At JamaJama, I integrated Paystack, Twilio, and Postmark for payment and customer communication workflows, with reported outcomes including 18% lower payment friction, 98% SMS delivery, and 99.8% email deliverability. I also implemented JWT and OAuth 2.0 authentication flows, contributing to a 35% reduction in onboarding time and 20% higher retention.
At BellBank MFB, I maintained a utility service supporting web and mobile banking and integrated providers for bill payments, airtime, and electricity vending. I migrated a referral service from NestJS to Go/Gin, improving performance and reducing memory overhead; at Holmen Technologies, I built and maintained RESTful APIs with C# and ASP.NET Core.
