Java API Engineer(SJ-BY)

5-7 Years

Not Disclosed

This job is no longer accepting applications

Job Description

What You'll Do

Define and evolve the canonical data model (Person, Employment, benefit domains), the Global ID scheme, and the custom-attribute extensibility model
Design the canonical Core API resource catalogue — contract-first OpenAPI v3, shaped by the canonical model rather than a 1:1 port of 300+ legacy APIs — plus BFF screen-composition conventions
Build the serving layer: BFF, API gateway, and process services as the sole consumer boundary, with CQRS read APIs and a bounded consistency window
Build the mediated write path (UI ODL system of record): sync-confirm by default, async-accept writeback via saga, transactional outbox, and compensation, with read-your-writes and pending-write handling
Build the eligibility/personalization rules layer: precompute parameters and evaluate expressions against stored data, reusing an existing evaluation library
Build the practitioner console: crosswalk editor, reference-data management, survivorship and match-threshold editors, and a daily-use steward queue — with roles, permissions, and audit
Implement service-to-service zero-trust security: workload identity, per-call authorization, gateway edge auth, and row-/column-level security

What We're Looking For

5+ years of Java / Spring Boot building production microservices
REST API design with contract-first OpenAPI v3; API gateway experience (Spring Cloud Gateway or similar)
Distributed-systems patterns in production: CQRS, saga, transactional outbox, idempotency, compensation/rollback
Data-modeling fundamentals: logical/physical modeling, identifier design, PostgreSQL (including JSONB trade-offs) Kafka-based integration
Security: OAuth2/OIDC, workload identity, zero-trust patterns, row-/column-level security
React or Angular with data-dense UI patterns — editable grids, workflow/approval queues, audit trails