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# Principal Backend Engineer

- **Company:** Teya
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Multitier Architecture, Amazon Web Services, Continuous Integration, Data Structures, Fault Tolerance, Spring-boot, Backend, Kotlin, Event Driven Architecture, Kubernetes, Low Latency, Apache Kafka, Api Design, Domain Driven Design, Docker, Microservices
- **Published:** August 18, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/44343360/

## About the Role

that are essential to company growth and market expansionInfluence engineering direction through hands-on contribution, design leadership, and mentorshipBring structure to ambiguity across technical, regulatory, and operational domainsWhat You Bring8+ years of experience building and operating distributed, production-grade backend systemsProven track record operating at Senior Staff or Principal level, driving architecture across multiple teams or domainsDeep expertise in Java (17+), Spring Boot, and modern backend engineering practicesStrong experience with microservices, event-driven architecture, and asynchronous systemsExperience building systems for high throughput, low latency, and reliability, ideally in fintech or transaction-heavy environmentsStrong grounding in system design, data structures, and performance trade-offsHands-on experience with AWS, Docker, and Kubernetes in production environmentsProven ability to implement observability, resilience patterns, and CI/CD best
practicesExcellent communication skills with the ability to influence and align stakeholdersA track record of mentoring senior engineers and leading through ambiguityThe PerksWe 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.Teya is proud to be an equal opportunity employer.We are committed to creating an inclusive environment where everyone regardless of race, ethnicity, gender identity or expression, sexual orientation, age,
disability, religion, or background can thrive and do their best work. We believe that a diverse team leads to better ideas, stronger outcomes, and a more supportive workplace for all.If you require any reasonable adjustments at any stage of the recruitment process whether for interviews, assessments, or other parts of the application-we encourage you to let us know. We are committed to ensuring that every candidate has a fair and accessible experience with us.LocationLondonEmployment TypeFull timeDepartmentEngineering

## Description

that multiple teams depend on, bringing clarity to ambiguity and ensuring our most important initiatives succeed.What You'll DoOwn and drive the architecture behind our most critical platforms, ensuring they scale with the business and unlock new capabilitiesDesign and evolve high-scale, cloud-native systems powering payments and merchant experiencesLead the development of resilient, secure, and compliant services for high-volume transaction processingShape 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 teamsDefine 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 systemsPartner deeply with Product, Data, and leadership to translate business priorities into scalable technical strategyLead cross-organisational initiatives


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