1 to 25 of 220 Permanent Principal Engineer Jobs in the UK excluding London

Principal Engineer London Hybrid £100,000-£170,000 + bonus + benefits We’re working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer … their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver … and bonus Hybrid office/remote-working practices Private Health Insurance Pension Scheme Life Assurance Scheme with death in service benefit of 4x salary This is a career defining Principal Engineer position with the potential to have a massive impact on the technology strategy of a business that is directly shaping the future of intelligent digital infrastructure. **Unfortunately More ❯

Principal Engineer London Hybrid £100,000-£170,000 + bonus + benefits We’re working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer … their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver … and bonus Hybrid office/remote-working practices Private Health Insurance Pension Scheme Life Assurance Scheme with death in service benefit of 4x salary This is a career defining Principal Engineer position with the potential to have a massive impact on the technology strategy of a business that is directly shaping the future of intelligent digital infrastructure. **Unfortunately More ❯

Principal Engineer London Hybrid £100,000-£170,000 + bonus + benefits We’re working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions. We are looking for Principal Engineer … their high performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment. Responsibilities as a Principal Engineer: Contribute to the businesses technology strategy and architecture Contribute to the backend Kotlin infrastructure Ship resilient and well tested production code Collaborate with different teams to deliver … and bonus Hybrid office/remote-working practices Private Health Insurance Pension Scheme Life Assurance Scheme with death in service benefit of 4x salary This is a career defining Principal Engineer position with the potential to have a massive impact on the technology strategy of a business that is directly shaping the future of intelligent digital infrastructure. **Unfortunately More ❯

Principal Engineer role for one of the most exciting tech companies in the North West has come live. 🚀🚀 COMPANY: Recognised in the Times100 fastest growing companies, this challenger technology company continues to make a difference to its 5m customers, whilst providing real time data through its unique AI platform to its 600 clients/brands. Intro..... A key … hire within the engineering team, we're looking for a Principal Engineer to work closely with the Head of Engineering, to shape the technical direction across multiple product teams, ensuring that what we build is reliable, scalable, and impactful. You’ll be the bridge between strategic thinking and pragmatic delivery, helping the engineering teams design systems that move … and continuous improvement. Partner with Product and Architecture leads to align technology with strategic goals. What do you need to be successful? We are looking for a high level Principal Engineer who has a passion for building scaleable products and want to join an energetic and passionate team on a mission to change the Financial Services landscape here More ❯

Principal Engineer role for one of the most exciting tech companies in the North West has come live. 🚀🚀 COMPANY: Recognised in the Times100 fastest growing companies, this challenger technology company continues to make a difference to its 5m customers, whilst providing real time data through its unique AI platform to its 600 clients/brands. Intro..... A key … hire within the engineering team, we're looking for a Principal Engineer to work closely with the Head of Engineering, to shape the technical direction across multiple product teams, ensuring that what we build is reliable, scalable, and impactful. You’ll be the bridge between strategic thinking and pragmatic delivery, helping the engineering teams design systems that move … and continuous improvement. Partner with Product and Architecture leads to align technology with strategic goals. What do you need to be successful? We are looking for a high level Principal Engineer who has a passion for building scaleable products and want to join an energetic and passionate team on a mission to change the Financial Services landscape here More ❯

Principal Engineer role for one of the most exciting tech companies in the North West has come live. 🚀🚀 COMPANY: Recognised in the Times100 fastest growing companies, this challenger technology company continues to make a difference to its 5m customers, whilst providing real time data through its unique AI platform to its 600 clients/brands. Intro..... A key … hire within the engineering team, we're looking for a Principal Engineer to work closely with the Head of Engineering, to shape the technical direction across multiple product teams, ensuring that what we build is reliable, scalable, and impactful. You’ll be the bridge between strategic thinking and pragmatic delivery, helping the engineering teams design systems that move … and continuous improvement. Partner with Product and Architecture leads to align technology with strategic goals. What do you need to be successful? We are looking for a high level Principal Engineer who has a passion for building scaleable products and want to join an energetic and passionate team on a mission to change the Financial Services landscape here More ❯

Principal Engineer Azure & IaC (Terraform, Pulumi) 90,000 95,000 Base Salary. Excellent Company Benefits (including paid technical training). Hybrid or Fully Remote Option Offices in England, Scotland & USA. On-Call Rota 1 week in 3 months. Paid travel to HQ for Product & Engineering meetups (1-2 times per month). Areti are delighted to be partnering … with one of the UKs fastest-growing SaaS businesses in the search for a Principal Engineer with Infrastructure-as-Code experience (Terraform, Pulumi) . This award-winning organisation has achieved over 40% growth in 2025 , expanding rapidly across the UK and North America . With a major multi-million-pound technology investment planned for the year ahead, this … is a rare opportunity to play a pivotal leadership role in shaping a modern, greenfield-style environment that underpins their continued success. The Role As a Principal Engineer , youll take a hands-on and strategic role within the engineering organisation, driving reliability, scalability, and performance across mission-critical systems. Youll guide and mentor platform, SRE, and DevOps teams More ❯

Principal Engineer Location: Manchester (1 day per month) Type: Permanent Salary: Up to £110,000 About the Role We’re working with an AI start-up that’s building innovative products, combining technology, automation, and intelligent systems to simplify complex processes. They’re looking for a Principal Engineer with strong Python skills and experience delivering modern More ❯

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 high-performing 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 is a hybrid working role, with a requirement to travel to our customer sites on occasion. … 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 - 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 high-performing 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 is a hybrid working role, with a requirement to travel to our customer sites on occasion. … 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 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 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 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 ❯

Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯

Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯

Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics 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 ❯