asit kumar

Backend developer Delhi, India

Building the
backbone of
great products.

Hi, I’m Asit Kumar. I turn complex requirements into clear APIs, reliable services, and real-time experiences. Thoughtfully built, from the inside out.

Explore my work View résumé
Find me onGitHub LinkedIn
Asit Kumar outdoors among the trees and hills
Asit KumarDeveloper. Curious by default.
Behind every great experience,
there’s a thoughtful backend.
Currently building at Knowledge ExcelA little scroll, a lot to explore
My everyday toolkitPythonFastAPINode.jsPostgreSQLRedis

01 Selected work

Ideas, built into systems.

A closer look at the problems I’ve worked on
and the backends that bring them to life.

01 / Backend development · Social impact

Smart Food Waste
Reduction Platform

A donation platform that connects food donors with nearby NGOs, helping surplus food find the people who need it.

  • Node.js
  • Express.js
  • MongoDB
  • Redis
  • Socket.io
Under the hood
  • Geospatial indexing and a matching algorithm that ranks donations by distance, urgency, and NGO capacity.
  • JWT authentication and role-based access for donors, NGOs, and administrators.
  • Socket.io status updates, Redis caching, and OpenStreetMap API integration.
Visit project GitHub

02 / Backend development · Real-time

EchoSphere
Real-Time Chat

A messaging backend built for conversations that flow, with event-driven delivery and secure authentication from the first hello.

  • Node.js
  • Express.js
  • MongoDB
  • Socket.io
  • OAuth 2.0
Under the hood
  • An event-driven Node.js and Socket.io backend for real-time message delivery.
  • JWT sessions, OAuth 2.0, and bcrypt password hashing for secure access.
  • RESTful APIs with Express.js middleware and rate limiting to protect against abuse.
Visit project GitHub
Built with a focus on the details you don’t always see.More on GitHub

02 The journey so far

Learning by
building.

Real products, real challenges, and a little more understanding with every release.

My full résumé
— PresentCurrent

Backend Developer Trainee

Knowledge Excel Pvt Ltd · Delhi, India

  • Building FastAPI services for core product modules within a microservices architecture.
  • Implemented JWT authentication, token refresh, and session management across 8+ endpoints.
  • Optimized PostgreSQL queries and indexing; integrated AWS S3 and an initial RAG retrieval pipeline using vector embeddings.
  • Contributing through Git, code reviews, and an agile deployment workflow.
Python · FastAPI · PostgreSQL · AWS S3 · RAG
—

Backend Developer Intern

Webapphealing Technology Pvt. Ltd. · Noida, India

  • Built 12+ RESTful endpoints with Node.js and Express.js, following MVC architecture.
  • Implemented JWT authentication and role-based access control for protected routes.
  • Created reusable validation, error-handling, and logging middleware; improved throughput with asynchronous request handling.
Node.js · Express.js · JWT · RBAC

03 A little about me

Curious mind.
Practical approach.

I’m a backend developer based in Delhi, working with Python and Node.js to build the systems behind everyday experiences.

I enjoy the process of making things work well: a clear API contract, a faster database query, or a real-time update that arrives when it should. Lately, I’m exploring how RAG and vector databases can make search more useful.

My approach is simple: understand the problem, build with care, and keep learning.

The tools behind the work

Always learning. Always refining.
01 /

Languages & backend

Python, JavaScript, TypeScript, Java, SQL, FastAPI, Node.js, Express.js, RESTful APIs, MVC

02 /

Data & performance

PostgreSQL, MongoDB, MySQL, Redis, database design, query optimization, indexing

03 /

Security & delivery

JWT, OAuth 2.0, RBAC, bcrypt, AWS S3, Docker, Git, GitHub, Linux, CI/CD, Postman

04 /

AI & exploration

Retrieval-Augmented Generation, vector databases, prompt engineering, API integrations

Education · 2022–2026

B.Tech in Computer Science
& Engineering

Dr. A.P.J. Abdul Kalam Technical University

CGPA 7.7 / 10.0

A habit of problem solving

200+LeetCode problems Contest rating: 1458120+GeeksforGeeks problems Coding score: 310+HackerRank certifiedProblem Solving (Intermediate) · Python (Basic)

04 What’s next?

Open to backend opportunities

Good things start
with a conversation.

Have a role in mind, a project to discuss, or just want to say hello?
I’d love to hear from you.

Let’s talk asitshakya789@gmail.com
+91 63981 74441
LinkedIn GitHub Download résumé