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ghafar_dev

Abdul G

@ghafar_dev

I provide AI powered full stack apps, mobile apps and websites

Pakistan
Hindi, Urdu, English
About me
I’m a Senior Full Stack & Mobile App Engineer with a track record of building production systems used by millions. With 10M+ downloads delivered, I specialize in production-grade applications that handle real users, payments, and complexity. My expertise includes React, Node, Kotlin, Stripe, and AI Engineering like LLM-powered chat, RAG workflows and Agentic AI. I prioritize product thinking, focusing on clean architecture and business goals rather than just writing code. I build reliable, secure systems designed to scale from day one. Let’s build something solid.... Read more

Skills

g
ghafar_dev
Abdul G
Offline • 
Average response time: 1 hour

See my services

Android App Development
I will build a native android app with kotlin and ai
From$100 / projectMore details
Full Stack Web Applications
I will build a full stack web app with react, nodejs and ai features
From$80 / projectMore details

Portfolio

Work experience

Fiverr

Full Stack Development

Fiverr • Freelance

Nov 2023 - Present • 2 yrs 6 mos

Advanced Security Architecture: Eliminated XSS and token theft risks by engineering "Zero-Storage" frontend models using OAuth, JWT rotation, HttpOnly cookies, and silent refresh mechanisms. High-Performance Real-Time Systems: Developed high-concurrency synchronization for live inventory and data feeds using Socket.io with Redis-backed adapters for sub-second consistency. Reliable Logic Design: Prevented data corruption and invalid user flows by implementing Finite State Machines (FSM) to manage complex, multi-step transaction lifecycles and "wizard" interfaces. Hardened Backend Infrastructure: Handled system resilience and data integrity through the use of idempotency keys, NoSQL sanitization, and exponential backoff for robust error handling. Scalable DevOps & Deployment: Optimized application performance and deployment workflows using Docker Compose, Nginx reverse proxies, and Bull job queues for efficient background processing.

Mobile Application Engineer

MetaFront LLC • Full-time

Mar 2024 - Oct 2024 • 7 mos

Developed enterprise-grade native Android PoC applications with clean, modular architecture for enterprise clients. Pair-programmed in a hybrid team environment, maintaining 100% code review coverage and code quality standards. Contributed full-stack API integration work alongside core Android development responsibilities.

Android Developer — Technical Lead

Grape Technologies Pvt. Ltd • Full-time

Nov 2020 - Dec 2023 • 3 yrs 1 mo

Led a cross-functional team of engineers across mobile and backend integration workstreams, conducting code reviews and mentoring junior developers. Shipped and maintained a portfolio of Android applications accumulating 10M+ combined Play Store downloads. Architected and integrated REST APIs, AI/LLM models, and real-time Firebase databases using Clean Architecture principles. Designed and implemented complex Ad Mediation and In-App Purchase monetization strategies that significantly increased revenue.