Full Stack & Backend Developer

Hi, I'm Kumar Shubham.I build scalable systems.

I'm a software engineer based in Patna, India, specializing in high-performance backend infrastructure, real-time architectures, and modern web applications.

/ About Me

I have a strong foundation in computer science, currently pursuing my Master of Computer Applications (MCA) at IIT Patna & IIIT Ranchi alongside my professional commitments.

Previously, I co-founded Syskool.com, an EdTech platform where I managed full-cycle product development, scaling our user base to over 4.5M followers across social channels.

I thrive on building secure REST APIs, real-time systems, and working with modern tools like RAG and LangChain for AI-driven applications.

Backend

Node.jsExpressNestJSPythonJavaC++

Database

PostgreSQLMongoDBRedisPrisma ORM

Frontend

React.jsNext.jsTailwind CSS

DevOps & Tools

DockerAWSGitGitHub ActionsREST/WebSocket

/ Key Projects

Fortiche.com

Freelance Backend Developer | Jun 2024 – Nov 2024

Architected secure REST APIs and implemented OAuth2 authentication for an influencer-business platform. Integrated Stripe payments and real-time analytics dashboards using WebSockets.

Node.jsREST APIOAuth2StripeWebSocket

Webrly.com

Backend Engineer | Jan 2024 – Apr 2024

Built a scalable backend for a no-code site builder. Designed complex database schemas for dynamic user templates and supported real-time site previews using Socket.io.

Database DesignSocket.ioAPI Optimization

OLAai.com

AI Solutions Engineer | Apr 2025 – Jul 2025

Engineered an AI-powered security verification system achieving 85%+ accuracy using RAG architecture and vector search, alongside automated scraping pipelines.

RAGVector SearchPrompt EngineeringScraping

/ Contact Me

I'm currently available for full-time internships or interesting freelance projects. Whether you have a question or just want to say hi, I'll try my best to get back to you!