2,596,290+ 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

Mathematical Software Engineer

Developing clever algorithmic software to simplify complex design problems Seeking a C++ software engineering role which will also use your mathematics abilities? This R&D team develop highly mathematical code in C++ which greatly simplifies complex hardware design tasks. The company is world leading ...

Electronics Software Engineer

Electronic Software Engineer Ulverston, Lake DistrictUp to £50,000 We're working with a growing engineering team based in the Swarthmoor area who are looking to add a talented Electronic Software Engineer to their business. This is a fantastic opportunity to be involved in the ful ...

Principal Software Engineer

Title: Principal Software EngineerRole: Distributed Systems & CommunicationsLocation: CambridgeshireSalary: £60-£80kPlatform Recruitment has partnered with an innovative technology company developing mission-critical systems used by organisations worldwide. They're looking for a Princip ...

Principal Software Engineer

Title: Principal Software EngineerRole: Distributed Systems & CommunicationsLocation: CambridgeshireSalary: £60-£80kPlatform Recruitment has partnered with an innovative technology company developing mission-critical systems used by organisations worldwide. They're looking for a Princip ...

Electronics Software Engineer

Electronic Software Engineer Ulverston, Lake DistrictUp to £50,000 We're working with a growing engineering team based in the Swarthmoor area who are looking to add a talented Electronic Software Engineer to their business. This is a fantastic opportunity to be involved in the ful ...

Mathematical Software Engineer

Developing clever algorithmic software to simplify complex design problems Seeking a C++ software engineering role which will also use your mathematics abilities? This R&D team develop highly mathematical code in C++ which greatly simplifies complex hardware design tasks. The company is world leading ...

Mathematical Software Engineer

Developing clever algorithmic software to simplify complex design problems Seeking a C++ software engineering role which will also use your mathematics abilities? This R&D team develop highly mathematical code in C++ which greatly simplifies complex hardware design tasks. The company is world leading ...

Lead Software Engineer

Lead Software Engineer - London (Hybrid) RJC Group is working with a Global energy trading company based in London who require a Lead Software Engineer. They are looking for a hands-on manager with broad technical skills and experience within trading environments t ...

Lead Software Engineer

Lead Software Engineer - London (Hybrid) RJC Group is working with a Global energy trading company based in London who require a Lead Software Engineer. They are looking for a hands-on manager with broad technical skills and experience within trading environments t ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Software Design Engineer

Software Design Engineer – Industrial Automation & Airport Security Systems Location: North West UK – Cheshire (must be based in the region)Type: 6-Month Contract → Permanent (Full-time)Salary: £60,000 – £80,000On-site: 5 days per week (38 hours) with global ...

Software Design Engineer

Software Design Engineer – Industrial Automation & Airport Security Systems Location: North West UK – Cheshire (must be based in the region)Type: 6-Month Contract → Permanent (Full-time)Salary: £60,000 – £80,000On-site: 5 days per week (38 hours) with global ...

Software Applications Engineer

Introduction Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growin ...

Software Applications Engineer

Introduction Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growin ...

Software Design Engineer

Software Design Engineer – Industrial Automation & Airport Security Systems Location: North West UK – Cheshire (must be based in the region)Type: 6-Month Contract → Permanent (Full-time)Salary: £60,000 – £80,000On-site: 5 days per week (38 hours) with global ...

Software Design Engineer

Software Design Engineer – Industrial Automation & Airport Security Systems Location: North West UK – Cheshire (must be based in the region)Type: 6-Month Contract → Permanent (Full-time)Salary: £60,000 – £80,000On-site: 5 days per week (38 hours) with global ...

Senior Software Engineer

Senior Software Engineer - UI / GUI (C# WPF / XAML) Portsmouth, Hampshire | Up to £85,000 + Benefits | Onsite | 4 or 5 day working week Some projects are maintenance. Some are migrations. And then something genuinely rare comes along - a blank canvas, a serious engineering challenge, and ...

Senior Software Engineer

Senior Software Engineer - UI / GUI (C# WPF / XAML) Portsmouth, Hampshire | Up to £85,000 + Benefits | Onsite | 4 or 5 day working week Some projects are maintenance. Some are migrations. And then something genuinely rare comes along - a blank canvas, a serious engineering challenge, and ...

Software Applications Engineer

Introduction Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growin ...

Software Applications Engineer

Introduction Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growin ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Lead Software Engineer

Are you ready to lead and influence engineering at scale, shaping how software is built across one of the UK's largest digital organisations? As a Lead Software Engineer, you'll join our Health & Disability area at DWP Digital, playing a critical leadership role in shaping how we build and deliver mode ...

Software Integration Engineer

Job Description Join our team as a Software Integration Engineer and play a key role in delivering complex, mission‑critical systems within the defence sector. This role sits at the intersection of embedded software, communications, and system integration, supporting the integration of im ...

Staff Software Engineer

Location: London (King’s Cross — 4 days per week in office) Albany Growth are partnered with a fast scaling HealthTech company building software used daily by frontline NHS staff which helps GPs, Nurses, Doctors and other specialists do their jobs easier and faster ultimately benefitting the wider ...

Software Test Engineer

We are partnered with a well-established audio company in Cambridge developing advanced technology used across a range of creative and technical applications. Due to continued growth, they are looking for a Software Test Engineer to help ensure new software releases meet the highest standards of qu ...

Java Software Engineer

CORE BANKING, TRADING SYSTEMS or HIGH TRANSACTIONAL SYSTEMS EXPERIENCE ESSENTIAL Join a newly formed Service Modernisation & AI team driving AI‑first software development in financial services. This is a hands‑on Tech Lead role modernising high‑impact legacy services while building AI‑powered eng ...

Software Engineer Leeds

Software Engineer Location: Leeds Salary: Competitive salary and package (Depending on level of experience) Note: Any offer of employment is subject to satisfactory SC security clearance, which requires 5 years continuous UK address history and no periods of 30 ...

C# Software Engineer

Job Title: C#/.NET Software Engineer Location: South Cambridgeshire Salary: Up to 70,000 Working Pattern: Hybrid 2 days in office This is a brilliant opportunity for a C#/.NET engineer to join a fast-growing technology company whose software i ...

Principal Software Engineer

# Principal Software EngineerRocket SoftwareFull-timeNewbury, United Kingdom0 viewsPosted June 5, 2026## Job DescriptionIt's fun to work in a company where people truly BELIEVE in what they're doing!Job Description Summary:The Infrastructure Modernization business unit is seeking a highly experienced Principal S ...

Software Engineer, Platform

Role Overview Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of: Creating custom AI applications that will impact millions of citizens Generating high ...

Principal Software Engineer

External Description Work with and lead talented people to achieve wonderful things at Liberty IT; for this is where you’ll find complex challenges, where you’ll be given the scope and the support to go further, dig deeper and fly higher. You’ll bring the expertise. We’ll provide the supp ...

Software Quality Engineer

ABOUT ORGANOX OrganOx is a commercial stage organ technology company dedicated to developing technologies to improve outcomes for patients with acute or chronic organ failure. The company was established as a spin out of the University of Oxford in 2008 and is now part of the Terumo Group. OrganO ...

Staff Software Engineer

Causaly is redefining how humans acquire knowledge and develop insights in biomedicine. Our AI-powered platform enables researchers and decision-makers to discover and interpret evidence from millions of scientific publications, clinical trials, regulatory documents, and other complex data sources in minut ...

Software Development Engineer

Software Development Engineer (SDE) Full Time/Permanent Hybrid – occasional travel to our Bristol office The SDE’s role is to work within a development team to design, build and maintain bespoke software applications for the Bupa Dental UK business. The SDE will work within an Agi ...

Staff Software Engineer

Responsibilities Design and develop software to solve Workload Identity challenges, from prototyping to production, and including client and server. Develop, shape, lead, mentor, and collaborate with a close-knit team. Work with stakeholders (internal and external) to discus ...

Software Engineer (Java)

Key Responsibilities Lead development of features for the online shopping experience on Joybuy. Explore, learn, design, and implement modular and scalable software components, based on your understanding and current industry trends. Understand the business problem space, and ...

Staff Software Engineer

We’re not just building better tech. We’re rewriting how data moves and what the world can do with it. With Confluent, data doesn’t sit still. Our platform puts information in motion, streaming in near real‑time so companies can react faster, build smarter, and deliver experiences as dynamic as the world a ...

Software Engineer Data

Software Engineer - Data Department: Technology Employment Type: Permanent - Full Time Location: UK - London Compensation: £64,000 - £78,000 / year Description Field is an Energy Storage Provider that operates across the va ...

Principal Software Engineer

Some roles give you a better salary. Some give you a better story. This one has the potential to do both. I’m hiring multiple Principal Software Engineers for a Series A Scale Up in Central London that is moving quickly, building with AI as a real part of the product, and led by people who ...

Software Engineer (Platform)

Scale GP (Scale Generative AI Platform) is an enterprise-grade Generative AI platform that provides APIs for knowledge retrieval, inference, evaluation, and more. We are looking for a strong engineer to join our team and help us build and scale our product in a fast-paced environment. The ideal candidate w ...

Plc Software Engineer

PLC Software Engineer Location: Cambridge OutskirtsCirca: 50,000 DOE Coates Recruitment is working with a well-established and growing manufacturer of bespoke process machinery, seeking a Software Engineer to join their engineering team. This is an excellent opportunity for s ...

Software Engineer Compilers

The Software (CE-SW) group is responsible for developing and improving the software ecosystem around Arm's next generation architectures and systems. This means working with processors and other hardware technology not yet available to the public. You will join a team of Software Engineers who share a pass ...

Python Software Engineer

Roc Search are looking for a Python focused Software Engineer to join a fast-growing technology company who are developing advanced AI solutions to optimise energy efficiency in data centres. Following a recent funding round, they are expanding their engineering team to support rapid growth. They ar ...

Software Engineer Python

Role Summary To design, develop and improve software, utilizing various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high‑quality software solutions using ...

Software Test Engineer

Location: London, UK (priority), UK-based Job Purpose and Background: Are you passionate about securing the future of the planet by preventing catastrophic climate change? Do you want to apply your considerable creativity, energy, and digital expertise at the cutting edge of corpo ...

Java Software Engineer

Full Stack Java Developer (Enterprise Web & Business Systems) Remote | £50,000 + 12% Bonus + £5,000 Car / Car Allowance My client is seeking a Software Developer to join their growing Digital team, working on enterprise‑grade web and business applications that support core internal ...

Principal Software Engineer

Principal Software Engineer – UK (remote) – High‑availability Systems – £170k + package Hybrid: 2–3 Days in office Principal Software Engineer, with strong experience developing and designing high‑availability, distributed systems is now required by a market leading trading house. <p ...

🚀 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