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    Software Engineer C/C/++/ C#/ Python

    Overview Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world‑class solutions in communications, 5G, automotive, energy, quantum ...

    Principal Software Engineer Hybrid Leader (Manchester)

    A leading banking organization in Manchester is seeking a Principal Software Engineer to oversee engineering teams and drive technology initiatives. You'll mentor engineers and architect scalable systems, ensuring compliance and driving innovation. The ideal candidate possesses strong knowledge in modern enginee ...

    DSP Embedded Engineer — SDR & FPGA Software

    A leading technology company in Crawley is seeking a DSP Embedded Software Engineer to develop DSP algorithms for Software Defined Radios (SDRs). The ideal candidate should be proficient in MATLAB/Simulink and C/C++, with experience on FPGA devices. The role requires effective collaboration with technical leader ...

    Principal Software Engineer: Cloud Modernisation Lead

    AVEVA Denmark is seeking a Principal Software Engineer to lead the modernisation of sophisticated process optimisation platforms. This role combines architectural leadership with hands-on software development, transforming a legacy C++ codebase and shaping the future of industrial software. The ideal c ...

    Software Engineer C# .Net Low Latency

    Software Engineer / Developer (C# .Net Low Latency) London to £90k Are you a technologist who enjoys contributing to technical discussions and using the best tool for the job? You could be progressing your career at a global, financial Market Data provider whilst enjoying a ran ...

    Software Engineer I: Backend & Distributed Systems

    American Express is seeking a Software Engineer to contribute to highly scalable backend systems in their Modern Money Movement team. This role involves developing payment capabilities and working within an Agile Scrum team. Candidates should have experience in backend development, ideally with Java or ...

    Principal Software Engineer, Policy Platform & AI

    Menlo Security Inc. is seeking a Principal Software Engineer I for the R&D Policy Team in Bracknell, UK. This role involves architecting critical services in a cybersecurity context, focusing on policy management and enforcement. The ideal candidate will have extensive experience in backend development, cloud ...

    Flood Modelling Software Engineer (Flexible Work)

    Jacobs in Leeds is seeking an Experienced Hydraulic Modeller with a passion for coding to join our Hydroinformatics team. You will develop innovative tools to tackle flood risk and climate resilience challenges. Key qualifications include excellent Python skills, experience with tools like Flood Modell ...

    Flood Modelling Software Engineer (Flexible Work)

    Jacobs is seeking an Experienced Hydraulic Modeller based in Manchester to join the Hydroinformatics team. You will play a pivotal role in developing innovative digital solutions across flood risk and water management, leveraging your expertise in hydraulic modelling and strong Python coding skills. Th ...

    Security Clearance Software Engineer Android & Backend

    Addition is looking for a skilled engineer in Farnborough to design and develop secure software solutions. The role involves building Android applications and backend services using Kotlin, Rust, Python, or Go, while collaborating closely with various teams. With a focus on continuous improvement, you ...

    Quantum Software Engineer (Compilers) — Hybrid, Equity

    Universal Quantum is seeking a Software Engineer to develop software for quantum processors in Haywards Heath. The role involves designing and integrating software, collaborating with multidisciplinary teams, and optimizing quantum computing processes. Applicants should have over 5 years of experience ...

    Frontend Software Engineer Frictionless Shopping UX

    On the Beach in Manchester is seeking a Software Engineer IC2 (Mid Level) to join the Shopping Experience team. In this role, you will build user-friendly experiences that help customers customize their holiday packages. You'll work closely with cross-functional teams to improve customer outcomes and drive bu ...

    Quantum Software Engineer Hybrid, UK Based

    A national laboratory for quantum computing in Oxfordshire is seeking two Software Engineers to enhance the UK’s quantum capabilities. You will collaborate with leading scientists and work on software for quantum computing systems. Strong skills in C# and .NET are essential, along with a relevant degree. This ro ...

    Junior Embedded Software Engineer – R&D

    Cubic Corporation in Camberley is seeking a motivated Junior Developer to join their dynamic R&D team. The successful candidate will work on the Vocality RoIP, contributing to networking, LTE, and Push-To-Talk radio communications. This opportunity is perfect for those eager to expand their skills in s ...

    Software Engineer, Frontier AI Platform (Hybrid)

    Faculty in Greater London is seeking a Software Engineer to join their Technology team. You will significantly scale the Frontier Decision Intelligence platform aiming to build a high-impact AI-focused product. The role involves contributions to complex problems in healthcare logistics and military operations ...

    C++ Software Engineer Command & Control Systems

    AEROCONTACT in Bristol seeks a C++ Software Engineer to contribute to developing next-generation air defence systems. This hands-on role involves designing command and control architectures and collaborating with stakeholders to refine solutions. The ideal candidate will have a strong software engineer ...

    SoC Systems Software Engineer Kernel & Prototyping

    Apple is seeking a Systems Engineer for their Platform Architecture group in Cambridge, UK. In this role, you'll design and build high-performance functional models of advanced SoC designs while collaborating with cross-functional teams. You will help bridge the gap between hardware and software, influencing ...

    FinCrime Software Engineer – Trust & Safety (Hybrid)

    Wise is seeking a Software Engineer for its Trust and Safety team in Greater London. This high-impact role is focused on solving real-world problems to protect customers against financial crime. You will create robust systems and controls, improving fraud prevention and customer security. The role requ ...

    Software Engineer – Web Apps & Platform Modernisation

    Aviva is looking for a Software Engineer in Sheffield or York to develop and maintain web applications within a collaborative team. This role offers an opportunity for career growth, participating in the modernization of legacy tech and implementing new projects. The ideal candidate will have experienc ...

    Founding Software Engineer Up to £200K

    We’re working with an early-stage startup building AI voice agents used by real businesses (not demos). This is a true founding engineer role — you’ll have a direct hand in shaping the product, architecture, and how the company builds from day one. What you’ll be doing Build ...

    Staff Machine Learning Software Engineer, Research

    Overview PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fi ...

    Chief Software Engineer and Team Leader

    Role: Chief Software Engineer and Team Leader Location: Milton Keynes / London (Hybrid) Salary Range: £88k - £95K + discretionary bonuses Active SC Clearance preferred Responsibilities Your main responsibilities will be to. Oversee the ...

    Space Software Engineer — Hybrid (Python/C++)

    MDA Space and Robotics Ltd in East Hagbourne is seeking a Software Engineer to design and develop software for space technology. The role involves innovation in a team-oriented environment, with responsibilities spanning software design, problem-solving, and robust documentation. Candidates should have ...

    Associate Software Engineer Data Intelligence (ADX)

    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 portfolio view and delivers AI‑powered insights within investment and client wor ...

    Software Engineer III JPM Personal Investing

    Job Responsibilities Deliver end-to-end cutting‑edge solutions in the form of cloud‑native microservice architecture applications leveraging the latest technologies and the best industry practices. Design, estimate costs for and implement technical solutions written in Java/Kotlin ...

    Graduate Software Engineer Remote Android Apps

    A leading technology company in Glasgow seeks a Graduate Software Engineer to develop cutting-edge mobile applications. This role involves writing Java and participating in the complete software development life cycle while working in an agile team environment. Ideal candidates are recent graduates with strong c ...

    Lead Software Engineer Securities Lending Glasgow

    Join us and shape the future of financial technology with Prime Finance Services. You’ll have the opportunity to architect and deliver market-leading solutions in a fast-paced, global environment. Collaborate with top technologists across Hong Kong, Singapore, Glasgow, and Mumbai, and push the boundaries o ...

    Embedded Firmware & Software Engineer – Rail Signalling

    Unipart Technologies Group is seeking a Firmware/Software Engineer to join their team in Stockport. This role involves designing and implementing innovative solutions for signalling and train control systems within the railway engineering field. Key responsibilities include writing firmware for embedde ...

    Software Engineer, Data in London Kharon

    Software Engineer, Data London, United Kingdom Posted 10 months ago Tech stack Django FastAPI Python ecosystem Flask NumPy REST Requirements Authorization to work in your country of r ...

    Low Latency E Trading Software Engineer

    For additional information, please review .**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make ...

    Staff Software Engineer in London Booksy

    Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

    Kyriba Specialist Software Engineer I — Hybrid

    Checkout Technology Ltd in Greater London is looking for a software engineer to develop next-generation payment technologies. You will lead solution design for the Kyriba Treasury Management System and engage with stakeholders to ensure project success. Qualified candidates will have at least 3 years o ...

    Staff Software Engineer, Product Engineering, UK

    About the Role Our engineering culture strives to create an environment where engineers own and deliver product features end‑to‑end, from research through design to implementation. As a product engineer, you will write product specs, create wireframes, and build the product with minimal oversight ...

    Graduate Software Engineer: AI & Networking Systems

    A leading technology firm is seeking a dynamic Software Development Engineer in Cambridge, UK. Ideal for recent graduates, the role involves validating software features, collaborating with teams, and contributing to next-generation software for networking solutions in a hybrid work environment. Candidates shoul ...

    Software Engineer II Frontend (React/TypeScript)

    ## Software Engineer II - Frontend (React/TypeScript)Applyremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: JR # **Welcome to the Agentic Commerce Era**## At Commerce, our mission is to empower businesses to innovate, grow, and thrive wit ...

    Computational Software Engineer Intern (3 months)

    Computational Software Engineer Intern (3 months) Abingdon – United Kingdom Job Title: Computational Software Engineer Intern (3 months) – Starting Summer 2026 Project Title: Development of a Bounary Element Method Solver for Porous Media Flow About SLB: ...

    Software Engineer (100% Backend, Python & AWS)

    Software Engineer (Backend, Python & AWS) – Travtus London (Hybrid – 3 days/week in Farringdon office) • Full-time • Salary: £60,000-£80,000 Job Summary We’re building the next generation of AI products in Multifamily real‑estate. We need a backend engineer to architect reusable ...

    Devices Software Engineer (C#/.NET, Microservices)

    A tech consulting firm in Poole is seeking a Software Engineer to join their Devices Team. This position involves developing microservice-based solutions largely in C# within a Scrum team. Candidates should have at least 1 year of experience in C#/.NET software development and familiarity with REST interfaces. T ...

    Hybrid Software Test Engineer – Automation & Quality

    A technology solutions provider based in Great Torrington seeks a Software Test Engineer. This entry-level role involves developing and executing test plans, identifying issues, and ensuring software quality. Ideal candidates will have an analytical mindset, a passion for testing, and a collaborative approach to ...

    Embedded Software Engineer – AI & Data Center

    A leading technology company in Belfast is looking for a Software Design Engineer to join their Data Centre design team. This role involves developing and verifying embedded software for next-generation AI products, with a strong focus on innovation and collaboration. Candidates should have a proven track record ...

    Founding Software Engineer Cybersecurity Startup (London)

    Oho Group is looking for a Founding Software Engineer in London to help build the future of cybersecurity. This role provides a unique opportunity to join a founding team recognized for successfully scaling security companies. The ideal candidate will design and build core systems, solve complex securi ...

    Hybrid Principal Software Engineer & Tech Leader

    8th Light is seeking a Principal Engineer in London to lead AI integration and technical strategy. You will collaborate with clients, guide technical direction, and mentor teams to ensure high-quality software solutions. Ideal candidates will have 10+ years of experience in consulting, a solid technical backgrou ...

    Lead HVDC Control & Protection Software Engineer

    AL8238 UK Grid Solutions Limited is seeking a Lead Engineer to join their Product Care Department. This role involves leading the design and development of innovative modelling techniques for HVDC systems while mentoring a team of engineers. The ideal candidate will have experience in HVDC control engi ...

    Software Engineer — Government‑Tech, TDD & Pairing

    Opencast | B Corp™ is looking for a Software Developer in Greater London. This role emphasizes building software with engineering craft and collaboration. Candidates should have expertise in Java or Scala, and hold or be eligible for SC Clearance. Responsibilities include collaborating on testing efforts, implem ...

    Lead Embedded Software Engineer C / C++

    An exciting opportunity has arisen for a Lead Embedded Software Engineer based in East Sussex to join this global leader in cutting edge electronic instrumentation. Joining their multidisciplined R&D team at their global centre of excellence, as a Lead Embedded Software Engineer you will develop and su ...

    Software Development Engineer in Test (SDET)

    AVEVA is creating software trusted by over 90% of leading industrial companies.Job Title: Software Development Engineer in Test (SDET)Location: Derry/Londonderry or Cambridge, United Kingdom (Hybrid)Employment Type: Full TimeThe jobWe’re lo ...

    Automotive Software Validation Engineer: HiL & AUTOSAR

    Expleo is looking for an experienced Automotive Software Test & Validation Engineer in Guildford, UK. This key role focuses on ensuring the quality and safety of embedded software in modern vehicles. You will develop and execute testing strategies in an Agile environment, collaborating closely with cross-func ...

    AIML Software Engineer, AI for Science

    At GSK, we are actively working on building a future in which state-of-the-art software, Artificial Intelligence (AI) and Machine Learning (ML) enable us to develop new therapies and personalized medicines that drive better outcomes for patients at reduced cost with fewer side effects. This ambitious mission req ...

    Lead Software Engineer Java, AI, AWS

    Are you passionate about building technology that transforms the way businesses operate? Join us and lead the development of advanced AI and data engineering solutions within a collaborative, agile environment. At JPMorganChase, you'll have the opportunity to shape impactful products, work with cut ...

    Quant Trading: C# Software Engineer (Newcastle)

    Client Server is seeking a C# Software Engineer to join their team in Newcastle upon Tyne. The role offers a competitive salary of up to £120,000 per annum plus bonuses and benefits. Ideal candidates will hold a minimum 2.1 degree in Computer Science or Mathematics from a prestigious university and have advan ...

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      Senior Software Engineer Pythonjava Life Sciences Jobs in United Kingdom Job Search Guide, Trends and Insights