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Yusuf Afolabi

@yusufafolabi

Message

I build scalable backend APIs and payment systems that improve transaction reliability, performance, and security.

Nigeria

Message

I've built production backend systems for Xedla Technology, Nesterlify, Byoe, and Edustack NG across fintech, travel, ride-hailing, and edtech.

At Xedla, I design and maintain services for secure digital transactions, escrow flows, and tier-based accounts. I improved transaction throughput by 45%, reduced abuse by 40%, and reduced onboarding drop-off by 28% through optimized MongoDB, validation logic, and account-provisioning integrations.

At Nesterlify, I engineered event-driven booking microservices and integrated three payment gateways with idempotent retry flows, increasing transaction success rates by 35%. I also built webhook confirmations and real-time WebSocket updates that reduced payment verification to under five seconds.

I've also delivered real-time ride matching at Byoe and led full-stack development for Edustack NG's multi-tenant school-management SaaS. I work with Node.js, NestJS, TypeScript, Python, SQL/NoSQL databases, cloud deployments, CI/CD, and secure API architecture to keep systems reliable at scale.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Xedla Technology

Jul 2025 - Present (1 year 1 month)

Designed and maintained core backend services for a fintech payment platform, building RESTful APIs for payment processing and account management. Implemented fraud-detection logic and optimized MongoDB schemas, improving transaction throughput by 45% and reducing p95 latency.

NestJS MongoDB REST APIs Swagger GitHub Actions CI CD Fraud Detection Query Optimization

Backend Engineer

Nesterlify

Jan 2025 - Jun 2025 (5 months)

Engineered event-driven microservices for a booking platform, integrating multiple payment gateways with retry logic and idempotent flows. Implemented webhook-based payment confirmations and optimized MongoDB schemas, achieving 99.8% uptime.

Microservices Event Driven Architecture MongoDB Payment Gateways WebSockets Docker CI CD

Backend Engineer

Byoe

Sep 2024 - Dec 2024 (3 months)

Designed and deployed backend systems for a ride-hailing app using Node.js and NestJS. Built a real-time ride-matching engine and implemented atomic transactional workflows for data consistency.

Node NestJS Real Time Systems Geolocation

Full-Stack Engineer

Edustack NG

May 2022 - Aug 2024 (2 years 3 months)

Led full-stack development of a multi-tenant school management SaaS, architecting RESTful APIs with strict tenant isolation and RBAC. Engineered PostgreSQL models and built React/Next.js frontend components, reducing production incidents by 35%.

NestJS TypeScript PostgreSQL React Next.js RBAC REST APIs Query Optimization