254,871+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Platform Engineer National Security (Hybrid, Clearable)

Forwardrole is seeking a Platform Engineer to join a growing engineering consultancy focused on secure software delivery in National Security. The role involves designing and building secure infrastructure and supporting cloud-native platforms. With a hybrid work model and a clear progression pathway, ...

Mobile & Web QA Engineer — Automation & CI/CD

PRA GROUP, INC. is looking for a QA Engineer to ensure the quality and performance of its mobile and web applications. You will collaborate within Agile squads, contributing to CI/CD pipelines and automated testing for effective release management. The ideal candidate has over 3 years of experience in ...

DevOps Engineer On Prem VMware/Proxmox, Ubuntu, CI/CD

Rapiscan Systems is seeking a passionate DevOps Engineer to join their Software team in Salfords, UK. The role focuses on designing and maintaining deployment pipelines for complex multi-VM environments using tools like VMware ESXi and Proxmox. Candidates should have strong Linux and Ubuntu experience, alongside ...

Digital Design Verification Solutions Engineer

A leading software and technology company in the UK is seeking a highly motivated Application Engineer to support customers in Digital Design Verification. This role requires strong technical verification skills and customer engagement to drive the adoption of their verification solutions. The ideal candidate wi ...

Lead Data Platform Engineer Asset & Wealth Mgmt

A leading financial services provider in Greater London is seeking a Lead Software Engineer to design and implement innovative data and analytics solutions. You will work on automation and data ingestion while collaborating with various stakeholders. Ideal candidates will have experience with public cloud analyt ...

Global Payroll Systems Engineer II

Rippling is seeking a Software Engineer II to join their Global Payroll team in Greater London. In this role, you will enhance their full-service payroll platform and build features that address complex technical challenges. With over 3 years of engineering experience, your responsibilities will includ ...

Principal ML Platform Engineer Reliability & Scale

A biotech AI company in Greater London is seeking a Senior or Principal Software Engineer to ensure the reliability and scalability of their ML platform. The successful candidate will be responsible for leading platform reliability strategies, managing GPU/TPU infrastructure, and optimizing inference services. A ...

Senior DevSecOps Engineer: Secure CI/CD & Tooling

A payment and software service provider in Greater London is seeking a Senior DevSecOps Engineer. In this role, you will embed automated security controls into CI/CD pipelines, design internal security tooling, and promote secure engineering practices. The ideal candidate will have over 5 years of experience in ...

Remote AI Tooling Engineer: Accelerate Dev with LLMs

A cutting-edge AI startup is seeking an AI Developer Tooling Engineer to lead AI integration across engineering teams. The role involves building an AI-assisted development stack and infrastructure to enhance developer velocity. Ideal candidates will have deep experience with AI coding tools, solid TypeScript sk ...

Senior Python DevOps Engineer for High Performance Trading

A leading trading firm in Greater London is seeking a dynamic software engineer to enhance their quantitative trading teams. The role involves ensuring production servers are configured properly, writing and maintaining python infrastructure, and addressing trading operational issues. Ideal candidates will posse ...

UK Security‑Cleared Platform Engineer – Cloud & IaC

A growing technology company in the UK is seeking a Platform Engineer to design, build, and operate secure platforms for software systems. The role requires strong engineering fundamentals and an openness to learning new tools. Candidates must be UK citizens with at least 10 years of residency and high-level sec ...

Staff Golang Engineer — AI Platform & Edge Deployments

A global AI solutions provider is seeking a Staff Software Engineer to maintain and evolve their SeeWare Platform. The ideal candidate will have extensive Golang experience and strong containerisation skills. Duties include developing and monitoring applications for AI solutions, ensuring stability and scalabili ...

Senior Python Engineer – Remote Analytics Platform

A leading consultancy in technology solutions is seeking a Senior Software Engineer. This role involves building scalable and resilient architectures for analytics platforms, collaborating with cross-functional teams, and utilizing tools like Docker and Kubernetes. The candidate should have a strong background i ...

DV Cleared Data Science Engineer | Hybrid UK

A public sector consultancy is seeking a Data Science Engineer to join their team in Manchester or London. In this role, you'll design and maintain data processing systems while supporting data science and machine learning initiatives. Ideal candidates have a solid software engineering background and DV clearanc ...

Senior Applied ML Engineer — Generative AI & Vision (Hybrid)

Roku, Inc. in Cambridge is seeking a Senior Applied Machine Learning Engineer to design, build, and deploy innovative media systems. You will work across the software lifecycle, developing scalable ML pipelines, ensuring that your work enhances content and advertising experiences. The ideal candidate h ...

System Test Engineer Robotics Tooling & CI/CD

A leading company in logistics solutions located in Wallingford is seeking a System Test Engineer. This role requires experience in hardware and software blended environments, proficiency in programming with Python or Go, and strong debugging skills. Responsibilities include unifying tools, building CLI tooling, ...

Customer‑Facing Forward Deployed Engineer

Condukt is seeking a Forward Deployed Engineer in Greater London. In this role, you'll work directly with clients to design, deploy, and enhance solutions using our platform, influencing the product roadmap based on customer insights. The ideal candidate will have over 3 years of experience in software engineeri ...

Senior Application Security Engineer Secure DevOps & SDLC

HealthHero is seeking an Application Security Engineer to lead security across the software development lifecycle. You will embed automated security testing into CI/CD pipelines, enabling development teams to ship secure code effectively. This role will involve working closely with engineering teams in ...

Senior Unity Graphics Engineer — Real Time Rendering Lead

A leading gaming company based in London is seeking an experienced graphics software engineer to enhance the visual quality of Football Manager. The role involves designing rendering systems in Unity, optimising shaders, and collaborating with artists on high-quality graphics solutions. The ideal candidate has 1 ...

Hybrid Full Stack Engineer (C#/.NET & Angular)

A leading betting technology provider in St Albans is seeking a Full-Stack Software Engineer to join their team. In this role, you will work on microservices and web-based platforms using C#/.NET and Angular. The position offers a competitive salary, hybrid working options, and a focus on work-life balance. Cand ...

Autonomy Simulation Engineer

Auterion is seeking a Software Engineer focused on Modelling and Simulation to build simulation, analysis, and test tools for autonomous systems. You will work with PX4/APX4 simulation and control, improving system performance through simulation data analysis. This role is ideal for engineers who enjoy ...

Founding ML Engineer: Build a Living Semantic Layer

JetBrains is looking for a top-class ML Engineer to shape the future of software development through AI and ML technologies. You will define the research agenda and own the AI engineering stack. Responsibilities include designing LLM solutions and establishing MLOps practices. The ideal candidate should have at ...

Backend Engineer – Real‑Time Energy Platform

A well-funded green energy startup is looking for an Entry-level Backend Engineer in London. You will play a critical role in architecting digital infrastructure for a cutting-edge energy platform, focused on global decarbonization. This position offers a unique opportunity to work on innovative technology in th ...

Principal Civil & Structural Engineer — Flexible & Charter

A progressive consultancy in Bristol is seeking a Principal Civil/Structural Engineer to lead diverse engineering projects. You will be instrumental in designing and delivering heavy civil structures, engaging with stakeholders, and managing multidisciplinary teams. Candidates should possess extensive experience ...

Senior HV Cable Design Engineer – Substations & renewables

A global engineering consultancy in the UK is seeking an experienced engineer to join their Cable team in Bristol. The selected candidate will be involved in electrical substation design for major renewable projects. Candidates should have a degree in Electrical Engineering, experience in civil substation engine ...

IGA Senior Engineer/Architect SailPoint IAM Leader

A leading security consultancy in London seeks a Senior IGA Engineer or Architect with extensive experience in SailPoint and Identity Governance & Administration. This role involves designing and delivering IGA solutions, engaging with clients, and ensuring compliance with security requirements. Candidates shoul ...

Senior AI Engineer, Build In House Agentic AI for Finance

La Fosse is seeking a hands-on AI Engineer in Greater London to develop in-house AI capabilities for managing $50B+ in assets. You will create RAG systems, work with LLMs, and build production APIs using Python. Ideal candidates will have 1-2+ years in AI engineering, 4 years in software or ML, and a background ...

Senior Automation Test Engineer — Remote & Agile Impact

A leading technology solutions provider is seeking a Software Engineer in Test in Edinburgh. The successful candidate will contribute to automation testing, define and execute test strategies, and support development teams in achieving quality standards. They should have experience with various testing framework ...

Python Lead Engineer – Global Commodities Platform

A leading financial services company is seeking a Python Lead Software Engineer to join its Commodities Derisking Team. You will be responsible for developing next-generation applications for trading desks globally, leveraging your expertise in Python and experience with agile methodologies. Ideal candidates wil ...

Security Engineering Lead: Cloud, IaC & CI/CD

smart.co is seeking a Principal Security Engineer to lead the integration of security practices into the CI/CD pipeline. Key responsibilities include designing a secure software development toolchain, mentoring engineering teams on security best practices, and managing cloud security postures. The ideal candidat ...

Principal Geotechnical Engineer Transport Infra Lead (Hybrid)

A leading environmental consultancy in Manchester is seeking an experienced Associate or Principal Geotechnical Engineer. The role involves leading geotechnical design teams, managing large infrastructure projects in the UK highways sector, and preparing comprehensive design reports. Ideal candidates will have a ...

Senior Structural Engineer — Creative Low Carbon Design

Cundall is seeking a Structural Engineer to join their team in Newcastle upon Tyne. The successful candidate will work on prestigious projects across the UK and internationally, taking leadership in delivering structural calculations and specifications. Applicants should have an MEng degree and relevant consulta ...

Founding Security Engineer: Scale Core Platform & Equity

A Series A cyber security startup in Greater London is seeking a Founding / Early Engineer to help scale and influence their core product. The ideal candidate will have over 5 years of commercial software engineering experience, a strong understanding of system design, and an ability to adapt across different pr ...

Senior Water Planning Engineer – Resilience Delivery

Arcadis is seeking a Senior Planning Engineer in Exeter to lead their planning capability for major delivery across the environment sector. This role will focus on developing governance and systems while delivering expert advice on resource requirements and performance reporting. Candidates should have relevant ...

Industrial PCB Design & Layout Engineer Onsite

OnTarget Communications is seeking a PCB Design & Layout Engineer based in Chesterfield. This office-based role requires proficiency in electronic circuit design and PCB layout, along with tools like Altium and KiCad. Candidates should have strong debugging skills and a solid understanding of design principle ...

Senior Cloud Platform Engineer Scalable ML Infrastructure

CHARM Therapeutics is seeking a software engineer to develop scalable cloud infrastructure to support ML research. You will design, create, and maintain the infrastructure allowing for large-scale training and inference, crucial for developing therapeutic solutions. Requirements include expertise in cl ...

Staff Engineer, DevTest Tools — Lead Scalable CI/CD

ASSA ABLOY Global Solutions is seeking a Staff Engineer - DevTest Tools in Cardiff. The role involves driving the formation and maintenance of a CI/CD pipeline, bridging DevOps and QA Validation functions. Candidates should have a degree in Engineering and 7+ years of experience in device and software testing. T ...

Senior Platform Engineer: Elevate Dev Experience & Tooling

AJ Bell is seeking a Senior Platform Engineer to enhance internal platforms and shared engineering tools. This role will involve improving developer workflows and supporting teams in delivering high-quality software efficiently. The ideal candidate will have hands-on experience with TypeScript or Go an ...

Senior UI Infrastructure Engineer — Hybrid, Build Tools

Roku, Inc. in Cambridge, England, seeks a Senior Software Engineer for UI Infrastructure development. Ideal candidates will have extensive experience in C++ and Python, contributing to the robustness of embedded frameworks that impact millions of users globally. This position is integral to developing ...

Lighting Product Design Engineer: From Concept to Production

Premier Group is seeking a Product Design Engineer to join their team in North London on a permanent basis. The ideal candidate will have over 4 years of industry experience and be proficient in 3D CAD software like Inventor and AutoCAD. This role will involve designing products from concept to product ...

Defence Systems Modelling Engineer Multi System Analysis

ECM Selection Ltd. is looking for a Systems Modelling Engineer based in Cambridge, UK. This full-time role offers a salary of up to £80,000 depending on experience. You will be part of a fast-growing company in the defence and security sectors, working on challenging projects that involve analysing complex sy ...

SRE Engineer Cloud Reliability & Automation

A leading graph intelligence platform in London is looking for a Software Engineer in Site Reliability Engineering. The role focuses on automating processes for reliability across a vast cloud infrastructure. Candidates should have strong backend experience, particularly in Go, and demonstrate a solid understand ...

Lead Platform Engineer: Data Science & ML Cloud

Kingfisher is seeking a Lead Platform Engineer to spearhead the development of software platforms for its Group Data Science team. This role emphasizes building scalable systems and mentoring engineers while collaborating with Product, Technology, and Data teams. The ideal candidate will possess deep t ...

Backend Engineer AI Driven SaaS Security Platform

A cybersecurity company in Cheltenham is looking for a Backend Engineer to contribute to the development of backend systems for their core product. This role involves building APIs and backend services, with a focus on scalability and performance. Ideal candidates will have 2–4 years of experience in software en ...

UK Based Structural Design Engineer – Flexible & Impactful

A respected engineering consultancy in Trowbridge is seeking a Structural Engineer with around three years of UK experience. You will join a collaborative team involved in diverse projects, from initial concept to completion. The role requires knowledge of structural design codes, proficiency in engineering soft ...

Senior Backend Engineer — AI Infrastructure & Scale

A technology company in Greater London is looking for a Backend Engineer to contribute to building resilient systems for AI agents. The role involves owning systems from architectural decisions to production, focused on reliability and scaling. Candidates should have substantial experience in production software ...

Backend Ruby on Rails Engineer — Payments Platform

Cacheflow is hiring a Software Engineer to enhance payment integrations on the BigCommerce platform. As part of the Commerce Payment integrations team, you will design and maintain robust features that ensure high availability and performance for payment services. The ideal candidate has over three yea ...

Lead Python Engineer: Architecture & API Design

Partnerize is looking for a Lead Python Engineer situated in Edinburgh, Scotland. The ideal candidate will produce clean and maintainable designs, lead software development teams, and have extensive experience with Python and REST APIs. The role includes benefits such as 25 days holiday, enhanced parental leave ...

Senior Platform Engineer: Elevating Developer Experience

AJ Bell Management Limited in Manchester is seeking a Senior Platform Engineer to enhance internal platforms and engineering tools, focusing on Developer Experience to support software delivery. The ideal candidate will contribute to designing and improving platform solutions while mentoring other engi ...

Senior End User IT Deployment Engineer (On site)

A technology company in Thame is seeking a Deployment Engineer responsible for delivering hardware kits and configuring end-user devices. This role encompasses troubleshooting hardware and software issues, assisting with application deployment, and ensuring a seamless user experience. Candidates should have a de ...

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