AHMAD HAMEED

Full Stack Developer | MERN & NestJS | AI Integration

ahmadhameed5633@gmail.com+92 303 2228745Rahim Yar Khan, Pakistanlinkedin.com/in/ahmadhameed-dev github.com/Ahmad5633 ahmad-hameed.vercel.app

Professional Summary

Results-driven Full Stack Developer (MERN & NestJS) with 3+ years of experience building scalable, production-grade web applications across healthcare, fintech, SaaS, blockchain, and enterprise domains. Delivered 12+ projects (8 live in production) for clients across Pakistan, USA, and Netherlands. Expert in event-driven architectures (Redis Pub/Sub, BullMQ), real-time systems (WebSockets, WebRTC), Stripe payment integration, and cloud-native deployments (Docker, AWS). Successfully architected a 30GB+ database migration handling 2B+ records with zero data loss. Conducted full-stack security audits finding 50+ vulnerabilities across 4 codebases.

Core Competencies

Full-Stack Web Development

Stripe & Payment Systems

Real-Time Systems

Code Review & Security Audit

Database Migration & Design

CI/CD & Cloud Deployment

Microservice Architecture

Team Leadership & Mentoring

PWA & Mobile-First Apps

Technical Skills

Frontend:React.js, Next.js, TypeScript, Redux, Zustand, Tailwind CSS, MUI, Ant Design, Shadcn UI, Three.js

Backend:Node.js, NestJS, Express.js, GraphQL, REST APIs, WebSockets, WebRTC, JWT Auth

Databases:PostgreSQL, MongoDB, MySQL, Redis, TypeORM, Prisma, Mongoose, Knex

Messaging:Redis Pub/Sub, BullMQ, Socket.IO, SSE, Firebase Cloud Messaging (FCM)

Payments:Stripe (Subscriptions, Connect, Escrow, Team Billing, Proration, Webhooks)

DevOps:Docker, Docker Compose, AWS (EC2, S3, RDS, CloudFront), GitHub Actions, CI/CD, Nginx, PM2

AI/LLM:Groq API, Llama 3.3 70B, OpenAI, DeepSeek, streaming responses, conversational AI

Professional Experience

Senior Software Engineer

Oct 2025 - Present

VirtueNetz | Rahim Yar Khan, Pakistan

▶Architected 30GB+ database migration of 2B+ posts from MariaDB to PostgreSQL using 40+ resumable BullMQ workers with zero data loss
▶Built real-time chat system with DMs, read receipts, typing indicators using Socket.IO + Redis Pub/Sub
▶Implemented push notifications with Firebase Cloud Messaging (FCM) and two-layer RBAC with shadow bans, IP blocking
▶Managed 83 database migrations for PostgreSQL 17, built 2FA with TOTP + QR codes + backup codes

Senior Software Engineer

Dec 2024 - Sep 2025

Cure Logics | Rahim Yar Khan, Pakistan

▶Led development of Solana blockchain analytics tools with AI-powered whale transaction alert system
▶Designed Docker-based CI/CD pipelines using GitHub Actions, reducing release time by 40%
▶Mentored 4+ junior developers, improving team productivity and code quality
▶Integrated 5 APIs (Solscan, CoinGecko, LunarCrush, Twitter, DeepSeek) for real-time crypto insights

Software Engineer

2023 - Dec 2024

Mercury Sols | Rahim Yar Khan, Pakistan

▶Built real-time chat & video conferencing using WebSockets and WebRTC, boosting engagement by 30%
▶Automated workflows with Puppeteer for data scraping, saving 20+ hours/month in manual work
▶Built PAK HIMS hospital management system — 6 modules (OPD, IPD, Pathology, Appointments, Blood Bank, Admin) with microservice architecture

Freelance Full Stack Developer

Sep 2023 - Present

Upwork, Fiverr & Direct Clients | Remote (US, Netherlands, Pakistan)

▶Built 4-tier Stripe billing system for US SaaS client (Chordenet) — subscriptions, team seats, proration, discount codes, Chrome Extension + Outlook Add-in
▶Conducted security audit of 4 codebases for Kitchen Konnect — found 50+ vulnerabilities, delivered 12-category scoring and phased fix roadmaps
▶Built Pani Plus business management PWA — CRM, invoicing, payment tracking, delivery management, PDF invoices with WhatsApp sharing (Next.js, Prisma, PostgreSQL)
▶Developed Tubewell Pro water distribution system — 1000+ customers, usage tracking, analytics dashboards, PDF invoicing, Excel export

Key Projects

TrustBrig — Escrow Marketplace (USA)

NestJS, TypeScript, PostgreSQL, Buckzy (BaaS), Redis, Socket.io

Multi-currency escrow marketplace. Built escrow engine + money-safe payments layer (double-entry ledger, transactional outbox, idempotent webhooks, reconciliation), KYC, disputes, step-up auth.

knitWork — Real-Time Collaboration

Electron, NestJS, Next.js, Prisma, PostgreSQL, Yjs/Hocuspocus, Redis

Collaborative desktop app — Electron client, real-time collaborative editing (Yjs/Hocuspocus over WebSockets), NestJS auth microservice (Argon2, Google OAuth, JWT).

PakPassion — forum.pakpassion.com

Node.js, Express 5, PostgreSQL, Redis, BullMQ, Socket.IO, Knex

62K+ members, 162K+ threads. Migrated 2B+ records from XenForo to PostgreSQL. Real-time chat, FCM push, 2FA, 83 DB migrations.

Chordenet — chorde.net

NestJS, PostgreSQL, Stripe, Redis, Chrome Extension, Outlook Add-in

Voice email SaaS for US client. 4-tier Stripe billing, team seats, proration, lifetime discount codes, webhook-driven state.

Kitchen Konnect — thekitchenkonnect.com

Node.js, Express 5, Next.js 14/15, PostgreSQL, Redis, Stripe

Full-stack code review & security audit of 4 codebases. Found 50+ vulnerabilities, delivered 12-category scoring system.

Pani Plus — Private

Next.js 14, Prisma, PostgreSQL, NextAuth.js, PWA, jsPDF

Business management PWA — CRM, auto-invoicing, payment tracking, delivery routes, POS, WhatsApp sharing. 15 pages, 20 APIs.

COTD — cotd.ai

React.js, NestJS, Three.js, TradingView, Solana/Web3.js

Solana token analytics with AI whale alerts, custom ranking algorithm, 3D visuals + TradingView charts. 5 API integrations.

Tubewell Pro — tubewell-rp.vercel.app

Next.js, TypeScript, PostgreSQL, Prisma, NextAuth.js

Water distribution management — 1000+ customers, phone-based tracking, analytics dashboards, PDF invoicing, Excel export.

PAK HIMS — pakhims.com

NestJS, MongoDB, React.js, MUI, Microservices

Hospital management — OPD, IPD, Pathology, Appointments, Blood Bank, Admin. Automated PDF reports, role-based access.

AI Portfolio Chatbot — ahmad-hameed.vercel.app

Next.js 14, Groq API, Llama 3.3 70B, SSE, TypeScript

AI sales assistant with real-time streaming, multi-turn memory, keyword fallback, rate limiting, auto-linked URLs.

Education

Bachelor of Science in Computer Science

Islamia University of Bahawalpur, Pakistan

FYP: InternO — AI-powered internship platform with ML matching, WebRTC video interviews, Socket.io live chat. Won 1st position at KFUEIT Industrial Fair Expo 2024.