Open to opportunities

Harish Kumar

@harishkumar10

Message

MERN Stack developer delivering scalable, high-performance web applications and measurable performance improvements.

India

Message

What I'm looking for

I seek a collaborative engineering role building scalable web applications, emphasizing performance, real-time systems, CI/CD, and opportunities to mentor and grow.

I am a results-driven MERN Stack developer with over four years building scalable, high-performance web applications. I specialize in optimizing site performance, architecting event-driven systems, and implementing microservices and real-time data solutions that improve responsiveness and uptime.

I have driven measurable improvements such as a 30% site speed increase through Firestore optimization, built real-time synchronization with 99.9% uptime, reduced API response times by 40%, and earned internal awards for technical contribution and consistent excellence. I enjoy mentoring junior engineers and collaborating with cross-functional teams to deliver production-grade features and automated CI/CD workflows.

Experience

Work history, roles, and key accomplishments

Current

MERN Stack Developer

Current

Startappss System India Pvt. Ltd.

May 2025 - Present (9 months)

Developing and deploying full-stack MERN applications with emphasis on scalable architecture, performance optimization, and CI practices; collaborated with cross-functional teams to deliver high-impact features on tight deadlines.

MongoDB Firebase Firestore Performance Optimization CI CD Microservices

MERN Stack Developer

Appy Pie LLP

Jul 2021 - May 2025 (3 years 10 months)

Engineered high-performance web applications, improving site speed by 30% via Firestore optimization and reducing API response times by 40% through microservices and efficient backend design.

Next.js Firebase Firestore MongoDB Microservices