Languages
C, C++, Python, Java, JavaScript, TypeScript, SQL, NoSQL
Hi, I’m Grins Sah 👋
Full-Stack Developer | Knight (Top 3.69%) @ LeetCode | Codeforces Pupil (Max 1364) | CodeChef 3⭐ (Max 1621) | DevOps & Deep Learning Enthusiast
B.Tech Computer Engineering @ PICT Pune (2024–2028) · GPA 9.44 · Pune, India
🚀 About Me
I’m a computer engineering undergraduate passionate about problem solving, scalable systems, and AI. I actively work across Data Structures & Algorithms, Full-Stack Web Development, and Machine Learning, and I enjoy building systems end-to-end — from raw algorithms to deployed applications.
- 720+ DSA problems solved on LeetCode
- Strong foundation in C++ DSA, OOP, and system design basics
- Experience building production-grade web and ML systems
- Actively exploring Transformers, distributed systems, and DevOps
🛠️ Technical Skills
Core CS
Data Structures & Algorithms, OOP, Operating Systems (basics), DBMS
Web & Backend
React, Next.js, Express.js, FastAPI, WebSockets, MongoDB, TailwindCSS
ML / AI
PyTorch, Scikit-Learn, Deep Learning, CNN, BiLSTM, Attention Models
DevOps / Cloud
Docker, Git, GitHub, Azure, Kubernetes, Cloud Computing
📌 Featured Projects
🌤️ WeatherNet – Solar Energy Prediction
PyTorch · FastAPI · React
Predicts next-hour solar radiation for Indian locations with CNN + BiLSTM + Multi-Head Attention. Trained on 200K+ records with full ML pipeline from preprocessing to frontend deployment.
🤖 GPT-2 From Scratch
PyTorch · FastAPI · Next.js
Built a minimal GPT-2 inference engine with masked self-attention, residual connections, GELU, and tokenization. Backend optimized with FastAPI and frontend deployed on Vercel.
🎨 Collaborative Drawing App (Excalidraw-like)
MERN Stack · WebSockets
Real-time collaborative drawing app with optimized raw canvas rendering and monorepo architecture for modular, scalable development.
📚 Data Structures & Algorithms Repository
Implementations in C++ (primary) with additional C, Rust, Go, and Java coverage across arrays, linked lists, stacks, queues, trees, graphs, and dynamic programming.
🧩 More Projects
- database_engine — C++ based database engine implementation
- insurance_claim — ML workflow for insurance-claim analysis
- gpt2_server — FastAPI/PyTorch backend for GPT inference
- machine_learning — ML experiments and model notebooks
- coursify — web app project built with JavaScript stack
- youtube_api — TypeScript project using YouTube APIs
🏆 Achievements
- LeetCode: 720+ problems solved | Max Rating 1953
- CodeChef: 3★ | Max Rating 1621
- Codeforces: Pupil | Max Rating 1364
- Runner-up, PISB Techrush Hackathon (AI/ML)
- JEE Advanced 2024: AIR 9455 (among 2L+ candidates)
Education
SCTR’s Pune Institute Of Computer Technology
B.Tech, Computer Engineering (Sep 2024 – Present) · CGPA 9.48
Blossom Public School
CBSE Class 12 (PCM) (Aug 2022 – May 2024) · CGPA 9.8