283,741+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Security Clearance Software Engineer Android & Backend

Addition is looking for a skilled engineer in Farnborough to design and develop secure software solutions. The role involves building Android applications and backend services using Kotlin, Rust, Python, or Go, while collaborating closely with various teams. With a focus on continuous improvement, you ...

SoC Systems Software Engineer Kernel & Prototyping

Apple is seeking a Systems Engineer for their Platform Architecture group in Cambridge, UK. In this role, you'll design and build high-performance functional models of advanced SoC designs while collaborating with cross-functional teams. You will help bridge the gap between hardware and software, influencing ...

Embedded Firmware & Software Engineer – Rail Signalling

Unipart Technologies Group is seeking a Firmware/Software Engineer to join their team in Stockport. This role involves designing and implementing innovative solutions for signalling and train control systems within the railway engineering field. Key responsibilities include writing firmware for embedde ...

Software Engineer, Data in London Kharon

Software Engineer, Data London, United Kingdom Posted 10 months ago Tech stack Django FastAPI Python ecosystem Flask NumPy REST Requirements Authorization to work in your country of r ...

Low Latency E Trading Software Engineer

For additional information, please review .**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make ...

Senior Software Engineer Backend, Developer Publications

Summary Posted: 23 Apr 2026 Weekly Hours: 35 Role Number: The documentation engineering team is responsible for creating world‑class developer tools and framework‑level support for the documentation workflows on the developer website and Xcode. We’re looking for ...

Automotive Software Validation Engineer: HiL & AUTOSAR

Expleo is looking for an experienced Automotive Software Test & Validation Engineer in Guildford, UK. This key role focuses on ensuring the quality and safety of embedded software in modern vehicles. You will develop and execute testing strategies in an Agile environment, collaborating closely with cross-func ...

Senior Software Engineer QA Entertainment Release

We believe in better. And we make it happen.Better content. Better products. And better careers.Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate. ...

Senior Software Engineer (Real Time Embedded)

Job Description: Real Time Embedded Software Engineers – Capability Green Luton Your Impact Are you a passionate Real-Time Embedded Software Engineer with a few years of experience and looking to take the next step in your career? Do you want to work for an e ...

Senior Research Software Engineer, Web Development

About the role We are seeking a Senior Research Software Engineer (RSE) to lead software development on web projects related to research within the Department of Infectious Disease Epidemiology (DIDE), School of Public Health, Imperial College London. This post is hosted within the Department’s R ...

Senior Software Engineer Systematic Trading Infrastructure

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading ...

Senior Software Development Engineer in Test

Why PlayStation? PlayStation isn’t just the Best Place to Play — it’s also the Best Place to Work. Today, we’re recognized as a global leader in entertainment producing The PlayStation family of products and services including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, acclai ...

Senior Software Engineer: Architect Trading Systems

A leading recruitment agency is seeking a Senior Software Developer in Greater London to architect and enhance in-house trading systems. This role involves developing high-performance applications primarily using C# and .NET, mentoring junior developers, and leading architectural discussions. Candidates should h ...

Senior Software Engineer — Greenfield Projects & Mentorship

Uniting Ambition is looking for a Senior Software Engineer to join a progressive team in Greater Manchester. This role emphasizes engineering best practices such as TDD and OOP, requiring a passion for clean, high-quality code and continuous improvement. You will collaborate closely with team members, ...

Specialist, Software Engineer 12 Month FTC

At McLaren, our mission is to set the standard for high performance in sport. And everyone, in every part of the team, has a role to play. So if you want to test your ideas with the world watching... And measure your progress in milliseconds... And play your part in racing history... You belong here. High ...

Structural Engineer – Technical Support & Software Applications

This is a varied and hands‑on role, ideal for a structural engineer who enjoys problem‑solving, communicating technical concepts, and working closely with both customers and developers. As a 1st Line Support Engineer / Software Applications Engineer, you will be the first point of contact for techn ...

Senior Software Engineer, Cloud Native & MLOps

A technology consulting firm in the City of London is seeking a skilled Cloud Infrastructure Engineer. You will own cloud infrastructure, architect scalable APIs, and collaborate with ML engineers on model serving. The ideal candidate has over 5 years of experience in cloud-native environments, including experti ...

Senior Software Engineer, Trading & Tools — Hybrid

bet365 is looking for a Senior Software Developer to collaborate with our skilled team on our cutting-edge Sports Trading Platform. You will lead the development of a range of applications, including desktop solutions and backend services. This role offers a hybrid working model and the opportunity to ...

C++ Software Engineer Air Defence, Bristol

Endeavour Recruitment is looking for a Software Engineer C++ to work onsite in Bristol. This role involves the design and development of advanced Command and Control architectures for next-generation Air Defence Systems, demanding a proactive individual who thrives under pressure. The ideal candidate w ...

Senior Software Engineer Storage & Compute Stability

Senior Software Engineer - Storage & Compute Stability Location London Business Area Engineering and CTO Ref # Description & Requirements About the Team The Storage and Compute Stability Team is a trusted partner in ensuring the reliabil ...

Principal Electronics and Software Product Engineer

Principal Electronics & Software Product EngineerLocation: Cambridge, CambridgeshireAn exciting opportunity has arisen for a Principal Electronics & Software Product Engineer to join Springboard Pro Ltd, a specialist product design consultancy focused on developing innovative technologies ...

Senior Software Engineer, AI/ML Integration

Integrating scalable production-grade AI / ML systems into engineering applications Guildford; to £80,000 plus benefits This engineering software company are integrating AI and machine learning features into their application suite, and seeking a skilled tradi ...

Software Engineer C# .Net Low Latency

Software Engineer / Developer (C# .Net Low Latency) London to £90k Are you a technologist who enjoys contributing to technical discussions and using the best tool for the job? You could be progressing your career at a global, financial Market Data provider whilst enjoying a ran ...

Senior Algo Trading Software Engineer (VP)

Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job O ...

Principal Software Engineer C++ / Unreal / Defence

Principal Software EngineerPortsmouth | Hybrid, 3 days onsite£75,000-£85,000 plus bonus and benefits Want to work on groundbreaking projects within the defence industry? Are you a hands-on technical leader with strong C++ and Unreal Engine expertise and want to work at the forefront of comp ...

Senior Software Engineer, GenAI & LLM Apps

Tesco is hiring a Senior Software Development Engineer III to lead the development of GenAI powered products in a hybrid environment. This role involves translating complex business challenges into effective production-grade solutions while ensuring reliability and user satisfaction. Candidates should ...

Founding Software Engineer Up to £200K

We’re working with an early-stage startup building AI voice agents used by real businesses (not demos). This is a true founding engineer role — you’ll have a direct hand in shaping the product, architecture, and how the company builds from day one. What you’ll be doing Build ...

Senior Software Engineer C++ Trading Technologies

The team Join our Exchange team and start building the internet of money. The Exchange team is responsible for everything to do with the trading backend services such as the matching engine, market data gateways, internal and external APIs, margin systems and various other trading services. The t ...

Quantum Software Engineer Hybrid, UK Based

A national laboratory for quantum computing in Oxfordshire is seeking two Software Engineers to enhance the UK’s quantum capabilities. You will collaborate with leading scientists and work on software for quantum computing systems. Strong skills in C# and .NET are essential, along with a relevant degree. This ro ...

Senior Software Engineer Distributed Risk Engine

Citigroup Inc. is looking for a Senior Engineer to take on the role of Applications Development Technology Lead Analyst for the XiP calculation platform. The position requires extensive knowledge of Java and experience in building and maintaining distributed systems. The successful candidate will desig ...

Software Engineer – Web Apps & Platform Modernisation

Aviva is looking for a Software Engineer in Sheffield or York to develop and maintain web applications within a collaborative team. This role offers an opportunity for career growth, participating in the modernization of legacy tech and implementing new projects. The ideal candidate will have experienc ...

C++ Software Engineer Command & Control Systems

AEROCONTACT in Bristol seeks a C++ Software Engineer to contribute to developing next-generation air defence systems. This hands-on role involves designing command and control architectures and collaborating with stakeholders to refine solutions. The ideal candidate will have a strong software engineer ...

MOD DV Cleared Senior Software Engineer

MOD DV Cleared Senior Software Engineer Permanent Location: Portsmouth / Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python / C++ / Legacy Modernisation / Complex Systems, MOD DV Clearance We are looking to ...

Principal Software Engineer, Policy Platform & AI

Menlo Security Inc. is seeking a Principal Software Engineer I for the R&D Policy Team in Bracknell, UK. This role involves architecting critical services in a cybersecurity context, focusing on policy management and enforcement. The ideal candidate will have extensive experience in backend development, cloud ...

Senior Software Engineer II Send Core

Job DescriptionAbout the role:We are looking for a Senior Software Engineer to join our Send Core team.We provide the critical infrastructure that every sending transaction flows through - from 10 pounds sent to a friend to a multi-million dollar business payment ...

Senior Staff+ Software Engineer, Node Infra

About the roleAnthropic's Infrastructure organization is foundational to our mission of developing AI systems that are reliable, interpretable, and steerable. The systems we build determine how quickly we can train new models, how reliably we can run safety experiments, and how effectively w ...

Staff Software Engineer, Product Engineering, UK

About the RoleHi, I’m Abhik, Ashby’s Co‑Founder and VP of Engineering. We’re looking for an ambitious full‑stack engineer who is laser‑focused on solving customer problems and making the right long‑term investments to solve them not only today but in our future features and products.What ...

Staff Software Engineer, Guest & Host Europe

Traveltechessentialist is looking for a Staff Engineer in the United Kingdom to lead the development of major subsystems. You will be responsible for creating product features and ensuring operational efficiency. The ideal candidate will have over 9 years of experience in software development, specializing in ba ...

Senior Software Engineer in Glasgow Spire

Key Skills:Familiarity with Linux, including Bash scripting and basic system administrationFamiliarity with Javascript development and at least one Javascript frameworkExperience writing web backendProficiency using and developing containers fo ...

Senior Software Engineer Systematic Trading Infrastructure

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading ...

Senior Research Software Engineer, Web Development

About the roleWe are seeking a Senior Research Software Engineer (RSE) to lead software development on web projects related to research within the Department of Infectious Disease Epidemiology (DIDE), School of Public Health, Imperial College London. This post is hosted within the Department ...

MOD DV Cleared Senior Software Engineer

MOD DV Cleared Senior Software Engineer Permanent Location: Portsmouth / Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python / C++ / Legacy Modernisation / Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology ...

Microsoft Dynamics365 F&O Software Engineer

Microsoft Dynamics 365 F&O Software Engineer - Senior Consultant Salary: £70,000 - £80,000 pa + benefits, perks and healthcare options Job Type: Permanent - Hybrid Locations: London, Manchester, Glasgow, Woking, Birmingham, Newcastle, Telford, Liverpool Overview: Join a team delivering some of the most exciting ...

Junior Embedded Software Engineer – R&D

Cubic Corporation in Camberley is seeking a motivated Junior Developer to join their dynamic R&D team. The successful candidate will work on the Vocality RoIP, contributing to networking, LTE, and Push-To-Talk radio communications. This opportunity is perfect for those eager to expand their skills in s ...

Manager software engineer in London Agiloft

Experience and SkillsExperience achieving compliance with accessibility standards (WCAG, etc.)Strong analytical and critical thinking skills and ability to work within a team-oriented environmentStrong experience in CI/CD practicesExtensive exp ...

Senior Staff+ Software Engineer (Kubernetes Platform)

About AnthropicAnthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leade ...

Impactful Embedded Software Engineer (Contract) – Bristol

Matchtech is seeking an experienced Application Software Engineer for a 12-month contract in Bristol. The role focuses on developing and testing a Command and Control application system.Key responsibilities include collaborating with teams to integrate algorithms, deploying applications, and ensuring s ...

Senior Software Engineer, Billing & Tax Automation

Are you a Software Engineer who thrives on real ownership?At Perk, we know that we feel most fulfilled when we can own the problem and the solution. This means taking responsibility for the entire lifecycle of a feature, from understanding our customers' pains with our product team, d ...

Senior Software Engineer Build Scalable Solutions

A leading tech company in London is seeking an experienced software engineer to design, build, and maintain AI-first software solutions. The ideal candidate has over 5 years of experience, expertise in TypeScript and Python, and a passion for creating impactful software. You will closely collaborate with the fou ...

Graduate Software Engineer: AI & Networking Systems

A leading technology firm is seeking a dynamic Software Development Engineer in Cambridge, UK. Ideal for recent graduates, the role involves validating software features, collaborating with teams, and contributing to next-generation software for networking solutions in a hybrid work environment. Candidates shoul ...

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    Fullstack Software Engineer Java React Aws Jobs in United Kingdom Job Search Guide, Trends and Insights