301,523+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Senior Mechanical Engineer | BIM & Building Services Lead

A leading engineering consultancy in Manchester is seeking a Principal Mechanical Engineer to join their MEP team. This role involves leading mechanical design projects and managing engineers, ensuring compliance with both client requirements and industry standards. Candidates should have significant experience ...

Principal GenAI & ML Architect for Production AI

Anaplan Inc is looking for a Principal Machine Learning Engineer in Greater London. In this role, you will lead the architecture, design, and deployment of scalable AI systems. Your work will empower business users to leverage GenAI within their planning workflows, demanding both deep ML knowledge and softwar ...

Staff ML Benchmarking & Reliability Engineer

Graphcore is seeking an experienced ML Engineer to join their team in Greater London. This role focuses on testing, validating, and benchmarking a complex machine learning software stack, ensuring performance, reliability, and correctness across modern AI workloads. The ideal candidate will have strong ...

Senior Design Engineer – Foundations for Major Infra (FTC)

Bouygues Construction is looking for a Senior Design Engineer to deliver foundation design solutions for temporary and permanent works across major projects in Ipswich, UK. This role emphasizes technical excellence and accountability, making use of specialist software to produce safe and efficient designs. </ ...

ML Engineer, Privacy‑Preserving Photo AI

APPLE in Cambridge is seeking an experienced Machine Learning Engineer to develop privacy-respecting AI algorithms for Photos. You will contribute to enhancing the best photo app experience worldwide as part of a collaborative team. The ideal candidate will have a strong background in machine learning, ...

Enterprise AI Deployment Engineer — UK (Hybrid/Remote)

A leading AI solutions provider is seeking a Forward Deployed Engineer to join their team in the UK. This hybrid role involves working closely with enterprise clients to design and deploy AI applications, building data pipelines, and serving as a trusted technical advisor. The ideal candidate will have 3 to 7+ y ...

Senior Platform Lead: Real Time Telemetry & Security

Rise Technical in Winchester is seeking a Senior Software Engineer to take end-to-end ownership of a complex real-time platform. This principal-level role involves leading a TypeScript-based microservices platform and a large Angular application used in critical environments. The ideal candidate will h ...

Secure by Design Cyber Engineer Hardware & Embedded

Expleo Group is seeking a Cyber Engineer to join their Belfast team. You will provide cybersecurity expertise across hardware and software engineering projects, ensuring security is integrated throughout the project lifecycle. The ideal candidate has relevant education or certifications, strong underst ...

Lead Hydraulics Engineer – Water & Infrastructure, Flexible

A leading global engineering consultancy is seeking a Senior/Principal Hydraulic Engineer in Glasgow. This role demands expertise in hydraulic engineering and fluid mechanics, focusing on complex water solutions and technical leadership. You will use advanced analysis software to lead projects, mentor junior sta ...

Lead Front End Engineer, AEM & UI Architect

JPMorgan Chase & Co. is hiring a Lead Software Engineer to join their Markets Technology team in Glasgow, Scotland. The role involves developing and implementing high-quality components and workflows in Adobe Experience Manager (AEM), building user interfaces with modern frameworks, and leading evaluation sessio ...

Senior AI/ML Engineer Hybrid London | Equity & Bonus

A product-led technology company in London is looking for a Senior AI / Machine Learning Engineer. In this role, you will design, build, and deploy AI-driven systems using state-of-the-art technologies. Candidates should have 4+ years of experience in software engineering or AI, strong skills in Python, and hand ...

Senior AI Engineer Build AI Driven Internal Automations

Lendable is looking for a hands-on AI Engineer to join their Internal Automation team in Greater London. In this role, you'll develop AI-powered integrations and tools to enhance efficiency across the company. The ideal candidate will have 4+ years of software engineering experience with strong skills in Python ...

Embedded Digital Design Engineer Hybrid & Flexible Work

MBDA Missile Systems is seeking an Embedded Digital Design Engineer to work on innovative projects at our Stevenage site. The role involves developing complex embedded digital systems, from initial design to integration and testing. Ideal candidates will hold a degree or equivalent qualification and have a backg ...

Senior AI Research Engineer Ocean Data & Models

A leading oceanographic research institution in the UK is looking for an AI Research Software Engineer to develop AI infrastructure and models that advance marine sciences. This full-time role offers the opportunity to lead teams and work within a vibrant community focused on innovative oceanographic research. T ...

Senior Full Stack Engineer — Hybrid, Public Sector Impact

Informed Solutions is looking for a Senior Full Stack Software Engineer to lead the design and delivery of impactful digital solutions for public sector clients. With over 5 years of experience, the successful candidate will own service delivery, contribute to architectural decisions, and mentor junior engineers ...

Go Backend Engineer — AI‑Powered FinTech

A leading FinTech company in the UK is seeking a Software Engineer (Go) to develop high-performance back-end services for financial applications. The ideal candidate will have a Bachelor’s in Computer Science and experience with JavaScript, HTML, and CSS. Proficiency in integrating AI tools into development proc ...

Senior Rust Engineer for Open Source Embedded Systems

lowRISC is seeking a skilled software engineer with a strong proficiency in Rust programming to join our team in Cambridge, UK. The role involves developing firmware and toolchains, contributing to projects such as Ibex CPU and OpenTitan. Ideal candidates will possess solid knowledge of the Rust ecosystem, along ...

AI Interfaces & API Engineer

Anthropic is looking for a skilled software engineer to join the Claude.AI product team. This role involves building innovative APIs and interfaces that facilitate interactions with advanced AI models. Collaborate with a talented team to redefine human-machine collaboration and work on cutting-edge AI product ...

VP, Low Latency Trading Systems Architect

Citi is seeking a Software Engineer in London to join the Equities Electronic-Execution technology team. This role involves designing and developing next-generation low-latency execution platforms that encompass algorithmic trading and market data processing. The candidate will collaborate with a cross ...

Staff Backend Engineer | Go Microservices & Scale

A tech-focused company in Greater London is hiring a Staff Backend Engineer to take a leadership role in their engineering team. In this position, you'll tackle complex technical problems, influence the architecture of their backend stack, and guide engineering decisions. Ideal candidates have over 10 years of e ...

Senior Platform Engineer Cloud Infra & Scaleouts

Cogna, located in Greater London, is on the lookout for a seasoned Platform Engineer to join their innovative team. The ideal candidate will have over 10 years of cloud platform experience, a strong software engineering background, and expertise in tools like Terraform and Kubernetes. This role offers a unique o ...

ML Systems Research Engineer (Hybrid) London

A leading AI research firm is seeking a passionate Software Engineer for a hybrid role in King's Cross, London. The position focuses on advancing machine learning and AI technologies, with responsibilities including conducting cutting-edge research and collaborating with cross-functional teams. Candidates should ...

Backend API Engineer | Remote, Equity, Travel Allowance

Duffel is hiring a Software Engineer to join their team in London. This role is focused on building tools for travel distribution and booking through a seamless API. You will work on the core API that powers millions of travel bookings, ensuring high standards in design and developer experience. This p ...

Automation QA Engineer – End to End & Integrations

A technology solutions firm in England is looking for a skilled software quality assurance engineer to collaborate with cross-functional teams. The ideal candidate will have a Master's degree in computer science, strong experience in QA automation, and proficient in SQL. Responsibilities include creating test st ...

Europe Payments Engineer – Open Banking & APIs

Plaid is looking for a Software Engineer to join their Europe team in Greater London. In this role, you will develop and enhance Europe-specific payments and credit products, working closely with diverse teams across the company. Responsibilities include iterating on new products, understanding client needs, ...

Senior Platform Engineer: Build Scalable Cloud Platforms

A leading technology firm in Budock Water is looking for a Senior Platform Engineer to lead the design of key components in a modern digital service platform. You will collaborate with various teams, ensure high-quality software delivery, and contribute to significant projects in Defence and National Security. I ...

Lead Backend Engineer Node.js | Build Scalable Solutions

A technology delivery consultancy in the UK is seeking a Lead Backend Engineer to join their team. The successful candidate will be responsible for producing scalable and robust software solutions, collaborating closely with stakeholders, and leading projects as required. Candidates should have proven experience ...

Remote Full Stack Engineer Azure & SaaS Platform

A leading digital publishing business is looking for a Full Stack Engineer to create and evolve platforms that deliver content and data. This fully remote role offers a salary of up to £70,000, with flexibility for the right candidate. You will work across the software development lifecycle using Azure and JS, c ...

C++ Messaging Systems Engineer (Hybrid, London)

ASHDOWN GROUP is seeking a C++ Software Engineer to join their growing team in South West London. This role offers the opportunity to work on critical messaging products in a hybrid environment, ensuring compatibility across multiple protocols. Candidates should have solid C++ experience, a degree in a ...

Senior Embedded Firmware Engineer — Defence UAS (Remote)

A leading aerospace technology firm in the United Kingdom is seeking an experienced Senior Embedded Software Engineer to design and develop embedded firmware for advanced counter-drone technology. You will work primarily in a remote capacity but must be eligible for UK Security Clearance, having resided in the U ...

Graduate Optical Engineer: Design Next Gen AI Optics

Oriole Networks in Paignton is seeking an Optical Engineer to design, build, and test optical systems for high-precision instruments. The role involves collaborating with mechanical, electronic, and software engineers, along with utilizing cutting-edge technologies for optimal performance. Key qualifications inc ...

Senior HV Cable Design Engineer Renewable & Grid Projects

A global engineering consultancy seeks an experienced HV Cable Design Engineer to join their Energy Team in Greater London. The role involves responsibilities in electrical substation design and major renewable projects like HVDC interconnectors. Candidates should possess a relevant degree in Electrical Engineer ...

Senior Planning Engineer: AMP8 Water Delivery Leader

Poutrix is looking for a Senior Planning Engineer to lead and develop planning capabilities for AMP8 water programmes. The role requires expertise in implementing robust planning processes, collaborating with project teams, and enhancing performance reporting. The ideal candidate will possess strong le ...

Senior RF & Signature Reduction Engineer – Barrow (On site)

Gold Group is looking for an experienced RF Engineer in Barrow-in-Furness to lead the development of advanced stealth capabilities. You will work on radar, infrared, and visual signature reduction, contributing significantly to the UK's defence. Key responsibilities include collaborating with teams, defining ...

Senior Principal Front End Engineer for Chiplet SoC

Software Placements is seeking a Senior Principal Digital Front-End Design Engineer to join a leading Multinational Semiconductor Company in Edinburgh, Scotland. You will be at the forefront of innovative Silicon programs, providing technical leadership within a skilled team. The ideal candidate will p ...

Senior Civil Engineer Hybrid Infrastructure Design

Energy Jobline ZR is seeking an experienced Senior Civil Engineer to join their Hemel Hempstead office. This role involves conducting site appraisals, developing design details, and providing technical support for planning. The firm offers a competitive salary, flexible and hybrid work arrangements, and a ben ...

Senior Performance Controls Engineer – UK

Canadian Solar SSES (UK) Ltd. is seeking a Senior Performance Controls Engineer to join their team in Greater London. The successful candidate will troubleshoot complex issues and drive corrective actions during facility operations. This role demands a detail-oriented individual with a strong analytica ...

Founding Solutions Engineer – Fintech Payments (Hybrid)

A leading fintech company is seeking a Founding Solutions Engineer to join their hybrid team in London. This role offers the opportunity to define technical partnerships and deliver solutions in the fast-evolving world of card payments powered by stablecoins. Candidates should have 5–10 years of experience in so ...

Lead Backend Engineer – Cloud, APIs & Scale (Hybrid)

慨正橡扯 is seeking a Lead Software Development Engineer to join our backend team in Nottingham. This permanent position offers hybrid work flexibility, with three days a week in the office. The ideal candidate will have proven technical leadership experience, exceptional programming skills, and a strong backgrou ...

Staff AI/ML Platform Engineer – Reference Data

Addepar in Edinburgh is looking for a Staff Software Engineer specializing in AI/ML to join their Reference Data team. You will manage data reconciliation and curate market data to enable innovative solutions that transform the wealth technology landscape with AI. This high-impact role involves archite ...

Senior AI Augmented Full Stack Engineer

BNY Mellon is seeking a Senior Associate, AI-Augmented Full-Stack Engineer to join their team in Manchester. This role will focus on leveraging AI tools and cloud-native technologies to enhance financial services. Ideal candidates are eager to learn and collaborate with seasoned engineers in an innovative env ...

Healthcare IT Integrations Engineer: EHRs & HIPAA

A healthcare technology firm in Birmingham is seeking an experienced Integration Engineer to join its technical team. In this role, you will be responsible for developing and maintaining integrations with various healthcare systems, ensuring compliance with regulations. The ideal candidate holds a Bachelor's deg ...

Lead Cloud Engineer

Zaizi is looking for a Cloud Engineer with experience working across National Security (This role will require active eDV Clearance.) We are looking for someone who has demonstrable experience of automating the software delivery pipeline within a highly scalable syst ...

Senior Python Engineer & Platform Tech Lead

A tech-driven financial services firm is looking for a Senior Engineer to lead the technical execution of projects. You will mentor junior developers and collaborate with teams in operations and finance to design innovative solutions. The ideal candidate has at least 8 years of experience in software development ...

Senior Full Stack Engineer for AI/ML Prototyping (London)

Autodesk is seeking a highly skilled Senior Full Stack Software Engineer to join our London team. In this role, you will develop and maintain both backend and frontend applications while supporting machine learning and AI systems. You'll collaborate with research scientists and ML engineers to rapidly prototype ...

Senior AI Engineer Production Grade LLM & Agent Systems

A financial services company in Greater London is seeking a Senior AI Engineer to design and deliver AI systems integral to their business processes. This hands-on role involves building production-grade solutions utilizing LLMs and agentic systems, contributing significantly to the technical direction and archi ...

Senior Automation QA Engineer Remote & Flexible

A leading technology solutions provider in Northern Ireland is seeking a Software Engineer in Test to join their agile team. The ideal candidate will have experience in both manual and automated testing across various frameworks. This role offers a comprehensive benefits package focused on employee wellbeing, ca ...

Senior Traffic Engineer: Shape Future Transport

A leading engineering firm is seeking a Senior / Principal Traffic Engineer to shape future transport solutions in Birmingham. This role involves delivering robust transport strategies and mentoring junior engineers while ensuring compliance and safety. With a hybrid working model, you will guide multidisciplina ...

Senior Test Engineer — Automate Quality in Cloud Apps

Kainos is looking for a Senior Test Engineer to join their agile team in Belfast, Northern Ireland. In this role, you will develop and execute tests to ensure that application software meets user needs, while also learning new technologies. Kainos is committed to a people-first culture that values diversity a ...

Real Time Risk & P&L Tech Lead Python & Cloud

JPMorganChase in Greater London seeks a Senior Lead Software Engineer to innovate in Global Credit Trading Technology. You will architect real-time risk and P&L systems, collaborating with traders and analysts to enhance trading platforms while ensuring low-latency performance. The ideal candidate has ...

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