Muhammad Tahir S.

Python AI Engineer | Top Rated Plus | $700K+ Earned | 200+ Jobs | 100% Job Success I build AI agents, data pipelines and SaaS backends that run reliably in production. Former Data Engineer at Google, with 7+ years and 200+ Upwork projects for startups, sports organisations and enterprise teams. SELECTED WORK AI Agents & LLM Apps • LangGraph AI agents for a global tech company that crawl phone retailers' websites and calculate how much on-page space the client's phones capture versus competitors. • FastAPI + Gemini AI assistant that helps teams write creative briefs through chat, scores each brief, exports it to Google Docs and syncs it to Smartsheet. Secure Google sign-in, Firestore, hosted on App Engine. Data Engineering & Web Crawling • Market-data pipeline for a global tech company pulling from Stackline, Similarweb and other sources, orchestrated with Cloud Run, Cloud Tasks and Cloud Scheduler. • Python ETL pipelines syncing a professional basketball club's ticketing, fan-app and junior-academy CRM data into a Supabase (Postgres) warehouse for analytics, running as scheduled services on Railway. SaaS & Backend Systems • Multi-tenant SaaS backend for a fitness franchise: scheduling, member engagement, messaging and analytics across many locations, integrated with Acuity, JustCall, GoHighLevel and iGoFigure, plus an AI/MCP interface. • Ticket referral backend for a sports club: ingests Mention Me webhooks, checks every referral against live ticket sales each hour, and manages a stock of single-use promo codes through the arena's ticketing API. Built so a reward can never be sent twice and production data is never written to. • Internal Next.js + Firestore portal where staff request event tickets and a rules-based allocation engine ranks competing requests automatically. TECH I WORK WITH Python, FastAPI, Django, Node.js, Next.js, React · LangChain, LangGraph, OpenAI, Claude, Gemini, RAG, MCP · Airflow, dbt, BigQuery, Postgres, Supabase, Firestore · Scrapy, Playwright · AWS, Google Cloud, Docker, CI/CD WHY CLIENTS REHIRE ME • Production-safe engineering: idempotent jobs, read-only access where it matters, no surprises in live systems • Clear, fast communication in fluent English • Documentation your team can maintain • Business goal first, technology second Send me a message with what you're building. I'll reply with a clear plan, timeline and next steps.