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.
Details over vibes. If it's not secured, I'm not done.
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.
What I'm focused on
Scaling backend infrastructure at GoFlex
Senior Backend Engineer, building and hardening the APIs, payment flows, and services that keep the platform running at scale.
Shipping AI-powered backend tooling
Building internal AI tooling that plugs into microservices like a library, automating the repetitive parts of backend work.
Chasing the last millisecond
Profiling hot paths, tuning queries, and refining caching strategies, turning multi-second endpoints into sub-200ms ones.
Exploring distributed systems & event-driven design
Going deeper on message queues, idempotency, and fault-tolerant architecture patterns for high-throughput services.