- Minimal 1-3 tahun pengalaman di Java Backend (diutamakan pernah di perbankan / fintech / payment
gateway).
- Mahir Java 21, Spring Boot 3.x, Spring Data JPA, Spring Security, dan Spring WebFlux (WebClient).
- Paham arsitektur Hexagonal (Ports & Adapters) / Clean Architecture dan Modular Monolith.
- Berpengalaman membangun integrasi API (REST, Webhook callback, HMAC SHA-256 signature).
- Paham konsep Idempotency, In-doubt Transaction handling, Resilience4j, dan background
reconciliation worker.
- Terbiasa dengan Oracle DB / PostgreSQL, Flyway Database Migration, dan Redis (caching & distributed
lock / ShedLock).
- Kuat di automated testing: JUnit 5, Mockito, WireMock, Testcontainers.
- Pengalaman integrasi sistem LOS (Sunline), Core Banking, ESB, Dukcapil, AML/DHN, atau Privy.
- Terbiasa dengan Docker, CI/CD, SonarQube, dan ArchUnit.
