Koustav Singh
Full-Stack MERN & Web3 Developer
Building scalable, user-centric web & AI products that actually ship.
Based in Kolkata, India · Open to Full-Stack & Software Engineering roles
About Me
Get to know me better
I'm a Full-Stack MERN developer with a focus on building scalable, user-centric applications. My experience spans creating event platforms with real-time tracking, booking systems with secure payments, and AI-driven products that serve thousands of users daily.
I'm passionate about hackathons, open-source, and building developer communities. I believe in shipping fast, iterating often, and always learning new technologies.
Core Interests
Skills
Technologies I work with
Languages
Frontend
Backend
Databases & Cloud
Web3 & Blockchain
AI/ML
Tools & DevOps
My Professional Journey
From internships to leading development teams, here's my career timeline.
2024 - Present
2024 - Present
Web Developer
Samarth TMSL
- Engineered full-stack student platforms using the MERN stack, serving 500+ active users
- Developed secure authentication using Clerk and Firebase, achieving 99.9% uptime
- Built admin dashboards with analytics, reducing manual operational workload by 60%
- Optimized performance and accessibility (WCAG 2.1 AA), increasing user adoption by 40%
2025
2025
Full Stack Developer
Modelsuite.ai
- Built AI-driven SaaS features using React, Node.js, and MongoDB, reducing delivery time by 20%
- Architected and optimized RESTful APIs and microservices, improving responsiveness by 15%
- Implemented scalable database schemas supporting 10,000+ concurrent users
- Collaborated in Agile sprints with cross-functional teams, shipping production features weekly
Generative AI Developer Intern
AI Wallah
- Designed and fine-tuned LLM models for domain-specific tasks, improving accuracy by 25%
- Integrated AI workflows using Groq API and OpenAI, processing 10K+ automated requests/day
- Developed proof-of-concept AI prototypes adopted in 3 production applications
Backend Developer Intern
SaaSForge
- Designed RESTful APIs serving 50K+ daily requests with 99.5% service uptime
- Optimized PostgreSQL queries and indexing, reducing query execution time by 40%
- Implemented Redis-based caching, decreasing API response latency by 30%
Projects
Some things I've built
Synthamint Platform
Public · TypeScriptAI-powered NFT minting platform transforming creative ideas into unique digital assets
- AI-assisted metadata & media generation for NFTs
- Minting pipeline with decentralized storage (IPFS)
- Admin tooling for collection management and royalties
Atscribe
Public · TypeScriptProduction-ready MERN app for creating ATS-optimized resumes using AI
- End-to-end resume generation with AI prompts and templates
- ATS-friendly formatting and export to PDF
- Conversational editing and versioned resume drafts
Calorie Detector App
Public · TypeScriptAI-powered nutrition tracker with real-time analysis and voice assistant
- Image-based calorie detection using AI vision APIs
- Voice assistant for hands-free tracking
- Macro dashboard and offline-capable PWA
Chat App
Public · TypeScriptFull-stack chat & messaging application using Socket.IO and MongoDB
- Real-time messaging with rooms and typing indicators
- Persistent message storage with MongoDB
- User presence, read receipts, and media support
Event Organizer
Public · TypeScriptFull-featured event management platform built with Next.js and MongoDB
- Real-time attendance tracking and QR check-in
- Admin analytics dashboard and role-based access
- Designed for large events (500+ concurrent users)
Web3 Todo Dapp
Public · TypeScriptDecentralized task management with NFT rewards and streak tracking
- On-chain rewards via NFT minting for task completion
- Task delegation and persistent streak tracking
- Frontend integration with wallet providers and testnet deployment
Leadership & Community
Giving back to the community
Mentor
Open Source Connect & GSSoC
Mentored 50+ developers across full-stack, AI/ML, and Web3 stacks. Provided architectural guidance on scalability and clean API design.
Organiser
Open Odyssey 2.0 (MLH Hacktoberfest)
Co-led a large-scale open-source program with 200+ developers. Designed learning pathways enabling beginners to ship production-ready PRs.
Organiser
EDUC-A-THON 2.0
Organised a national-level hackathon with 1400+ participants. Managed logistics , outreach, and the 9-hour innovation sprint for 20 finalist teams.
Community Contributor
Hacktoberfest & Open Source
Active contributor to various open-source projects, focusing on scalability and security best practices.
Education
Academic background
B.Tech in Information Technology
Techno Main Salt Lake
Expected Graduation: 2028
Class XII — Computer Science
K.E. Carmel School, Amtala
Class X
K.E. Carmel School, Amtala
Achievements
Selected wins & milestones
Get In Touch
Let's build something amazing together