const api = new APIService({ port: 8080, env: "production" });
from fastapi import FastAPI
app = FastAPI()
# API endpoints below
db.query(`SELECT * FROM users WHERE active = ?`, [1])
docker build -t api-service .
docker run -p 8080:8080 api-service

Hi, I'm Sabin Chapagain

Backend Developer

I build scalable, high-performance backend systems and APIs that power modern web applications.

View My Work Contact Me
Your Name

About Me

I'm a passionate backend developer with 4+ years of experience in designing and implementing robust server-side solutions. My expertise spans Node.js, Python (Django), GraphQL, REST APIs, and database technologies like MongoDB and PostgreSQL. I've had the privilege of helping companies build scalable systems that efficiently handle millions of requests daily.

My approach combines deep technical knowledge with a strong focus on clean architecture, performance optimization, and microservices. I believe in writing maintainable, well-tested code and building systems that stand the test of time.

When I'm not coding, you can find me contributing to open-source projects, writing technical articles, or exploring new technologies in the backend ecosystem.

Work Experience

Backend Engineer

Innovate Tech • Full Time • Feb 2023 - Present

Developed high-performance gRPC microservices handling 10K+ RPS

Implemented real-time features using WebSocket and GraphQL subscriptions

Designed event-driven architecture with RabbitMQ and Kafka

Node.js gRPC GraphQL WebSocket MongoDB RabbitMQ Kafka AWS

MERN Developer

Semantic Creation • Full Time • Sep 2021 - Feb 2023

Built RESTful APIs serving 50K+ daily active users

Optimized MongoDB queries reducing response times by 40%

Integrated frontend React applications with backend services

Node.js Express MongoDB React REST API

Backend Engineer

Anka EK • Part Time • Jun 2021 - Present

Developed Django REST APIs for social media platform

Implemented caching layer with Redis improving performance by 60%

Containerized applications using Docker for seamless deployment

Django PostgreSQL Redis GoLang Docker WebSocket

Technical Skills

Languages & Frameworks

  • JavaScript / TypeScript (Node.js, Express, tsoa, Koa)
  • Python (Django)
  • React

Databases

  • MongoDB
  • PostgreSQL
  • Redis

Messaging & Real-time

  • Apache Kafka
  • RabbitMQ
  • Socket.IO
  • gRPC

DevOps & Cloud

  • Docker
  • CI/CD
  • AWS (EC2, S3, Lambda, SQS)

Architecture

  • REST APIs
  • GraphQL
  • Microservices
  • Monorepo (Nx)

Authentication

  • JWT
  • OAuth

Featured Projects

My Second Teacher

An interactive e-learning platform used by thousands of students across Asia. Contributed to backend services and real-time features like chat using Socket.IO and GraphQL.

Node.js GraphQL MongoDB Socket.IO
Visit Site

HomeSchool Asia

A learning platform tailored for homeschooling. Worked on backend services and microservice architecture.

Node.js Express MongoDB gRPC Apache Kafka
Visit Site

DishHome

Nepal's leading digital TV service provider. Contributed to backend development for scalable features and real-time updates.

Node.js MongoDB Socket.IO React Redux
Visit Site

a-OK: Act of Kindness

A mobile app encouraging small acts of kindness. Integrated APIs and handled backend tasks related to user engagement.

Tsoa Node.js Django PostgreSQL Redis Docker
Google Play

Coax

A messaging platform for internal communication and customer interaction. Worked on features like rules, message activity, and Gmail service integration.

Node.js TypeScript MongoDB Socket.IO Google API
Visit Site

Orange Carrom

An engaging mobile game of Carrom. Worked on backend APIs for leaderboard, user stats, and matchmaking.

JavaScript Node.js MongoDB Firebase Cloud Messaging
Google Play

Get In Touch

[email protected]

+977 9814028392

Kathmandu, Nepal