14 of 14 Permanent Principal Engineer Jobs in the City of London

Principal Data Engineer £110,000 + 20% bonus Hybrid | London We're working with a global branded entertainment business, operating across multiple international markets, to find a Principal Data Engineer who will shape the future of their data estate. This is a genuine player-coach role … translating complex trade-offs into plain language, and holding the line on what gets built right versus what gets fixed fast. Responsibilities as a Principal Data Engineer: Define the directional architecture for the new data estate, including Lakehouse, Medallion and Eventing patterns on Databricks and Azure Lead discovery ...

elevating expectations around Market Abuse monitoring and robust Record Keeping controls, this is a critical and high-profile hire. We are seeking an exceptional Principal Engineer to play a central technical leadership role within their Surveillance Technology team. This is an opportunity to influence strategy, shape engineering standards … critical technology landscape. The Opportunity Communication Surveillance and mobile capture capabilities now sit at the forefront of internal and external regulatory enquiries. As the Principal Engineer, you will act as the technical authority for a major Communications Surveillance Technology programmeleading architectural decisions, engineering best practice, and the design ...

Principal Software Engineer About the Company: A publicly-traded fintech (NYSE-listed) operating one of the world's most-visited platforms for finance news and data, serving millions of users globally. The engineering team is responsible for infrastructure that handles high-volume real-time market data and powers … decisions that directly impact system performance and user experience. Requirements: 8+ years backend development experience with demonstrated technical leadership as Lead/Staff/Principal Engineer Deep expertise building and operating large-scale distributed systems in production Polyglot engineering background; strong proficiency in Node.js or Golang preferred Hands ...

Principal Software Engineer/Developer (Java SpringBoot AWS) London/WFH to £120k Are you an experienced Java focussed Software Engineer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. As a Principal Software Engineer … with DevOps, CI/CD pipelines You're collaborative, enjoy problem solving and interacting with clients What's in it for you: As a Principal Software Engineer/Developer you will earn a highly competitive package: Salary to £120k Pension, Life Assurance, Income Protection Private medical care ...

Principal Software Engineer London - 4 days onsite £110k - £140k + Benefits We're hiring for one of the UK's fastest growing fintech scaleups, where reliability is a competitive advantage not a luxury. As a Principal Software Engineer you will be providing deep technical leadership alongside … being extremely hands on as part of a platform team. Principal Engineers will set technical directions, drive engineering standards and strategy while remaining deeply embedded in implementation and operational excellence. Responsibilities: Architect and implement highly available, multi-region infrastructure services Define resilience patterns across services (failover, circuit breaking, back ...

Principal Backend Engineer London (Occasional travel) Salary: £95,000 - £120,000 + RSU's + Benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions. This … successful? Degree in Computer Science or equivalent hands-on experience. 7+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and microservices at scale. Deep understanding ...

Principal Software Engineer London - 4 days onsite £110k - £140k + Benefits We're hiring for one of the UK's fastest growing fintech scaleups, where reliability is a competitive advantage not a luxury. As a Principal Software Engineer you will be providing deep technical leadership alongside ...

Principal Backend Engineer London (Occasional travel) Salary: £95,000 - £120,000 + RSU's + Benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions click apply ...

Principal Embedded Engineer About the Role An exciting start-up disrupting the consumer hardware industry is building a new category of AI-native devices. Firmware sits at the core of their products, and they are looking for a Principal Embedded Engineer to help build the embedded ...

Principal Software Engineer/Developer (Java SpringBoot AWS) London/WFH to £120k Are you an experienced Java focussed Software Engineer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. As a Principal Software Engineer ...

Front End-leaning Principal engineer who wants to combine your experience in web and AI to help unlock other engineering teams, this might be the role for you. This role will also be an opportunity to apply AI to real-world problems inside a healthy, profitable, and rapidly … time. You will help them stay ahead of the curve by solving both technical and sociotechnical problems. You would be joining a squad of Principal engineers with different expertise that serves as a centre of excellence to the 16+ engineering teams in the wider engineering function. Your domain? Everything ...

this passion for innovation that drives each one of our employees for personal and professional success. About The Role We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core … Mockito Ownership of quality standards, testability, and CI discipline Experience working in Agile/Scrum environments and influencing engineering best practices Experience Level Principal‐level backend engineering experience building and operating large‐scale, high‐performance systems Approximately 8+ years of backend development experience, with several years working on production ...

. Embed engineering best practice: implement CI/CD, code quality gates, automated testing, and observability from build to production. Guide platform evolution: re-engineer legacy .NET and SQL systems into modular, API-driven architectures. Build and empower teams: mentor full-stack, DevOps, and Automation Test engineers fostering autonomy ...

Our client is the leader in their field and with pipeline opportunities that would enable them to double their revenue by the end of 2028. To support this, they are in the early stages of ...