At WTL - Wireless Technology Labs, I built a USSD and SMS platform for Lebara Telecommunications, including a React and TypeScript menu builder and a Node.js server that handles concurrent sessions. I connected it to the live billing system and built an SMS engine delivered through the Kannel SMS Gateway.
I replaced shared and personal SSH keys with short-lived certificates across production servers for eight telecom customers. I also developed reversible installation and key-removal tooling designed to protect live calls, and onboarded the engineering team.
I built WTL Vault, a credential management system using AES-256 encryption, JWT sessions, two-factor authentication, and role-based access control. On a project called Sabi Books, I built a marketplace with Next.js, TypeScript, and Supabase that is live and accepts card payments through Paystack.
