253,444+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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ML Systems Engineer: Scale RL Training & Infra

A leading tech firm in London seeks an ML Systems Engineer focusing on model training and infrastructure. This role involves developing synthetic data pipelines and managing RL training environments. The ideal candidate has a strong software engineering background, proficiency in Docker and Kubernetes, and exper ...

Data Platform Engineer: Shape Scalable Data Pipelines

Skill2source is seeking an exceptional Software Engineer to join their Data Engineering team in Tipton, England. The role involves designing and building scalable solutions and developing a new data pipeline framework, offering opportunities for professional growth and training. Ideal candidates are pa ...

Senior Node.js Backend Engineer — Product & Scale Impact

A leading tech company in Greater London is seeking a Senior Software Engineer to drive the evolution of their product and engineering capabilities. You will lead major project decisions, work on core features, and ensure system scalability. The ideal candidate possesses strong backend development skills, partic ...

Go Backend Engineer – AI Driven FinTech, Flexible Remote

A forward-thinking FinTech firm in London seeks a Software Engineer (Go) to develop high-performance back-end services supporting financial applications. The ideal candidate will have strong AI integration skills, proficiency in JavaScript and experience with modern development tools. Benefits include 38 days of ...

Frameworks Engineer: PyTorch & Triton Performance

A technology company in the UK is seeking a Framework Engineer to design and support software for machine learning frameworks like PyTorch. The role involves optimizing code performance, developing features, and mentoring junior engineers. Candidates must have experience in C++ and Python development. Benefits i ...

Principal .NET Engineer — AI Driven SaaS Architect

MHR International UK Limited is seeking a Principal Software Engineer to lead complex engineering challenges and influence technical strategy. You will work within cross-functional Agile teams to deliver high-quality outcomes and mentor other engineers. The ideal candidate will have strong experience with Micros ...

Education IT Engineer (Onsite) School Tech Support

Agilisys seeks a Schools ICT Engineer for onsite support at a secondary school in St Helens. This role involves ensuring smooth daily IT operations, providing support to staff and students, and maintaining high service quality. The ideal candidate should have strong technical skills in Windows operatin ...

Mid Senior Hybrid .NET Engineer for E commerce

A leading IT consultancy in Normanton is looking for a passionate Software Engineer to join their growing team. You will work on building digital solutions for e-commerce platforms while collaborating with experienced engineers in a supportive environment. This hybrid role offers a competitive salary of up to £6 ...

Systems Integration Project Engineer (SC Clearance)

Gold Group is seeking a Project Engineer in Bristol to support the delivery of integration tools to customers and work with various teams to ensure timely project delivery. Responsibilities include collaborating within an agile team, deploying software on COTS hardware, and ensuring compliance with safety doc ...

Senior Backend Engineer Greenfield Real Time Hospitality

A global technology company is seeking a talented Backend Software Engineer to join their team based in London. The successful candidate will design and develop high-performance backend systems for the hospitality-tech industry. This is a great opportunity to work on greenfield projects and collaborate with cros ...

Web Security & Backend Engineer (PHP/Go, Cloud)

A leading technology recruitment agency is seeking a Software Engineer to join their team in Fareham. You will be responsible for planning and developing security solutions, backend development, and using modern development practices. The ideal candidate will have solid experience in object oriented programming ...

Senior Structural Engineer — Bridges & Major Civil Projects

Amey seeks a Senior Structural Engineer based in Motherwell, Scotland, to join their Bridges teams. You will be pivotal in delivering significant civil engineering projects worth over £1bn, collaborating with various stakeholders including Transport Scotland and Local Authorities. The role requires expertise in ...

Senior Civil Engineer Urban Development

A leading engineering consultancy in Wales is looking for a Senior Engineer with expertise in civil engineering and urban development. This role will support projects in areas such as drainage, highways, and utilities while managing integrated solutions across teams. Ideal candidates will have a degree, project ...

Senior .NET Engineer — Lead, Build & Mentor (Remote Ready)

A tech company in the UK is seeking a Senior .NET Engineer to lead software quality and vision for clients. You will tackle large-scale projects, mentor junior developers, and collaborate in a dynamic team environment. Ideal candidates should have strong skills in .NET, JavaScript, TypeScript, and extensive expe ...

Staff Frontend Architect & Platform Leader

A leading tech company in Scotland seeks a Staff Frontend Software Engineer to own the frontend architecture and lead quality standards. In this role, you'll shape decisions on performance, scalability, and accessibility while mentoring fellow engineers. You'll work closely with Product and Design teams to drive ...

Senior .NET Engineer Remote/Hybrid Tech Leader

慨正橡扯 in Leeds is seeking a Senior .NET Engineer to champion software quality and technical vision. You will work on large-scale projects and help develop junior and mid-level developers. The ideal candidate will bring .NET expertise, strong problem-solving skills, and experience in mobile application d ...

Senior Aero Thermal Engineer – Cooling Systems

A leading motorsport team is seeking a Senior Aerodynamics Engineer (Thermal) at their Silverstone facility. The successful candidate will develop aerodynamic cooling solutions, analyze CFD data, and collaborate on the aerodynamic thermal development plan. Ideal applicants will have experience in motorsport, pro ...

Junior Electronics & IoT Firmware Engineer

A recruitment agency is seeking a Junior Electronics Engineer in the UK to support product development in Smart Technology. Ideal candidates should be graduates in Electronics or related fields, equipped with skills in electronics, firmware, and software. Main duties include testing and developing products, part ...

Senior AI Core Services Engineer Cloud Native Azure

A global technology services company based in Cambridge is seeking a Senior Engineer to join their Core AI Services team. This role involves designing and developing AI-enabling platform services on Microsoft Azure. Candidates should have over 10 years of software engineering experience, particularly with cloud- ...

Hybrid Senior Highway Drainage Engineer – Lead Schemes

A leading engineering firm is seeking a Senior Drainage Engineer in Shrewsbury to lead complex drainage projects. The role involves feasibility studies, detailed designs, and ensuring compliance with regulations. Candidates should have experience in drainage design, familiarity with relevant specifications, and ...

Remote First Backend Engineer End to End Platform

A dynamic tech startup is seeking a Software Engineer to join their remote-first team in London. The ideal candidate will have 5+ years of experience and a passion for ownership and problem-solving. Responsibilities include collaborating across the tech stack from frontend to backend. The position offers a compe ...

Founding Full Stack AI Engineer — Shape AI at Scale

C&D Talent Advisory is looking for a Mid-Senior Software Engineer to join a fast-growing AI company in London. This role involves building core product features and requires expertise in Python and TypeScript. The ideal candidate will have experience in high-growth startups and a strong ownership minds ...

Senior Python Backend Engineer — AI Driven Fintech (Remote)

Hunter Bond is seeking a Python Software Engineer to join a rapidly scaling fintech unicorn in London. The role involves designing and maintaining backend systems for AI-driven financial technology products. You will collaborate with cross-functional teams and have significant technical ownership. Comp ...

Lead Kubernetes Platform Engineer for Scalable AI Clusters

Anthropic is seeking an experienced engineer to own and operate the Kubernetes scheduler and scale their control plane in London. You will collaborate with cloud providers, build core cluster services, and ensure system reliability while debugging complex issues. Ideal candidates will have significant software e ...

Contract Embedded Design Engineer SC Cleared, Hybrid

A specialized engineering organization in Northamptonshire is seeking a Contract Embedded Design Engineer for a 6-month engagement with a daily rate of £400. The ideal candidate will have over 5 years of experience in embedded software development, particularly in C and C++. Knowledge of FPGA design is required, ...

Electrical Design Engineer Industrial Control Panels

A global manufacturing company is seeking an Electrical Design Engineer to join their Birmingham team. Responsibilities include the design and technical support of industrial control panels, ensuring design compliance with standards, and collaborating with suppliers. The ideal candidate will have a strong backgr ...

Senior OHL Design Engineer – Transmission Projects

Iberdrola, S.A is seeking a Lead Engineer OHL in Cambuslang to deliver engineering solutions for Transmission networks projects. This role involves managing complex projects while guiding less experienced staff and ensuring compliance with Health, Safety, and Quality standards. The successful candidate ...

Senior C++ Engineer — Graphics & GPU R&D

Platform Recruitment is seeking a Senior Software Engineer in Cambridge offering a salary of up to £75,000 (DoE). In this role, you will write high-performance C++ code, establish modern development practices, and collaborate closely in a high-energy team. The ideal candidate will have over 4 years of commercial ...

Senior Backend Engineer Healthcare Data Marketplace

A healthcare data platform company is seeking a Software Engineer to enhance backend systems for healthcare data management. The ideal candidate has over three years of experience, strong programming skills in Python, and comfortable with both structured and unstructured data. This role offers competitive compen ...

Enterprise API Solutions Engineer — Pre Sales Leader

A leading API platform company is looking for an experienced Enterprise Solutions Engineer in the UKI region. You will collaborate with sales and product teams to support enterprise customers by providing technical expertise throughout the sales cycle. Ideal candidates have over 5 years of software engineering e ...

Senior HV Cable Design Engineer – Substations & renewables

A leading engineering consultancy in Birmingham seeks a pro-active individual to join the Cable team focused on electrical substation design, major renewables, and HVDC interconnectors. The ideal candidate will have a Bachelor’s or Master’s in Electrical Engineering, experience as a civil substation engineer, an ...

Senior Staff Engineer: Data Streaming & Event Driven Architecture

A leading sportswear company is looking for a Staff Software Engineer to enhance event-driven architectures and drive the development of data streaming. The role involves mentoring junior engineers and collaborating with global teams. Candidates should have over 5 years of experience in scalable systems and exte ...

Trading Platform Python Engineer — High Impact Tech

A diversified trading firm is seeking a skilled Software Engineer to enhance their trading platform. The successful candidate will manage proprietary trading systems, write performance-sensitive Python code, and collaborate across teams to implement effective technology solutions. A Bachelor's or Master's degree ...

Staff Embedded Engineer ESL & Bluetooth Systems

Qualcomm is seeking a strong Software Engineer to join our Electronic Shelf Label team working on QCC710-based platforms. This role involves significant autonomy as a technical leader across firmware and hardware, influencing product direction. Responsibilities include maintaining production firmware, ...

Customer Facing Deployment Engineer

An innovative tech company in Greater London is seeking a Forward Deployed Engineer to support customer deployments and enhance their software testing platform. This role combines engineering and customer interaction, requiring strong programming skills and effective communication. Ideal candidates will have a c ...

R&D Engineer: Electromechanical Systems & Simulation

ghd is looking for an engineer for their Cambridge office to utilize hands-on skills in building and troubleshooting complex systems. The role requires a Bachelor's or Master's degree and at least 2 years of experience, preferably in consumer electronics. Key responsibilities include system prototyping, data ana ...

GenAI Tooling Engineer — Flexible Hours, Scale DevTools

RELX is seeking a mid-level GenAI Tooling Engineer to support the operationalization of AI-driven developer tools across the organization. This full-time role involves configuring tools like GitHub Copilot and Codex, along with providing support and improving the tools used by developers. Ideal candidates will h ...

Founding AI Control Engineer for Greenhouse Ops

Optimal Agriculture is seeking a Founding Forward Deployed Engineer to connect AI systems with greenhouse operations in Greater London. You will engage with growers, monitor production behavior, and build tools to enhance onboarding and customer interactions. Candidates should possess strong communication skills ...

Senior AI Research Engineer — Edge AI & Multimodal Vision

A leading AI solutions provider is seeking a Senior AI Research Engineer in London. The role involves developing state-of-the-art AI products by improving training algorithms and multimodal LLMs. Candidates should have over 5 years of software engineering experience with proficiency in Python, and strong experti ...

Senior Backend Architect Ultra Scale Data Platform

A leading data and AI firm in Greater London seeks a Senior Staff Software Engineer to design and maintain backend systems that power their platform. Must have over 15 years of experience in distributed systems and a strong foundation in algorithms. The role includes technical leadership, mentorship, and project ...

Valve Design Principal Engineer: Technical Authority & Impact

AL8238 UK Grid Solutions Limited is seeking a Principal Engineer to lead valve design projects, ensuring safety and compliance with international standards. The role includes mentoring junior engineers and supporting the Valve Engineering team. The ideal candidate should have a degree in Electrical Eng ...

Senior Civil Engineer & Technical Lead for Complex Projects

A leading UK contractor is seeking a Principal Engineer to lead complex civil engineering projects. This role focuses on technical delivery, innovation, and mentoring within a supportive environment. Candidates should possess strong technical knowledge in engineering and construction standards, be proficient in ...

Geotechnical Lead: Underground Tunnels & Structures

A leading engineering consultancy in Greater London is seeking an experienced Principal Geotechnical Engineer to lead the geotechnical design of underground tunnels and shafts. You will work on innovative projects, ensure compliance with design standards, and mentor junior engineers. The ideal candidate has exte ...

Principal Civil Engineer Lead Sustainable Highway Design

A leading engineering consultancy is seeking a Principal Engineer to lead innovative civil engineering projects. The role involves managing multi-disciplinary designs for highways and drainage, mentoring junior engineers, and engaging with clients to deliver effective solutions. The ideal candidate will have str ...

Senior AI Engineer — Build AI First Travel Platform Hybrid

A leading technology company based in Manchester is seeking a Senior AI Engineer to join their innovative team. You will play a crucial role in integrating AI into travel solutions, focusing on scalable API development and intelligent features. Ideal candidates should have strong experience in .NET Core and LLM ...

Developer Experience Engineer: Build DevTools for LLMs

Fractile Ltd in Bristol is seeking a Developer Experience Engineer to enhance developer tools for optimising large language models on their cutting-edge hardware. The ideal candidate will have strong software engineering skills, excellent Python expertise, and experience with systems languages. A degre ...

Senior Lead Data Engineer: Real Time AI Driven Analytics

JPMorgan Chase is seeking a Lead Software Engineer in Greater London to drive innovation in data engineering and automation. You will lead technical initiatives across global teams, designing scalable solutions for real-time trading and analytics. Ideal candidates will have substantial experience in Py ...

FPSO Pipe Stress Engineer | Caesar II Specialist

A leading staffing agency is seeking an experienced Pipe Stress Engineer to join a project in Leatherhead, England. This role requires significant experience in oil and gas projects, especially with FPSO units. The candidate must have proficiency in Caesar 2 software to perform essential piping stress calculatio ...

Automation First SDET for Government Digital (Hybrid)

Scrumconnect Limited in Swansea is seeking a Software Development Engineer in Test (SDET) for a role focused on automated testing within digital services for government clients. You will design and build test frameworks and ensure integration within CI/CD pipelines. The ideal candidate will have proven ...

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