Abhirup Bhattacharyya

Summary

Master of Computer Applications graduate with hands-on experience in back-end and systems-oriented development. Built production software including scheduling systems for healthcare workflows, browser extensions, and Software Development Kit for an AI music detection back-end. Strong foundation in algorithms, computer networks, and distributed system fundamentals. Interested in computer graphics and low-level systems, with a focus on building efficient, reliable software.

Work Experience

Back End Intern

PerlThoughts | Remote | July 2025 - August 2025 | Certificate

• Designed and implemented a TypeScript + Nest.js API enabling patients to book doctor appointments via a front-end.
• Designed the API with minimal endpoints, strong validation, and consistent query and mutation semantics between front-end and back-end.
• Implemented an automated rescheduling algorithm to handle doctor schedule changes and emergencies, reducing manual clinic staff intervention.

Open-Source Contributions

AI Generated Music Detection API SDK

TypeScript, Vitest, PNPM workspaces, NPM | December 2025 - January 2026 | GitHub

Made two pull requests in which I:

• Developed a Software Development Kit for a REST API, handling client initialization, network errors, retries, and response validation.
• Implemented runtime-safe functions with assertions to ensure received data conforms to expected JSON schemas.
• Wrote unit tests using vitest; identified and reported a bug in the Jobs API.
• Designed the SDK to be JavaScript runtime–agnostic, supporting browsers and multiple JS runtimes.
• Documented exported functions using JSDoc.

Hackathons and Competitions

IGDC BYOG 2025 Game Jam

C++, WASM, Raylib, Emscripten | October 9-12, 2025 | Submission Link

• Built a top-down survival game called Cavesweeper during a 72-hour jam
• Implemented procedural map generation using random noise and cellular automata
• Implemented spawning, AI pathfinding, and tile-based collision logic
• Designed an escape-spawn balancing algorithm to ensure fair and consistent gameplay progression.

Projects

Taant Tantra - Full-stack E-commerce App

React Router, TypeScript, Express.js, REST API, Supabase, PostgreSQL, Vite, Razorpay API, Shiprocket, Figma | December 2025 - Ongoing | GitHub

• Developing a complete solution for a small business selling clothes.
• Designed the store homepage and admin dashboard using Figma.
• Used React Router for the front-end server with SSR.
• Integrated Shiprocket API to evaluate shipping feasibility and select optimal rates.
• Integrated Razorpay for payments, refunds, invoice generation, and webhook-driven payment automation.

Algorithm Visualizer

C++, WASM, JavaScript, WebGL | Deployed App | GitHub

• Built and deployed an interactive algorithm visualizer using C++, WebAssembly, and JavaScript.
• Supports building trees and graphs, and DFS or BFS traversal algorithms
• Renders nodes and edges on an HTML canvas, stepping through algorithms and highlighting execution states.

Shopify Inventory Management App

TypeScript, Node.js, Nest.js, Redis, BullMQ, GraphQL, PostgreSQL, JWT | GitHub

• Developed an app which automates processes for managing Shopify stores
• Implemented background processing using Redis and BullMQ for sync and mutation workflows.
• Designed cron-based jobs to ensure consistency between Redis cache, PostgreSQL, and Shopify APIs.
• Built a credits-based billing system integrated with Shopify Payments.
• Implemented role-based authorization and JWT-based authentication.

Productivity Timer Chrome Extension (React)

React, TypeScript, Chrome API, Vite | Chrome Extension | GitHub

• Built and deployed a Pomodoro-style productivity timer as a Chrome extension using React
• Managed accurate timer lifecycle using useEffect and useRef, handling pause/resume and background execution
• Persisted user settings and session state using Chrome Storage API

Golf Tournament App

JavaScript, Fetch API, Node.js, Express.js, EJS, Tailwind CSS | GitHub

• Developed an app which was used in a golf tournament of 72 players using Stableford scoring system to calculate scores
• The app helped judges and the admin facilitate the tournament and let players update their strokes and have judges verify the scores
• Allowed players to calculate their handicap during registration.
• Designed a role-based system for players, judges, and administrators to manage tournament scoring.
• Handled race conditions in cases where the admin and a player were editing the same value during the match

Education

Master of Computer Applications

Galgotia’s College of Engineering and Technology | Greater Noida, Uttar Pradesh | November 2022 - July 2024 | CGPA: 8.08

Bachelor of Computer Applications

Greater Noida Institute of Management | Greater Noida, Uttar Pradesh | August 2019 - June 2022 | Percentage: 65.47%

Certificates

• JavaScript | HackerRank | July 2025 | Certificate
• Node.js Developer | Udemy | June 2023 | Certificate ID: 0010f74970a9