API & Canonical Model Engineer

API & Canonical Model Engineer (Senior)
Location: India - Remote
Employment Type: Full-Time
Experience: Senior (7+ Years)

Roles & Responsibilities

• Design and develop scalable REST APIs and backend microservices using Java and Spring Boot.


• Build and maintain the Canonical Data Model and Core APIs for enterprise applications.


• Develop Backend-for-Frontend (BFF) services and API Gateway integrations.


• Build secure read and write APIs using CQRS and distributed system design patterns.


• Implement business rules, eligibility, and personalization services.


• Develop practitioner/admin consoles with role-based access, workflows, and audit capabilities.


• Collaborate with cross-functional teams to build secure, high-performance, and scalable backend solutions.

Mandatory Skills

• 5+ years of experience in Java and Spring Boot microservices development.


• Strong experience designing and developing REST APIs.


• Hands-on experience with OpenAPI v3 (Contract-First API Design).


• Experience with API Gateway (Spring Cloud Gateway or similar).


• Strong knowledge of CQRS, Saga, Transactional Outbox, Idempotency, and Distributed Systems.


• Experience with PostgreSQL and data modeling.


• Kafka integration experience.


• Strong understanding of OAuth2, OIDC, and Zero Trust Security.


• Experience with React or Angular.


• Experience building enterprise-grade microservices and backend applications.

Good to Have

• Experience designing Enterprise Canonical Data Models.


• Backend-for-Frontend (BFF) architecture experience.


• Rules Engine / Expression Engine implementation.


• Experience with workflow, approval, or audit-based applications.