151 to 175 of 276 Principal Engineer Jobs in the UK

As a Future Products Principal Systems Engineer within the newly formed Future Products department; part of Missile Design UK: Emerging Portfolio & Capability function, you will be assigned to take on a variety of roles in support of MBDA's Vision 2040. Salary : Circa £55,000 depending on experience Dynamic (hybrid) working : 3-4 days per week on-site … for paternity leave, neonatal leave and fertility testing and treatments Facilities : Fantastic site facilities including subsidised meals, free car parking and much more... The opportunity: As a Future Products Principal Systems Engineer within the newly formed Future Products department; part of Missile Design UK: Emerging Portfolio & Capability function, you will be assigned to take on a variety of More ❯

Principal Software Engineer £95,000 + Bonus + Benefits | Hybrid (UK) Method is partnering with a leading infrastructure technology company that's rebuilding its software architecture from the ground up. The mission is to create connected, secure, and scalable systems that enable smarter infrastructure, and deliver trusted connectivity across multiple sectors. They're looking for a Principal Software Engineer, a hands-on technical authority who will set engineering standards, solve complex challenges, and shape the next generation of event-driven microservices powering their global platform. The role You'll work at the top of the engineering track, designing and delivering high-performance, distributed systems while guiding others through implementation and problem-solving. This is a More ❯

Your new company A Principal Data Engineer is required on a permanent basis for a forward-thinking organisation at the heart of Leeds. The Data Services team are on a mission to unlock the value of data by delivering high-quality, secure, and accessible data services. With a focus on modern cloud-based technologies and strong partnerships, they … help colleagues navigate the complexities of a data-driven world. Your new role As a Principal Data Engineer, you will be instrumental in shaping the organisations strategic cloud data platform. You'll lead the design and implementation of scalable data pipelines, drive innovation in data-centric products, and champion automation and predictive analytics. This is a senior technical More ❯

Principal/Senior-Staff Engineer Im supporting a global tech company thats going through an exciting transformation and is looking for a high-impact Principal/Senior-Staff Engineer . The role is ideal for someone who thrives at the intersection of deep technical expertise, system design, and collaborative leadership, shaping the direction of complex projects More ❯

Principal Control Software Engineer Hybrid/Onsite to Birmingham About Us At TAE Power Solutions, we design power management systems that use less but do more. From, electric vehicle, drivetrains, ultrafast charging, stationary energy storage and grid efficiencies. We develop a clean energy ecosystem of proprietary technology designed to go faster, perform stronger, travel farther, and last longer. More ❯

Your new company A Principal Data Engineer/Architect is required on a permanent basis for a forward-thinking organisation at the heart of Leeds. The Data Services team are on a mission to unlock the value of data by delivering high-quality, secure, and accessible data services. With a focus on modern cloud-based technologies and strong … partnerships, they help colleagues navigate the complexities of a data-driven world. Your new role As a Principal Data Engineer, you will be instrumental in shaping the organisations strategic cloud data platform. You'll lead the design and implementation of scalable data pipelines, drive innovation in data-centric products, and champion automation and predictive analytics. This is a … you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Desired Skills and Experience Principle Data Engineer/Permanent/Leeds/Hybrid Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying More ❯

Principal Hardware Engineer - Near Edinburgh Hybrid Having placed a number of people into their team ourselves, Lorien's long standing client based near Edinburgh - a leader in their industry with a growing and consistently award-winning product line - have asked us to help them in their searches for a Principal Hardware Engineer to join their team More ❯

Your new company A Principal Data Engineer/Architect is required on a permanent basis for a forward-thinking organisation at the heart of Leeds. The Data Services team are on a mission to unlock the value of data by delivering high-quality, secure, and accessible data services. With a focus on modern cloud-based technologies and strong … partnerships, they help colleagues navigate the complexities of a data-driven world. Your new role As a Principal Data Engineer, you will be instrumental in shaping the organisations strategic cloud data platform. You'll lead the design and implementation of scalable data pipelines, drive innovation in data-centric products, and champion automation and predictive analytics. This is a More ❯

Principal Software Engineer Join a once in a career opportunity to help build a premium private bank from the ground up. Which is currently in stealth mode , backed by significant capital and led by a visionary team. With mobilisation underway, were assembling a lean, elite engineering team to architect and deliver a secure, scalable, multi-cloud banking platform … using modern technologies. This is a career-defining role for a polyglot engineer with deep expertise in Rust and Python , and a passion for building robust systems in highly regulated environments. What Youll Do Design and build core banking services and infrastructure using Rust , Python , and other modern languages. Develop secure, scalable systems across AWS and GCP , leveraging best More ❯

part of our central technology team, you'll help shape the tools and platforms that support more than 2,500 veterinary practices across 20 countries. The Role As a Principal Backend Engineer, you'll lead architectural decisions and hands-on development of complex systems using modern engineering practices and cloud-native design. You Will Provide technical leadership and More ❯

Principal AI Engineer, Artificial Intelligence Collaboration Centre (AICC) Department/School: School of Computing, Engineering and Intelligent Systems Campus: Derry Londonderry OR Belfast Salary: £60,001 per annum Duration: Fixed-Term until 31st August 2028/Full-time Closing Date: 16th November 2025 at 23:30 Reference Number: 038846 - ABOUT US - We are a university with a national … world-class team delivering real-world value from AI and engaging with a wide range of academics involved in applying AI in their research and with industry. As a Principal AI Engineer in the AICC team, you will work with the AICC Research Lead to develop the skills and experience of the full team of AI/ML More ❯

We are looking for a talented and collaborative Senior/Principal Civil Engineer who shares our purpose and desire to make a positive difference to the world around them. Sustainable design is at the heart of our Practice and collectively we can create inspirational designs that will protect our climate and enhance the built environment. As a Senior …/Principal Civil Engineer, you will join our friendly Leeds Studio, bringing with you experience across a mix of sectors including residential, education, commercial, development and regeneration. Collaborative and helpful you will have the opportunity to work closely with high profile private and public-sector clients, influencing with your technical expertise and effective communication skills. Leadership is an … a team of value driven engineers, your skills in project resource planning and deadline management will be fully engaged and developed. We are looking for a progressive and talented engineer who is keen to influence the people around them with the same understanding and empathy that they bring to their engineering. We hope you will share our strong interest More ❯

Job Title: Principal Systems Engineer Location: Frimley. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Negotiable dependant on experience What you'll be doing: Provide oversight and technical ownership of CCS design, leading design decisions and supporting the Engineering Manager in delivering in … and experiences: Essential: Extensive experience in network or software engineering, ideally with a background in operations Ability to take the lead on technical matters and provide expert guidance Chartered Engineer status or working towards Specialist expertise in Combat Systems, particularly in relation to submarines, would be advantageous Familiarity with DOORS and prior hands-on experience using it Proven experience More ❯

to continue delivering innovative designs that address the complex challenges of the water industry, focusing on carbon reduction, sustainability, and community service. We are seeking to recruit a Senior Principal Civil Engineer in Leeds city centre, just a short walk from the train station! You will join a UK-wide team committed to sustainability, the environment, and community … impact. As a Senior Principal Civil Engineer, you will oversee the entire project lifecycle-from asset planning and strategy to concept, outline, and detailed design. You will lead and mentor Engineers, work alongside project design leads to ensure successful project delivery, and utilize Stantec's expertise to deliver cutting-edge designs, supporting and mentoring junior engineers. Learn more More ❯

Bristol Principal Embedded Software Engineer - £80k + great benefits! My client is a leading engineering firm, developing software and hardware for a range of regulated industries. They are looking for a Principal Embedded Software Engineer to join their highly motivated team. This is a very interesting opportunity providing the right candidate the opportunity to work in More ❯

Job summary Are you a network expert ready to keep systems connected and secure? We're seeking a skilled Principal Network Engineer to design, implement, and maintain our critical network infrastructure. If you thrive in fast-paced environments, love solving technical challenges, and want to play a vital role in maintaining a cutting-edge network, we'd love … network monitoring tools and troubleshooting techniques to identify root causes and implement corrective actions, minimising disruptions to critical healthcare services and maintaining service level agreements (SLAs). As a Principal Network Engineer, you will collaborate with multidisciplinary teams to implement network security measures aimed at protecting sensitive healthcare data and ensuring compliance with regulatory requirements. You will assist More ❯

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering happens … project risks, helping teams navigate complex technical challenges. About You Professional knowledge and experience Essential Extensive experience in software engineering, with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies More ❯

Overview The Principal Software Engineer will be a member of the Spacelabs R&D engineering team working on and leading the development of Spacelabs Patient Monitoring and Connectivity (PMC) products. This position requires a deep understanding of solid design and development practices and the ability to apply those to Spacelabs product development. The person will be responsible for … performance and cybersecurity needs of our customers. A strong systems approach to product development will be necessary in this role. You will spend your time as a hands-on engineer and a technical leader. Our team plays a key role in building software products and features. You will use a wide range of technologies, programming languages and systems. You More ❯

as the Lower Thames Crossing and the A9 - Tomatin to Moy. We are reinforcing our excellent technical teams in response to these commitments. We are seeking a Senior or Principal Civil Engineer with a focus on drainage design to strengthen our technical teams and lead a team of drainage engineers based in the UK. This is a fantastic … and proposals as well as work to Mott MacDonald's global standards and review Health, Safety and Welfare alongside environmental impact. Candidate specification We are seeking a Senior or Principal Civil Engineer with a focus on drainage design to strengthen our technical teams and lead a team of drainage engineers based in the UK. We are looking for More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Overview Mesh-AI are seeking an exceptional Principal Software Engineer to lead delivery of exciting engagements within our Energy & Commodities Trading sector. This role demands a unique combination of hands-on technical excellence and deep domain expertise in trading environments. You will architect and implement critical solutions that power real-time trading decisions, while mentoring teams and driving More ❯