Tanzeel ur rehman KhawaJa

-Led a frontend team of 3 developers within an 11 person cross functional team by owning frontend architecture and daily delivery. -Shipped a production social media platform with real time chat and posts by architecting a full MERN stack and Socket.io layer. -Engineered multi role REST APIs covering the complete order lifecycle and integrated Stripe for secure payments. -Hardened security across 3 production apps by implementing JWT authentication and granular role based access control.

-Unified operations across 9+ retail brands serving 300K+ active customers by engineering multi store commerce infrastructure. -Built and shipped a production Remix based Shopify app extending custom capabilities across the brand portfolio. -Replaced manual stock tracking entirely by integrating third party APIs like Zapier and Klaviyo into a centralized backend. -Boosted website SEO score by 43% on Google PageSpeed and automated build, deploy, and rollback workflows using Vercel

-Made 24K+ publications and 50K+ records across 24 schools searchable by building an automated API ingestion pipeline. -Unified records for 2K+ faculty experts from 30+ academic sources by designing JSON Schema validation and ERP sync logic. -Reduced API response times by 98.9% for large university schools by introducing parallel query execution. -Co invented a certified patent for the collaboration portal officially registered with the IPO Pakistan Copyright Office.