Mussab User

At Upwork, I take C#/.NET projects from requirements through deployment for overseas clients. I also added audio recording to a WPF emotion-detection app, using FFmpeg to capture and encode audio. At Xsicon, I built the ASP.NET Core Web API backend for a direct-to-consumer e-commerce platform, using Supabase (PostgreSQL) as the data layer. I designed the catalog, cart, checkout, and order schema and REST endpoints. At CareCloud, I built and maintained REST APIs for a healthcare microservices platform and worked on its Angular front end. I tuned SQL queries and caching to reduce average API response time from 450ms to around 200ms. At Multiways Technologies, I built ASP.NET Core APIs for client web and mobile apps and automated release workflows, reducing deployments from two hours of manual work to about 15 minutes. I also built a .NET 8 audio pipeline that uploads recordings in chunks, transcribes them in parallel, and serves playback over HLS.