle to work on a diverse portfolio of building projects. This role offers hybrid working with a competitive salary range of £40k–£50k and excellent career progression opportunities. The ideal candidate will have over 4 years of design experienc ...

    Global Controls Engineer: Travel & Commissioning

    Samuel Frank is recruiting a Controls Engineer in Tewkesbury, UK. This role offers a mix of software development, machine support, and international commissioning, with a strong emphasis on safety and high engineering standards. Successful candidates will program PLCs, HMIs, and motion controls for spe ...

    🚀 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