Software Engineer C Python Java Defence Tech Jobs in UK

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Lead Software Engineer

Principal Software Engineer - TypeScript, JavaScript, Python, C++, Linux, IoT, K8 Southampton (Onsite) £75,000 + generous pension & benefits Are you an experienced Software Engineer who thrives on solving real-world problems with cutting-edge technology? This is an opportu ...

API Developer AI Trainer in Leeds DataAnnotation

Responsibilities You will be responsible for coming up with diverse problems and... Qualifications A bachelor1s degree (completed or in progress) is also required. Proficiency in additional programming languages/frameworks such as TypeScript, C, C#, C++, HTML/CSS, React, Go, Java, ...

Robotics Engineer

Overview We’re hiring a Robotics Engineer to support the development of autonomous and semi-autonomous systems within highly secure programmes. This is an opportunity to work on innovative robotics solutions with real-world impact. Key Responsibilities Design, develop, and ...

Full Stack Engineer (C#/.NET) Build Next Gen Address Tech

A leading address data company based in Wrexham is seeking a Developer to contribute to the development of next-generation address management software. This entry-level full-time position offers a competitive salary of £30,000 plus a performance-based bonus. Candidates should have 2-5 years of experience in C# a ...

Senior Real Time Ad Tech Engineer (Lua/C++) Hybrid/Remote

Zeta Global is looking for a Senior Software Engineer to join their LiveIntent Real-Time Ad Serving team. You will develop and optimize business logic in Lua, driving ad selection, targeting, and performance. This role involves hands-on engineering with a focus on quality and collaborative product development. T ...

Senior Real Time Ad Tech Engineer (Lua/C++) Hybrid/Remote

Zeta Global is looking for a Senior Software Engineer to join their LiveIntent Real-Time Ad Serving team. You will develop and optimize business logic in Lua, driving ad selection, targeting, and performance. This role involves hands-on engineering with a focus on quality and collaborative product development. T ...

Senior Front end Software Engineer ( React, Bazel And Java )

Senior Front-end Software Engineer ( React, Bazel and Java)** YOU MUST LIVE IN THE UK- ALSO SPONSORSHIP IS NOT PROVIDED**The organisation manages the test infrastructure and tooling that underpin its client applications. The mission is to provide a reliable, consistent and efficient testing ecosy ...

EPOS Software Engineer (Java/Spring) – 12 Month FTC, Hybrid

Booker Group plc is seeking a Software Development Engineer for a 12-month FTC, based in Eccles. The role focuses on building and supporting EPOS systems, leveraging technologies like Java and Spring. As part of a hybrid team, the successful candidate will drive key technical initiatives and support sy ...

Software Engineer, Java (Mid/Senior) in Dundee Rockstar Games

Software Engineer, Java (Mid/Senior) Dundee, United Kingdom Posted 9 months ago Qualifications Degree in computer science or a similar discipline. Minimum 3 years of professional Java EE development experience. Skills Profi ...

Senior Java Software Engineer II — AI Driven Cloud Solutions

A leading information and analytics company in the UK is seeking a Senior Java Software Engineer II to enhance its cloud-hosted systems supporting scientific research. You will work in a dynamic Agile team, focusing on design, development, and deployment of innovative solutions using Java, Spring, and other mode ...

Senior Java Software Engineer Quote API (London or WGC)

About the role Join the team behind Price Service—a mission‑critical HTTP API powering pricing and promotions across all of Tesco’s channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week, with global reach on the horizon. W ...

Java Software Engineer — Lead in Agile, Spring Boot & Testing

A leading consulting firm is seeking a Software Engineer (Java) to join their team in Birmingham. The role involves delivering high-quality code, participating in agile practices, and contributing to digital transformation projects. Strong hands-on experience with Java and frameworks like Spring Boot is essentia ...

Java Software Engineer — Lead in Agile, Spring Boot & Testing

A multinational consulting firm is seeking a Software Engineer specializing in Java for their Manchester office. The ideal candidate will have extensive experience with Java and Spring Boot and a solid understanding of Test Driven Development. Responsibilities include high-quality implementation and collaboratio ...

Senior Front end Software Engineer ( React, Bazel And Java )

Senior Front-end Software Engineer (React, Bazel and Java) You must live in the UK – also sponsorship is not provided. The organization manages the test infrastructure and tooling that underpin its client applications. The mission is to provide a reliable, consistent and efficient ...

Senior Java Software Engineer Quote API (London or WGC)

Join the team behind Price Service—a mission‑critical HTTP API powering pricing and promotions across all of Tesco’s channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week, with global reach on the horizon. We’re building a r ...

Senior Java Software Engineer Quote API (London or WGC)

Tesco UK • Welwyn Garden City • Hybrid • Full-Time • Permanent • Working hours 36 • Apply by 03-Apr-2026 Join the team behind Price Service-a mission-critical HTTP API powering pricing and promotions across all of Tesco's channels. From tills to websites and everything in between, our work ...

Senior Java Software Engineer Quote API (London or WGC)

About the role Join the team behind Price Service —a mission‑critical HTTP API powering pricing and promotions across all of Tesco’s channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week , with global reach o ...

Senior Java Software Engineer Quote API (London or WGC)

Join the team behind Price Service-a mission-critical HTTP API powering pricing and promotions across all of Tesco's channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week, with global reach on the horizon.We're building a robust, i ...

Software Engineer Java or Go Belfast in Belfast Ocho

Overview Software Engineer - Java or Go - Belfast Location: Belfast, United Kingdom Posted 24 days ago Salary: £80,000 per year Requirements We are looking for a backend engineer with at least 1 year of experience in Java or Go. You should have ex ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing technical leaders ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing t ...

Lead Software Engineer – Hybrid/ Flexible (Java/React, Cloud & DevOps)

A leading defense and technology company in Greater London is seeking a Lead Software Engineer to oversee projects and mentoring. You will have a significant role in designing and maintaining systems that have real-world impacts. Preferred candidates will have strong experience in Java for backend development an ...

AI Software Engineer (Java/Scala) — Build Real World AI

A leading software company in Greater London seeks an AI Engineer to innovate at the intersection of engineering and AI. The role entails developing scalable systems, deploying using modern cloud-native tools, and collaborating across teams to enhance their platform's capabilities. Candidates should possess a de ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing technical leaders ...

Java Software Engineer, Using AI Development Tools, Fully Remote

Java Software Engineer - Payment Processing This is a fantastic opportunity to grow and evolve within a Software Engineering function with the opportunity to improve the software development process, methodologies and tools through applied experience, automation and simp ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing t ...

AI Software Engineer (Java/Scala) — Build Real World AI

A leading software company in Greater London seeks an AI Engineer to innovate at the intersection of engineering and AI. The role entails developing scalable systems, deploying using modern cloud-native tools, and collaborating across teams to enhance their platform's capabilities. Candidates should possess a de ...

Lead Software Engineer – Hybrid/ Flexible (Java/React, Cloud & DevOps)

A leading defense and technology company in Greater London is seeking a Lead Software Engineer to oversee projects and mentoring. You will have a significant role in designing and maintaining systems that have real-world impacts. Preferred candidates will have strong experience in Java for backend development an ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role PurposeWe are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads.The Lead Engineer is a key role within a Software or Data Engineering sub-comm ...

Senior Front end Software Engineer ( React, Bazel And Java )

Senior Front-end Software Engineer ( React, Bazel and Java)** YOU MUST LIVE IN THE UK- ALSO SPONSORSHIP IS NOT PROVIDED**The organisation manages the test infrastructure and tooling that underpin its client applications. The mission is to provide a reliable, consistent and e ...

Software QA Engineer in Test Graphics & Video Tech

Datapath is seeking Software Test Engineers and Software Development Engineers in Test to join our dynamic team in East Midlands, UK. You will be responsible for ensuring software quality through manual and automated testing, contributing to agile development processes. The ideal candidates will have a strong ba ...

Trade Tech Software Engineer: Real Time Distributed Systems

G-Research in London is seeking Software Engineers to join their Trade Technology function. The role involves designing and implementing robust trading platforms, ensuring system performance, and contributing to reliability and operational excellence. Ideal candidates will have a strong software engineering back ...

Senior Software Engineer, Margin Tech — Hybrid & High Impact

Citi in Northern Ireland is seeking a Senior Software Engineer who will join a passionate team to build robust software solutions. As a part of a hybrid working environment, you'll work with advanced technologies and have opportunities to grow your skills while contributing to impactful projects. The ideal candi ...

Lead Software Engineer, AI/ML & Cloud Tech Lead

Kainos is seeking a Lead Software Engineer based in Budock Water, England. You will lead teams to develop innovative software solutions that significantly impact users worldwide. This role requires deep expertise in Python or C#/.NET, technical leadership, and experience in building AI products. Emphasizing a pe ...

Sr Lead Software Engineer GPB TECH OPER & FRANCHISE

hackajob is collaborating with J.P. Morgan to connect them with exceptional professionals for this role. Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a S ...

Software Engineer, Front End Leaning (Tech Lead level)

Location London Employment Type Full time Location Type Hybrid Department Engineering Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered i ...

Software Engineer End to End Travel Tech & AI

Traveltechessentialist is seeking a Software Engineer in Edinburgh to lead the development of features that enhance customer experiences in travel booking. This role involves building responsive search tools, automating expenses, and ensuring a seamless connection with various platforms. The ideal candidate has ...

Trade Tech Software Engineer — Real Time Distributed Systems

G-Research in Greater London is seeking a Software Engineer to join their Trade Technology team. You will design and develop robust trading platforms, ensuring they are efficient and reliable. Ideal candidates should have a strong background in software engineering, proficiency in languages like Java or C++, and ...

OOP Software Engineer Computer Vision for Satellite Tech

Ernest-Gordon-Recruitment-Limited is seeking a Software Engineer specializing in Object-Oriented Programming to work on cutting-edge projects in satellite communication. The role offers autonomy on complex projects and flexibility, including remote work on Fridays. The ideal candidate has experience wi ...

Software Engineer End to End Travel Tech & AI

Traveltechessentialist is seeking a Software Engineer in Greater London to develop features that improve customer experience. The role involves working on fast search solutions, automated billing tools, payment systems, and AI-driven features. The ideal candidate should have strong software engineering fundament ...

Remote AI Software Engineer — Build Scalable, Impactful Tech

Bending Spoons in the UK seeks an innovative software engineer to build AI-powered product experiences and integrate AI tools in development workflows. Join a talented, entrepreneurial team where you'll take ownership of projects from idea to production impacting millions. We offer competitive pay, flexible work ...

Senior Lead Software Engineer, Markets Tech — Secure & Scalable

JPMorgan Chase & Co. in Greater London is looking for a Lead Software Engineer to design and deliver secure, scalable technology solutions. You'll work with an agile team, focusing on developing high-quality code and maintaining critical systems. Candidates should have a Bachelor's degree in Computer Science, ex ...

Graduate Software Engineer Mentored in Cutting Edge Tech

Susquehanna International Group, LLP is searching for talented Software Development Graduates to join their London office in September 2026. You will work closely with experienced technologists, participating in the development of innovative software solutions using languages such as C#, C++, and Python. ...

Senior Software Engineer, Risk Tech – Build VaR Platforms

A diversified trading firm is seeking a Senior Software Engineer to enhance their Unified Platform - Risk team. The role involves designing and maintaining API and service platforms, with responsibilities across the development lifecycle. Ideal candidates should be fluent in various programming languages and pos ...

Senior Software Engineer – End to End Energy Tech

A leading energy tech company in Greater London is seeking a Software Engineer to join an elite team focused on building the future of home energy management. You will take full ownership of your code, from design to deployment, working with technologies such as Node.js, TypeScript, and React. The role offers au ...

Staff Software Engineer: Tech Lead for Kotlin & Cloud

A technology-driven insurance firm based in London is seeking a Staff Software Engineer to join their high-performing Engineering team. The ideal candidate will lead the development of scalable software solutions and collaborate with cross-functional teams to deliver impactful results. Strong experience in moder ...

Software Engineer – Build Global Tax Tech with Impact

Caribou is seeking an experienced Software Engineer in the United Kingdom to innovate and enhance its tax platform. In this role, you'll design and maintain customer-facing applications while collaborating with the tax team to drive efficiency and feature development. Candidates should have 2+ years of frontend ...

Lead Software Engineer: High Impact Tech, UK Clearance

A leading defense technology company is seeking a Lead Engineer in Manchester to design, develop, and maintain critical infrastructure solutions. This role requires experience in backend or frontend development, with a strong command of tech such as Java, React, and cloud technologies. The position offers hybrid ...

Graduate Software Engineer Speech Tech & Hands On Growth

A leading technology company in the UK is offering a 12-month Graduate Programme aimed at cultivating new talent in speech technology. Participants will gain hands-on experience across product development, client integration, and software engineering while working alongside experienced mentors. The program foste ...

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    Software Engineer C Python Java Defence Tech Jobs in United Kingdom Job Search Guide, Trends and Insights