Blessed Oscar Sam
Building the infrastructure that powers the internet.
💻 I design and engineer backend systems that can take a punch, distributed APIs, high-throughput services, and data infrastructure that keeps businesses running at scale. From a single startup endpoint to a multi-service architecture handling millions of transactions, I've engineered it all.
âš¡ My engineering philosophy: performance is a feature, reliability is non-negotiable. I've slashed endpoint latency from 13 seconds down to 200ms, migrated production databases with zero data loss, and built AI-powered tooling that ships across microservices like a library.
What I do
API Architecture
Designing high-performance REST and WebSocket APIs with clear contracts, versioning strategies, and sub-200ms response targets.
Database Engineering
Modeling, indexing, and tuning PostgreSQL and Redis instances to handle massive query loads without breaking a sweat.
System Design
Architecting fault-tolerant monoliths and microservices, choosing the right tool for the right problem, every time.
Cloud & DevOps
Building CI/CD pipelines, containerising services with Docker, and managing cloud infrastructure on AWS EC2 and S3.
Security & Compliance
Implementing auth systems, idempotency for payment flows, fuzzy identity verification, and real-time error monitoring.
Performance Optimization
Profiling and eliminating bottlenecks, I've turned 13-second endpoints into 200ms ones through caching, query tuning, and async patterns.
Companies I've built for