Nwaoke Francis Chizaram

I'm a backend engineer and software architect with over 4 years of experience designing and scaling real-time, transactional systems across fintech, healthtech, logistics, and e-commerce. I specialize in building fault-tolerant, event-driven platforms using Node.js, TypeScript, PostgreSQL, Redis, RabbitMQ, and Docker, with a strong focus on clean architecture, high availability, and performance.

I've led the development of several production-grade systems, including:

• RendezvousCare: A dating & wellness platform serving 50K+ daily users, with sub-300ms response times and 99.95% uptime. I built the backend using a modular monolith architecture, WebSocket-based chat, Redis caching, and optimized PostgreSQL queries.
• VTB: A real-time logistics booking engine with event-driven services, Redis, RabbitMQ, and traffic control via NGINX and Docker Swarm — handling spikes of 1K+ concurrent users.
• Payrendr: An HR and payroll system with a resilient salary engine, automated recovery queues, and ACID-safe transactional workflows — achieving 95% automation and 0 salary errors post-launch.
• Jerify: An AI KYC platform with 100K+ monthly verifications, built with TensorFlow, retry queues, degraded-mode fallbacks, and full observability through Prometheus and Grafana.

I build systems that don’t just work — they scale, recover, and deliver consistent results under pressure