Software Engineer C Python Java Defence Tech Jobs in UK

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Defence Embedded Software Consultant (Security Clearance)

An innovative Defence company in Cambridge is on the lookout for Embedded Software Consultants to contribute to groundbreaking technologies aimed at enhancing the UK's defence and safety. This role offers a fantastic opportunity to work alongside a diverse team of professionals, including engineers and physicist ...

Fullstack Software Engineer Core

Dataiku is The Universal AI Platform, giving organizations control over their AI talent, processes, and technologies to unleash the creation of analytics, models, and agents. Providing no-, low-, and full-code capabilities, Dataiku meets teams where they are today, allowing them to begin building with AI usin ...

Senior Java Backend Engineer: Scalable APIs & CI/CD

A leading technology firm in the United Kingdom is seeking a Senior Software Engineer to design and maintain backend services for transaction-driven platforms. The role requires 6-8+ years of experience in software engineering and expertise in languages like Java or C#. Candidates should possess strong problem-s ...

Firmware Engineer

Salary £50,000 to £80,000 plus strong benefits package Based from South West or Hampshire, with flexible working arrangements Work on secure, long-term national security programmes Firmware, FPGA and VHDL experience required Active DV clearance required ...

Firmware Engineer

Salary £50,000 to £80,000 plus strong benefits package Based from South West or Hampshire, with flexible working arrangements Work on secure, long-term national security programmes Firmware, FPGA and VHDL experience required Active DV clearance required ...

C# Developer Front Office Engineering | Hedge Fund London

We’re working with a leading fixed income hedge fund in London that is expanding its front‑office engineering team. The fund has a strong performance track record, a deep commitment to technology, and a culture where engineers work side‑by‑side with quants and traders to build the systems that drive the in ...

Software Engineer

Senior Software Engineer Location: Stevenage | Hybrid, typically 3-5 days onsite per week Salary: £40,000-£60,000 depending on experience Please read the following job description thoroughly to ensure you are the right fit for this role before applying.***Please note for th ...

Senior ML Software Engineer – AI Systems & Compiler Tech

ARM in Manchester is seeking a passionate engineer to work on Machine Learning and AI technologies. The role involves developing new features in ML compilation technology and leading projects while mentoring junior team members. Candidates should have strong programming skills in C, C++, and Python and experienc ...

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 ...

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 ...

Senior Software Engineer (Laravel/TypeScript) – Own the Tech

Futureheads Recruitment | B Corp™ is seeking a Senior Software Engineer in Greater London to join their low-ego engineering team. This role offers up to £100k per annum and focuses on building and improving core platform features using PHP (Laravel) and TypeScript. Candidates should have a strong software engine ...

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 ...

Remote AI Software Engineer — Build Scalable, Impactful Tech

Bending Spoons is looking for talented, driven individuals to join their team in the UK. You will build AI-powered product experiences and lead projects from concept to production. Candidates should have strong reasoning skills, high ambition, and proficiency in English. The position offers significant growth op ...

Lead Software Engineer, AI/ML & Cloud Tech Lead

Kainos is seeking a Lead Software Engineer based in Birmingham. In this role, you will lead teams and drive the development of modern software applications, particularly in AI and ML. You will manage and mentor junior team members, guiding them through technical ownership and architecture planning. Strong experi ...

Principal Software Engineer Tech Leader in Cloud & Scale

Hippo, a digital consultancy, seeks a Principal Software Engineer to lead engineering vision and technical direction. You will mentor senior engineers, influence stakeholders, and ensure best practices in software delivery. With experience in Python, Node, or Java, and a strong background in cloud platforms and ...

Senior Software Engineer – Hybrid Finance Tech (Markets Ops)

Citigroup Inc. is seeking a Senior Software Engineer in Belfast. You will help redefine global finance by building robust software solutions in a dynamic team environment focused on integration and automation. Ideal candidates have strong programming skills primarily in Java, React, and Python, along with experi ...

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 ...

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 ...

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 ...

Lead Software Engineer — AI Driven Assistive Tech (Hybrid)

A leading recruitment agency seeks a Software Team Lead in Bristol to drive agile development and lead a team in enhancing user outcomes through innovative assistive technology. This role involves mentoring engineers, utilizing AI tools for productivity, and implementing robust software architecture. Applicants ...

Senior Lead Software Engineer, Real Estate Tech (Hybrid)

A leading tech firm is seeking a hands-on leader for a role in real estate technology, based in Sheffield, UK. The successful candidate will mentor engineers and drive technical delivery through active code contribution. Excellent communication and coding skills, along with a commitment to agile practices, are e ...

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 ...

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 ...

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. ...

Hybrid Tech Lead — Hands on Software Engineer (UK)

Gelt, located in Long Eaton, is seeking a skilled Tech Lead to oversee the design, development, and maintenance of applications. This hybrid role requires candidates to work 3 days a week in the Nottingham office. Ideal candidates will have over 7 years of relevant experience, proven leadership skills, and a str ...

Lead Software Engineer, Margin Tech Global FinTech Hybrid

Citibank (Switzerland) AG in Greater London seeks a Lead Software Engineer to shape the future of finance technology. The ideal candidate will work within a dynamic team, develop robust software solutions, and contribute to the automation of processes. You should possess hands-on experience in Java, Python, and ...

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 ...

Software Engineer: Build Scalable Travel Tech with Equity

A technology company in Greater London is looking for a Software Engineer to design, architect, and implement their innovative travel management platform. The ideal candidate will have extensive programming experience in any web programming language, with a focus on backend development, and will thrive in an Agi ...

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 ...

Staff Software Engineer — Lead Cross‑Team Tech & Impact

A leading online food company in Greater London is seeking a Staff Software Engineer to contribute to group-level goals and metrics. The role involves leading cross-team projects, influencing strategic direction, and mentoring future leaders. Ideal candidates will demonstrate expertise in software development an ...

Lead Software Engineer – Hybrid, Cross Functional Tech Lead

A technology infrastructure company is seeking a Lead Software Engineer to lead a cross-functional team in developing innovative software solutions. You will collaborate with the Head of Digital Products to drive the product strategy while ensuring high-quality code development. This role requires a strong backg ...

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 ...

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 ...

Software Engineer I Scalable Payments Tech (AI Driven)

A global payments company is seeking Software Engineers to develop advanced payment technologies and provide exceptional customer experiences. The position requires a Bachelor's or Master's in Computer Science/Engineering and proficiency in languages such as C#, Java, or Go. Candidates should have great communic ...

Software Engineer, Front End Leaning (Tech Lead level)

Responsibilities Work end‑to‑end on our client application written in React and our monolithic backend written in Python, managing the safe release of features to the customer base. Own projects that span months, breaking them into iteratively deliverable steps. Work dir ...

Graduate Software Engineer Speech Tech & Hands On Growth

A leading technology company in Cambridge is offering a 12-month Graduate Programme designed for individuals eager to kickstart their careers. Participants will work closely with senior engineers across product management, client integration, and software engineering. The program provides valuable hands-on exper ...

Staff Software Engineer: Tech Lead & Architect (Hybrid UK)

A leading consulting firm is seeking a Staff Engineer to provide technical leadership and mentor team members while working on complex software projects. This hybrid role based in Paddington, UK, requires strong Java skills and experience in the retail domain. You'll shape technology strategies, tackle challengi ...

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 ...

Senior Software Engineer – Hybrid Finance Tech (Markets Ops)

Citigroup Inc. is seeking a Senior Software Engineer in Belfast. You will help redefine global finance by building robust software solutions in a dynamic team environment focused on integration and automation. Ideal candidates have strong programming skills primarily in Java, React, and Python, along with experi ...

Senior ML Software Engineer – AI Systems & Compiler Tech

ARM in Manchester is seeking a passionate engineer to work on Machine Learning and AI technologies. The role involves developing new features in ML compilation technology and leading projects while mentoring junior team members. Candidates should have strong programming skills in C, C++, and Python and experienc ...

Remote AI Software Engineer — Build Scalable, Impactful Tech

Bending Spoons in the UK is seeking a talented individual to work on AI-powered product experiences. You will collaborate with product teams to transform user experiences and drive impactful AI solutions. Responsibilities include simplifying architectures and maintaining high standards in software development. T ...

Remote AI Software Engineer — Build Scalable, Impactful Tech

Bending Spoons is looking for talented, driven individuals to join their team in the UK. You will build AI-powered product experiences and lead projects from concept to production. Candidates should have strong reasoning skills, high ambition, and proficiency in English. The position offers significant growth op ...

Lead Software Engineer, Post Trade Tech — Scalable Systems

A leading financial technology firm in Greater London seeks an experienced Lead Software Engineer to join an agile team. The successful candidate will focus on enhancing secure, stable technology products and drive innovative technical solutions. Responsibilities include software design, code development, and le ...

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 ...

Software Engineer: Build Scalable Travel Tech with Equity

A technology company in Greater London is looking for a Software Engineer to design, architect, and implement their innovative travel management platform. The ideal candidate will have extensive programming experience in any web programming language, with a focus on backend development, and will thrive in an Agi ...

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