Ayush Koolwal

I am a Software Engineer (SDE-1) with 2.9 years of hands-on experience building scalable backend systems using Node.js, TypeScript, Express, and MongoDB. I focus on secure, high-performance REST APIs, transaction systems, and admin tooling, emphasizing clean, maintainable code.

At OneVerse Gaming Technologies, I built a complete backend ecosystem for an admin panel and website, implemented JWT authentication with dynamic role-based access control, and designed APIs for gameplay, transactions, KYC verification, and contest management. I optimized performance using data-structures-and-algorithms principles, reducing latency by 20% and improving concurrency handling.

Previously at Xebia, I contributed to five major product releases, improved code quality through reviews, and used profiling tools to achieve 20% faster response times. I value collaboration, thoughtful system design, and continuous improvement through testing, CI/CD, and cloud deployment on AWS.