2,204,613+ 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 Design Engineer 3D BIM & CRE (Rail)

Spencer Group in Hull and East Yorkshire is seeking a Senior Design Engineer with over 6 years of experience in civil and structural engineering. The role involves providing design solutions, working with design software, and ensuring compliance with industry standards. The ideal candidate will have a ...

Principal GenAI & ML Platform Architect

Anaplan in Greater London is looking for a Principal Machine Learning Engineer to lead architecture, design, and deployment of AI systems. This role involves building production-ready AI features and optimizing model inference for complex planning tasks. The ideal candidate will have extensive hands-on ...

Senior Test Design Engineer — Hybrid York, UK

Adtran is seeking a skilled Senior Test Design Engineer at our York office to develop and implement functional tests for our products. The role involves designing software and hardware for test frameworks, automating tests in C++ and Python, and troubleshooting test equipment. The ideal candidate holds ...

Pre Silicon Modelling Engineer — AI Accelerator Systems

Fractile is seeking a Hardware Modelling Engineer to develop pre-silicon models for AI acceleration hardware. This role focuses on crucial architectural and performance modeling aspects, enabling collaborative efforts with hardware, software, and ML teams. Ideal candidates will have depth of knowledge ...

Senior Radar Systems Engineer: Phased Array & DSP Leader

Expert Employment is seeking a Senior Radar Systems Engineer to join their team in developing advanced radar systems. The role involves modeling, designing, and analyzing radar systems, while also supporting hardware and software development and creating digital signal processing algorithms. The ideal ...

Principal Cybersecurity Engineer — Hands on at Scale

A global financial services organisation is seeking a Principal Cybersecurity Engineer to help build the next generation of data-driven security capabilities. This senior (Director grade) position requires deep cyber expertise and elite software engineering abilities. The role involves working on compl ...

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 ...

Lead Electrical Engineer for Complex Building Systems

Hoare Lea is seeking a Principal Electrical Engineer in Manchester to lead design delivery for building services projects. This role involves managing internal teams, client relationships, and ensuring technical quality. The ideal candidate will be chartered, with in-depth knowledge of electrical desig ...

Autonomous Lead Mechanical Design Engineer — Own Projects

Prime Appointments is seeking a Senior Mechanical Design Engineer to take ownership of product development projects in Newmarket. This role involves leading new product design from concept to manufacturing, ensuring projects meet quality and budget standards. The ideal candidate will have 5+ years of e ...

Device Engineer — Wafer Tech & TCAD Innovation

IC Resources is seeking a Device Engineer in Manchester to design new products and processes. This role involves developing technologies for improved performance and manufacturability, and solving customer problems related to product usage. The ideal candidate will have experience with wafer fabricatio ...

Geotechnical Engineer Waterfront (Junior to Mid)

A leading infrastructure advisory firm in the UK is seeking a Geotechnical Engineer to join their team. The ideal candidate should have at least 4 years of experience in geotechnical engineering, performing design services for waterfront structures such as piers and wharves. Key responsibilities include performi ...

Senior Embedded Networking Firmware Architect

Advanced Micro Devices in Cambridge is seeking a Senior Software Engineer to design and implement embedded firmware for networking products. In this role, you will collaborate with cross-functional teams to tackle challenges and refine systems architecture. The ideal candidate has over 20 years of expe ...

Site Automation Engineer: PLC/SCADA Expert

A leading manufacturing company in Runcorn is seeking a Site Automation Engineer to oversee the automation, controls, and electrical systems of the production plant. Responsibilities include developing and maintaining software for PLCs and SCADA systems, as well as training engineers. The candidate should have a ...

German Speaking Solutions Engineer, DACH

Ashby is hiring a Solutions Engineer in Oxford to enhance sales efforts with DACH customers. The role emphasizes deep product knowledge, personalized demonstrations, and strong communication. Candidates should possess significant sales experience within EMEA, fluency in English and German, and an understanding o ...

Senior Lead Java Engineer — Spring, Microservices & Secure Systems

JPMorganChase in Glasgow is seeking a Senior Lead Software Engineer to enhance and deliver technology products in Prime Finance Services. You will leverage your expertise in Java and lead diverse teams to create secure, scalable solutions. Collaboration, innovation, and a culture of inclusiveness are e ...

Senior Open Pit Mining Engineer — Global Projects & Growth

SRK Consulting is looking for a Senior Open Pit Mining Engineer in Cardiff, UK. This role involves providing consulting services, managing open pit studies, and engaging with clients. Candidates should possess a degree in mining and relevant experience in a mining environment. Essential qualifications ...

Impactful Java Engineer (Spring) for Health Tech

OASIS Group is offering multiple Software Engineer opportunities, allowing you to be part of a growing and innovative organization. This is an exciting chance for motivated engineers to contribute to important projects that advance human health using modern technologies. Ideal candidates will have a de ...

Hybrid Senior DevOps Engineer: Cloud Automation & CI/CD

Netcompany Group is seeking a DevOps Engineer in Leeds to enhance software quality and delivery through effective tool usage and team collaboration. With a focus on stakeholder management and business needs, this role requires strong experience in AWS and CI/CD processes. The ideal candidate will have ...

Mechanical Engineering Degree Apprentice Test Tech (Lvl 6)

Cummins Inc. in Huddersfield is looking for an enthusiastic Mechanical Engineer Apprentice to join our Engineering team. The role involves working closely with engineers to design test equipment, conducting mechanical designs using CAD software, and supporting the test facility's infrastructure operation. </p ...

UI/AI Photo App Engineer — SwiftUI & Memories

APPLE is seeking a Software Engineer in Cambridge to develop innovative user interfaces for the Photos app. You'll collaborate across teams to build AI-driven user experiences, focusing on creating visually stunning interactions. The role demands a strong background in user interface development and familiarity ...

Senior Systems Engineer Scale, Cloud, Impact (Flexible)

Eligo Recruitment Ltd in Westminster is seeking a talented Senior Systems Engineer to design, develop, and maintain software solutions. The role involves collaborating with engineers and stakeholders in an Agile environment to enhance platform performance and address technical challenges. You will play ...

Systems Integration Engineer – Hardware Deployments

Carbon 60 is seeking a Systems Integration Engineer based in Gloucester to support a leading defence organization. This role involves deploying software onto hardware, collaborating with engineering teams, and ensuring system quality through rigorous testing and validation. The ideal candidate will hav ...

Platform Services Engineer: Windows & Cloud Specialist

Whitbread is seeking a Platform Services Engineer to support systems across our centers and manage our Windows 10/11 environments. You will deploy, manage, and update software while enhancing network efficiency and security. The ideal candidate will have proven experience in a Microsoft Hybrid Cloud en ...

Senior Platform Engineer (GCP) — Scale, Automate & Lead

hackajob in Birmingham is seeking a Senior Platform Engineer - GCP to lead the design of modern digital service platforms. In this collaborative environment, you will work with cross-functional teams to build and deploy software that is scalable and secure. Candidates should have strong skills in autom ...

Senior Java Backend Engineer – Real Time, Low Latency, WFH

Client Server Ltd. is looking for a Backend Software Engineer / Developer in London, offering a salary up to £100k along with a competitive benefits package. You will work on complex, real-time trading systems within a supportive Agile team. The ideal candidate has strong Java backend experience, with ...

LLM Research Engineer – Foundational AI & Data Pipelines

A global information provider is seeking a Machine Learning Research Engineer to join their innovative team. This role involves designing robust systems for training and evaluating large language models as well as collaborating with world-class researchers. Successful candidates will hold a relevant degree and h ...

Staff Product Engineer – End to End HealthTech Platform

Accurx Limited in London is looking for a Product Engineer to take ownership of features from concept to implementation. You will engage with NHS GPs and practice staff to solve real problems while ensuring product reliability and safety. This role necessitates strong expertise in software development ...

Quant Research Engineer — Power Cutting Edge Research Tools

A diversified digital asset investment firm seeks an experienced Quantitative Research Engineer to enhance research efficiency. The role demands 4+ years of experience in developing alpha strategies, a master's or Ph.D. in a relevant field, and expertise in software engineering, data science, and machine learnin ...

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 ...

Data Architect Migration & Tech Lead (Java/Scala/Python)

Migration Approach Data integration approach Experience Being a hands-on data architect (only when needed) with program languages Java, Scala , and Python. Accenture is a global professional services company offering expertise in digital, cloud, and security solutions ...

Data Architect in London Accenture

Migration Approach Data integration approach Experience Being a hands-on data architect (only when needed) with program languages Java, Scala , and Python. Accenture is a global professional services company offering expertise in digital, cloud, and security solutions ...

Senior DevSecOps Lead: Artifact & Supply Chain Security

S&P Global is looking for a DevSecOps Engineer specializing in Artifact Management & Software Supply Chain Security. The role involves securing enterprise artifacts throughout CI/CD pipelines, implementing policies for dependency management, and collaborating with engineering teams to ensure compliance with s ...

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 ...

Hybrid Python Engineer Frontline Trading Systems

Saragossa in Greater London is recruiting a Python Software Engineer to join their trading firm. This role offers a blend of in-office and remote work, allowing flexibility while working with a smart team on critical applications used daily by trading professionals. The ideal candidate should have stro ...

Senior Storage & Compute Reliability Engineer

A leading financial data and analytics firm in London is seeking a Senior Software Engineer to ensure reliability in cloud storage and compute infrastructure. The role involves monitoring and optimizing services, collaborating with teams to develop solutions, and driving automation. Ideal candidates have strong ...

Founding Engineer Build AI Native Platform with CTO Path

An innovative SaaS company in Manchester is seeking a Founding Engineer to redefine their product for the AI era. This pivotal role involves leading the development of an AI-native platform, collaborating with founders to set technical direction and making strategic architectural decisions. The ideal candidate h ...

Lead Electrical Engineer – Complex Building Services

A prominent engineering consultancy in Leeds is seeking a Principal Electrical Engineer to lead the delivery of sustainable solutions for diverse projects in the built environment. This role involves managing design teams, ensuring quality and timely delivery, and fostering client relationships. The ideal candid ...

Principal Engineer: Next Gen Digital Experiences (Hybrid)

A leading tech company in London is looking for a Principal Software Engineer to lead the technical direction on innovative projects. This senior hands-on role requires expertise in both backend and frontend technologies, system architecture, and strong leadership skills. You will own the technical strategy acro ...

Senior AI Platform Engineer – GenAI & Health ML

Flo Health is seeking a Senior Software Engineer with expertise in AI/ML infrastructure to join their AI Platform team. You will contribute to building the GenAI platform that powers AI features at Flo. The role involves developing evaluation frameworks, maintaining AWS infrastructure, and ensuring pro ...

Senior Low Latency Robotics Video Engineer – Equity

A venture-backed robotics startup in London is seeking a talented Software Engineer to develop innovative low-latency video streaming and networking infrastructure for humanoid robots. Join a small, elite team and solve high-stakes engineering challenges that enhance the safety and capability of robotic systems. ...

Senior Product Engineer — Build AI Driven SaaS at Scale

A leading AI Customer Service company in Greater London is seeking a Product Engineer to solve customer problems with technical expertise. You will be part of a multidisciplinary team, writing Ruby code while enhancing a robust platform for millions of users. Ideal candidates should have over 5 years of software ...

Principal Cybersecurity Engineer — Hands on at Scale

A global financial services organisation is seeking a Principal Cybersecurity Engineer to help build the next generation of data-driven security capabilities. This senior (Director grade) position requires deep cyber expertise and elite software engineering abilities. The role involves working on compl ...

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 ...

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 ...

🚀 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