teya - Principal Backend Engineer
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Requirements
• 8+ years of experience building and operating distributed, production-grade backend systems • Proven track record operating at Senior Staff or Principal level, driving architecture across multiple teams or domains • Deep expertise in Java (17+), Spring Boot, and modern backend engineering practices • Strong experience with microservices, event-driven architecture, and asynchronous systems • Experience building systems for high throughput, low latency, and reliability, ideally in fintech or transaction-heavy environments • Strong grounding in system design, data structures, and performance trade-offs • Hands-on experience with AWS, Docker, and Kubernetes in production environments • Proven ability to implement observability, resilience patterns, and CI/CD best practices • Excellent communication skills with the ability to influence and align stakeholders • A track record of mentoring senior engineers and leading through ambiguity
Responsibilities
• Own and drive the architecture behind our most critical platforms, ensuring they scale with the business and unlock new capabilities • Design and evolve high-scale, cloud-native systems powering payments and merchant experiences • Lead the development of resilient, secure, and compliant services for high-volume transaction processing • Shape and drive adoption of modern backend practices (Java 17/21, Spring Boot 3, Kotlin, clean architecture) • Architect event-driven systems (Kafka) that enable scalable, decoupled domains across teams • Define and enforce standards for API-first development (REST/gRPC) and domain-driven design (DDD) • Set the bar for availability, performance, fault tolerance, and observability across critical systems • Partner deeply with Product, Data, and leadership to translate business priorities into scalable technical strategy • Lead cross-organisational initiatives that are essential to company growth and market expansion • Influence engineering direction through hands-on contribution, design leadership, and mentorship • Bring structure to ambiguity across technical, regulatory, and operational domains
Benefits
• We trust you, so we offer flexible working hours, as long it suits both you and your team; • Physical and mental health support through our partnership with GymPass giving free access to over 1,500 gyms in the UK, 1-1 therapy, meditation sessions, digital fitness and nutrition apps; • Our company offers extended and improved maternity and paternity leave choices, giving employees more flexibility and support; • Cycle-to-Work Scheme; • Health and Life Insurance; • Pension Scheme; • 25 days of Annual Leave (+ Bank Holidays); • Office snacks every day; • Friendly, comfortable and informal office environment in Central London.
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