City of London, London, United Kingdom Hybrid / WFH Options
Ozone Talent
PrincipalEngineer London Hybrid £95,000-£110,000 + 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 PrincipalEngineer's with deep expertise in Kotlin or JVM to help scale and enhance 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 PrincipalEngineer: 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 value that aligns to business objectives Mentor and coach more junior members of the team Continuously More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Ozone Talent
PrincipalEngineer London Hybrid £95,000-£110,000 + 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 PrincipalEngineer's with deep expertise in Kotlin or JVM to help scale and enhance 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 PrincipalEngineer: 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 value that aligns to business objectives Mentor and coach more junior members of the team Continuously More ❯
City of London, London, United Kingdom Hybrid / WFH Options
numi
PrincipalEngineer – Build the Future of SME Finance 💻 Remote-first (UK-based) | London meetups | 🏗️ Hands-on Architecture | Team Leadership | Fintech for Good We’re working with a mission-driven fintech that’s solving a massive problem: small businesses — the backbone of the UK economy — are still underserved by … using real-time financial data. Already trusted by 80+ major banks and lenders, they're scaling fast — and now they’re looking for a PrincipalEngineer to shape the next stage of their platform and lead from the front. 💥 Why This Role is Great You’ll architect the … Terraform) Practices: TDD, CI/CD, clean architecture, pragmatic testing Bonus Points: Data engineering or machine learning experience 👀 What They’re Looking For A PrincipalEngineer, Tech Lead, or Software Architect with at least 2 years at this level You’ve built and scaled SaaS platforms — ideally in More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
numi
PrincipalEngineer – Build the Future of SME Finance 💻 Remote-first (UK-based) | London meetups | 🏗️ Hands-on Architecture | Team Leadership | Fintech for Good We’re working with a mission-driven fintech that’s solving a massive problem: small businesses — the backbone of the UK economy — are still underserved by … using real-time financial data. Already trusted by 80+ major banks and lenders, they're scaling fast — and now they’re looking for a PrincipalEngineer to shape the next stage of their platform and lead from the front. 💥 Why This Role is Great You’ll architect the … Terraform) Practices: TDD, CI/CD, clean architecture, pragmatic testing Bonus Points: Data engineering or machine learning experience 👀 What They’re Looking For A PrincipalEngineer, Tech Lead, or Software Architect with at least 2 years at this level You’ve built and scaled SaaS platforms — ideally in More ❯
City of London, Greater London, UK Hybrid / WFH Options
Ozone Talent
PrincipalEngineer London Hybrid £95,000-£110,000 + 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 PrincipalEngineer's with deep expertise in Kotlin or JVM to help scale and enhance 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 PrincipalEngineer: 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 value that aligns to business objectives Mentor and coach more junior members of the team Continuously More ❯
City of London, Greater London, UK Hybrid / WFH Options
numi
PrincipalEngineer – Build the Future of SME Finance Remote-first (UK-based) | London meetups | ️ Hands-on Architecture | Team Leadership | Fintech for Good We’re working with a mission-driven fintech that’s solving a massive problem: small businesses — the backbone of the UK economy — are still underserved by … using real-time financial data. Already trusted by 80+ major banks and lenders, they're scaling fast — and now they’re looking for a PrincipalEngineer to shape the next stage of their platform and lead from the front. Why This Role is Great You’ll architect the … Terraform) Practices: TDD, CI/CD, clean architecture, pragmatic testing Bonus Points: Data engineering or machine learning experience What They’re Looking For A PrincipalEngineer, Tech Lead, or Software Architect with at least 2 years at this level You’ve built and scaled SaaS platforms — ideally in More ❯
This leading developer of wireless communications technologies is urgently seeking a PrincipalEngineer 5G/6G RAN to be based at their R+D Centre in London. The PrincipalEngineer 5G/6G RAN will be involved in research and development of emerging 5G and 6G systems … relevant to 3GPP RAN wireless standards. Along with this the PrincipalEngineer 5G/6G RAN will be pivotal in driving next generation innovation and development addressing the challenges of future wireless systems development. The PrincipalEngineer 5G/6G RAN will also contribute to the More ❯
london (city of london), south east england, united kingdom
IC Resources
This leading developer of wireless communications technologies is urgently seeking a PrincipalEngineer 5G/6G RAN to be based at their R+D Centre in London. The PrincipalEngineer 5G/6G RAN will be involved in research and development of emerging 5G and 6G systems … relevant to 3GPP RAN wireless standards. Along with this the PrincipalEngineer 5G/6G RAN will be pivotal in driving next generation innovation and development addressing the challenges of future wireless systems development. The PrincipalEngineer 5G/6G RAN will also contribute to the More ❯
This leading developer of wireless communications technologies is urgently seeking a PrincipalEngineer 5G/6G RAN to be based at their R+D Centre in London. The PrincipalEngineer 5G/6G RAN will be involved in research and development of emerging 5G and 6G systems … relevant to 3GPP RAN wireless standards. Along with this the PrincipalEngineer 5G/6G RAN will be pivotal in driving next generation innovation and development addressing the challenges of future wireless systems development. The PrincipalEngineer 5G/6G RAN will also contribute to the More ❯
City of London, London, United Kingdom Hybrid / WFH Options
La Fosse
PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Principal Engineers with a strong background in full-stack JavaScript development to join their growing team. As a PrincipalEngineer … two-stage virtual interview If this sounds like the next step in your engineering journey, we'd love to hear from you. Apply now! PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
La Fosse
PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Principal Engineers with a strong background in full-stack JavaScript development to join their growing team. As a PrincipalEngineer … two-stage virtual interview If this sounds like the next step in your engineering journey, we'd love to hear from you. Apply now! PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k More ❯
Principal Software Engineer (TypeScript) Salary: £120,000 - £140,000 plus equity Location: 3 days p/week in London PrincipalEngineer - would you like the opportunity to work for a start-up who recently raised series A funding? You will be joining a technology team who … a passion for innovation, collaboration, and providing the best service to their customers as well as embracing new ideas, technologies and approaches. As a PrincipalEngineer, you will be joining the organisation at one of the most exciting times. You will be working alongside a team of experienced … fast-paced start-up. Focus on building highly reliable and well architected products. Computer Science degree would be a bonus. If you're a PrincipalEngineer, looking to work for one of the fastest growing start-ups, please apply. More ❯
City of London, Greater London, UK Hybrid / WFH Options
La Fosse
PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k La Fosse has partnered with a global leader in customer loyalty and travel services. We're looking for Principal Engineers with a strong background in full-stack JavaScript development to join their growing team. As a PrincipalEngineer … two-stage virtual interview If this sounds like the next step in your engineering journey, we'd love to hear from you. Apply now! PrincipalEngineer | Hybrid | React | Node | AWS | TypeScript | £120k More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Xcede
Role: PrincipalEngineer 🥞 Stack: Java, Kotlin, AWS 📍 Location: London, Hybrid (2-4x Month) 💰 Salary: Up to £120k-£140k Xcede are partnering with a FinTech Scale up who are building out a brand new SaaS platform integrating directly with major banking intuitions. 🚀 What will you do as a … PrincipalEngineer? You will be leading architectural discussions and acting as the technical authority within the engineering function Collaborate with Product Managers and Engineers to optimise solutions Engage with clients to both gather requirements and understand problems that need to be solved Setting best practices and elevating capabilities … Typescript and AWS) Background building and designing large scale engineering platforms Comfortable working with both technical and non-technical stakeholders 3+ years as a Principal/Staff Engineer or Architect Dealt with clients in a commercial environment (consultancy, saas etc...) Preference for having worked within SaaS or FinTech More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Xcede
Role: PrincipalEngineer 🥞 Stack: Java, Kotlin, AWS 📍 Location: London, Hybrid (2-4x Month) 💰 Salary: Up to £120k-£140k Xcede are partnering with a FinTech Scale up who are building out a brand new SaaS platform integrating directly with major banking intuitions. 🚀 What will you do as a … PrincipalEngineer? You will be leading architectural discussions and acting as the technical authority within the engineering function Collaborate with Product Managers and Engineers to optimise solutions Engage with clients to both gather requirements and understand problems that need to be solved Setting best practices and elevating capabilities … Typescript and AWS) Background building and designing large scale engineering platforms Comfortable working with both technical and non-technical stakeholders 3+ years as a Principal/Staff Engineer or Architect Dealt with clients in a commercial environment (consultancy, saas etc...) Preference for having worked within SaaS or FinTech More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Burns Sheehan
Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS) 💰 Up to £135,000 + bonus (15-22%) + annual equity 🖥️ Python, Distributed Systems, High-Scale Architecture 📍 London, hybrid working (2 days/week) 🤝 Leading business lending platform I'm partnered with one of the UK’s most successful … new product line which has become the company’s highest-growth area, with its own dedicated leadership and roadmap. They’re now hiring a PrincipalEngineer to become the technical lead across two core engineering teams working in the card and credit space. This is a critical hands … their London office (no fixed days) Be part of a high-ownership role with real scope to shape the success of a growing product Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Burns Sheehan
Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS) 💰 Up to £135,000 + bonus (15-22%) + annual equity 🖥️ Python, Distributed Systems, High-Scale Architecture 📍 London, hybrid working (2 days/week) 🤝 Leading business lending platform I'm partnered with one of the UK’s most successful … new product line which has become the company’s highest-growth area, with its own dedicated leadership and roadmap. They’re now hiring a PrincipalEngineer to become the technical lead across two core engineering teams working in the card and credit space. This is a critical hands … their London office (no fixed days) Be part of a high-ownership role with real scope to shape the success of a growing product Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS More ❯
City of London, Greater London, UK Hybrid / WFH Options
Xcede
Role: PrincipalEngineer Stack: Java, Kotlin, AWS Location: London, Hybrid (2-4x Month) Salary: Up to £120k-£140k Xcede are partnering with a FinTech Scale up who are building out a brand new SaaS platform integrating directly with major banking intuitions. What will you do as a … PrincipalEngineer? You will be leading architectural discussions and acting as the technical authority within the engineering function Collaborate with Product Managers and Engineers to optimise solutions Engage with clients to both gather requirements and understand problems that need to be solved Setting best practices and elevating capabilities … Typescript and AWS) Background building and designing large scale engineering platforms Comfortable working with both technical and non-technical stakeholders 3+ years as a Principal/Staff Engineer or Architect Dealt with clients in a commercial environment (consultancy, saas etc...) Preference for having worked within SaaS or FinTech More ❯
City of London, Greater London, UK Hybrid / WFH Options
Burns Sheehan
Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS) Up to £135,000 + bonus (15-22%) + annual equity ️ Python, Distributed Systems, High-Scale Architecture London, hybrid working (2 days/week) Leading business lending platform I'm partnered with one of the UK’s most successful … new product line which has become the company’s highest-growth area, with its own dedicated leadership and roadmap. They’re now hiring a PrincipalEngineer to become the technical lead across two core engineering teams working in the card and credit space. This is a critical hands … their London office (no fixed days) Be part of a high-ownership role with real scope to shape the success of a growing product Principal Software Engineer – Cards & Credit (Python, Java, Clojure, AWS More ❯
Principal Software Engineer - Java, Leadership - London (Hybrid) One of my consulting clients in London is looking for a Principal Software Engineer to lead a development team working on an exciting project. Key Skills: Java Development Springboot Microservices REST APIs Cloud (AWS Ideally or Azure) Leadership experience More ❯
london (city of london), south east england, united kingdom
Nicoll Curtin
Principal Software Engineer - Java, Leadership - London (Hybrid) One of my consulting clients in London is looking for a Principal Software Engineer to lead a development team working on an exciting project. Key Skills: Java Development Springboot Microservices REST APIs Cloud (AWS Ideally or Azure) Leadership experience More ❯
Principal Software Engineer London (Bank – Three days a week in the office) £90k-£100k We’ve partnered with a global insurance company as they continue to grow their Engineering team – they’re seeking a Principal Software Engineer to lead & drive innovation & quality across the software development More ❯
london (city of london), south east england, united kingdom
SoCode Recruitment
Principal Software Engineer London (Bank – Three days a week in the office) £90k-£100k We’ve partnered with a global insurance company as they continue to grow their Engineering team – they’re seeking a Principal Software Engineer to lead & drive innovation & quality across the software development More ❯
Principal Data Engineer Hybrid - London – weekly office visit We’re working with a cutting-edge SaaS business that's revolutionising how organisations integrate systems, manage data, and deliver insights. This high-growth, product-led company offers a game-changing, AI-powered platform that’s driving digital transformation for … multiple awards for their approach to high achieving professionalism balanced with a great work-life balance. About the Role We’re looking for a Principal Data Engineer to join a highly skilled team focused on delivering next-gen, data-driven solutions across complex enterprise environments. We’re looking … to a Principal Technical Contributor who can also work in a strategic role. At it’s core, this role is about improving the company’s Product internally, while also listening to and tailoring for clients. You’ll act as a platform superuser and thought leader, responsible for designing and More ❯
london (city of london), south east england, united kingdom
Xcede
Principal Data Engineer Hybrid - London – weekly office visit We’re working with a cutting-edge SaaS business that's revolutionising how organisations integrate systems, manage data, and deliver insights. This high-growth, product-led company offers a game-changing, AI-powered platform that’s driving digital transformation for … multiple awards for their approach to high achieving professionalism balanced with a great work-life balance. About the Role We’re looking for a Principal Data Engineer to join a highly skilled team focused on delivering next-gen, data-driven solutions across complex enterprise environments. We’re looking … to a Principal Technical Contributor who can also work in a strategic role. At it’s core, this role is about improving the company’s Product internally, while also listening to and tailoring for clients. You’ll act as a platform superuser and thought leader, responsible for designing and More ❯
