Chidinma Onuora

I am a backend engineer with 3+ years of experience building and maintaining production-grade APIs and backend services, primarily in the fintech sector. I focus on clean architecture and reliable systems for transaction-heavy environments.

At my current role I develop Go and Node.js services for fiat and crypto flows, building secure REST APIs and middleware for rate limiting, IP whitelisting, and JWT-based authentication. I standardized automated testing across the backend to reduce bugs reaching production.

Previously, I resolved critical backend issues and refactored legacy Node.js logic, developed automated tests for key transaction workflows, and built a USD card issuing service that issued over 1,000 cards using Node.js and MongoDB. I documented external-facing APIs with Swagger/OpenAPI to streamline partner onboarding.

I collaborate closely with third-party partners, frontend and mobile teams, and customer success to integrate services, sync API responses, and automate support checks. I am passionate about solving complex problems in distributed systems and improving system security, reliability, and developer workflows.