Full-stack software engineer building web applications, backend systems, and data-driven products.

• 💻 Full-stack and backend-focused developer
• 🚀 Working with TypeScript, Next.js, React, Node.js, and PostgreSQL
• 🔐 Experience with authentication, authorization, RBAC, and OAuth/SSO
• 📊 Built analytics platforms and backend services using ClickHouse and Hono
• 🤖 Previously worked on an AI-based auto-parallelization project at C-DAC using DeBERTa-v3 and PyTorch

Languages

TypeScript · JavaScript · Python · SQL · C++

Frontend

React · Next.js · Tailwind CSS

Backend & Data

Node.js · Hono · Express · PostgreSQL · ClickHouse · MongoDB · Prisma · Convex

Other

Git · Postman · Vercel · PyTorch

A real-time collaborative code editor built with React, Node.js, Socket.io, and Yjs CRDTs.

• Real-time collaborative editing with conflict-free synchronization
• Live cursors, presence, and in-room chat
• JWT authentication for REST and WebSocket connections
• Persistent sessions with MongoDB
• Sandboxed live preview for HTML, CSS, and JavaScript

During my internship at C-DAC, I fine-tuned a DeBERTa-v3 model on 42,360 labeled C/C++ loops to classify OpenMP parallelizability, and generated OpenMP pragma recommendations from its predictions.

• 81% accuracy and 0.77 F1 on a 5,296-loop held-out test set
• Evaluated across NAS Parallel Benchmarks, PolyBench, and SPEC OMP
• Degrades under distribution shift: on SPEC OMP it scored 82.5% accuracy but fell below the 86.4% majority-class baseline — so every suite is reported against that baseline rather than the favorable benchmark

A leak-free scikit-learn regression pipeline over the Ames Housing dataset (1,460 homes, 79 features), wrapped in a deployed Streamlit app.

• Imputation, scaling, and encoding are fit inside each CV fold, never on the full dataset
• Every error metric reported in dollars — R² 0.914, MAE $15,407 on the held-out test set
• Model selection ignores R² gaps smaller than the fold-to-fold noise and breaks ties on MAE, which picked the model that turned out better on unseen data
• pytest suite and CI on every push

• 💼 LinkedIn: linkedin.com/in/harsh-agrawal-dev
• 🌐 Portfolio: https://agrawalharsh.in/