About Me

Amit Kumar is a backend developer based in Bangalore with 3+ years of experience building scalable APIs, databases, and server-side systems across e-commerce, social media, and analytics domains. I specialize in Node.js, Django, Spring Boot, PostgreSQL, MongoDB, and AWS — choosing the right tool for each project's constraints.

My approach combines technical excellence with a deep understanding of business requirements. I believe in writing clean, well-documented code and implementing best practices to ensure robust and reliable systems. Key decisions I make on every project: database selection (SQL vs NoSQL), API style (REST vs GraphQL), caching strategy, and deployment architecture.

3+

Years Experience

20+

Projects Completed

10+

Technologies Mastered

Skills & Technologies

Programming Languages

Python
Java
Node.js
PHP

Frameworks & Libraries

Spring Boot
Django
Express.js
Laravel

Databases

MySQL
PostgreSQL
MongoDB
Redis

Tools & Technologies

Docker
AWS
Git
REST APIs

Featured Projects

Four representative backend projects demonstrating API design, database modeling, real-time systems, and analytics processing. Each project shows the tech stack, architecture decisions, and outcomes. Full case studies with metrics available on request.

E-Commerce API

REST API handling 10K+ RPS with sub-100ms p99 latency. Built user authentication (JWT), product catalog with variant support, cart/checkout flow, and order processing with idempotency keys. MongoDB aggregation pipelines for real-time inventory.

Node.js Express MongoDB

Social Media Backend

Real-time messaging supporting 5K concurrent WebSocket connections. Django Channels for async handling, PostgreSQL for relational data (users, posts, followers), Redis for pub/sub and caching. Implemented feed fan-out on write with pagination.

Python Django PostgreSQL

Analytics Dashboard API

Processed 1M+ events/day with <5s end-to-end latency. Spring Boot with Kafka for event ingestion, MySQL for dimensional modeling, Redis for pre-aggregated metrics. Built configurable report builder with CSV/PDF export.

Java Spring Boot MySQL

Get In Touch

Let's work together!

Available for freelance backend projects and full-time roles in Bangalore or remote. I respond within 24 hours. Whether you need an API built, database optimized, or a system scaled — let's discuss.

Location

Bengaluru, India