2,234,662+ 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

Senior Research Engineer, ML Systems

Full-time · Head Office (Farringdon, London) About Us Basecamp Research is dedicated to solving major challenges in the life sciences by exploring Beyond Known Biology. Our teams build frontier AI models using BaseData, the world's largest ethically-sourced and globally representa ...

Electrical Maintenance Engineer Essex

Electrical Maintenance Engineer South Essex (RM18) Commutable from - Grays, Romford, Pufleet, Basildon, Southend-On-Sea, Wickford Monday-Friday Days (08:00-16:30) + 1 in 6 Call Out Rota (24/7) £47,000 (Ri ...

Quantitative Developer

We’re looking for pragmatic, motivated Quantitative Developers to join Squarepoint. You’ll work directly with quantitative researchers and other technologists to build high‑impact tools, analytics, and workflows that support trading, research, and risk processes. You don’t necessarily need ...

Data Scientist

Salary: £60-120k (+ generous early stage equity) Location: Central London, EC1 (2-3 office days/week) The planet has an energy problem. You can help fix it. This London startup is building software that intelligently shifts when energy gets used - coordin ...

Head of Engineering

Elite Talent Resourcing have been engaged by a leading provider in the Plumbing industry to source a Head of Engineering for their office based in Northampton on a permanent basis. As the Head of Engineering you will be responsible for defining, leading and delivering the IT digital strategy as wel ...

Head of Engineering

Elite Talent Resourcing have been engaged by a leading provider in the Plumbing industry to source a Head of Engineering for their office based in Northampton on a permanent basis. As the Head of Engineering you will be responsible for defining, leading and delivering the IT digital strategy as wel ...

Senior RF Engineer

Our client is a fast-growing UK engineering business developing advanced sensing, communications and wireless systems for demanding operational environments. Their work sits at the point where RF hardware, SDR platforms, signal processing and edge‑deployed technology come together to support critical real‑ ...

Quality Engineer

A leading advanced composites and aerospace manufacturing organisation is looking to appoint a Quality Engineer to support quality, compliance and continuous improvement activities across their manufacturing operation in Cambridgeshire. This role would suit a Quality Engineer from the aeros ...

Senior AI Engineer

Company Overview PA Consulting is a global consultancy with more than 4,000 strategists, innovators and technologists. The firm operates across the UK, Ireland, US, Nordics, and the Netherlands, delivering enduring results for clients in sectors such as consumer, manufacturing, defence, energy, f ...

Senior Engineer Stability Control Systems and Driveline

Order Ref: (phone number removed) Position Title: Senior Engineer - Stability Control Systems & DrivelineDuration: 10 Month Contract Location: GaydonRate: £33.88 per hour inside IR35 About the RoleAt Contechs, we are supporting a leading automotive OEM in the s ...

Senior CS&A Engineer

Due to continued growth are currently seeking Senior CS&A Engineers to join our team, these positions support hybrid working and can be based across our office network within the UK - Stockton, Newcastle, Bristol, Gloucester, and Westlakes.Role- Senior CSA EngineerLocation- Stockton, Newcastle, B ...

Senior .NET Engineer: Data AI Backend & Pipelines

A high-growth technology organization in the UK seeks a Senior Software Engineer (.NET) to join their Data & AI team. In this hybrid role, you will develop scalable backend services and data pipelines that turn transactions into valuable insights. Ideal candidates will have a strong systems thinking mindset, exc ...

Senior Civil Design Engineer — Hybrid, London Projects

A reputable consultancy in the heart of London is seeking a Senior Civil Design Engineer to join their growing Development Infrastructure team. This role involves leading the design and delivery of civil engineering projects, including development infrastructure, drainage, and road layout. The ideal candidate ho ...

Senior Python Engineer Math Driven Optimization (Remote)

A leading provider of analytical solutions is seeking a Senior Python Software Engineer with a strong mathematical background. The ideal candidate will design and develop advanced Python-based modules for optimization and analytics, work with modern technologies including SciPy and Pandas, and collaborate with i ...

Senior Infrastructure Engineer Lead Projects (Hybrid)

A leading Civil Engineering firm in Winchester seeks a Senior Infrastructure Engineer to lead projects and mentor graduate engineers. The ideal candidate will have a Bachelor's in Civil Engineering, at least 6 years' experience in infrastructure design, and proficiency in engineering software. This role includes ...

Backend Engineer for AI Driven Sports Analytics

A leading sports analytics company in the UK is seeking a Backend Software Engineer to join their team. This role involves developing innovative insights for tennis analytics, managing databases, and deploying APIs for broadcast partners. Ideal candidates will have experience in Python, cloud technologies like A ...

Hybrid Ultra Low Latency Trading Systems Engineer

A leading algorithmic trading firm in London seeks a skilled Software Engineer to join their world-class engineering team. In this hybrid role, you will design and optimize high-performance trading platforms, collaborating closely with top-tier engineers and quants. Ideal candidates have a degree in Computer Sci ...

Senior Python Engineer — Real Time Data & Distributed Systems (Hybrid)

A leading FinTech firm in London is seeking a Senior Python Developer to work on high-performance solutions involving multi-petabyte data in a hybrid environment. The role requires extensive experience in distributed systems and the opportunity to work with an uncapped tech budget and a collaborative team. Ideal ...

Maritime Networking & Systems Engineer

A leading technology company is looking for a Maritime Delivery Technical System Engineer to oversee hardware installations and software implementations across multiple vessels. The candidate must have a strong understanding of hardware products, marine electrical backgrounds, and the ability to operate in secur ...

Hybrid SRE & Platform Engineer – Quantum Systems

IC Resources is seeking an SRE/Platform Engineer to join their dynamic team in Oxfordshire. In this hybrid role, you'll focus on integrating and maintaining software and hardware systems for quantum computing, collaborating closely with engineers and physicists. The ideal candidate will have extensive ...

Civil Drainage & Infrastructure Engineer (Hybrid)

A leading recruitment agency is seeking a skilled Civil Drainage and Infrastructure Engineer to join a dynamic team in the North West of the United Kingdom. Responsibilities include delivering technical designs, managing project budgets, and liaising with stakeholders. The ideal candidate should have a strong te ...

Python Engineer: Reliability & Automation for Trading Tech

A leading global investment management firm in the UK is seeking a talented Python Engineer to join their Risk & Market Access division. You will play a vital role in enhancing the performance and stability of software systems, working closely on critical applications. Ideal candidates should have over 5 years o ...

Python Engineer – Real Time Trading Systems (HFT)

A leading recruitment agency seeks a Python Software Engineer for a high-frequency trading firm in the UK. This role involves developing systems for real-time market data and trade execution while ensuring performance optimization in a dynamic environment. Ideal candidates should have a minimum of 2 years of Pyt ...

Senior SDET: Embedded & IoT Test Automation Leader

A leading technology-driven organization in the United Kingdom is seeking a highly skilled Senior Software Development Engineer in Test (SDET). The role involves driving automation excellence across embedded and connected device platforms, with a focus on developing and maintaining automation frameworks. The ide ...

Principal Engineer, SuDS & Blue Green Infra

A leading infrastructure consultancy in the UK is seeking a Principal Engineer specializing in sustainable drainage and blue-green infrastructure. The successful candidate will lead urban drainage projects, provide technical oversight, and support engineers in delivering high-quality outputs. Ideal qualification ...

Electrical Design Engineer: On Site & PLC Focus

Hernshead Recruitment Ltd is searching for a highly skilled Electrical Engineer to lead electrical design and implementation for manufacturing processes. This role involves delivering high-quality design packages and ensuring compliance with safety standards. Candidates should have a degree in Electrical Enginee ...

CNC Programmer & Production Engineer — High Precision NPI

Omega is seeking a CNC Programmer / Production Engineer to join their team in Gloucestershire. The successful candidate will produce CNC programs and ensure components are manufactured to the highest standards. You will support NPI development, assist with tooling requirements, and work closely with en ...

Dam Break & Tailings Geotechnical Engineer Hybrid

WSP in the UK & Ireland is seeking an experienced engineer to provide specialized technical input for dam breach and flood modelling projects. This role involves producing detailed reports, managing project delivery, and maintaining client relationships. Candidates should have proven experience in tailings manag ...

Senior Test Automation Engineer – API & UI in SAFe

Infinity Quest is looking for a Test Automation Engineer to design, develop, and maintain automated test solutions for banking applications. The role focuses on ensuring quality and performance through robust testing methods and collaboration with various teams. Applicants should have over 10 years of ...

Senior C#/.NET Engineer — Lifting Systems (Hybrid)

Big Red Recruitment Midlands Limited is looking for an experienced Software Engineer to work in Buckinghamshire. You will develop and optimise a specialist engineering application, support infrastructure, and engage with multiple departments. The ideal candidate will have strong skills in C#, .NET, and ...

Principal Civil Engineer Lead BIM Design & Flexible Growth

SKANSKA is seeking a Principal Civil Engineer in Bridgend to join our Infrastructure team. The successful candidate will oversee project implementation, manage teams, and prepare detailed designs per industry standards. A degree in Civil Engineering is required along with experience in BIM led design and stru ...

Hybrid Naval Control Systems Engineer – Bristol

Rolls-Royce plc is offering an exciting opportunity for a Control Systems Engineer in Bristol with a hybrid working model. The role involves supporting the Defence business in delivering solutions across Naval Marine customers. Responsibilities include system design, hardware/software procurement, and ...

Senior Mechanical Design Engineer: Small Mechanisms

Mechanicaldesigndirectory is looking for an experienced Mechanical Design Engineer specializing in small mechanisms to join their team in Hampshire, United Kingdom. The role involves direct involvement in mechanical design, including concept design and stress analysis. Qualified candidates should have ...

Quality Engineer Test Automation & CI/CD Specialist

TXP is seeking a Quality Engineer to join the Core Modernisation team in the United Kingdom. This role involves designing and implementing test automation solutions while working within agile scrum teams. Responsibilities include applying TDD/BDD methodologies, supporting CI/CD pipelines, and coaching team me ...

Quality Assurance Engineer Hybrid + Test Automation

A fintech start-up is seeking a Quality Assurance Engineer to ensure the reliability and performance of its insurance software platforms. The role involves designing and executing test cases, collaborating with development teams, and utilizing automated testing tools. Ideal candidates will have 2-5+ years in qua ...

Senior Applied AI/ML Engineer — Deploy, Observe & Scale AI

Fairygodboss in the United Kingdom is seeking a Senior Associate, Applied AI/ML Engineer to assist customers in building and deploying AI/ML models. Responsibilities include implementing observability solutions, optimizing data pipelines, and ensuring secure deployment of services. The ideal candidate ...

Rail Control Systems Test Engineer

Tiger Resourcing Group is seeking a Systems Test Engineer to support the Project Engineering team in developing bespoke control systems for managing underground rail networks. This role entails configuring systems, creating documentation, and supporting project delivery to specifications. The ideal can ...

AI Platform Architect – LLM & CI/CD Lead

PHINIA in the UK is searching for a technically proficient engineer to lead components of our AI platform. The role demands expertise in LLM integration and a strong problem-solving approach. Ideal candidates will have a Bachelor’s degree and 4-5 years of software development experience. The position o ...

Graduate C++ Engineer – Computer Vision (Hybrid)

Softweb Resourcing is looking for a Graduate C++ Software Engineer in the UK to join a collaborative team building systems for real-time media. This role is perfect for someone with a strong technical background keen on hands-on engineering work. The successful candidate will engage with C++ and Python ...

End to End Mixed Signal Hardware Engineer

Verso Recruitment Group is seeking a Hardware Design Engineer who is passionate about mixed-signal electronics and enjoys overseeing designs from concept to production. The role involves hands-on work with circuit design, schematics, and PCB layout while collaborating closely with software and mechanical team ...

Project Engineer Diverse Projects & Growth

The American Society of Civil Engineers is seeking a Project Engineer to join their growing team in Frodsham, England. With a salary range of £40,000 - £60,000, the role includes excellent benefits, training, and progression opportunities. The successful candidate will work on varied projects, deliveri ...

Graduate Mechanical Design Engineer Training & Travel

Ernest Gordon Recruitment is seeking a Graduate Design Engineer (Mechanical) located in Stoke-on-Trent, England. The position offers a salary of £28,000 to £32,000 plus additional benefits such as funded qualifications, software training, paid travel, and bonuses. The successful candidate will join a d ...

Hybrid Structural Engineer — Design, BIM & Mentorship

AECOM is seeking a Structural Engineer in the United Kingdom to assist with the structural engineering design of complex projects while managing smaller-scale designs. The successful candidate will work collaboratively within a multidisciplinary team. The role requires a Bachelor's degree in Structural ...

Hybrid DevOps Engineer: Cloud Ops, CI/CD & Automation

Spectrum IT Recruitment is seeking an experienced DevOps Engineer to join a growing technology team in the United Kingdom. This hybrid role combines DevOps, Cloud Operations, and Automation, perfect for someone who enjoys improving software delivery while maintaining production environments. Key respon ...

Senior Embedded Systems Engineer Hybrid PCB & Firmware Lead

IC Resources is looking for a Senior Embedded Systems Engineer in Gloucestershire. This role involves leading all phases of the development of electronics systems, including design, implementation, and testing of embedded software. The ideal candidate will have over 10 years of experience in firmware/e ...

SC Cleared Python Engineer Lead & Data Pipelines

CBSbutler Holdings Limited trading as CBSbutler is seeking a Python Engineer with SC Clearance for a 12-month contract. This role involves working 3 days a week in the office in Leatherhead, focusing on leading edge and bespoke technologies within an interesting, rewarding environment. The ideal candid ...

Remote Production ML Engineer — Scale GenAI & Churn

Utility Warehouse is looking for a production-focused Machine Learning Engineer to bridge the gap between data science research and scalable software. This role involves deploying ML models, developing customer analytics, and ensuring operational excellence. The ideal candidate will have experience in ...

Graduate SDR & RF Engineer

SPECTRUM IT, a growing technology company based in Fareham, is seeking a Graduate Engineer to join its specialist engineering team. This role is ideal for recent Electronic Engineering graduates looking to develop their skills in Software Defined Radio, RF systems, and digital communications. The succe ...

Staff Tech Lead AI Product Architect (Remote + Equity)

Tenth Revolution Group is seeking a Staff Software Engineer / Tech Lead to guide the technical direction of their innovative AI products. You will lead user-facing projects, design systems, and foster the development of a small, agile team. This role is largely remote with occasional commutes to London ...

Hands on Edge Systems Integration Engineer

iO Associates is seeking an Integration Engineer in South East England for a growing advanced engineering company focusing on edge systems and sensors. This hands-on role will involve integrating hardware and software into operational environments while ensuring reliability in real-world applications. ...

🚀 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

    Buffering Video...

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