• Migrated 50+ APIs from .NET Framework 4 to .NET Core, modernizing system architecture and boosting
performance/scalability
• Spearheaded development of Buy Now, Pay Later (BNPL) and Analytics APIs, enabling new financial products
for banks and merchants
• Supported 20+ banks across Africa, driving platform adoption in 6 countries and improving service for 5M+
end users
• Enhanced API performance by optimizing LINQ queries, leveraging async/await, caching, and dependency
injection
• Implemented observability with the ELK stack, reducing average incident resolution time by 40%
• Conducted client meetings to assess technical needs and align API solutions with business goals
• Mentored 2 junior developers through peer code reviews and best-practice guidance