Salman A.

Python | Django | FastAPI | Async Python | OpenAI & Anthropic API Integration | LLM Cost & Observability | PostgreSQL I'm a backend engineer specializing in Django and FastAPI, with hands-on experience building AI/LLM integration layers using OpenAI and Anthropic APIs. What I build: I take AI powered products where API calls to OpenAI, Anthropic, or other providers are scattered across the codebase, and consolidate them into a single async router service with request level logging (token usage, latency, cost, success/failure), rule-based provider selection by task type and complexity, and admin level visibility into AI spend. I've also built backend automation with scheduled/background tasks (Celery, APScheduler) and transactional email logic. I refactor without breaking existing behavior, and I document the migration so your team can maintain it after I'm gone. Proof points: - Refactored a production AI platform's provider integrations (OpenAI, Anthropic) into a centralized async router with observability and rule-based routing — an ~4-month engagement, hired at senior level through an agency. - Built a FastAPI subscription management system with automated expiry logic and email alerts. - Stack: Django, FastAPI, PostgreSQL, MySQL, MongoDB, Docker, Git, LangChain, OAuth flows. Open to hourly or fixed-price backend and AI-integration engagements. Clear communication, realistic timelines, code your team can maintain long-term.