Oyewole Saheed

I’m a backend developer focused on building secure, scalable APIs and services—especially microservices and AI agent-driven workflows. I love clean code and real-world problem solving, and I aim to ship production-ready systems that teams can rely on.

I’ve been building backend infrastructure for a cryptocurrency proprietary trading platform at Beta Funds Corporation. I design scalable REST APIs, implement ledger and PnL calculation systems, integrate real-time market data feeds, and enforce strict audit logging with OAuth-compliant authentication.

Earlier, as an HNG Internship Backend Developer (Finalist), I contributed to real-world backend systems across API design, microservices, AI agents, database architecture, and workflow automation. I worked on DeenAI App backend modules using NestJS, TypeORM, and PostgreSQL, improved endpoint reliability to 98%, and delivered distributed notification microservices with strong performance and high success rates.

I’ve also built and maintained backend services across fintech and product platforms, including Paystack payment gateway integration for an OOH advertising system and authenticated real estate listing APIs for a platform connecting verified property owners to buyers and renters. My projects—like a Secure Wallet & Payment Gateway Service with idempotent webhook processing and scoped API key lifecycle—reflect how I approach security, reliability, and traceable data.