Harsh
vardhan

I'm a Senior Software Engineer with 3+ years of experience building backend systems and full-stack applications that perform under pressure. Currently at Geeks2Connect Infotech in Jaipur, where I architect services that handle 10,000+ concurrent users without breaking a sweat.

My toolkit is Python-first — FastAPI is home — but I'm equally at ease in the Node.js ecosystem with NestJS and Express. On the frontend, I build with React and Next.js; on mobile, React Native for both iOS and Android.

I care deeply about clean architecture, measurable performance, and the humans on my team. I've mentored junior developers and led backend squads — because great engineering is as much about people as it is about code.

• →Architected FastAPI + PostgreSQL backend services serving 10,000+ concurrent users using async patterns and connection pooling
• →Engineered secure REST APIs with JWT + RBAC, eliminating unauthorized access incidents entirely
• →Optimized PostgreSQL queries with strategic indexing — 60% reduction in API response times
• →Redis caching layer reduced DB load by 40%, accelerating feed generation
• →Deployed on AWS (EC2, S3, SES) with Docker; maintained 99.9% uptime via CI/CD pipelines
• →Mentored 3 junior developers; accelerated team delivery by 25%

• →Built and maintained backend microservices with Node.js, NestJS, Express.js for CRM, HRMS, and profile management (5,000+ users)
• →Designed relational (PostgreSQL, MySQL) and NoSQL (MongoDB) schemas with query optimization
• →Maintained 95%+ code quality through unit testing and TDD practices