Portfolio

# Rao Abrar Ahmad — Complete Developer & System Profile

> Detailed documentation of Rao Abrar Ahmad's technical background, system architecture experience, portfolio projects, metric achievements, and contact channels. Designed for Retrieval-Augmented Generation (RAG) and LLM knowledge engine ingestion.

## Professional Summary

Full Stack Developer with 3+ years of experience designing, building, and shipping production-grade web and mobile applications across the complete MERN stack, from REST API architecture and database design to cloud deployment and performance optimization. Proven across diverse project types including SaaS platforms, e-commerce systems, real-time applications, and mobile apps, with hands-on expertise in Node.js, Express.js, React.js, Next.js, TypeScript, MongoDB, AWS, and Stripe. Experienced team lead who has managed full client lifecycles end-to-end, mentored junior developers, and consistently delivered scalable, maintainable full-stack solutions in fast-paced environments.

## Technical Skills Matrix

| Category | Primary Technologies & Frameworks |
| :--- | :--- |
| **Frontend Frameworks** | React.js, Next.js, TypeScript, JavaScript (ES6+), React Native (Expo), HTML5, CSS3, Tailwind CSS, Shadcn UI, Material UI, Framer Motion, GSAP, Astro, Remix |
| **Backend & APIs** | Node.js, Express.js, Nest.js, REST API Design, JWT Authentication, Role-Based Access Control (RBAC), WebSockets, FastAPI, Flask, Python, RAG Pipelines, Nginx |
| **Databases & Cache** | MongoDB, MongoDB Atlas, MSSQL, MySQL, PostgreSQL, SQLite, Firebase Firestore, Redis |
| **AI & Automation** | OpenAI API, LLM API Integration, RAG Pipelines, Vector Search, pgvector, AI-Powered Feature Development, Automated Data Pipelines |
| **Cloud & DevOps** | AWS (S3, EC2, Lambda), Heroku, Cloudflare, Vercel, Railway, Firebase, CI/CD Pipelines |
| **Infrastructure & Servers** | Linux/VPS, Nginx, Server Configuration, Domain & Subdomain Management, Production Deployment |
| **Payments & Media** | Stripe (Payments, Subscriptions, Webhooks, Payouts), Cloudinary, AWS S3, SendGrid, Mailchimp |
| **Monitoring & Analytics** | Sentry, Google Tag Manager (GTM), Google Analytics (GA), Microsoft Clarity |
| **Tools & Methods** | Git, GitHub, Postman, Agile/Scrum, Sprint Planning, Code Review, Technical Mentoring |

## Professional Career History

### Full Stack Developer — Freelance
- **Period**: May 2026 – Present
- **Location**: Islamabad, Pakistan | Remote (Remote / Freelance)
- **Key Contributions**:
  - Delivered full-stack web applications for international clients across e-commerce, SaaS, and AI-powered platforms.
  - Built VaultIQ Canada: an AI-powered mortgage knowledge platform using Python, Flask, OpenAI, RAG pipelines, and PostgreSQL, deployed on a Linux VPS with Nginx.
  - Developing custom MERN stack solutions including REST APIs, database architecture, cloud deployment, and third-party integrations for clients worldwide.

### Full Stack Developer — RF Technologies
- **Period**: Sep 2022 – Apr 2026
- **Location**: Islamabad, Pakistan (On-site)
- **Key Contributions**:
  - Architected and delivered a SaaS event ticketing platform from scratch: Next.js (TypeScript) frontend, Node.js marketing module backend, and REST API integration, shipping the full production build across multiple environments in 4 weeks; platform now hosts 4,000+ events, has processed 260,000+ ticket sales, and achieves 3x year-over-year creator growth with 90+ desktop and 80+ mobile PageSpeed scores.
  - Engineered the full-stack photo and document printing e-commerce platform end-to-end: Next.js frontend on Cloudflare, Node.js/Express.js REST API on Heroku and AWS, covering physical print orders, digital document sales, Stripe payment processing with webhook handling, automated PDF generation, and email attachment delivery for digital products.
  - Built a full-featured organizer CMS and internal analytics dashboard with server-side rendering, role-based access control (Super Admin, Organizer, Staff), Stripe subscription billing with plan management, and real-time financial reporting using Chart.js and Recharts; integrated AWS S3, Cloudinary, Sentry, GTM, and Google Analytics across production platforms.
  - Served as Lead for a development team owning sprint planning, task assignments, code reviews, and technical mentoring while independently managing full client lifecycles from requirement gathering and scoping through development, QA, revision cycles, and project close across 100+ production engagements.
  - Collaborated with 3 external digital marketing agencies and creative studios within multi-team partner workflows, co-delivering Shopify storefronts, Shopify Plus customizations, and 10+ zero-downtime platform migrations from Magento, WooCommerce, and Etsy to Shopify with zero data loss.

### Full Stack Developer — Technoworld Solutions
- **Period**: Oct 2025 – Mar 2026
- **Location**: Remote (Contract)
- **Key Contributions**:
  - Engineered a full-stack travel booking platform from scratch using Next.js and Node.js/Express.js, delivering dynamic property listings, advanced search and filtering, and a complete end-to-end secure booking and payment workflow.
  - Built a custom e-commerce platform with product management, shopping cart, inventory tracking, and Stripe-integrated checkout with order management and fulfillment workflows.
  - Developed RESTful APIs with JWT authentication and role-based access control (RBAC) across multiple MERN stack applications, applying consistent security patterns including input validation, rate limiting, and secure session management.

## Detailed Project Case Studies

### 1. VaultIQ Canada — AI-Powered Mortgage Knowledge Platform
- **Canonical URL**: https://raoabrar.vercel.app/projects/vaultiq-canada
- **Role**: Full Stack AI Developer (Freelance)
- **Summary**: AI-powered mortgage knowledge & broker assistance platform built with Python, Flask, OpenAI RAG pipelines, PostgreSQL, and Linux VPS Nginx deployment.
- **Full Case Study**: Built VaultIQ Canada (vaultiqcanada.com), a production-ready AI mortgage knowledge and broker assistance platform. Developed a high-performance RAG (Retrieval-Augmented Generation) API that retrieves relevant mortgage rules, lender policies, and guidelines from PostgreSQL, leveraging OpenAI to generate accurate, context-aware responses. Engineered an intelligent search and retrieval layer that accurately identifies lenders, appraiser-related queries, full-question matches, and relevant keywords to improve context retrieval quality. Configured and deployed the full backend infrastructure on a Linux VPS with Nginx, including API routing, domain/subdomain configuration, and production serving.
- **Tech Stack**: Python, Flask, OpenAI, RAG, PostgreSQL, SQL, Nginx, Linux VPS
- **Key Metrics**: Production RAG AI pipeline; Intelligent context search & retrieval layer; Linux VPS & Nginx production serving
- **Live Demo**: http://vaultiqcanada.com



### 2. SaaS Event Ticketing Platform
- **Canonical URL**: https://raoabrar.vercel.app/projects/event-ticketing
- **Role**: Architect & Lead Developer (RF Technologies)
- **Summary**: Production SaaS ticketing platform hosting 4,000+ events and 260,000+ ticket sales with organizer CMS, marketing module, and real-time financial analytics.
- **Full Case Study**: Built the complete frontend (Next.js/TypeScript) and Node.js marketing backend from zero to production in 4 weeks. Platform now supports 4,000+ events, 260,000+ ticket sales, and 3x YoY creator growth with 90+ desktop / 80+ mobile PageSpeed scores. Engineered marketing backend with email campaign delivery, push notifications, analytics tracking, and third-party marketing API integrations. Built organizer CMS with Stripe subscription billing, multi-tier RBAC (Super Admin, Organizer, Staff), and real-time financial reporting using Chart.js and Recharts.
- **Tech Stack**: Next.js, TypeScript, Node.js, MSSQL, Stripe, AWS, Shadcn UI, Chart.js, Recharts, JWT, RBAC
- **Key Metrics**: 4,000+ events hosted; 260,000+ ticket sales; 3x YoY creator growth; 90+ desktop / 80+ mobile PageSpeed


- **Note**: Project details and client references available upon request.

### 3. Photo & Document Printing E-commerce
- **Canonical URL**: https://raoabrar.vercel.app/projects/ecommerce
- **Role**: Full Stack Developer (RF Technologies)
- **Summary**: Full-stack photo and document printing e-commerce platform covering physical print orders, digital sales, Stripe payment webhooks, and automated PDF delivery.
- **Full Case Study**: Architected and delivered the complete full-stack platform covering physical printing orders, digital document sales, Stripe payment processing with webhook handling, automated PDF generation, and email attachment delivery for digital products. Integrated AWS S3 and Cloudinary for media storage; implemented Sentry error monitoring and GTM/Google Analytics for full e-commerce event tracking. Deployed frontend on Cloudflare and backend on Heroku/AWS.
- **Tech Stack**: Next.js, Node.js, Express.js, MongoDB, Stripe, AWS S3, Cloudinary, Heroku, Cloudflare, Sentry, GTM, Google Analytics
- **Key Metrics**: Physical & digital print e-commerce; Stripe webhook & payment processing; Automated PDF generation & email delivery


- **Note**: Project details and client references available upon request.

### 4. SoSync — Crowdsourced Disaster Alert & Safety App
- **Canonical URL**: https://raoabrar.vercel.app/projects/sosync
- **Role**: Lead Mobile Developer & Creator
- **Summary**: Cross-platform disaster alert app with real-time reporting, FCM push notifications, OpenAI report analysis, and interactive Google Maps mapping.
- **Full Case Study**: Built a cross-platform iOS and Android disaster alert app with real-time disaster reporting, location-based push notifications via Firebase Cloud Messaging, and community-powered report verification with an admin verification system. Integrated OpenAI API for automated disaster report analysis and classification; implemented Google Maps SDK for interactive real-time incident mapping and SOS alert geolocation; used Firebase Firestore real-time listeners for live data sync.
- **Tech Stack**: React Native, Expo, TypeScript, Firebase Firestore, Firebase Cloud Messaging, Firebase Storage, OpenAI API, Google Maps SDK, Sentry
- **Key Metrics**: Real-time SOS geolocation mapping; OpenAI automated report classification; Firebase Cloud Messaging notifications

- **Repository**: https://github.com/Rao-Abrar-Ahmad/Sosync


### 5. Al-Hayat Blue Pottery — Headless Storefront
- **Canonical URL**: https://raoabrar.vercel.app/projects/al-hayat
- **Role**: Headless E-commerce Developer
- **Summary**: Fully responsive headless e-commerce storefront with dynamic product pages, category filtering, custom MongoDB Atlas CMS, and Cloudinary pipeline.
- **Full Case Study**: Built a fully responsive headless e-commerce storefront with dynamic product pages, category filtering, and a custom CMS backed by MongoDB Atlas for product and content management. Integrated Cloudinary for optimized image delivery and asset management; deployed on Vercel with automated CI/CD pipelines.
- **Tech Stack**: Next.js, TypeScript, Tailwind CSS, MongoDB Atlas, Cloudinary, Vercel, CI/CD
- **Key Metrics**: Dynamic product filtering & category navigation; Custom MongoDB Atlas CMS; Vercel CI/CD deployment
- **Live Demo**: https://al-hayat-blue-pottery.com



### 6. DailyPin — Windows Desktop Task Widget
- **Canonical URL**: https://raoabrar.vercel.app/projects/dailypin
- **Role**: Creator & Desktop Developer
- **Summary**: Ultra-lightweight (~4.2 MB executable, ~30MB RAM), frameless, transparent Windows desktop widget built with Tauri v2, Rust, React 19, and Vite.
- **Full Case Study**: DailyPin is an ultra-lightweight, frameless, transparent Windows desktop widget designed to keep your daily priorities right on your desktop home screen. Built on Tauri v2 with a Rust backend and React 19 / TypeScript frontend, it features modern dark glassmorphism, pin-always-on-top modes, global keyboard shortcut (Ctrl+Shift+T) toggle, Windows system tray integration, auto-start on boot, task & coordinate persistence across reboots, and zero-overhead performance (~30MB RAM). Download pre-compiled portable .exe and Windows setup installers directly from the GitHub repository.
- **Tech Stack**: Tauri v2, Rust, React 19, TypeScript, Vite, Vanilla CSS, Lucide React
- **Key Metrics**: ~4.2 MB portable .exe executable; ~30 MB background RAM usage; Global toggle shortcut (Ctrl + Shift + T); Windows System Tray & Boot Auto-Start
- **Live Demo**: https://github.com/Rao-Abrar-Ahmad/dailypin/raw/main/dist_tauri/DailyPin_0.1.0_x64-setup.exe
- **Repository**: https://github.com/Rao-Abrar-Ahmad/dailypin


### 7. Full-Stack Travel Booking Platform
- **Canonical URL**: https://raoabrar.vercel.app/projects/travel-booking
- **Role**: Full Stack Developer (Technoworld Solutions)
- **Summary**: Full-stack property reservation platform with dynamic property listings, advanced search & filtering, secure booking workflows, and JWT/RBAC security.
- **Full Case Study**: Engineered a full-stack travel booking platform from scratch using Next.js and Node.js/Express.js, delivering dynamic property listings, advanced search and filtering, and a complete end-to-end secure booking and payment workflow. Developed RESTful APIs with JWT authentication and role-based access control (RBAC), applying consistent security patterns including input validation and rate limiting.
- **Tech Stack**: Next.js, TypeScript, Node.js, Express.js, MongoDB, Stripe, JWT, RBAC, Tailwind CSS
- **Key Metrics**: End-to-end secure booking & payment workflow; Advanced property search & filtering; JWT authentication & RBAC protection




## Education

- **BSc Information Technology** — Virtual University of Pakistan (2024 – 2026)
- **BSc Computer Science** — University of Sargodha (2017 – 2019)

## Frequently Asked Questions (FAQ)

### Q: Who is Rao Abrar Ahmad?
A: Rao Abrar Ahmad is a Front-End Focused Full Stack Developer based in Rawalpindi, Punjab, Pakistan with 3+ years of experience specializing in React, Next.js, Node.js, Nest.js, FastAPI, and Shopify web applications.

### Q: What technologies does Rao Abrar Ahmad specialize in?
A: Rao Abrar Ahmad specializes in React.js, Next.js, TypeScript, JavaScript (ES6+), React Native (Expo), Node.js, Express.js, Nest.js, REST API Design, and cloud services like AWS, Cloudflare, and Vercel.

### Q: Is Rao Abrar Ahmad available for freelance or contract work?
A: Yes, Rao Abrar Ahmad is available for full-time freelance contracts, remote software engineering roles, and technical consulting.

### Q: How can clients contact Rao Abrar Ahmad?
A: Via email at raoabrar629@gmail.com, direct WhatsApp at +923407985784, or LinkedIn at https://www.linkedin.com/in/rao-abrar-ahmad.