I’m a Backend Developer with 6+ years of experience building scalable systems, high-performance APIs, and optimised databases.
I’ve worked across diverse domains — from e-commerce and fintech to mental health, video streaming, and social platforms.
I thrive on solving complex system design challenges, improving performance, and creating impactful products that scale.
- Languages: Python, Go, Java
- Frameworks: Django, Django REST Framework, Flask, FastAPI, Spring
- Databases: PostgreSQL, MySQL, Redis, NoSQL
- Tools & Platforms: AWS, Docker, Terraform, GitHub Actions, CircleCI, Bitbucket
- Messaging & Queues: Kafka, SQS
- Libraries: Pandas, Numpy
- APIs & Integrations: Stripe, RevenueCat, Firebase (FCM Notifications)
- Digital Consumer Platform for Dairy Products
- Digital Mental Health Platform
- Video Streaming Platform
- Social Networking Platform
- Influencer Marketing Tool
- Python Stripe Integration Library
- Business Information Platform
- US Stock Exchange Platform
- Hybrid EdTech Platform (Online + Offline Mode)
- Insurance Management System
- LinkedIn: Purnendu Kar
- Email: purnendu.kar8@gmail.com
I love diving into complex systems and optimising them for peak performance. Whether it's reducing API response times or designing scalable databases, I'm always up for a challenge!