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Vaibhav Singh

Vaibhav Singh

Full Stack Developer

Lucknow, India 1+ yrs exp 87 · Excellent

About

Full Stack Developer (Software Developer) skilled in JavaScript, TypeScript, React.js / Next.js, Node.js / Express.js, and Python (Flask, FastAPI), who has independently designed, built, and deployed two live production web applications end-to-end. Hands-on with REST API development, JWT/OAuth 2.0 authentication, relational databases (PostgreSQL, MySQL), and real-time features over WebSockets. Integrates LLMs and AI services (Groq, LLaMA 3.1, RAG) into production using AI-assisted development tools (Claude, GitHub Copilot, Cursor). Experienced across the full software development life cycle (SDLC) - requirements, schema design, frontend and backend development, testing, and deployment (Git, CI/CD, Vercel) in an Agile workflow. Strong problem-solving, communication, and end-to-end ownership, specializing in building Next.js / TypeScript / Supabase full-stack systems and shipping them to production. BCA graduate (2026).

Skills & Expertise (61)

Typescript Intermediate
7.8/10
2
Years Exp
JavaScript Intermediate
7.8/10
2
Years Exp
React.js Intermediate
7.6/10
2
Years Exp
Next.js Intermediate
7.4/10
2
Years Exp
Node.js Intermediate
7.4/10
2
Years Exp
Express.js Intermediate
7.0/10
2
Years Exp
Postgresql Intermediate
7.0/10
2
Years Exp
SQL Intermediate
7.0/10
2
Years Exp
Python Intermediate
7.0/10
2
Years Exp
Git Intermediate
7.0/10
2
Years Exp
AWS Intermediate
6.6/10
2
Years Exp
Docker Intermediate
6.6/10
2
Years Exp
Flask Intermediate
6.4/10
2
Years Exp
FastAPI Intermediate
6.4/10
2
Years Exp
RAG scikit-learn Pandas NumPy OpenCV NLP Prompt Engineering GitHub Adaptability LLM Integration GCP Vercel Postman VS Code Agile Claude GitHub Copilot Cursor Problem-solving Communication Teamwork Time management OAuth 2.0 Supabase Php Java C++ HTML5 CSS3 Tailwind CSS Shadcn UI Responsive Design Web Accessibility JWT streaming responses Session management Webhooks MySql MongoDb Prisma Schema Design Indexing Row-Level Security REST API design Stripe Payments Third-Party API Integration

Work Experience

Full Stack Developer (Freelance)

medstocksy.in

Apr 2025 - May 2026

Independently built, deployed, and maintain two client-facing production web applications, owning product, frontend, backend, and deployment. Designed, built, and deployed Medstocksy (medstocksy.in), a multi-tenant pharmacy SaaS (Next.js, TypeScript, Supabase/PostgreSQL) spanning 3 core modules (real-time inventory, POS billing, and Google OAuth authentication) across isolated pharmacy tenants. Architected the full backend: a relational PostgreSQL schema spanning 4 core tables (products, batches, customers, bills), secure REST API endpoints, JWT session handling, and Supabase real-time subscriptions for live inventory sync. Implemented database-level multi-tenant isolation across all 4 core tables using Supabase Row-Level Security policies, keeping each pharmacy’s data fully separated rather than relying on application logic alone. Built and deployed Lucknowi (lucknowi.com), an e-commerce platform on a PHP/MySQL backend with 4 core modules (dynamic catalog, cart, secure session auth, and admin CMS); optimized SQL queries with indexing for faster page loads on 3G networks.

Gen AI Exchange Program

Google

Jan 2025 - Jan 2025

Selected into Google’s competitive GenAI program spanning 4 focus areas (prompt engineering, RAG patterns, evaluation techniques, and Vertex AI workflows); applied learnings directly into 2 shipped product features.

AI Developer Intern

CodSoft

Jan 2024 - Jan 2024

Built and shipped four AI products end-to-end: a rule-based NLP chatbot, a content recommendation engine, a real-time face-detection module (90%+ accuracy), and a Tic-Tac-Toe minimax engine. Wrote modular, well-documented Python with REST-style backends across all 4 deliverables; managed branch-based version control and per-project READMEs on GitHub for evaluator review. Iterated through a 3-stage delivery cycle (prototype → mentor feedback → polished demo) under sprint deadlines, practicing the delivery discipline used in production teams.

Education

Bachelor of Computer Applications (BCA) - Shri Ramswaroop Memorial University

2023 - 2026 · Afghanistan

Certifications

Runner-up, Hack-It-Out (Technex 2025, IIT BHU)

· 2025

Selected, Google Generative AI Exchange Program

Google · 2025

Smart India Hackathon (SIH) Participant

· 2024

AI/ML Training

RemarkSkill · 2024

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 10/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 7/15
💰 Rate 0/5
🏆 Certs 5/5
Verified 5/5
Total Score 87/100

Profile Overview

Member sinceAug 2026

Availability Details

Relocation

Open to Relocation

Skills (61)

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