151 to 175 of 370 Permanent Principal Engineer Jobs

JOB TITLE: PRINCIPAL TEST ENGINEER LOCATION: TEWKSBURY, MA WAGE RANGE : $90.00-95.00 PER HOUR JOB NUMBER: REQUIRED EXPERIENCE: Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) Minimum of eight (8) years of relevant engineering experience. Experience in an engineering design and development environment with at least four (4) years of direct experience with Test … required, as only U.S. citizens are eligible for a security clearance Ability to obtain Interim Secret U.S. government issued security clearance is required prior to start date JOB DESCRIPTION Principal Test Equipment Design Engineer to join the Sensor Test Solutions (STS) Department. This is an excellent position for engineers with a background in electrical design and software programming More ❯

Role: Principal Software Engineer Location: Berskhire (Onsite) Industry: Intelligence, Defence Salary: Competitive + Allowance + Bonus + Benefits Join a cutting edge engineering team developing high-performance embedded and application software for complex systems in the Intelligence/Cyber world. As a Lead Software Engineer, you ll provide technical leadership across the full software lifecycle from requirements More ❯

Role: Principal Software Engineer Location: Berskhire (Onsite) Industry: Intelligence, Defence Salary: Competitive + Allowance + Bonus + Benefits Join a cutting edge engineering team developing high-performance embedded and application software for complex systems in the Intelligence/Cyber world. As a Lead Software Engineer, you’ll provide technical leadership across the full software lifecycle from requirements 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 ❯

Principal Platform Engineer | Fintech | London | Up to £200k + Equity | London (Min 4 days per week in office) Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger"—set to replace legacy infrastructure at Tier 1 banks. We … re looking for a Principal Platform Engineer to drive the infrastructure behind mission-critical systems: think active-active, five-nines uptime, and real-time observability at global scale. What You'll Do: Own platform architecture for our next-gen ledger infrastructure Scale multi-region Kubernetes environments across cloud & on-prem Harden distributed systems (Kafka, Redis, CockroachDB) for global More ❯

Principal Platform Engineer | Fintech | London | Up to £200k + Equity | London (Min 4 days per week in office) Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger"—set to replace legacy infrastructure at Tier 1 banks. We … re looking for a Principal Platform Engineer to drive the infrastructure behind mission-critical systems: think active-active, five-nines uptime, and real-time observability at global scale. What You'll Do: Own platform architecture for our next-gen ledger infrastructure Scale multi-region Kubernetes environments across cloud & on-prem Harden distributed systems (Kafka, Redis, CockroachDB) for global More ❯

We are seeking an enthusiastic Senior/Principal Engineer to support our clients regional Development Team in Cardiff, focusing on civil engineering for development infrastructure. You will work within a team to lead and produce designs and drawings for construction projects and deliver technical reports for masterplanning and in support of planning applications. You can expect to be More ❯

and your impact. Your Career Elevate your career by joining MHR, the pioneering SaaS company leading the charge in the UK. We're on the lookout for a visionary Principal Web Engineer to join the PeopleFirst product team. Your Team You’ll be part of our dynamic People First engineering team, where you'll work with the most … cutting-edge technologies, collaborate with experts, and contribute to the rapid growth of our PeopleFirst SaaS system. Your Impact As a Principal Web Engineer at MHR, you're not just writing code – you're architecting the future of software solutions. You'll drive excellence in every aspect, from user interface design to maintaining a high-quality code base More ❯

and your impact. Your Career Elevate your career by joining MHR, the pioneering SaaS company leading the charge in the UK. We're on the lookout for a visionary Principal Web Engineer to join the PeopleFirst product team. Your Team You’ll be part of our dynamic People First engineering team, where you'll work with the most … cutting-edge technologies, collaborate with experts, and contribute to the rapid growth of our PeopleFirst SaaS system. Your Impact As a Principal Web Engineer at MHR, you're not just writing code – you're architecting the future of software solutions. You'll drive excellence in every aspect, from user interface design to maintaining a high-quality code base 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 ❯

experience of writing code that will work on K8 (not just running services) With more demand for their product than they can currently meet, we're looking for a Principal Engineer to grow their engineering team, with strong experience in: Go Kubernetes SQL (specifically PostgreSQL or other relational DB) In this role, you'll be instrumental in architecting 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 ❯

We are seeking an experienced Principal Software Engineer with a strong background in backend and cloud-based development, who has also taken on technical leadership responsibilities. This role involves leading the design and development of scalable systems, mentoring engineers, and ensuring high standards of architecture and code quality across projects. Responsibilities: Design, develop, and maintain full stack applications More ❯

We are seeking an experienced Principal Software Engineer with a strong background in backend and cloud-based development, who has also taken on technical leadership responsibilities. This role involves leading the design and development of scalable systems, mentoring engineers, and ensuring high standards of architecture and code quality across projects. Responsibilities: Design, develop, and maintain full stack applications More ❯

We are working with a household brand to find a Principal Engineer with a background in enterprise WordPress. This position offers the chance to shape technical strategy and drive innovation across their WP centre of excellence! What you'll do: Lead technical conversations with engineers, architects, and stakeholders. Own technical strategy alongside the Head of Engineering. Mentor and More ❯

and your impact. Your Career Elevate your career by joining MHR, the pioneering SaaS company leading the charge in the UK. We're on the lookout for a visionary Principal Java Software Engineer to join the PeopleFirst engineering team at MHR. Your Team You’ll be part of our dynamic People First engineering team where you'll work … with the most cutting-edge technologies, collaborate with experts, and contribute to the rapid growth of our People First SaaS system. Your Impact As a Principal Java Software Engineer at MHR you're not just writing code. You're architecting the future of software solutions. You'll drive excellence in every aspect, from design through to maintaining a More ❯

and your impact. Your Career Elevate your career by joining MHR, the pioneering SaaS company leading the charge in the UK. We're on the lookout for a visionary Principal Java Software Engineer to join the PeopleFirst engineering team at MHR. Your Team You’ll be part of our dynamic People First engineering team where you'll work … with the most cutting-edge technologies, collaborate with experts, and contribute to the rapid growth of our People First SaaS system. Your Impact As a Principal Java Software Engineer at MHR you're not just writing code. You're architecting the future of software solutions. You'll drive excellence in every aspect, from design through to maintaining a More ❯

Title: Principal Software Engineer Location: Cambridge Work Setup: Onsite We’re partnering with a rapidly growing Cambridgeshire-based company specializing in the development and supply of radio terminals, accessories, and applications for mission-critical and business-critical communications. Due to continued expansion, they’re looking for a Principal Software Engineer to join their growing team. The 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 ❯

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 Title: Principal DevOps Engineer Location: Remote (Must be UK based) Type: Permanent Salary: Up to £100,000 Looking for experienced DevOps Engineers to join our clients growing engineering organization, now over 1,000 people. These are senior, high-impact roles for leaders who thrive on enabling teams, driving automation, and shaping DevOps culture across large-scale environments. More ❯

We are seeking an enthusiastic Senior/Principal Engineer to support our clients regional Development Team in Cardiff, focusing on civil engineering for development infrastructure. You will work within a team to lead and produce designs and drawings for construction projects and deliver technical reports for masterplanning and in support of planning applications click apply for full job More ❯

s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon is seeking a well-qualified Senior Principal System Security Engineer (SSE) – P5 to join the dynamic System Security Engineering team. We need individuals who can apply their technical knowledge and leadership experience to system security 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 ❯