26 to 50 of 74 Principal Software Engineer Jobs in the UK

Principal Embedded Software Engineer | £80-90k | Cambridge An exciting medium-sized consultancy is looking for an experienced software engineer to join their driven & motivated team. Youll report directly to the Head of Engineering and have a significant degree of authority over the architecture … each project. This is a fantastic opportunity for a software xkybehq engineer with previous consultancy experi Is this the role you are looking for If so read on for more details, and make sure to apply today. Please click on the apply button to read the full ...

Principal Embedded Software Engineer Winfrith, Dorset (hybrid working, 3 days per week onsite) – Permanent vacancy We are looking for a Principal Embedded Software Engineer to work for our maritime defence client TKMS Atlas across a range of new projects, such as underwater vehicle control … systems and sonar equipment. You will be hired as an experienced xkybehq engineer to play a senior technical hands-on r Apply fast, check the full description by scrolling below to find out the full requirements for this role. Please click on the apply button to read the full ...

Prinicpal Software Engineer Next.js | React | GitHub Actions 📍 Hammersmith (Hybrid) 💰 £100,000 to £110,000 Build modern products. Not legacy patches. We’re hiring a Principal Software Engineer to help shape and scale high-performance web applications using Next.js and React . This … Join? Modern stack Hybrid working (Hammersmith base) Real ownership and autonomy Engineering-led culture £100k to £110k salary band If you’re a senior engineer who wants to influence architecture, improve systems, and work in a team that values quality — let’s talk. ...

Principal Software Engineer - Level 6 Site: Southampton Rate: £66.67 P/H Umbrella Overview An opportunity for an experienced Embedded Software Engineer to contribute to the development of next-generation airborne communication systems within the defence sector. The role focuses on low-level (“bare metal … software development for real-time, safety-critical environments. Key Responsibilities Design, develop, and implement embedded software solutions for real-time and safety-critical systems Write efficient, reliable code for low-level (bare metal) applications Contribute to the full software development lifecycle, including design, coding, and testing Collaborate ...

Title: Principal Embedded Software Engineer Location: Bradford Salary: Up to £75k (depending on experience) We’re partnering with an established technology engineering organisation seeking a Principal Embedded Software Engineer to lead software architecture, technical delivery, and development strategy across advanced embedded systems. This … senior, hands-on role combining system architecture, embedded software development, and project ownership. You will guide technical direction and ensure high-quality delivery across the full software lifecycle. A key aspect of this position is applying electrical power systems knowledge and protection function theory within embedded control ...

Description Principal Embedded Software Engineer | £80-90k | Cambridge An exciting medium-sized consultancy is looking for an experienced software engineer to join their driven & motivated team. Youll report directly to the Head of Engineering and have a significant degree of authority over the architecture … each project. This is a fantastic opportunity for a software engineer with previous consultancy experi... ZIPC1_UKTJ ...

Title: Principal Embedded Software Engineer Location: North West & Yorkshire Offices Salary: Up to £75k (depending on experience) We re partnering with an established technology engineering organisation seeking a Principal Embedded Software Engineer to lead software architecture, technical delivery, and development strategy across advanced … embedded systems. This is a senior, hands-on role combining system architecture, embedded software development, and project ownership. A key aspect of this position is applying electrical power systems knowledge and protection function theory within embedded control environments. If you re a senior embedded engineer looking to influence ...

Title: Principal Embedded Software Engineer Location: North West & Yorkshire Offices Salary: Up to £75k (depending on experience) We’re partnering with an established technology engineering organisation seeking a Principal Embedded Software Engineer to lead software architecture, technical delivery, and development strategy across advanced … embedded systems. This is a senior, hands-on role combining system architecture, embedded software development, and project ownership. A key aspect of this position is applying electrical power systems knowledge and protection function theory within embedded control environments. If you’re a senior embedded engineer looking to influence ...

Principal Software Engineer - Level 6 Site: Southampton Rate: £66.67 P/H Umbrella Overview An opportunity for an experienced Embedded Software Engineer to contribute to the development of next-generation airborne communication systems within the defence sector click apply for full job details ...

Principal Engineer – Scalable SaaS/Data Platforms Location: UK remote (optional office presence - South West) The Brief We are supporting a fast-growing technology organisation in the search for a Principal Engineer to help scale a complex, globally deployed SaaS platform. This is a senior individual … scaling platform capability - supporting increased data volumes, users, and integrations while maintaining reliability and speed. The Candidate We are looking for an experienced engineer with deep technical expertise and a track record of operating at scale: Strong background in software engineering and system design Experience building and scaling ...

Principal Engineer Post-Purchase & Fulfilment | London (Hybrid) | Up to £155,000 Principal Engineer's! Own the end-to-end architecture of how a physical product moves from factory floor to customer doorstep. Design led consumer brand with over 30 million customers worldwide. This is a rare ...

Principal Engineer (.NET) - £90k + bonus | Consultancy | Leeds/hybrid In an AI-driven world, the consultants who’ll thrive aren’t just technical experts. They’re the people who can influence, identify opportunities and turn conversations into long-term partnerships. We’re looking for a Principal Engineer/Consultant who wants to play a bigger role in shaping solutions, driving AI innovation and building trusted client relationships. About the business Join a consultancy with 10+ years in the market that has built a strong reputation within AI, Machine Learning and Tech4Good. ...

Principal Engineer Post-Purchase & Fulfilment | London (Hybrid) | Up to £155,000 Principal Engineer's! Own the end-to-end architecture of how a physical product moves from factory floor to customer doorstep. Design led consumer brand with over 30 million customers worldwide. This is a rare ...

Description Principal Embedded Software Engineer Winfrith, Dorset (hybrid working, 3 days per week onsite) – Permanent vacancy We are looking for a Principal Embedded Software Engineer to work for our maritime defence client TKMS Atlas across a range of new projects, such as underwater vehicle … control systems and sonar equipment. You will be hired as an experienced engineer to play a senior technical hands-on r... ZIPC1_UKTJ ...

Principal Robotics/C++ Software Engineer London (Hybrid) Define how a complex, real‐world system scales — technically and organisationally. At sees.ai, we’ve built a system that enables unmanned aerial systems to carry out inspections of critical national infrastructure, making these missions repeatable, scalable, and commercially viable … entering the next phase: scaling that system into a robust, production platform and building the engineering organisation around it. We’re looking for a Principal Robotics/C++ Software Engineer to lead that transition. The Role This role goes beyond a typical senior engineering position. ...

Software Test Engineer – SC Cleared - Luton Our client is looking for an experienced Software Test Engineer to support the delivery of current and future programmes. This role provides an opportunity to work on the latest technology within a mature development environment. Your Role • Create test cases … results, produce detailed reports, and provide recommendations for improvements. • Ensure compliance with company standards and internal processes. About You: As an experienced SC Cleared, Software Test Engineer, your skills and experience will include; • ISTQB Foundation level knowledge • Strong background in testing complex real-time embedded systems. • Proficiency ...

Principal AI Engineer Up to £110,000 + Bonus Hybrid | London We’re partnered with a global leader in loyalty and customer engagement, looking for a Principal AI Engineer to join their London team. This role will include delivering customer centric solutions and scale production-grade … closely with the Head of AI Labs, you’ll lead the delivery of advanced AI systems that deliver real business impact. Responsibilities as a Principal AI Engineer: Lead end‐to‐end delivery of scalable, resilient AI/ML pipelines aligned to business goals. Build and deploy advanced ...

Senior/Principal Software Engineer Application Deadline: 31 May 2026 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £70,000 - £100,000/year Description Please note: This role requires applicants to hold active, or recently active, SC or DV clearance. This role also … kind that have to be secure, scalable, and actually usable by the people who rely on them. We’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help ...

Senior/Principal Software Engineer Application Deadline: 31 March 2026 Department: Software Engineering Employment Type: Permanent Location: Cheltenham (Hybrid) Compensation: £70,000 - £100,000/year Description Please note: This role requires applicants to hold active, or recently active, SC or DV clearance. This role also … kind that have to be secure, scalable, and actually usable by the people who rely on them. We’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help ...

leading aerospace technology company in Tewkesbury is seeking an experienced Senior Principal Software Engineer to drive software development for advanced flight control and actuation systems. This hybrid role requires over 15 years in software engineering, in-depth expertise in safety-critical software, and proficiency ...

leading aerospace technology company in Tewkesbury is seeking an experienced Senior Principal Software Engineer to drive software development for advanced flight control and actuation systems. This hybrid role requires over 15 years in software engineering, in-depth expertise in safety-critical software, and proficiency ...

Description Principal Engineer Post-Purchase & Fulfilment | London (Hybrid) | Up to £155,000 Principal Engineer's! Own the end-to-end architecture of how a physical product moves from factory floor to customer doorstep. Design led consumer brand with over 30 million customers worldwide. This ...

About the Role We’re seeking a highly skilled and experienced Principal Embedded Displays Software Engineer (Qt) to lead the development of advanced Human–Machine Interface (HMI) applications for next‐generation embedded display systems. In this senior technical role, you will drive technical excellence across display software … robust user interfaces using the Qt framework. You will also act as a technical leader and mentor, supporting the growth and development of software engineers within the team while collaborating closely with cross‐functional stakeholders. This role is ideal for someone passionate about embedded HMI technology who enjoys combining ...

Office - Full time hours We are happy to discuss flexible working! Top 3 skills needed for this role: AI‐Augmented Engineering Leadership Enterprise‐Scale Software Architecture Engineering Governance in Regulated Environments What this role is all about: Our Software Engineers play a critical role in Vitality’s successful … business model by building and maintaining software solutions, in line with quality and time parameters, to enable operation as a fully integrated composite business, offering brilliant products with seamless, intuitive customer journeys. The Principal Software Engineer leads and plans development across large or multiple teams, providing ...

Principal Software Engineer This is a pivotal technical leadership role within a rapidly growing consultancy. You will spearhead the design of complex digital twins and synthetic environments, providing high-level strategic advice on innovation to key UK defence stakeholders. The essentials Sole British nationality is required … this position. At least 7+ years of experience in software engineering Proficient in C++ and Unreal 5 Strong background in mathematical principles or statistical problem-solving within scientific fields. Your package A comprehensive private healthcare scheme and health cash plan The work Lead the end-to-end design ...