- Developed and optimized a high-performance ad-delivery system using **Node.js**, handling over **600M requests/day** with extremely low latency. - Ensured system scalability and reliability through performance tuning, caching, and efficient database querying (**MongoDB**). - Managed, expanded and optimized **Kubernetes** infrastructure.
Used tech stack
JavaScript
TypeScript
Angular
Node.js
Fastify
MongoDB
Ansible
Linux