About — Rahul Chakraborty

Who am I?

I'm a Computer Science and Engineering student pursuing my M.Tech. at the Indian Institute of Technology Indore. I enjoy working on systems programming, distributed services, database internals, and full-stack applications.

My interests span the full stack — from implementing SQL layers and storage-engine components to designing production APIs, event-driven workflows, and responsive web applications.

Experience

Software Developer Intern

Nov 2025 – May 2026

Extended Dynamic Systems · Kolkata, India

Engineered a distributed microservices architecture spanning 4+ Dockerized Go services and implemented fine-grained RBAC across 6 user and administrative roles.
Developed 30+ REST APIs and 15+ gRPC services integrating AWS Cognito passwordless authentication, S3 object storage, and OpenTelemetry distributed tracing.
Architected asynchronous event-driven workflows using AWS SQS, provisioned infrastructure with Terraform, and automated CI/CD pipelines using GitHub Actions.

Golang Docker AWS gRPC REST Terraform OpenTelemetry

Projects

PenguinDB

2025 – Present

Custom SQL Database · GitHub

Contributed to the SQL layer of a custom database supporting SQL queries over an underlying key-value storage engine.
Implemented the SQL lexer, parser, and AST nodes, establishing the foundation for query planning and execution.
Worked with database internals including WAL, SSTables, LSM Trees, manifests, Bloom filters, storage engine, catalog, and encoding.

C++ SQL Database Systems

Cravyn — Food Delivery App

Sep 2024 – Jan 2025

Full Stack Developer · Website

Built a monolithic backend REST API using Express.js and Bun to serve a responsive Next.js 15 frontend.
Designed and implemented a custom JWT-based authentication system using HttpOnly cookies for secure user sessions.
Designed a relational PostgreSQL schema for customers, restaurants, food items, carts, addresses, and order processing.

Express.js Bun Next.js PostgreSQL

Education

M.Tech. in Computer Science & Engineering

2026 – Present

Indian Institute of Technology Indore

Currently pursuing

B.Tech. in Computer Science & Engineering

2022 – 2026

University of Calcutta

CGPA: 9.0/10.0

Senior Secondary

2021

CBSE Board

Score: 84.8%

Secondary

2019

CBSE Board

Score: 94.6%

Skills

Languages

C C++ Python JavaScript TypeScript Go

Frameworks

React Express.js Next.js Hono.js Tailwind CSS

Databases

PostgreSQL MySQL MongoDB Redis Elasticsearch SQLite

Tools & Platforms

Docker Kubernetes Git GitHub Actions AWS Terraform

Core Concepts

Data Structures & Algorithms REST APIs gRPC Microservices Database Systems

Achievements

Status Code 2 Hackathon — 1st place in Quantitative Finance and RISE tracks.
GATE 2025 (Computer Science) — All India Rank 1951.
It's Alive – AI NPC Game Jam — Encouragement Award.
LeetCode — Rating 1918, top 4.17%.
Codeforces — Rating 1100+.

Connect

Feel free to reach out through any of the links below.

GitHub LinkedIn Medium Vault