26 to 50 of 276 Principal Engineer Jobs in the UK

Principal RF Engineer As the selected Principal RF Engineer , your role will be split between designing RF systems at component level, and providing technical leadership for the development of projects. The right candidate will have a solid background in RF design, experience of taking a leading role on engineering projects and be an excellent communicator. The … role is an 80/20 split in favour of design to leadership. Responsibilities for the role of Principal RF Engineer will include: Designing and developing RF systems at the component level. Conducting performance tests and optimizations to meet specified performance criteria. Leading integration and prototyping efforts to ensure seamless integration of sub-systems with larger systems or … support on technical issues. Engage in project management activities, such as updating project timelines, managing resources, and communicating with stakeholders to ensure project milestones are met. As the selected Principal RF Engineer, your experience will include: RF electronics design background. Strong ability to demonstrate technical leadership within a product development environment. Experience of specifying technical requirements and taking More ❯

Principal Systems Engineer The Role: As a Principal Systems Engineer at Synoptix you will be helping guide the scope and direction of the engineering projects you are working on. As an agile business in the true sense the principal engineer will be given the relative freedom to take ownership at the strategic level of More ❯

Principal Systems Engineer The Role: As a Principal Systems Engineer at Synoptix you will be helping guide the scope and direction of the engineering projects you are working on. As an agile business in the true sense the principal engineer will be given the relative freedom to take ownership at the strategic level of More ❯

Principal Software Engineer - Lead the Future of UK GovTech Innovation Up to £100,000 + Premium Benefits Package Remote-First | Just 1 Day Onsite Every 2 Weeks SC Clearable | British Citizens Only Where Technology Meets Purpose Are you ready to lead engineering efforts that directly impact national security, public services, and digital transformation across the UK? This is … more than just a job-it's a chance to build technology that matters , in a space where innovation meets mission-critical delivery. We're looking for a Principal Software Engineer to join a high-performing team at the forefront of UK GovTech. You'll architect secure, scalable platforms, mentor elite engineers, and shape technical strategy across programmes … that serve millions of citizens and protect national interests. Your Mission As a Principal Engineer, you'll be a technical leader, strategic thinker, and hands-on problem solver. You'll work closely with delivery teams, stakeholders, and government partners to ensure solutions are robust, secure, and future-proof. What You'll Be Doing: Architect cloud-native platforms using More ❯

Principal Hardware Engineer | Marine | AUV | Robotics | Harwell – Hybrid | £65,000pa - £70,000pa plus share scheme & benefits: A once in a lifetime opportunity has arisen for a passionate Principal Hardware Engineer to join a stealth robotics company based in the Oxfordshire area. This amazing business and AUV submersible robot have massive potential across a range of different … industry sectors. The Principal Hardware Engineer will lead in the design, integration, and testing of advanced hardware systems for autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs). In this role, you will be responsible for developing mission-critical electronics and system architectures that operate reliably in challenging marine environments. If you’re passionate about robotics within … the maritime industry and the autonomous vehicle and unmanned vehicle industry, you honestly need to make contact with us, this Principal Hardware Engineer role is not to be missed. Candidates must be British Citizens or have lived in the UK for a minimum of 5 years, due to needing SC clearance. Key Responsibilities: Lead the architecture and development More ❯

Qualifications, skills, and all relevant experience needed for this role can be found in the full description below. Principal Engineer - Wireless Job Description When you join our Engineering Team at Telent, you'll be empowered to innovate and drive common solutions, working closely with technical experts who are proud of the impact their work makes. Come join a … team doing complex and critical work. Help build and keep the nation's critical infrastructure connected and protected 24/7. Reporting into the Head of Focal Engineering, the Principal Engineer will work on a number of exciting Wireless Design and Implementation projects for customers across England in the Education and Government sectors as well as others. This … design and implementation of enterprise-grade wireless network solutions across universities in England, leveraging Cisco and Juniper technologies to deliver secure, scalable, and high-performance connectivity. Act as the principal design authority, setting technical direction, standards, and best practices for campus wireless and wired infrastructure, ensuring alignment with university digital transformation objectives. Develop and review detailed low-level designs More ❯

Principal Engineer – Technology Consulting – Java/Spring London, Leeds, Manchester or Newcastle | Permanent | Hybrid (3 days onsite) £87,000–£118,000 + up to 20% bonus + exceptional benefits Join a forward-thinking technology consultancy as a Principal Engineer and take the lead on delivering complex, high-impact solutions for clients across the UK. This is More ❯

Principal Engineer – Technology Consulting – Java/Spring London, Leeds, Manchester or Newcastle | Permanent | Hybrid (3 days onsite) £87,000–£118,000 + up to 20% bonus + exceptional benefits Join a forward-thinking technology consultancy as a Principal Engineer and take the lead on delivering complex, high-impact solutions for clients across the UK. This is More ❯

Principal Engineer – Technology Consulting – Java/Spring London, Leeds, Manchester or Newcastle | Permanent | Hybrid (3 days onsite) £87,000–£118,000 + up to 20% bonus + exceptional benefits Join a forward-thinking technology consultancy as a Principal Engineer and take the lead on delivering complex, high-impact solutions for clients across the UK. This is More ❯

Principal Software Engineer | C++ | Python | Linux Oxfordshire | Hybrid £65,000pa plus benefits: Do you enjoy technically leading and mentoring a team of Software Engineers utilising C++ & Python on Linux, passing on your knowledge and experience to help nurture and develop future Engineers? If so, this Principal Software Engineer role will be perfect for you. Our client … has seen rapid growth over the last few years, and to help develop their talented team of Software Engineers, they now seek a Principal Software Engineer who can technically lead, mentor and develop during an exciting period of innovation. On a day-to-day basis you will develop and support software applications and drivers for a range of … products. You will be technically responsible for ensuring projects meet internal and external customer requirements and completing concept designs through to production. The successful Principal Software Engineer will need the following qualification, experience and skills: A degree in a Software Engineering, Mathematics or Science/Materials subject Experience in ARM based software developments using C/C++ Experience More ❯

Principal Software Engineer - .NET/C#/AWS/CI/CD .NET, C#, AWS, JavaScript, DevOps, Agile, CI/CD Salary up to £75-80k + Bonus scheme Hybrid - 3 days a week on-site (Greater Manchester) For more information, please email me directly at or call on/Who We Are: We're a fast … self-organising squads, our teams are empowered to design, build, and deliver scalable, high-performance systems that shape the future of our business. We're now looking for a Principal Software Engineer to take a leading role in guiding our engineering direction, mentoring talented developers, and driving the adoption of modern technologies and best practices. Who We're … Seeking: We're seeking a Principal Software Engineer with deep expertise in .NET, C# and AWS who will play a key part in architectural decision-making, helping teams balance innovation and reliability while championing best practices. You'll work closely with other Principal Engineers, Product Owners, and cross-functional teams to deliver robust, maintainable, and scalable solutions More ❯

Principal SecOps Engineer - Hybrid - Nottinghamshire - Up to £75000 + Bonus We're seeking an experienced Principal SecOps Engineer to take a leading role in strengthening our clients' security operations. This is a hands-on, strategic position within the Technical Operations team, where you'll set the direction for security practices, guide incident response, and support the … Healthcare cash plan, company pension, life assurance, and recognition schemes Flexible hybrid working model, with ongoing training and career development A vibrant culture with regular team socials and events Principal SecOps Engineer - Hybrid - Nottinghamshire - Up to £75000 + Bonus More ❯

Position : Principal Salesforce Engineer Location : Leeds, Bristol, Bournemouth, Tunbridge Wells, Middlesbrough (hybrid/flexible) Salary : £100,000 to £110,000 (DOE) + bonus and excellent benefits Summary A leading financial services organisation is looking for a Principal Salesforce Engineer to take a pivotal role in its digital transformation. You will lead engineering teams to design and … deliver enterprise-scale Salesforce solutions, integrated with .NET and Azure platforms, supporting business-critical systems and improving customer experience. Principal Salesforce Engineer Responsibilities • Lead Salesforce-focused product engineering teams, driving delivery of transformation projects • Provide technical direction, hands-on code reviews, and enforce engineering best practice • Collaborate with Product Owners, Scrum Masters, and business stakeholders to ensure outcomes … and deliver engineering strategy as part of the leadership team • Evaluate emerging Salesforce technologies and wider solutions for enterprise adoption • Ensure systems meet performance, scalability, security, and regulatory requirements Principal Salesforce Engineer Requirements • Proven experience leading Salesforce engineering teams within large enterprises • Strong expertise across the Salesforce ecosystem, including integration with multiple platforms • Experience with Azure, .NET services More ❯

Principal Sales Engineer Location: Remote (UK-based) – with travel to customer sites Salary: circa £140k +20% bonus + car allowance + extensive benefits package (DV cleared) Clearance Requirement: DV (Developed Vetting) or SC if willing to go through DV process Our client is at the forefront of digital transformation, supporting the world’s most essential organisations through their … visibility and insight at an unparalleled scale they help clients solve problems faster, secure what matters, and drive continuous innovation across their digital ecosystems. We are now seeking a Principal Sales Engineer to support the growth of UK public sector accounts. This is a remote, client-facing role for a highly technical and experienced presales professional with a … with tools like Wireshark, Zeek, or similar platforms. Awareness of cybersecurity frameworks and best practices (e.g., NIST, ISO 27001) and how they apply to network assurance. Role & Responsibilities As Principal Sales Engineer, you will play a vital role in driving revenue by delivering technical presales support, demonstrating product value, and shaping best-fit solutions. Reporting to the Regional More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s More ❯

Principal Systems Engineer 12-month contract Based in Edinburgh Offering 70ph Inside IR35 Do you have experience with MATLAB? Do you have experience across the V Model Lifecycle? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Principal Systems … Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Work with large datasets from rig and flight … systems Understanding of radar or complex sensor systems If this all sounds like something you will be interested in then simply apply and we can discuss the opportunity further! Principal Systems Engineer 12-month contract Based in Edinburgh Offering 70ph Inside IR35 Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT More ❯

Job Title: Principal Platform Engineer Location: Remote (UK-based) Salary: c.£73,000 Why Apply? Play a pivotal role in delivering cutting-edge cloud engineering and software development practices across a high-impact public sector organisation. As a Principal Platform Engineer, you'll shape cloud strategy, lead modern engineering approaches, and mentor others, all within a … values-driven environment. This is a fantastic opportunity to drive meaningful change, influence architectural decisions, and work with emerging technologies like AI, CI/CD, and Infrastructure as Code. Principal Platform Engineer Responsibilities Lead the design, build, testing and support of secure, scalable Azure-based cloud services. Define and promote best practices in automation, CI/CD, and … technologies, including AI and advanced analytics. Oversee engineering governance and technical standards across transformation and operational projects. Mentor engineers and ensure alignment with technical standards, security, and delivery objectives. Principal Platform Engineer Requirements Extensive experience in cloud engineering and modern software development. Advanced knowledge of Azure services across IaaS, PaaS, and SaaS models. Proficiency in Infrastructure as Code More ❯

Job Title: Principal Platform Engineer Location: Remote (UK-based) Salary: c.£73,000 Why Apply? Play a pivotal role in delivering cutting-edge cloud engineering and software development practices across a high-impact public sector organisation. As a Principal Platform Engineer, you'll shape cloud strategy, lead modern engineering approaches, and mentor others, all within a … values-driven environment. This is a fantastic opportunity to drive meaningful change, influence architectural decisions, and work with emerging technologies like AI, CI/CD, and Infrastructure as Code. Principal Platform Engineer Responsibilities Lead the design, build, testing and support of secure, scalable Azure-based cloud services. Define and promote best practices in automation, CI/CD, and … technologies, including AI and advanced analytics. Oversee engineering governance and technical standards across transformation and operational projects. Mentor engineers and ensure alignment with technical standards, security, and delivery objectives. Principal Platform Engineer Requirements Extensive experience in cloud engineering and modern software development. Advanced knowledge of Azure services across IaaS, PaaS, and SaaS models. Proficiency in Infrastructure as Code More ❯

Job Title: Principal Engineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-In-Furness (Hybrid - 2 days on site per fortnight) - We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: From £50,000+ depending on experience What you'll be doing: Generate and assure consistency within … lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The SSNA CCI Governance Team: As a Principal Engineer - Systems Engineering you will be working as part of the Centralised C&I Governance Team, responsible for developing the process, procedure and providing assurance for the next More ❯

Principal Software Engineer – National Security - SC Clearance Role: Principal Software Engineer Location: Cheltenham - Hybrid Work Clearance: SC Cleared/Eligible for SC Salary: £75,000 - £95,000 About the Role Searchability NS&D is recruiting a Principal Software Engineers to join an Agile delivery team supporting a range of complex and high-impact Central Government … professional development Social: Regular team get-togethers, summer parties, and annual company away-days Onsite Allowances: Expenses provided for lunch and refreshments Apply If you’re an ambitious Software Engineer looking to apply your skills to impactful, mission-focused projects, we’d love to hear from you. #Java #AWS #React #JavaScript #TypeScript #Kubernetes #Docker #SC #SCCleared #FullStack More ❯

Principal Software Engineer – National Security - SC Clearance Role: Principal Software Engineer Location: Cheltenham - Hybrid Work Clearance: SC Cleared/Eligible for SC Salary: £75,000 - £95,000 About the Role Searchability NS&D is recruiting a Principal Software Engineers to join an Agile delivery team supporting a range of complex and high-impact Central Government … professional development Social: Regular team get-togethers, summer parties, and annual company away-days Onsite Allowances: Expenses provided for lunch and refreshments Apply If you’re an ambitious Software Engineer looking to apply your skills to impactful, mission-focused projects, we’d love to hear from you. #Java #AWS #React #JavaScript #TypeScript #Kubernetes #Docker #SC #SCCleared #FullStack More ❯