Principal Backend Engineer – London (Hybrid) | Up to £160k + Bonus

Principal Backend Engineer – London (Hybrid) | Up to £160k + Bonus

We're partnered with a fast-growing fintech company building mission-critical software used by thousands of businesses across multiple international markets. Backed by leading investors and experiencing significant growth, they're investing heavily in their engineering organisation to scale the next generation of their platform

As a Principal Backend Engineer, you'll provide technical leadership across several engineering teams, driving architectural decisions, mentoring senior engineers, and helping define engineering best practices across the organisation

What You'll Be Doing:

• Design and evolve highly scalable, cloud-native backend systems
• Drive engineering standards across modern Java technologies, distributed systems and clean architectural principles
• Collaborate with Product, Platform and Engineering leadership to shape technical strategy
• Lead cross-functional initiatives and mentor senior engineers across multiple teams

What We're Looking For:

• 8+ years building and operating large-scale backend systems in production
• Experience working at Staff or Principal Engineer level
• Strong expertise in Java, Spring Boot, microservices and event-driven architectures
• Experience designing distributed systems with a focus on scalability, resilience and performance Hands-on experience with AWS, Docker and Kubernetes

Location: London, hybrid working (2–3 days per week in the office)

Package: salary up to £160,000 plus bonus

Principal Backend Engineer – London (Hybrid) | Up to £160k + Bonus