Mohamed O.

I fix bugs fast and build things that work. Backend broken? Database slow? App crashing? Server down? Send me the details — I'll diagnose it and give you a clear plan within hours. What I deliver: → Bug Fixing — fast diagnosis, fast turnaround, across any stack I know → Laravel & PHP — APIs, performance optimization, N+1 fixes, full backend systems → Python & Django — automation, backend services, scripting, data processing → Android Apps — Kotlin, Java, Firebase, Room DB, Play Store publishing → MySQL & Databases — query optimization, ClickHouse, schema design, migration → DevOps & Linux — server setup, hardening, Docker, Ansible, Nginx, CI/CD 9+ years building and maintaining production systems at scale. RHCE, RHCA, CCNA certified. I've managed infrastructure serving 50,000+ concurrent users and built data pipelines processing millions of records