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Usama User

@usamauser4

Message

I build multilingual web products and optimize e-commerce marketplace operations.

Pakistan

Message

I've independently designed, built, and shipped four working products across billing software, AI-assisted legal tech, SaaS tooling, and browser gaming.

As a freelance front-end developer, I built MeraBill’s multilingual point-of-sale interface, Pakistan Law Assistant’s seven-language AI chat experience, ResumeForge Pro’s architecture for 20+ resume templates, and the HTML5 Canvas game Zombie Dash.

I also manage seller and vendor operations across Walmart, eBay, Amazon Vendor Central, Back Market, Best Buy, and Rebello, maintaining 100% on-time delivery, a 0% cancellation rate, and eBay Top Rated seller status.

Experience

Work history, roles, and key accomplishments

Front-End Developer

Freelancer

Jun 2023 - Aug 2026 (3 years 2 months)

Built the full interface for MeraBill, a point-of-sale billing app, including an instant-search product catalog, a cart-style bill builder, and a print-optimized receipt layout across English, Urdu, and Punjabi. Developed the front end for Pakistan Law Assistant, a 7-language AI chat application, including OTP-verified onboarding, voice input, file/image attachments, and a language-switching syste

JavaScript TypeScript React Next.js Tailwind Framer Motion HTML5 Canvas Git REST APIs

E-Commerce Specialist

Jun 2023 - Aug 2026 (3 years 2 months)

Managed seller and vendor accounts across Walmart Marketplace, eBay, Amazon Vendor Central, Back Market, Best Buy Marketplace, and Rebello, coordinating day-to-day order, inventory, and purchase order operations through SellerCloud. Maintained 100% on-time delivery and a 0% cancellation rate on Walmart Marketplace while holding Top Rated seller status on eBay with 99.7% positive feedback.