I will build a full stack web application

S
shaheerhussain5
S
shaheerhussain5
Shaheer H
build a full stack web application
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build a full stack web application

About this gig

Need a full-stack web application built properly?

I develop clean, scalable apps using React, Node.js,

Express, and PostgreSQL from simple tools to

complete platforms.


I built an Event Management System across 2 Agile

sprints with secure auth, event lifecycle management,

attendee registration with capacity validation, and

Google Sheets attendance tracking validated with

27 test cases at 100% pass rate.


What I build:

- REST APIs with Node.js and Express

- React frontends with clean UI

- PostgreSQL database design and integration

- User authentication (JWT, sessions)

- Third-party API integrations

- Google Sheets / Drive integrations

- Admin dashboards and management panels


What you get:

- Clean, documented source code

- Responsive design (Standard+)

- Database setup and integration (Standard+)

- Full deployment (Premium)

- README with setup instructions


Message me before ordering to confirm your

requirements and the right package for your project.


Currently accepting new projects.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • Bootstrap
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • FastAPI
    • NestJS
    • Next.js
    • Node.js

  • AI & low/no code builders

    • Cursor
    • Replit

Get to know Shaheer H

Shaheer H

AI Engineer, RAG Systems, LLM FineTuning, LangChain Python

  • FromPakistan
  • Member sinceApr 2021
  • Avg. response time1 hour
  • Last delivery2 years

  • Languages

    Urdu, English
I build production-ready AI systems — RAG chatbots, fine-tuned LLMs, and intelligent Python applications. My recent work: → FinSight Pakistan: Hybrid-search RAG system over 916K words - 75.3% relevancy score → EdgeAlign: Full SFT → DPO fine-tuning pipeline on Qwen3-0.6B with LoRA adapters — +176% BLEU improvement What I deliver: - RAG chatbots over your documents (PDFs, reports, databases) - Custom LLM fine-tuning on your dataset - LangChain agents and AI pipelines - Full-stack AI web apps (React + Node.js + PostgreSQL) - Python ML scripts and automation

My Portfolio

Other Software Development Services I Offer

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