I design clear, secure, and scalable REST APIs that front-end teams and partners can rely on. Starting from business use cases and consumer needs, I model resources and flows, then produce a production-ready OpenAPI contract that removes ambiguity and accelerates integration. The design covers versioning and deprecation, auth/RBAC, rate limiting & quotas, and a consistent error model with retry and idempotency rules—so your API is predictable under real-world load.