761,438+ Lead Software Engineer Full Stack Java React Jobs in UK — Top Companies Hiring July 2026

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Graduate Software Developer

Kick-Start Your Software Development Career with a Global Technology Business Are you a recent graduate looking to begin your career in software development with a company that delivers real-world, enterprise-level technology solutions? At Aperta, you’ll work on software used by banks, ce ...

Graduate Software Developer

Infodata are an established UK based developer of application software, building innovative software solutions for hotels, UK private members clubs, restaurants and other areas in the hospitality sector throughout the UK. We are looking for two new (or very recent) graduates in computer sci ...

OS Software Developer

Software Engineer - Open Source SpecialistLocation: Gloucestershire Contract Type: ContractAbout the RoleGuidant Global is partnering with our client to recruit an experienced Software Engineer with strong open‑source expertise. You'll join a small, highly skilled technical team deliv ...

Software Sales Consultant

Software Sales Executive | Dublin | Competitive base salary + Uncapped Commission + Guaranteed BonusAbout UsWe are excited to be partnering with a Leading HR Software Platform who is on the lookout for ambitious Sales Executives to join their thriving and well-established team based in Dublin. <b ...

Senior Software Engineer: Real Time Apps & Cloud (C# / AWS)

OxTS RD is looking for a Senior Software Engineer to work on web client/server applications in an engineering manufacturing environment. The role involves responsibility for designing, developing, and maintaining software for our products. The ideal candidate will have strong programming skills in C#, ...

Senior robotics software engineer UK Oxfordshire ONLY no VISA

Overview Autodiscovery is one of the fastest-growing robotics-first companies in the UK, focused on embodied intelligence and field robotics system integration. The company is developing the next generation of AGI for robots operating in real-world environments. As the UK supplier for AgileX and ...

HPC Software Engineer Intern (3 months) – Starting Summer 2025

Overview HPC Software Engineer Intern (3 months) – Starting Summer 2026 Abingdon – United Kingdom Job Title: HPC Software Engineer Intern (3 months) – Starting Summer 2026 Project Title: Upscaling of embedded meshes to boost simulator accurary and perfo ...

Senior Software Engineer – Linux/Python for AI‑Driven Systems

Avanti Recruitment is looking for a Senior Software Engineer to join their innovative team in Malvern, UK. This hybrid role focuses on developing technology that makes a real-world impact, blending software, hardware, and AI. In this position, you will take ownership of software development across vari ...

Senior AI Driven Software Engineer | End to End Ownership

Foundation Health is revolutionizing healthcare through its AI-powered digital pharmacy platform. We're seeking senior engineers eager to own and ship innovative features that directly impact patient care. Based in Manchester City Centre, the role involves collaborating on technical direction and lever ...

Senior AI Software Engineer: Coding Agent for Game Dev

A leading tech company in Greater London is seeking a Sr. AI Software Engineer to architect an innovative AI Coding Agent. This role involves leading the development of a tool that accelerates game studio workflows by providing intelligent assistance in coding tasks. The ideal candidate will have over 8 years of ...

Actemium Automation Teesside (Worksop) Software Controls Systems Engineer (DCS)

Actemium Automation Teesside (Worksop), part of the VINCI Energies group, provides cutting-edge automation and controls solutions for industrial clients across the UK. We pride ourselves on technical excellence, safety‑first delivery and a collaborative culture that supports professional development. This ...

Senior Software Engineer Secure Cloud & On site (SC/DV)

Gemba Advantage, based in Cheltenham, is seeking Senior and Principal Engineers to design and build secure, scalable software. This hybrid role requires candidates to hold active SC or DV clearance and a strong technical background in languages like Java, TypeScript, or Python. As part of an agile team ...

Senior Embedded Software Engineer Linux/C++ for Robotics & Sensors

Certain Advantage is recruiting for a Senior Embedded Software Engineer to join our client focused on underwater technology. You will work with Linux-based embedded devices, leveraging your expertise in C/C++. Key responsibilities include developing and debugging complex systems, alongside mentoring junior st ...

Senior Embedded Software Engineer Linux/C++ for Robotics & Sensors

Certain Advantage is seeking a Senior Embedded Software Engineer in Swansea, UK, to work with cutting-edge underwater technology. This role requires expertise in C/C++ for Linux-based embedded devices, as well as experience in robotics and automotive sectors. The ideal candidate will possess strong ski ...

Senior Software Engineer, Windows/Desktop Applications Cardiff, United Kingdom

What You'll Do Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI (or related UI frameworks), C#, XAML, and — when needed — C++. Define and enforce best‑practices for Windows desktop development across the codebase: c ...

Senior AI Software Engineer for Net Zero Grids (Hybrid)

Aurora Energy Research Limited seeks a Senior Software Engineer to join their AI team in Oxford, UK. You will manage a team, build systems where LLMs autonomously navigate data, and impact energy grid decarbonisation decisions. The role requires over 10 years of backend systems experience and excellence in Py ...

Senior Software Engineer, Flights — Own End to End Impact

TravelPerk is looking for a Senior Software Engineer in Birmingham to lead feature lifecycles from design to deployment. You will work in cross-functional teams to ensure reliability and a seamless customer experience, while leveraging AI throughout the development workflow. Ideal candidates will posse ...

Senior Software Engineer (Node.js, TypeScript) London, England, United Kingdom

Senior Software Engineer (Node.js, TypeScript) London, England, United Kingdom Role Summary Build software that matters, take real technical ownership, and use modern AI tooling to do your best work. This is a hands‑on senior engineering role for someone who enjoys solving ...

PLC Software Engineer Build From Ground Up (Rockwell/AB)

Samuel Frank in Isley Walton seeks a PLC Software Engineer to configure and develop PLC/SCADA software from scratch. Candidates should have extensive PLC programming experience, particularly with Rockwell / Allen Bradley PLCs. The role involves project lifecycle delivery, documentation, and onsite commissioni ...

Senior Software Engineer — AI‑Driven Web Platform (Hybrid, London)

FutureLearn is looking for a Senior Software Engineer to join its team in London. The role involves designing and developing high-quality web applications, collaborating with cross-functional teams, and enhancing engineering workflows through AI tooling. The ideal candidate will have solid experience w ...

Sr. Software Engineer Data Control Frameworks New Edinburgh, UK

Sr. Software Engineer - Data Control Frameworks Edinburgh, UK Who We Are Addepar is a global data and AI platform empowering investment professionals to turn complex financial information into actionable intelligence. Addepar unifies portfolio, market and client data in a total ...

Senior Software Engineer, Windows/Desktop Applications Edinburgh, United Kingdom

Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read mor ...

Senior Software Engineer, Windows/Desktop Applications Nottingham, United Kingdom

Senior Software Engineer, Windows/Desktop Applications - Nottingham, United Kingdom Location: Nottingham, United Kingdom What You’ll Do Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI (or related UI framewo ...

Senior Software Engineer, Windows/Desktop Applications Oxford, United Kingdom

Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify’s text‑to‑speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read mor ...

Senior Software Engineer Innovation & AI in United Kingdom, Glasgow

Senior Software Engineer - Innovation & AI ScottishPower HQ, Glasgow (hybrid) Salary starting from £63,200 + up to 15% bonus, single cover private medical & other excellent benefits Full-time, Permanent role (flexible working pattern) Closing dat ...

Senior Software Engineer, Windows/Desktop Applications Cambridge, United Kingdom

Senior Software Engineer, Windows/Desktop Applications - Cambridge, United Kingdom Cambridge, United Kingdom Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify’s text-to-speech products to tu ...

Actemium Automation Teesside (Worksop) Software Controls Systems Engineer (DCS)

Actemium Automation Teesside (Worksop), part of the VINCI Energies group, provides cutting-edge automation and controls solutions for industrial clients across the UK. We pride ourselves on technical excellence, safety-first delivery and a collaborative culture that supports professional ...

Software Engineer III iOS JPM Personal Investing Mid Level

Behind every investment is a person with ambitions, motivations and values. While we know that every client is unique, they come to J.P. Morgan Personal Investing for the same reason: our straightforward and transparent approach to investing, and the trust that 150 years of J.P. Morgan heritage brings. ...

Hybrid C# .NET Software Engineer for Lab Automation & IoT

A global engineering company based in the UK is looking for an experienced software developer to join their Synthesis, Digitalization and Automation division. This hands-on role includes designing high-quality software and developing solutions for laboratory automation. Candidates should have over 5 years of exp ...

Senior Embedded Software Engineer Linux/C++ for Robotics & Sensors

Certain Advantage is recruiting for a Senior Embedded Software Engineer in Gloucester. This role requires expertise in C/C++ development for Linux-based embedded devices, particularly in robotics and automotive sectors. The ideal candidate will have a chance to work on cutting-edge products while colla ...

Senior Software Engineer, Windows/Desktop Applications Cardiff, United Kingdom

Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify’s text‑to‑speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read mor ...

Senior Embedded Software Engineer Linux/C++ for Robotics & Sensors

Certain Advantage is recruiting for a Senior Embedded Software Engineer to work with an underwater technology client in Newport, UK. This position requires expert C/C++ development skills for Linux-based embedded devices, along with experience in robotics, automotive, and sensor technologies. The succe ...

Senior Software Engineer, Windows/Desktop Applications London, United Kingdom

Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read mor ...

R&D Software Engineer (Python & Rust) for AI Security

Client Server is seeking a Software Engineer to join its R&D team in Cambridge. In this role, you will engage in the development of a new Greenfield product aimed at mitigating AI-based security threats. You will primarily work with backend Python and have exposure to Rust and emerging technologies, fostering ...

Research Software Engineer — AI Ready Data for ML Training

ECMWF in Reading is seeking a Research Software Engineer (A2) to develop data‑infrastructure services supporting Machine Learning within the Destination Earth initiative. You will operationalise prototypes into robust services, working collaboratively with teams for effective data access in ML training. < ...

Software Engineer SC/DV Cleared, On site 4 days

Gemba Advantage, located in Cheltenham, is seeking junior and mid-level engineers to contribute to meaningful software projects. You'll join an agile team focused on designing secure, user-centered digital products for public sector organizations across the UK. The ideal candidate holds a solid foundat ...

Flight Software Engineer for Space Missions (Rust/C/C++)

A leading space technology company is looking for a software developer to contribute to mission-critical systems for their satellite fleet. The role involves designing and testing flight and ground software, implementing embedded code, and enhancing software tools in a collaborative environment. Ideal candidates ...

Senior Software Engineer (DV Cleared) – Python/C++, Portsmouth Onsite

iO Associates is looking for an experienced Senior Software Engineer to work in Portsmouth, UK. The role involves supporting the maintenance, enhancement, and modernisation of complex software systems within a secure environment. Candidates must have active DV clearance, strong software engineering skills in ...

Research Software Engineer — AI Ready Weather Data for ML

United States Digital Space LLC is seeking a Research Software Engineer to develop data infrastructure services supporting Machine Learning within the European Union’s Destination Earth initiative. This role aims to innovate solutions for data accessibility and manage large datasets, collaborating across team ...

AI/ML Senior Software Engineer, Data Optimization and Platform

Minimum qualifications: Bachelor’s degree or equivalent practical experience. 5 years of experience with data structures and algorithms in Python. 3 years of experience with one or more of the following: Speech/audio (e.g., technology duplicating and responding t ...

Senior Embedded Software Engineer Linux/C++ for Robotics & Sensors

Certain Advantage is recruiting for a Senior Embedded Software Engineer in Exeter to join an underwater technology client. The ideal candidate will possess expert C/C++ development skills for Linux-based embedded devices and have experience in robotics and automotive sectors. This position offers a fan ...

Embedded Software Engineer (DO 178) for eVTOL Flight Systems

Expleo is seeking a Software Engineer in Bristol to develop high-integrity embedded software for aerospace systems. The position focuses on DO-178-compliant processes to ensure quality in safety-critical environments. Ideal candidates will have a Bachelor's or Master's in Engineering, proficient in C p ...

C++ Software Engineer I Mapping SDK & Real Time Rendering

PowerToFly is seeking a software developer experienced in C++ to join their Cardiff team. The role involves building software components for cutting-edge mapping technology and requires strong skills in modern C++ and collaboration with product engineers. The suitable candidate will possess a Bachelor’ ...

Software Engineer Mid Level C++ (Fix term 1 year)

Software Engineer Mid Level C++ (Fix term 1 year) Morningstar London, United Kingdom Permanent Posting date: Job ID: Employment Type: Full time Compensation: Competitive About Morningstar Morningstar is a leading global provide ...

Cloud Native AIML Software Engineer for AI in Science

GlaxoSmithKline is seeking a Software Engineer to join their AI for Science team, responsible for building cloud-native solutions that enhance AI systems. Ideal candidates will possess expertise in Python and cloud platforms like GCP. The role involves designing infrastructure and ensuring system relia ...

Microsoft Dynamics 365 F&O Software Engineer St Lukes

Salary: £80,000 - 80,000 per year Requirements We require strong experience delivering full lifecycle Microsoft Dynamics 365 F&O and AX implementations across multiple industry sectors. We require advanced development experience using X within Dynamics 365 Finance ...

AI/ML Senior Software Engineer, Data Optimization and Platform

Google Cloud's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale ...

Software Engineer III: Semantic Search APIs in Python & C#

LexisNexis Legal & Professional is seeking a Software Engineer III specializing in Python and C#. The role involves independently working on software development tasks, including specifications for a semantic search API and maintaining internal tools. The ideal candidate will demonstrate proficiency in ...

On Site Software QA Engineer – Medical Devices (IEC 62304)

OrganOx in Oxford is seeking a Software Quality Engineer responsible for supporting software quality assurance and ensuring compliance with regulatory standards. The role involves documentation, testing, and collaboration with various teams in a medical device environment. The ideal candidate will have ...

Embedded Software Engineer (C++17) Safety Critical Gas Sensing

Are you searching for a new opportunity that will allow you to play your part in creating a cleaner and healthier world?Here at Servomex, our work spans a broad spectrum of industries, from enabling low-emission power generation, to supporting high-purity medical oxygen, enhancing facility safety, and ...

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    Lead Software Engineer Full Stack Java React Jobs in United Kingdom Job Search Guide, Trends and Insights