Faruq Ayomide Olukayode

Architected and owned the entire Supabase backend, including schema design, Row-Level Security (RLS) policies, Edge Functions, and Auth flows, optimizing data security and access control.

Integrated Paystack webhooks for secure payment processing, implementing idempotent event handling to prevent duplicate transactions and ensure financial data integrity.

Developed and implemented React Native / Expo frontend screens, meticulously aligning with product design specifications to deliver a seamless and intuitive user experience.

Made critical architectural decisions, opting for Supabase over Firebase to ensure cost predictability and better relational database fit, enhancing long-term scalability and maintainability.

Continuously evaluated AI-generated code suggestions against production requirements, directly enhancing system reliability and aligning with Mercor's code evaluation standards.

Built and deployed a complete Point-of-Sale system tailored for Nigerian SME clients, enhancing local business operations and improving efficiency.

Developed the backend using Node.js/Express on Render, the frontend with Vanilla JS on Vercel, and integrated PostgreSQL via Supabase for robust data management and scalability.

Managed end-to-end functionalities including user authentication, product management, sales recording, and automated receipt generation, streamlining business processes.

Engineered a cross-platform, internet-free PC-to-PC file sharing tool leveraging Node.js, Express, WebSockets, and QR code generation for seamless local connectivity.

Designed the application specifically for real-world offline use cases, ensuring robust functionality and reliable file transfers in environments with unreliable or no internet connectivity.

Integrated ESP32 microcontrollers with Firebase Realtime Database to implement an RFID-based book tracking system, improving library management efficiency.

Diagnosed and resolved a critical Arduino-to-Firebase authentication failure, identifying an incorrect key type as the root cause, ensuring system reliability and data integrity.