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Tobi Awosola

@tobiawosola

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I build secure, high-performance fintech APIs and microservices with Node.js and TypeScript.

Nigeria

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What I'm looking for

I'm open to remote and contract opportunities building secure, scalable APIs and microservices for web and mobile platforms.

I've built secure REST APIs and microservices for fintech, commerce, and mobility platforms, with over four years of backend development experience.

At SternPay, I improved API response times from about 850ms to under 200ms using query optimization and Redis-backed caching. I also built JWT authentication with refresh token rotation and a real-time notification service that reduced transaction-related support tickets by 30%.

At Kenrow Online, I built independently deployable merchant, inventory, and order microservices, a Stripe payments service, and an API Gateway for downstream services. I work across Node.js, TypeScript, NestJS, Express.js, PostgreSQL, React.js, Next.js, AWS, and Render.

Experience

Work history, roles, and key accomplishments

Senior Backend Developer

SternPay Inc

Feb 2025 - Jan 2026 (11 months)

Architected REST APIs and microservices for a FinTech platform, reducing API response time from ~850ms to under 200ms and implementing JWT-based authentication with refresh token rotation. Built a real-time notification service that reduced support tickets by 30%.

NodeJS TypeScript NestJS ExpressJS REST API Design Microservices PostgreSQL Redis JWT RBAC AWS Docker Jest Sentry

Backend Developer

Kenrow Online

Apr 2024 - Dec 2024 (8 months)

Architected microservices for merchant catalogue, inventory, and order management, and built a Stripe payment microservice with idempotency logic. Developed a reusable media management API and implemented an API Gateway for authentication, rate limiting, and routing.

NodeJS TypeScript NestJS ExpressJS Microservices Stripe API Gateway PostgreSQL MongoDB Docker Jest

Backend Developer

Rit Rides

Dec 2022 - Mar 2023 (3 months)

Built REST APIs for trip booking, real-time status updates, and admin management, and implemented JWT authentication with refresh tokens. Developed driver/rider credential management including document upload and verification workflows.

NodeJS ExpressJS REST API Design JWT PostgreSQL MongoDB Third Party APIs

Backend Developer

CoinsKash

Jan 2022 - Jun 2022 (5 months)

Integrated Google OAuth2 via Passport.js and email/password authentication for mobile platforms. Built wallet funding APIs using microservices architecture with over 80% test coverage using Jest.

NodeJS ExpressJS OAuth Passport.Js Microservices Jest MongoDB PostgreSQL