253,111+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Hybrid Mechanical Design Engineer Production Ready

ASSA ABLOY Global Solutions in Olney is searching for a Mechanical Design Engineer to drive the design and development of innovative products. This role offers a combination of on-site and remote work, allowing for flexibility while fulfilling hands-on design requirements. The ideal candidate will have ...

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 ...

Production Linux & Datacenter Engineer Slough

A financial software firm is seeking an Infrastructure Engineer to manage and improve their Linux systems in production. The role involves hands-on datacenter operations, including managing LXD/LXC container platforms and troubleshooting infrastructure issues. Candidates should have 2-3 years of experience with ...

Enterprise AI Engineer Deploy Production AI for Clients

IFS is seeking a Forward Deployed AI Engineer in Greater London to work directly with enterprise customers. You will design and deploy AI solutions, leading the implementation of intelligent agents across complex workflows. The ideal candidate has 2-5 years of experience in software or solutions engineering, pro ...

Cloud Security Engineer for Scalable Embedded Platform

A leading technology startup in Greater London is seeking a Software Engineer to develop security-focused cloud services and infrastructure. The ideal candidate will have 3+ years of specific industry experience and a strong grasp of distributed systems and cloud computing. Together with an innovative team, you ...

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 ...

Hybrid Full Stack Engineer | Build Scalable Web Apps

Brilliantbrandings is seeking a Full-Stack Engineer to develop high-quality web applications, ensuring UI consistency and quality throughout. The role involves creating software building blocks for both client and internal products, exercising standardization in development processes. The ideal candida ...

Backend Engineer Pathogen Platform (Bioinformatics)

A leading technology institute in Oxford is seeking a Backend Software Engineer to develop and maintain secure, scalable backend services and APIs. In this role, you will work within a cross-functional team to support cutting-edge bioinformatics solutions. Ideal candidates will have strong knowledge of backend p ...

UK‑Based Client‑Facing AI Deployment Engineer (Cloud)

Oliver Bernard is seeking a Forward Deployed Engineer in Greater London to collaborate closely with client engineering teams. This role involves leveraging tools for AI-native development and shipping impactful changes. With a salary of up to £145k plus a potential bonus, the role requires 5+ years of ...

Principal Engineer, AI for Legal Workflows — Remote Equity

A high-velocity Legal AI startup is seeking a Principal Engineer to lead the technical development of a platform that automates complex legal workflows for global VC funds. You will architect and ship features using TypeScript and Node.js, and manage enterprise-grade security for sensitive data. The role offers ...

Site Reliability Engineer for Trading Platforms

Barclays is seeking a Site Reliability Engineer based in London to oversee the reliability and performance of systematic trading algorithms within the Equity Derivatives business. You will implement software engineering techniques and automation in incident response to enhance system availability and scalability ...

Product Security Engineer: Build Secure, Scalable Features

Hard Yaka is seeking a Security Engineer, Product Security to join our team in Greater London. In this role, you'll help build secure products by collaborating closely with engineering teams and product managers to identify risks early and improve security quality across the software development lifecycle. </ ...

OEM Partner Integration Engineer — Portal Platform

Wayve is seeking a partner-facing engineer to work directly with automaker partners. The ideal candidate will build software solutions, resolve integration issues, and enhance system observability within a hybrid model. Responsibilities include developing features, ensuring customer satisfaction, and managing ...

Senior Overhead Line Design Lead – Hybrid/Remote UK

A specialized engineering recruitment firm seeks a Senior Overhead Line Design Engineer in the UK. This role involves leading technical projects related to overhead line design (132kV–400kV) and mentoring junior engineers. The position offers the flexibility to work remotely or in a hybrid model, engaging in a m ...

Civil Engineer — Housing Development Specialist

A well-known housing developer in Reading is seeking a skilled Civil Engineer to join their team on a full-time basis. This role involves contributing to the design and delivery of various housing developments, with opportunities for internal and external training. Candidates should possess a Civil Engineering d ...

Senior Cloud Platform Engineer for Global Scale

A technology company specializing in e-commerce solutions is looking for a Senior Software Engineer for its Cloud Platform Engineering group in Belfast. This pivotal role involves designing, implementing, and managing enterprise cloud infrastructure while providing technical leadership to a skilled team. Ideal c ...

Senior AI Engineer: Autonomous Security Platform

A cutting-edge cloud security company in Belfast is seeking a visionary AI Engineer to help build their internal AI platform and architect intelligent systems. This role involves developing autonomous workflows and collaborating with teams to enhance security posture through machine learning. The ideal candidate ...

Senior GenAI Engineer – Hybrid Data & AI Products

Tesco - Corporate is looking for a Software Development Engineer III in Welwyn Garden City to lead the development of Data & AI products. The role requires strong backend engineering skills, especially in Python and LLM-powered applications. You will engage in the full product lifecycle, create production-grade ...

Senior Full Stack .NET Engineer AI Driven Cloud Security

Eligo Recruitment Ltd is seeking an experienced Senior Full Stack software engineer to work on a cloud-based security application. The successful candidate will utilize .Net C# and Node JS, while integrating AI functionalities. This position is based in Crawley, requiring a willingness to engage in MOD projec ...

Traffic Engineer TROs & Moving Traffic (AutoCAD)

A leading engineering consultancy in the Greater Manchester area is looking for a skilled Traffic Engineer to support their busy Traffic and transportation team. The ideal candidate will have experience developing new and amending existing Traffic Regulation Orders and can proficiently use AutoCAD and other rele ...

Free 16 Week Python Engineer Accelerator

CodeFirstGirls is offering a Mid-Level Python Engineer position in London through the Mid-Level Accelerator programme. This program is ideal for candidates with 1.5+ years of experience in Software or Data Engineering. Participants will benefit from a 16-week free training course that prepares them for ...

Lead C++ Engineer Low Latency Trading Systems

TwinThread, based in London, is seeking a Lead eSoftware Engineer specializing in C++. This role involves developing innovative software solutions in a dynamic electronic trading technology environment. The successful candidate will work collaboratively across teams, ensuring high-quality production co ...

Senior Go & Python Engineer Secure, Multi Tenant Platform

PhysicsX, based in Greater London, is seeking a Senior Software Engineer to join our Core Services team. The successful candidate will design and implement robust authentication and authorization systems that enhance our AI-driven simulation platform. This role involves architecting scalable security m ...

AI First .NET Architect for Scalable Systems C#/PostgreSQL

A leading tech company in the United Kingdom seeks a Senior Software Engineer to architect and build a production-grade, AI-first .NET platform. This role involves transforming AI workflows into resilient production code, designing the infrastructure for high-concurrency workloads, and adopting AI-assisted tools ...

Embedded Health Data Engineer for Strategic Integrations

A leading health data tech firm is seeking a skilled engineer to act as a technical bridge between their platform and top clients. You will design and implement integration architectures for complex health data use cases, serve as a dedicated expert for multiple strategic accounts, and contribute to product impr ...

Senior Network Security Architect: Cloud & Zero Trust

Prism Digital is seeking a Senior Network Security Engineer in Windsor, England. You will secure large-scale software platforms used across healthcare, financial services, and government environments. The role requires experience in designing network security for hybrid and multi-cloud environments, fo ...

AI Cloud Platform Engineer — Flexible & Impactful

Morgan Stanley is seeking an AI Cloud Solution Engineer in Glasgow to join their Technology Architecture & Modernization team. The role focuses on building an AI Development Platform and requires expertise in cloud architecture and software development, particularly in Python. The ideal candidate will ...

Staff SecOps Engineer — Cloud Security Lead (Remote UK)

Lunar Energy is looking for a Staff SecOps Engineer to enhance platform security within a forward-thinking team. You will be pivotal in incident response, platform architecture, and integrating security best practices across software development. This full-time role allows you to work flexibly, either ...

Backend Engineer Python/Flask, Hybrid London

Skinandme is seeking a Backend Engineer in London to work on our core commerce and clinical systems. You will be responsible for building APIs, data models, and services that power consultations and prescriptions. The role requires solid experience in Python and Flask, ensuring correctness due to the clinical ...

Senior Systems Engineer, Secure Product Development

Holt Engineering Ltd is seeking a Systems Engineer in Farnborough to lead multidisciplinary product development projects. The ideal candidate will have at least 5 years of relevant experience and a degree in Engineering or related fields. You will be responsible for defining system architectures, manag ...

Staff Automation Engineer: Secure CI/CD & DevOps

Palo Alto Networks in Greater London is seeking a Staff Automation Engineer to enhance our software release lifecycle. You will design and maintain CI/CD pipelines, ensuring high security and reliability while optimizing for speed. This role requires extensive experience with DevOps tools like Terrafor ...

Subsea Route Engineer – 12 Month Contract

OceanIQ in Chelmsford is seeking a Route Engineer for a 12-month fixed term contract, with a start date ideally on 1st July 2026. This role involves working with marine survey data and GIS tools to design submarine cable routes, considering technical and environmental risks. The successful candidate wi ...

Principal Mechanical Engineer, Hydropower & Dams

Stantec Consulting International Ltd. is seeking a Principal Mechanical Engineer to support the design and development of hydropower systems in Edinburgh. In this role, you will work within a dynamic team to produce mechanical designs and collaborate on various projects across the energy sector. Ideal candidates ...

Senior Quality Engineer Hybrid (London) with Katalon

CPS Group (UK) Limited is seeking an experienced Quality Engineer to join their Agile product team in London. This role requires hands-on experience with Katalon and is pivotal in delivering high-quality software solutions. Key responsibilities include driving testing strategies, collaborating with tea ...

Senior Enterprise AI Solutions Engineer

Tomoro is seeking a Senior AI Solution Engineer to lead the development and deployment of innovative AI applications. You will work closely with clients and teams to deliver cutting-edge solutions aligned with business goals. The role requires at least 5 years of software development experience, partic ...

Controls Systems Integration Engineer Lead PLC/SCADA

Adsyst (Automation) Limited is looking for a Controls Systems Integration Engineer in Yateley, UK. The role entails full life-cycle project delivery, ensuring technical compliance and quality. Candidates should have 2+ years of control system experience, a relevant software engineering degree, and familiarity wi ...

System Engineer – Unreal Engine 5, Core Tech (Multiplatform)

Rocket-Science-Group is looking for a System Engineer to join Splash Damage at their Bromley studio. You will be part of the Core Tech team, focusing on designing and implementing systems that support their titles. The role emphasizes collaboration, technical design, and software development expertise. <p ...

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 ...

BMS Commissioning Engineer

Working on behalf of our client based in the West Midlands. We are currently recruiting for a Commissioning Engineer. Key Duties: Work on-site for commissioning projects (majority based in the West Midlands). Occasional projects outside of this area (travel e ...

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 ...

Technical Support Engineer Azure, AD, IIS, SQL

3rd Line Technical Support Engineer | Azure, AD, IIS, SQL - Cyber Security Take your support career into Cyber Security the most secure sector to work in. Join a growing cyber security software company supporting global enterprises and government organisations with industry-leading ...

Hybrid Embedded MCU Firmware Engineer for Medical Devices

HS Design, Inc. in Bristol is looking for an Embedded Software Engineer to develop firmware for medical devices. In this role, you will collaborate with multidisciplinary teams to create safety-critical applications using C/C++. You will be mentored by Senior Engineers and participate in a supportive culture ...

Senior Product Engineer — Build AI Driven Social Impact

A leading social impact technology company in Greater London seeks a Senior Software Engineer to join a passionate team dedicated to building impactful solutions. You will have the opportunity to work with cutting-edge technologies, collaborate with cross-functional teams, and influence the future of critical pr ...

NPI & Robotics Manufacturing Engineer (Junior)

Infinitesima in Sandford-on-Thames seeks a Junior Manufacturing Engineer to join our growing team. You will be instrumental in ensuring product quality and supporting key stakeholders. This role involves documenting assembly, creating build notes, and identifying continuous improvement opportunities. T ...

Senior Civil Infrastructure Engineer: Drainage & Flood Risk Lead

A leading development consultancy is seeking a Senior Infrastructure Engineer to join their team in Southend-on-Sea. You will be responsible for producing engineering designs for drainage and infrastructure developments, conducting flood risk assessments, and issuing necessary documentation. The ideal candidate ...

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 Mechanical Design Engineer (MEP) – Lead Projects

IN2 Engineering Design Partnership based in Belfast is seeking a Senior Mechanical Design Engineer to lead mechanical design projects. You'll collaborate closely with clients on various sectors including commercial and healthcare, ensuring high-quality engineering solutions. The role offers flexible hours and ...

Senior Structural Engineer — Lead Projects & Client Liaison

ICE Recruit is looking for a Senior Structural Engineer to join a talented team in Kendal. This role offers the chance to manage projects from concept to construction, overseeing diverse building structures while providing mentorship to junior engineers. The ideal candidate will hold a degree in Civil ...

Senior C# Backend Architect — Greenfield Payments Platform (London, 3 days in office)

A global financial technology firm is seeking a Senior C# Software Engineer to architect a greenfield payments platform in Central London. This role requires expertise in C#, .Net Core, and SQL, focusing on creating robust and high-performance backend systems. Working alongside a specialized squad, you will deli ...

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 ...

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