Umezulike Calistus Nnachebe

I’m a results-driven Software and DevOps Engineer focused on building scalable backend systems and distributed applications. I excel at designing and deploying production-grade RESTful APIs and e-commerce platforms, backed by my certifications from ALX Africa in Backend/DevOps and Frontend/Mobile engineering.

At Ice Tech Hub, I engineered and maintained robust backend services for high-traffic commerce Nigeria platforms, owning core flows like product catalogs, order processing, and user management. I architected distributed components for high availability and fault tolerance, streamlining payment integration with Paystack and Flutterwave and building automated email notification pipelines.

I also collaborate cross-functionally to deliver high-performance APIs optimized for frontend and mobile clients, while improving performance through advanced caching strategies and query tuning to reduce API latency. Beyond my day-to-day work, I’ve built tools and products like Zelte (API testing), Ollagenix Router (AI infrastructure routing), GlixyMetric (VS Code productivity analytics), and a full E-Commerce API Suite for transaction-ready order and payment management.