1,957,466+ 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

Automation Tester C#/JavaScript, Playwright & MS Dynamics

Cognizant is seeking an Automation Tester in Greater London to design, develop, and maintain automated test solutions for web and MS Dynamics applications. The role involves collaborating with Agile teams to ensure high-quality releases through rigorous testing protocols and advanced automation frameworks. </ ...

Automation Tester (C#/Javascript & Playwright & MS Dynamics)

The Automation Tester is responsible for designing, developing, and maintaining automated test solutions for web and MS Dynamics applications. Working within Agile delivery teams, the role ensures high-quality releases through functional, regression, and integration testing, robust automation frameworks, a ...

Front End JavaScript Developer for iGaming (Hybrid)

Pure Talent Group is seeking a creative Front End / JavaScript Developer in Manchester to support the development of web and mobile games. This hybrid role, involving 2 days on-site, offers a chance to collaborate with cross-functional teams in the iGaming sector. The ideal candidate has experience wit ...

Remote JavaScript Senior Developer for AI Training

Prolific is looking for JavaScript Specialists to join their Expert Network and assist in training AI models. This role requires professional experience in JavaScript and proficiency in solving complex challenges. You'll evaluate AI-generated code, validate logical reasoning, and conduct performance te ...

Head of Engineering Java, Javascript, Cloud, Healthcare

Head of Engineering - Java, Javascript, Cloud, Healthcare Up to £850 per day (Inside IR35) London / Hybrid (3 days onsite) 6 months My client is a high-profile organisation seeking a Head of Engineering to lead a team of Software Engineering Managers, driving the development and trans ...

ServiceNow Developer – SC Cleared, JavaScript & API (Hybrid)

Java Script Works is seeking a ServiceNow Developer to join our client in the public sector for a 12-month contract. The role requires expertise in ServiceNow development, JavaScript, API integration, and related technologies like Jira, Azure, ITSM, and ITOM. The position offers a competitive pay of up to £700 p ...

AI Training & JavaScript Expert Remote, Flexible Hours

Prolific is seeking JavaScript Developers to assist in training and evaluating advanced AI models. As a Domain Expert participant, you'll be paid $40 per hour for completing AI tasks that typically require one hour of focused work. Responsibilities include analyzing and writing JavaScript, judging AI performance ...

Front End JavaScript & HTML Developer (Angular) — Contract

Java Script Works is seeking a Front End Java and HTML Developer to join their team in Brighton, United Kingdom. The ideal candidate will have strong experience in JavaScript and familiarity with Agile development practices. The role involves working with technologies such as Angular, HTML5, and Java, ...

Software Developer

A growing software team is looking for an Intermediate or Senior Developer to help build and evolve technology used across the eCommerce and logistics sector.The business provides a multi-carrier delivery platform that helps retailers manage parcel tracking, customer queries, delivery issues and claims t ...

Senior Fullstack Software Engineer, Signals Team

* A great understanding of modern frontend technologies (e.g., TypeScript and React) and backend technologies (e.g., Python, Kotlin, Node.js, REST APIs, data pipelines).* A strong ability to design and build for scalability, reliability, and performance across the stack.* A commitment to privacy and security as ...

Software Developer

Software Developer (Dynamics 365 & Power Platform) Rate - £175 (a day) Location - London (Hybrid) Duration - 3 months (Initially) Ir35 - Inside (Must use an umbrella company) The IT Business applications team play an important role developing and supporting our bus ...

Controls System Engineer

Control Systems Engineer – Birmingham, UK A global friction welding manufacturer is looking for a Control Systems Engineer to join their team based in the Birmingham area. Role Overview The ideal candidate will be a hard‑working and adaptable engineer with a strong design backgr ...

Software Engineering Manager Manchester

Software Engineering Manager – £100K On behalf of our rapidly growing client based in Manchester, we are recruiting for an exceptional Software Engineering Manager. This is an excellent opportunity for a Senior Software Engineer, Principal Engineer, or Lead Software Engineer looking to step into ...

Senior Backend Engineer (Node.js) London

Tesco UK • Welwyn Garden City • Full-Time • Permanent • Working hours 36 • Apply by 01-Sep-2026 As a backend development Engineer, you'll be working in an agile team of industry leading engineers to define and develop Tesco's xAPI (Experience API) that powers Tesco's various shopping experi ...

Software Developer

Software Developer Contract Market related Hands-On Software Developer (Contract) | Outside IR35London or Dublin | Hybrid (2-3 Days Onsite per Week)Initial 3-6 Month Contract + chance for extensionCompetitive Day Rate | Outside I ...

Senior Applications Engineer (m/f/d) in Reading Emerson

Senior Applications Engineer (m/f/d) Reading, United Kingdom Posted 9 months ago Tech stack Python FPGA Development Experience designing and implementing test and measurement systems using PXI systems with LabVIEW/LabVIEW FPGA or Python < ...

Lead Software Engineer Scale Ad Tech Platform

A leading media business in Greater London is looking for a Lead Engineer to develop and oversee large-scale advertising products. The role involves mentoring engineers, setting technical standards, and delivering systems that are reliable and scalable. The ideal candidate will have at least eight years of exper ...

Enterprise AI Engineer: Build Production AI Systems

Gravity Engineering Services Pvt Ltd. seeks an AI Engineer to build and deploy sophisticated AI systems for enterprise clients. The role offers hands-on experience, working directly with industry leaders to transform workflows and enhance profit margins. The ideal candidate has over 4 years of full-sta ...

Senior Java & Spring Microservices Architect (AWS)

Neev is seeking a skilled full stack engineer based in Bournemouth, England. The ideal candidate will have a strong background in Java and Spring/Spring Boot along with hands-on experience in cloud technologies, particularly AWS. Candidates should also be familiar with AI-assisted developer tools to enhance e ...

Senior Engineer, Ad Tech & AI Platforms

A leading media company in Greater London seeks a Senior Engineer to drive the design and implementation of advertising products. You will mentor engineers and lead the development of scalable systems in an ad tech environment. Applicants should possess at least 8 years of software engineering experience and str ...

Senior Software Engineer — Scale a Fast Growth B2B SaaS

HackerX is seeking a product-minded software engineer in Greater London to join their growing engineering team. This role involves full-stack development using Typescript and modern AWS technologies. You will have significant influence on product strategy, work in a collaborative environment, and engage directly ...

Founding AI Engineer: Healthtech Platform (Equity)

A healthcare technology startup is seeking a Founding Engineer to lead the development of an AI-powered Neurodevelopmental Operating System. This role involves building secure, production-grade software to enhance ADHD and autism assessments within NHS workflows. Ideal candidates will have 1-4 years of full-stac ...

Senior Software Engineer, R&D Tax Tech

Joingelt is looking for a Senior Software Engineer in Nottingham, UK. As part of the R&D team, you will design and deploy tax automation services, ensuring accuracy in advanced tax models while working across the stack with a focus on backend systems. Candidates should have 5+ years' experience with Typescript, ...

Production AI Engineer Enterprise Ops + Equity

A high-growth AI implementation firm in London is seeking an AI Engineer to bridge frontier AI and real-world business operations. In this role, you will deploy production-grade AI systems for various clients while collaborating with experienced founders. The ideal candidate has over 4 years of full-stack softwa ...

Senior Software Engineer Cloud Native & Secure Systems

Prattwhitney in Warminster seeks a Senior Software Engineer to join their OMNIA® Training team. You will be pivotal in delivering cloud-hosted systems and hands-on full stack engineering. The ideal candidate will work collaboratively across teams, developing secure and scalable applications. Benefits i ...

Senior Software Engineer – Asset Manager – Up to £140,000

Technical ownership, AI exploration and project variety at a specialist asset manager. You'll be joining a credit-focused asset manager - a tight, focused business where the work you do actually matters and is felt across the firm. On the technical side, you're taking real ownership here. You ...

Site Reliability Engineer with Python

Site Reliability Engineer with Python Our Client looking to bring on a site reliability engineer to help deploy, manage, troubleshoot, and enhance our complex cloud-based set of internal tools and externally managed services for a variety of users across our wide-ranging organization. </p ...

Principle Engineer

Principal Software Engineer (.NET / AWS) 90,000+ per annum – IT Function – Manchester / Hybrid Shape the Future of Cloud-Native Fintech Engineering Are you ready to step into a role where you can drive architectural excellence, solve complex engineering challenges, and influence ...

Test Engineer Active eDV Clearance

Test Engineer 📍 Manchester / Cheltenham (Hybrid & Client Site Travel) About the Role We’re looking for a talented Test Engineer to join a collaborative, cross‑functional engineering team working on high‑impact, complex systems. You’ll play a key role in ensuring quality is built into every stage of d ...

Principal Developer

The Principal Developer is responsible for defining and driving engineering standards, technical direction, and delivery excellence across the software development function. They provide strategic leadership across multiple teams, working closely with stakeholders to ensure business requirements are unders ...

Experienced Software Developer

About The Role Thank you for your interest in Mayden. Our offices will be closed from 24 December until 5 January 2026. We will be reviewing any applications up until 23 December but will not book interviews until the new year. Wishing you a Happy Christmas and New Year. How we work < ...

Technical Lead

A high-growth FinTech is expanding its engineering leadership and is looking for a Tech Lead to guide the development of core platform capabilities. Their products enable businesses across the UK, and the organisation is scaling quickly as demand increases. This position is ideal for someone who enj ...

Senior Software Engineer Belfast in Belfast Ocho

Responsibilities In this hands-on role, I need you to develop cloud-native applications using C#, TypeScript, and modern JavaScript frameworks. You will take ownership of end-to-end build and release pipelines using Azure DevOps and implement Infrastructure as Code... Requirements ...

Blue Prism Developer (IT) in London LA International Computer Consultants Ltd

Qualifications: Strong knowledge and experience with programming languages (e.g., Java, Python) Proficiency in web technologies (e.g., HTML, CSS, JavaScript) Familiarity with relevant technologies (e.g., XML, XSD) Skills: Experience in usi ...

RPA Automation Developer Azure & Power Automate

Qualifications: Strong knowledge and experience with programming languages (e.g., Java, Python) Proficiency in web technologies (e.g., HTML, CSS, JavaScript) Familiarity with relevant technologies (e.g., XML, XSD) Skills: Experience in usi ...

Carbon Data & Visualization Analyst

Skills and Qualifications ...Confident, self-motivated with strong presentation skills. Attention to detail and accurate data entry. Adaptable and able to react quickly and effectively to changes and requests. Works well as part of a team with good leadership skills. An understanding of WMS. < ...

Remote Engineering Manager Salt Search Ltd.

Proficiency in a Recognised Programming Language (e.g., JavaScript, Python, Java). Preferred Skills TypeScript NextJS/React AWS (Lambda/Step Functions, Postgres/Dynamo, CDK) Jest Playwright Engineering Manager (Hands o ...

UI Engineer in Antrim Everway

Experience and Skills Experience documenting large CSS codebases or using systems like BEM or ITCSS. Familiarity with Tailwind, CSS-in-JS, or other styling strategies. Exposure to UI testing tools like Storybook, Chromatic, or Jest. Knowledge of design token systems and precision. Responsi ...

Software Engineer II Python & Systems Design

Preferred Qualifications, Capabilities, and Skills Prior experience in Python is helpful but not required.Experience with Javascript/React helpful but not required. About Us J.P. Morgan is a global leader in financial services, providing strategic advice and delivering quality ...

React Developer (Chinese Speaking) in London Eeze

Europe’s Leading iGaming Hub Role & Key Responsibilities: As a React Developer within the Slot Team, you will play a crucial role in designing and developing the frontend of a brand-new Slot Backoffice... Frontend performance optimisation Proficiency in source versio ...

C# Senior Software Developer Stockport in Manchester Adria Solutions Ltd

Required Skills: Proficiency in C# using Visual Studio and Azure DevOps is essential, along with knowledge of HTML, JavaScript, CSS, and modern web frameworks. Experience with SQL Server or similar relational databases, and familiarity with testing frameworks. Knowledge of the Microsoft A ...

Senior C# Engineer Cloud APIs & Web Apps

Required Skills: Proficiency in C# using Visual Studio and Azure DevOps is essential, along with knowledge of HTML, JavaScript, CSS, and modern web frameworks. Experience with SQL Server or similar relational databases, and familiarity with testing frameworks. Knowledge of the Microsoft A ...

Software Engineer II Python / Athena in London JPMorgan Chase & Co.

Preferred Qualifications, Capabilities, and Skills Prior experience in Python is helpful but not required.Experience with Javascript/React helpful but not required. About Us J.P. Morgan is a global leader in financial services, providing strategic advice and delivering quality ...

Front End Developer (6 Month Contract) Immediate Start in London The ECA International Group

Desirable Experience (Nice to have): Familiarity with accessibility and SEO best practices. Experience with technologies such as Node.js, PostgreSQL, Express, GraphQL, AWS, GitHub, Terraform. Exposure to mobile application development and multi-tenanted… <h3 ...

.NET Developer in London Hays

.NET Developer London, United Kingdom Tech Stack React Tableau SQL C Responsibilities & Requirements Extensive experience working with C#/ .NET Good background working with Blazor or React idea ...

Retail Security Officer in London MAN Commercial Protection

Retail Security Officer London, United Kingdom Posted 9 months ago Tech stack React Security Main Responsibilities: Customer focused and comfortable to interact and deal with members of the public on a day-to-day basis. React ...

Front End Developer Active SC, AWS in London Hays

Front End Developer - Active SC, AWS London, United Kingdom Posted about 1 year ago This is a job posted by our partner Jooble Tech stack DevOps React Fundamentals Component cloud services Amazon AWS Docker ...

AWS cloud application Backend TypeScript Programmer in London Expert Employment

AWS cloud application Backend TypeScript Programmer London, United Kingdom Posted 10 months ago Responsibilities A strong computer science academic background is required to join a cloud services development team working on an industrial workflow and process management s ...

Senior Backend Engineer (Foundations)

A Unicorn company that have recently opened up a Platform Foundations division in London is looking for multiple senior backend engineers to join their London-based team. The client It’s an opportunity to have an immediate and real impact on the future of their product. They have a self-aut ...

Tech Lead (Node.JS, Ruby, Kafka)

A Unicorn company that have recently opened up a Platform Foundations division in London are looking for multiple Tech Leads to join their London based teams. The client It’s an opportunity to have an immediate and real impact on the future of their product. They have a self-autonomous envi ...

🚀 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

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