278,321+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Senior SDE: Developer Experience & Platform Advocate

Capital One is seeking a Senior Software Development Engineer in Nottingham. You will enhance software delivery processes and advocate for developers across teams. As part of a hybrid model, you'll work in the office three days a week. Responsibilities include improving CI/CD adoption and engaging with ...

Algorithms Engineer (MATLAB/ADA) — High Integrity Systems

A leading engineering recruitment firm is seeking an experienced Algorithms Software Engineer to join their Bristol team. This full-time position involves transcoding legacy algorithms from ADA to MATLAB and collaborating with algorithm engineers in a regulated environment. The ideal candidate should have a back ...

Graduate Engineer: AI/DevOps & Embedded Systems

A leading technology firm in the UK is looking for a Graduate Engineer for the role of IA Software and DevOps. This position includes working on various innovative projects in AI, embedded software, and systems engineering. You will receive extensive training and have opportunities to lead small teams. Successfu ...

Lead Platform Security Engineer | DevSecOps & SBOM Expert

A leading financial services firm in Greater London seeks a Lead Security Engineer to embed security into engineering processes. This role involves designing scalable security solutions, collaborating with engineering teams, and improving software supply chain security. Candidates should have hands-on experience ...

Senior AppSec Engineer — Lead Secure SDLC & Equity

A global loyalty service provider based in London is seeking a Senior Application Security Engineer to lead the application security practice. You will collaborate closely with engineering teams, integrating security practices and tools into the software development lifecycle. The ideal candidate has strong soft ...

Senior Infrastructure Engineer: Build Scalable Cloud Systems

A leading fintech company in Greater London is seeking a Senior Software Engineer specialized in Infrastructure. The role involves deploying and maintaining software, automating deployment processes, and developing observability tools. Candidates should possess 5+ years of experience, a degree in a technical fie ...

Lead Python Engineer for Front Office Quant Trading

A leading financial services firm in the Greater London area is hiring a Lead Software Engineer to work on trading and investment projects. You will collaborate with developers, quants, and traders, focusing on developing engines, services, and APIs while applying disciplined code management. Candidates should h ...

Autonomy Robotics Engineer ROS 2, C++, Python

A leading robotics firm in England is seeking a Robotics Software Engineer to develop and maintain autonomy software for robotic systems. The ideal candidate will have strong experience with ROS 2, C++, and Python, with an emphasis on engineering excellence and collaboration. The role involves hands-on deploymen ...

Senior ML Research Engineer Hybrid & High Impact

Thomson Reuters is looking for a Senior Research Engineer to develop and deliver high-quality software solutions, focusing on machine learning and data processing pipelines. The ideal candidate will have over 5 years of software engineering experience, deep knowledge of Python, and experience integrating ML solu ...

Field Service & Commissioning Engineer Industrial Controls

A growing engineering company in Norwich is seeking a Service/Commissioning Engineer to test hardware and software for control systems and travel to client sites for installation and commissioning. The ideal candidate will have experience in industrial process and control systems and knowledge of Rockwell and Si ...

Android Engineer: Kotlin, Jetpack Compose & Cloud

Searchability is seeking a Software Engineer to join their team in Cheltenham. The role focuses on developing Android applications and scalable backend services using modern technologies like Kotlin, Jetpack Compose, and various programming languages. This position is based onsite, with occasional trav ...

Senior AI Platform Engineer Hybrid (London/Peterborough)

Compare the Market is seeking a Senior Software Engineer (AI Native Platforms) to lead designing and implementing software that supports AI technologies. This role will focus on creating scalable and maintainable systems while mentoring other engineers. Successful candidates will have backend development experie ...

Reinforcement Learning Research Engineer – Hybrid UK

InstaDeep Ltd is looking for a Research Engineer specializing in Reinforcement Learning to work in London. The role involves translating industrial knowledge into optimization problems, collaborating with clients, and engaging in high-performance software development. Candidates should have proven expe ...

Senior Embedded Firmware Engineer for AI/FPGA

IC Resources is seeking a highly skilled Senior Embedded Software Engineer based in Cardiff to join a dynamic start-up in the semiconductor sector. In this position, you will focus on developing essential firmware and software for FPGA-enabled and AI-driven electronic systems. The ideal candidate will ...

Senior Python Engineer — AR/VR Data Capture Systems

A global technology firm based in London is seeking an experienced Software Engineer to join their Reality Labs research team. The role involves developing software for prototype wearable devices and optimizing data collection platforms. Candidates should have over 8 years of experience, strong Linux skills, and ...

Senior ML Platform Engineer for AI Drug Discovery Remote

A next-generation pharmatech firm in London seeks a Senior ML Software Engineer to build and scale their platform-facing product managing predictive models. The ideal candidate will have over 6 years of experience in software engineering with a strong focus on machine learning systems. You will work at the inter ...

Senior AppSec Engineer – Stores Platform Security

Amazon is seeking a Senior Security Engineer to enhance security for various software projects. The role involves collaboration with software development teams, conducting security code reviews, creating threat models, and developing automation tools. The ideal candidate will possess a strong backgroun ...

Hybrid Scotland Security Test Engineer | Threat Modeling

A recruitment agency is seeking a Security Test Engineer to ensure the security robustness of software and firmware components. Responsibilities include threat modeling, security testing, and conducting vulnerability assessments in compliance with industry standards. The ideal candidate should have over 5 years ...

Senior Backend Engineer Health Data Platform (London)

A healthcare technology firm is seeking a Software Engineer to build backend systems and manage large healthcare datasets. The ideal candidate has over 3 years of experience in software engineering, particularly in backend development and data infrastructure. Responsibilities include designing data pipelines and ...

Senior Solana Infrastructure Engineer

A blockchain R&D lab in Greater London is seeking a Senior Software Engineer to enhance their Agave client and improve the Solana network's performance. The role requires a Bachelor’s degree in Computer Science or Engineering, along with 3+ years of experience in core infrastructure software and systems programm ...

Senior Frontend Engineer High Performance Trading UI

Miller Maxwell Ltd is recruiting a Senior Frontend Software Engineer for a leading electronic trading firm in Greater London. This role involves owning front-end development for high-performance trading platforms and collaborating with traders and backend developers. The ideal candidate will hold a deg ...

Senior Python Backend Engineer FinTech, Hybrid London

Signify Technology is seeking a Senior Software Engineer to join a fintech company in London. This role involves designing scalable backend applications and collaborating closely with teams to enhance business-critical platforms. Ideal candidates will have over 5 years of experience, strong skills in P ...

Senior C++ Modelling Engineer: Virtual Platforms Architect

Arm is seeking a Modeling Engineer in Cambridge, UK, to develop efficient software models that represent functional aspects of Arm hardware components. This hybrid role involves collaboration with architects and engineers, testing, and maintaining high-speed models. Qualified candidates should possess strong ski ...

Clinical AI Engineer: Build Seamless UK Healthcare Workflows

Heidi Health Ltd is seeking a Software Engineer to enhance UK healthcare integration with their AI Care Partner. This role involves building clinical workflow systems and turning complex healthcare requirements into seamless user experiences. Candidates should have 2-4 years of software engineering experience an ...

Staff ML DevTools Engineer (Python/C++, PyTorch)

Arm is seeking a Staff Software Engineer located in Cambridge, UK. In this role, you will design and build developer-facing tools, collaborating with teams to enhance usability and performance. The ideal candidate will have proven experience in software development, proficiency in Python and C++, and familiarity ...

Rust Systems Engineer: Build Custom Distributed Storage

G-Research in London is seeking a software engineer to join their Basecamp Technology group. You will design a storage abstraction layer and build a custom distributed storage platform that supports large-scale research. The ideal candidate possesses strong software engineering skills, ideally with Rus ...

Senior Embedded Engineer: RTOS, Device Drivers & Wireless

Hexwired Recruitment Limited is seeking a Senior Embedded Software Engineer to join a rapidly expanding electronics manufacturer near Fleet, with a salary of £90k. This role involves collaborating with a seasoned team on innovative R&D projects and requires substantial experience in embedded software development ...

Principal Site Reliability Engineer

Principal Site Reliability Engineer Location: Reading- Hybrid working (2-3 days onsite) Salary: £95,000 (plus bonus) Clearance: Active SC clearance required This role is a senior technical role focused on ensuring large-scale software systems and platforms ar ...

Full Stack Engineer AI Driven Field Operations Platform

Centrica is seeking a Software Engineer to enhance Field Operations Platform. You'll be responsible for developing high-quality software solutions and collaborating with cross-functional teams to optimize customer demand fulfillment. This role requires hands-on experience with C#, .NET Core, SQL, and A ...

Senior ML Benchmarking & QA Engineer

Graphcore in Cambridge is looking for an ML QA Engineer to test and benchmark a complex ML software stack. The role is focused on ensuring performance, reliability, and correctness across contemporary AI workloads. The successful candidate will work in a fast-paced environment, testing industry-standar ...

Engineering Lead, Identity & Authentication Platform

A leading financial services provider is seeking an experienced software engineer to join their Channels Enabling Platform. This role involves translating business requirements into technology solutions while leading teams to deliver high-quality designs. Candidates should have a robust background in software en ...

Staff Platform Engineer: Build Internal DevOps PaaS

慨正橡扯 is seeking a passionate Staff Software Engineer to join their team in Greater London. You will build high-quality, reliable platforms for engineers that drive automation and improve practices across the company. The ideal candidate will have deep experience in cloud infrastructure, particularly in ...

Onsite IT Support Engineer – Southampton

A leading business management software provider in Southampton is seeking a Site Support Engineer to deliver onsite technical support and manage IT infrastructure. You will ensure service level agreements are met while providing excellent customer service to internal staff. The ideal candidate has experience wit ...

Technical Lead: Agile Engineering & Digital Transformation

PA Consulting is seeking a lead engineer in Bristol to guide software engineering teams through innovative projects. This role involves working closely with clients, mentoring engineers, and applying agile methodologies to drive successful digital transformations. Ideal candidates will have a solid bac ...

Senior Python Engineer Product Lifecycle Owner (Remote)

A leading UK-based tech company is looking for a Senior Software Engineer to take full ownership of its software product. This role involves leading development projects from concept to deployment, focusing on quality and scalability. Candidates should have over 5 years of Python experience, strong cloud archite ...

MOD DV Cleared Test Automation Engineer Hybrid

DataCareers is seeking a MOD DV Cleared Test Automation Engineer in Portsmouth. This hands-on role involves owning the test approach for software maintenance and upgrades. Applicants should have strong experience in software testing, particularly automation and regression testing. The ideal candidate w ...

Backend Engineer Multi Tenant SaaS (TypeScript)

PTC Inc. is looking for a Backend Software Engineer based in Cambridge, UK. You will design and maintain scalable software solutions, collaborating with cross-functional teams to support PTC's platforms. Ideal candidates have 3+ years of experience, strong proficiency in TypeScript and Node.js, and a b ...

Senior Software Architect Equity Market Making Platform

Rex Technologies GmbH in Greater London is seeking a Senior Software Engineer to lead technical delivery in Equity Market Making Trading platform. Candidates must have over 10 years of experience in software engineering, expertise in DevOps, and familiarity with cloud-native architectures. This role requires str ...

Senior Simulation Engineer: Real Time C++ & AI Driven

Frontier Resourcing is seeking a Simulation Software Engineer in London, responsible for designing simulation capabilities for defence training. You'll engage with a cross-functional team, implementing real-time behaviours for simulated entities using C++. Ideal candidates will have extensive software ...

Senior ML Benchmarking & QA Engineer

Graphcore is seeking an experienced ML Engineer to focus on testing and benchmarking a complex ML software stack. The ideal candidate will have strong experience with machine learning systems, a solid understanding of AI concepts, and proficiency in Python. You will work with industry-standard ML frame ...

Trading Technology Engineer: High Performance Platforms

JPMorganChase is seeking a Software Engineer in Asset Management Trading Technology to design and build scalable trading systems. You will collaborate closely with Traders to create high-impact solutions and drive technical innovation. The ideal candidate has experience with Kafka and a solid understan ...

Senior Python Backend Engineer – Drive Horizon Features

A financial technology company in Greater London is seeking a Python Software Engineer to join their Client Success Team. This role involves delivering high-impact features for the Validus Horizon platform, collaborating with stakeholders, and leading initiatives. The ideal candidate has 3-5 years of software de ...

Software Quality Lead .NET/C# | Onsite NY

NPAworldwide in Manchester, England, is looking for a Software Engineer to ensure code quality in a Microsoft environment. The role includes testing applications and determining if they meet business requirements. Applicants should have at least five years of experience in software development, strong ...

Principal AI Platform Engineer & Innovation Leader

Autodesk is looking for a Principal Software Engineer to join their AI Platform team in Greater London. The role involves creating advanced AI tools enhancing customer experiences while leading innovative projects in a dynamic engineering environment. The ideal candidate will have over 10 years of expe ...

Senior Full Stack AI Engineer for GenAI in Production

Orbis Group is supporting a top FinTech firm to build their AI Centre of Excellence. They seek a Senior Full-Stack AI Software Engineer to join a growing team and implement AI solutions that add real business value. The ideal candidate should have 5+ years of experience in Software Engineering, particu ...

Data Science Engineer — Production ML & Tooling Innovator

Medialab Group is seeking a Data Science Engineer to support the development of software and tools for the Marketing Effectiveness team. The role entails maintaining Python tools, managing workflow automation, and enhancing technical solutions that drive innovation. The ideal candidate should have stro ...

AI Platform Engineer: Cloud Native APIs & LLMs

SoCode Limited is seeking an experienced Software Engineer in Milton, England. The role involves designing and scaling AI-enabling platform services and public APIs that are secure and reliable. Candidates should have extensive experience in software engineering, particularly with Microsoft and .NET technologies ...

Remote Controls Test Engineer CAD/CAE Design & Validation

Siemens Energy is seeking an engineer to join their dynamic team in Lincoln, UK, playing a crucial role in designing product components and functional systems. The role includes creating complex layouts, analyzing manufacturing processes, and refining designs using CAD software. Qualified candidates sh ...

Research Engineer, Drug Design AI (Remote + Equity)

A pioneering AI drug design company based in London is seeking an experienced research engineer to design and develop cutting-edge algorithms for drug discovery. In this role, you'll collaborate with diverse teams, build production-quality software, and significantly impact product improvements. The ideal candid ...

Lead QA Engineer — Hybrid, Drive Quality & Release

A technology recruitment firm based in Nottingham seeks a Lead QA Engineer to enhance software quality and assist in shaping testing strategies. This hybrid role allows flexible working arrangements, while the ideal candidate will have strong experience with TypeScript, modern testing frameworks, CI/CD, and lead ...

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