26 to 39 of 39 Principal Software Engineer Jobs in the UK

scalable solutions deliver critical patient data across local and remote systems, enabling better decisions, increased efficiency, and safer care. We’re seeking a Principal Software Engineer to lead the development of our Patient Monitoring and Connectivity (PMC) products. This hands-on role combines technical leadership with deep … expertise in software design and development. You'll collaborate across functions to architect, build, and deliver next-generation patient monitoring solutions that meet rigorous performance, usability, and cybersecurity standards. Key Responsibilities: Lead software architecture, design, and development for PMC products Define and review requirements, connectivity, and UI designs ...

Principal Embedded Software Engineer £75,000 - £90,000 + equity London (3 days per week in office) Overview TalentEdge Technology are looking to hire a Senior Embedded Engineering Leader to take ownership of the firmware stack for a next-generation, AI-enhanced connected music hardware platform. This … role is hands-on and deeply technical, suited to an engineer who enjoys working across the full embedded stack, from low-level hardware bring-up through to cloud-connected features and who places a premium on robustness and real-world reliability. What You’ll Be Working On: Ownership ...

Principal Front End Software Engineer with a passion for code, architecture, best practise, and a huge believer in driving what quality engineering looks like required by health tech success story. Working remotely (within UK only) with in person engineering get togethers quarterly (London), we are looking … vastly experienced Front End (JavaScript) Senior Engineer (15+ years experience) who has a wealth of expertise (and war scares to prove). Tech stack is JavaScript, Typescript, React, Azure, SQL, Microservices etc but real key here is someone who relishes tackling and solving engineering problems and more importantly, loves ...

Principal Front End Software Engineer with a passion for code, architecture, best practise, and a huge believer in driving what quality engineering looks like required by health tech success story. Working remotely (within UK only) with in person engineering get togethers quarterly (London), we are looking … vastly experienced Front End (JavaScript) Senior Engineer (15+ years experience) who has a wealth of expertise (and war scares to prove). Tech stack is JavaScript, Typescript, React, Azure, SQL, Microservices etc but real key here is someone who relishes tackling and solving engineering problems and more importantly, loves ...

Contract Software Engineer (Ada) – Real-Time Embedded Location: Luton (Hybrid – ~4 days on-site) Contract Length: 12 months IR35: Inside IR35 Rate: £57.72 p/h PAYE (£66.11p/h inc. holiday rate) OR £78.70 p/h Umbrella We seek an engineer with recent high-integrity … industry experience (defence, aerospace, or similar), or eligible for UK security clearance. The Opportunity We're looking for an experienced real-time embedded Ada engineer to work on mission-critical defensive systems within a highly technical electronic warfare environment. This is a hands-on role developing, integrating, and testing ...

Principal Front End Software Engineer with a passion for code, architecture, best practise, and a huge believer in driving what quality engineering looks like required by health tech success story. Working remotely (within UK only) with in person engineering get togethers quarterly (London), we are looking … vastly experienced Front End (JavaScript) Senior Engineer (15+ years experience) who click apply for full job details ...

Contract Software Engineer (Ada) - Real-Time Embedded Location: Luton (Hybrid - 4 days on-site) Contract Length: 12 months IR35: Inside IR35 Rate: £57.72 p/h PAYE (£66.11p/h inc. holiday rate) OR £78.70 p/h Umbrella We seek an engineer with recent high-integrity ...

Contract Software Engineer (Ada) – Real-Time Embedded Location: Luton (Hybrid – ~4 days on-site) A variety of soft skills and experience may be required for the following role Please ensure you check the overview below carefully. Contract Length: 12 months IR35: Inside IR35 Rate: £57.72 p/… PAYE (£66.11p/h inc. holiday rate) OR £78.70 p/h Umbrella We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, xxuwjjq or similar), or eligible for UK security clearance. The Opportunity We're looki... ...

seeking a Principal Embedded Software Engineer to take a leading role in the development and evolution of our embedded software across both new products and established designs. This position is ideal for an experienced engineer who enjoys guiding technical direction, mentoring others, and driving projects … completion in a practical, real‑world engineering environment. About the Role As a senior member of the engineering team, you will shape software architecture, lead development activities, and ensure high‑quality delivery across multiple projects. You’ll work closely with multidisciplinary teams — including hardware, systems, test, and product ...

Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You’ll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI’s global ...

looking for a senior Front End Software Engineer who can be the technical go-to person in their area, offering guidance, mentorship, and hands-on expertise. You will be a proven senior who still loves to code, enjoys taking ownership of front-end decisions, and wants to play … practices and setting high technical standards. Working closely with product managers, QA, designers, and other engineers, taking on and integrating feedback. Delivering fully tested software iteratively and continuously. Creating beautiful, usable, user friendly solutions. Scoping projects, identifying opportunities, and delivering effective solutions. Prototyping new ideas and pushing boundaries ...

Front End-leaning Principal engineer who wants to combine your experience in web and AI to help unlock other engineering teams, this might be the role for you. This role will also be an opportunity to apply AI to real-world problems inside a healthy, profitable, and rapidly … time. You will help them stay ahead of the curve by solving both technical and sociotechnical problems. You would be joining a squad of Principal engineers with different expertise that serves as a centre of excellence to the 16+ engineering teams in the wider engineering function. Your domain? Everything ...

seeking a Principal/Senior Embedded Software Engineer to take a leading role in the development and evolution of our embedded software across both new products and established designs. This position is ideal for an experienced engineer who enjoys guiding technical direction, mentoring others … projects to completion in a practical, real‐world engineering environment. About the Role As a senior member of the engineering team, you will shape software architecture, lead development activities, and ensure high‐quality delivery across multiple projects. You’ll work closely with multidisciplinary teams — including hardware, systems, test ...

Senior Backend Engineer | London | £100,000 - £160,000 | Python | FastAPI | Systems Location: London based - hybrid Salary: £100,000 - £160,000 + equity Tech Stack: Backend: Python (FastAPI) Cursor, Claude Code AWS Are you a backend engineer who cares more about building robust systems than chasing AI hype … them into reliable systems Contribute to architectural decisions and long term platform evolution Requirements for Success Strong experience as a backend or systems focused engineer Deep Python experience with excellent engineering fundamentals, or equivalent depth in a strongly typed language Strong SQL skills and experience designing schemas Experience building ...