You design and build payment-critical backend services end to end on a modern Java stack, with a high bar for correctness, reliability and security.
What you'll do
- Design and build payment-critical backend services and APIs on Java / Spring Boot.
- Ensure correctness and reliability under load.
- Build robust integrations and event-driven flows.
- Write thorough tests and help maintain high engineering standards.
- Mentor mid-level engineers.
Requirements
- 5+ years in Java backend with Spring Boot.
- Hands-on payments / fintech experience is required — you have worked on real payment or financial-transaction systems.
- Hands-on experience with at least one payment processor or gateway (e.g. MPGS, Cybersource or mada). This is a requirement for this role.
- Strong microservices and REST API design; relational databases.
- Solid grasp of transactional integrity and reliability.
- Containers / CI/CD and strong automated testing.
- AI-augmented engineering — you actively use AI coding tools such as Claude Code in your day-to-day development. This is a requirement for this role.
Nice to have
- Experience with more than one payment processor / gateway.
- Cloud platforms (OCI, AWS or Azure); Kafka.