Wajahat A.

I build backend systems that handle real load, real money, and real compliance requirements. From payment systems processing $250K+/month to HIPAA/GDPR-compliant SaaS platforms, I focus on reliability, security, and performance. What I do: Design and build REST APIs with Django REST Framework and FastAPI that hold up under load PostgreSQL optimization, Redis caching (cut latency 40% on a live financial platform) JWT and OAuth2 for systems where getting auth wrong has compliance consequences Kubernetes deployments on GCP, CI/CD pipelines that cut release cycles from 2 weeks to 2 days Lead small engineering teams while staying hands-on with the code All 6 Upwork contracts ended with 5.0 reviews and repeat clients. I communicate clearly, don't disappear mid-project, and take ownership of what I build. If you need someone to design the system, build it, and make sure it scales — let's talk.