// work
I build and architect scalable web applications, SaaS platforms, APIs, AI solutions, business automation systems, and cloud infrastructure for startups, agencies, and established businesses.
agency: Quest BDC· verified Upwork freelancer
100%
Job Success
4.8 ★
Rating
46
Reviews
57
Jobs
1,300+
Hours
27
Portfolio
// notice Set UPWORK_ACCESS_TOKEN (and optional UPWORK_TENANT_ID) to sync portfolio from Upwork GraphQL API, or run npm run sync:upwork.
Migrated a WordPress Multisite network with ~350 sites from DigitalOcean to AWS, including load balancing, Cloudflare integration, and zero-downtime migration strategy.
Full-stack Laravel development for an anime video-on-demand platform — API design, backend architecture, and application features.
Built a unified REST API allowing partners to use Stellar blockchain tokens via USSD channels — API fusion, Node.js integration, and Postman-tested endpoints.
Deployed a production PHP API on Linux VPS with Apache configuration, Ubuntu server hardening, and DigitalOcean infrastructure setup.
Built a Windows client-server application in Python with MySQL backend — desktop installer, application packaging, and server communication.
Built a WordPress/WooCommerce e-commerce website supporting both English and Japanese locales.
★★★★★“Great collaboration”
★★★★★“Great Experience working with Karim”
★★★★★“Karim is a really great guy and has become a trusted friend. He has done a really great job on this contract. Thank you. 6 stars !!!”
★★★★★“He did amazing work! Completed my project fast and was very easy to work with. He is an expert.”
cached · run npm run sync:upwork to refresh
Analytics dashboard for Facebook ads performance and revenue tracking.
Interactive card game web application.
Property layout and real estate presentation site.
Bangladesh land unit conversion and Islamic inheritance calculation web app.
Community website for Brisbane Social Chess — events, membership, and chess community engagement.
Anime VOD web application built with PHP/Laravel stack.
Task management app using Filament, Laravel, Livewire, and MySQL for small teams.
Complete task management system with Laravel — assignments, sharing, and team workflows.
Curated resources and tools for social chess communities.