asit kumar

Software Engineer I Delhi, India

Building the backbone of great products.

Hi, I’m Asit Kumar. I build backend services and AI-powered applications, from APIs and access control to agent workflows and RAG systems.

Explore my work View résumé
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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 toolkitPythonFastAPIPostgreSQLGoogle ADKRAG

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 Experience

Learning by
building.

From trainee to Software Engineer I, building backend services and AI-powered applications at Knowledge Excel.

My full résumé

Knowledge Excel

Delhi, India

— PresentCurrent

Software Engineer I

Full-time · Remote

  • Build and maintain REST APIs with Python and FastAPI, covering authentication, access control, PostgreSQL data flows, and service integrations.
  • Develop agent-based workflows with Google ADK and connect them to backend services and application logic.
  • Work on RAG pipelines, from document processing and chunking to embeddings, vector retrieval, and LLM integration.
Python · FastAPI · PostgreSQL · Google ADK · RAG · AWS S3
—

Software Engineer Trainee

Internship · Hybrid

  • Built FastAPI endpoints and worked on authentication, token refresh, and session management.
  • Worked with PostgreSQL queries and AWS S3 integrations, and contributed to an initial RAG retrieval pipeline.
  • Contributed changes through Git, code reviews, and the team’s deployment workflow.
Python · FastAPI · PostgreSQL

Planetcast Media Services Limited

Noida, Uttar Pradesh, India

—

Software Engineer Intern

Internship · On-site

03 A little about me

Curious mind.
Practical approach.

I’m a Software Engineer I at Knowledge Excel, based in Delhi and working remotely. My day-to-day work spans Python, FastAPI, PostgreSQL, Google ADK, and RAG systems.

I enjoy the work that connects backend engineering and AI: reliable APIs, clean data flow, permissions, useful retrieval, and services that work well together.

I’m deepening my understanding of system design, distributed systems, databases, and retrieval architecture. I learn by building, understanding why something works, and improving it in a real system.

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 & retrieval

Google ADK, agent workflows, RAG, document processing, chunking, embeddings, vector retrieval, LLM integration

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?

Building at Knowledge Excel

Good things start
with a conversation.

Have a project to discuss, an idea to share, or just want to say hello?
I’d love to hear from you.

Let’s talk asitshakya789@gmail.com
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