Computer Science Student / Full-Stack Developer
Hi, I am Hemant Kumar Jha.
A
I build web applications, solve programming problems, and keep learning by turning ideas into practical projects.
About
Developer mindset, student energy.
My Journey Into Software Development
My journey into software development started with a simple curiosity: how do websites and applications actually work behind the screen? That curiosity slowly turned into a habit of experimenting, breaking things, fixing them, and learning one concept at a time.
As a Computer Science student, I began by strengthening my programming fundamentals and problem solving through C++ and competitive programming. That foundation helped me think more clearly about logic, efficiency, and structure before moving deeper into real-world development.
Over time, I started building full-stack projects using React, Node.js, Express, MongoDB, and SQL databases. Working on these projects taught me how frontend experiences, backend APIs, databases, authentication, and deployment all connect to create something useful.
I enjoy learning by building. Every project, bug, hackathon, and new technology gives me a better understanding of how to write cleaner code, design better user flows, and solve problems with more confidence.
What Drives Me
- Solving real problems with simple ideas
- Writing readable, maintainable code
- Learning through collaboration
- Improving through consistent practice
Skills
Tools I use to build, debug, and ship.
Intermediate / Learning
Exploring / Future Goals
Achievement
Featured win.
1st Place
Hackathon Winner - FinTech Theme
Real-time portfolio analytics and automated trading assistant
Built a FinTech product with financial API integrations, portfolio tracking, automated assistant workflows, and an intuitive interface for real-time decision making.
FinTech
Node.js
MongoDB
React
Next.js
REST APIs
Projects
Selected builds and experiments.
March 2026
Distributed Collaborative IDE with Remote Code Execution
- Engineered a scalable distributed collaborative IDE enabling multiple users to simultaneously edit, execute, and monitor code in shared repositories using CRDT-based synchronization (Yjs) and WebSockets.
- Built a secure containerized execution engine using Docker worker nodes to run multi-language code environments with real-time log streaming and isolated sandbox execution.
- Developed production-grade IDE capabilities including live collaborator cursors, repository snapshots, replayable editing sessions, and distributed remote code execution monitoring.
React
TypeScript
Monaco Editor
Yjs
WebSockets
Node.js
Docker
PostgreSQL
October 2025
Cloud-Based E-Commerce Recommendation System
- Architected a resilient serverless data pipeline on AWS Lambda that processes 1,000+ events/sec, optimizing throughput and eliminating bottlenecks.
- Deployed a collaborative filtering engine (matrix factorization) with 73% accuracy, bridging business logic with machine learning insights.
- Launched a production-grade inference API with sub-200 ms latency, enabling real-time product recommendations at scale.
Python
AWS (Lambda, S3, DynamoDB)
Machine Learning
Kafka
Certifications
Learning milestones and verified practice.
Full-Stack Development
MERN Stack Development
Focused on building web applications with React, Node.js, Express, MongoDB, APIs, and deployment workflows.
React
Node.js
Express
MongoDB
Programming Fundamentals
Data Structures & Algorithms
Built a stronger foundation in problem solving, algorithmic thinking, complexity analysis, and C++ implementation.
C++
DSA
Problem Solving
Database & Backend
SQL and API Development
Practiced relational database design, query writing, REST API structure, and backend integration patterns.
MySQL
PL/SQL
REST APIs
Profiles