1 to 25 of 295 Principal Engineer Jobs in the UK

Principal Engineer - Series A Scale Up - Up to £270,000 I'm currently looking for a Principal Engineer to join a high-growth, YC-backed AI startup based in London. It's a hands-on IC role focused primarily on scalable backend systems and genuinely … fixing hard systems problems that unlocked scale – Have real hands-on Python experience If this sounds like a fit, please get in touch. Principal Engineer - Series A Scale ...

Principal Engineer | TypeScript, Node, Azure | Global Environmental Data Non-Profit Powering Investment Decisions Salary: £75,000 £100,000 Hybrid (2 days a month London office) Im working with a genuinely purpose-led organisation that sits right at the intersection of data, climate, and global finance. Theyve built … with that comes the usual integration challenges. Systems that work, but dont always talk to each other cleanly. Youll come in as their first Principal Engineer, reporting into the CTO, with a remit to bring clarity and structure to how services integrate, while staying hands-on enough ...

Principal Systems Engineer - Surrey (Hybrid) - up to £80,000 + Bonus + Benefits - REF 2011 I am currently recruiting for a Principal Systems Engineer to work for a leading engineering organisation based in Surrey, but on a hybrid basis. Salary up to £80,000 + Bonus … systems. To support the business with the current workload and in line with their expansion plans they have the need to appoint a Principal Systems Engineer on a permanent basis. In this role as a Principal Systems Engineer, you will be responsible for supporting the Business ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

Description: Principal Engineer Rate Inside IR35 Remote, with occasional travel to London, Manchester, Newcastle Role Purpose The Principal Engineer will provide senior technical leadership for a complex mainframe modernisation programme characterised by a large case load, high throughput, and significant scalability and resilience requirements. The role … assurance expectations. As the programme scales, the role may extend to multiteam and multivendor technical oversight. Essential Skills and Experience Demonstrable experience as a Principal Engineer on largescale modernisation or platform programmes. Strong background in cloudnative engineering on AWS, including Kubernetesbased platforms. Deep handson experience with Java, Spring ...

.Principal/Consulting Engineer page is loaded## Principal/Consulting Engineerlocations: Oxford: Londontime type: Full timeposted on: Posted Todayjob requisition id: R112322**Principal Engineer****About the role:**As a Principal Engineer, you will help shape the technical direction of platforms used by the global … learning• Support teams in using AI-assisted development and production AI patterns where they add real value**Requirements:**• Experience working at senior, staff, or principal engineer level across multiple teams or domains• A track record of influencing technical decisions and supporting change at scale• Experience designing and evolving ...

Principal Software Engineer (Go/Systems) 🚀 Series B Scale Up 🔬 Life Sciences Salary : £170,000 plus package Location : Angel (3 days per week in office) Requirements : Backend engineering specialist, with expertise in Golang, Python, Rust, Kubernetes The Mission: Orchestrating Physical Reality 🤖 I am working with a Series … raised) disrupting the Life Sciences sector by building a cloud-to-hardware "Operating System" that automates human health. They are looking to hire a Principal Software Engineer who will be the technical heavyweight that 5–6 Staff Engineers rally behind. ⚡ The Technical Core The ecosystem is built ...

## .Principal/Consulting Engineer page is loaded## Principal/Consulting Engineerlocations: Oxford: Londontime type: Full timeposted on: Posted Todayjob requisition id: R112322**Principal Engineer****About the role:**As a Principal Engineer, you will help shape the technical direction of platforms used … learning• Support teams in using AI-assisted development and production AI patterns where they add real value**Requirements:**• Experience working at senior, staff, or principal engineer level across multiple teams or domains• A track record of influencing technical decisions and supporting change at scale• Experience designing and evolving ...

Principal Engineer 📍 London (Hybrid – 2 days in office) We’re partnering with a leading UK consumer platform used by millions every day, currently looking for a Principal Engineer to shape the future of their search and discovery capabilities. This is a high-impact, cross-team role ...

Principal .NET Engineer (Azure/Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal .NET … Engineer to shape the future of enterprise technology used by millions of customers. This role will focus on engineering leadership, modern architecture, cloud-native delivery and driving best practice across multiple teams within a high-scale digital environment. Responsibilities for the Principal .NET Engineer: Define and evolve ...

Principal .NET Engineer (Azure/Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal .NET … Engineer to shape the future of enterprise technology used by millions of customers. This role will focus on engineering leadership, modern architecture, cloud-native delivery and driving best practice across multiple teams within a high-scale digital environment. Responsibilities for the Principal .NET Engineer: Define and evolve ...

Principal Software Engineer – Scientific Instrumentation Location: High Wycombe, Buckinghamshire Work pattern: Predominantly site-based, with some hybrid flexibility for the right individual Sector: Scientific Instrumentation/Analytical Technology/R&D Engineering Build the software behind advanced scientific instruments We are looking for a Principal Software Engineer … direction of software development for next-generation scientific instrumentation. This is not a generic enterprise software role. We are specifically looking for a senior engineer with deep experience in software that interacts with real-world hardware , ideally within scientific instruments, complex electromechanical systems, industrial automation, sensing, imaging, or other ...

Principal Java Engineer (AWS/Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal Java … Engineer to shape the future of large-scale digital platforms used by millions of customers. This role will focus on driving engineering excellence, defining technical standards and leading the design of scalable, high-availability systems across a modern cloud-native environment. Responsibilities for the Principal Java Engineer ...

Principal Java Engineer (AWS/Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal Java … Engineer to shape the future of large-scale digital platforms used by millions of customers. This role will focus on driving engineering excellence, defining technical standards and leading the design of scalable, high-availability systems across a modern cloud-native environment. Responsibilities for the Principal Java Engineer ...

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 ...