Chibuikem Okonkwo

I’m a software engineer with 4+ years building production payment and financial systems in Go and Java. I’ve shipped real domain depth in payments—Paystack, Flutterwave, Apache Fineract, escrow settlement, multi-currency transaction management, and billing reconciliation—into systems that run in production.

I’m especially proud of edge-case thinking and code quality. I take ownership seriously: from concept and scoping through implementation, rollout, and ongoing monitoring under real load, with cross-functional collaboration across product, finance, and operations.

At Wizer Consulting Services, I built Lucid entirely in Go—a production escrow and settlement platform handling multi-party financial transactions. I designed payment flows, settlement scheduling, signing workflows, and reconciliation logic from scratch, integrating Paystack and Flutterwave APIs with webhook handling, retry-with-backoff, and charge reconciliation.

I’ve also built high-traffic event-driven services for a multi-tenant banking platform using Java Spring Boot, Kafka-based pipelines, Redis caching, and MySQL with migrations. I improved reliability with Prometheus and Grafana, and I’ve delivered full-cycle backend payment systems for multiple clients, including strong testing results (95%+ pre-production defect detection), plus a 25% page-load improvement during my internship.