Abdullah T.

I'm a full-stack and AI engineer who ships production LLM applications, React/Next.js front ends, Node.js and Python/FastAPI back ends, and AI systems built to survive real users, not just demo well. I currently build an AI-powered learning platform serving 45,000+ users, and I've shipped RAG pipelines, LLM evaluation systems, and multi-provider AI architectures end to end. Most "AI developers" can wire up an OpenAI call. The hard part is everything after: keeping costs sane, handling provider outages, validating model output, and not breaking production when the model has a bad day. That's the part I'm good at. Recent work: • Built an LLM-as-judge evaluation system with strict JSON-schema validation and a full test matrix so AI output is verified, not hoped for • Designed a speech/LLM layer that routes across five providers with automatic fallback and per-call cost logging no single point of failure, no runaway bills • Replaced brittle string-matching with GPT-based semantic evaluation for a live learning activity used at scale • Made models provider-agnostic (swap OpenAI ↔ Anthropic ↔ others without rewriting the app) Full-stack, end to end: I've taken products from empty repo to production; a medical exam-prep platform (Next.js + FastAPI + PostgreSQL), an AI phone-calling agent platform, a marketplace app shipped in under two months, and an open-source Windows tool that's live and MIT-licensed. I handle the front end, the API, the database, the AI layer, and the deploy. What I get hired for: • LLM & AI apps — RAG, agents, chatbots, semantic search, structured output, evals • Full-stack builds — React / Next.js / TypeScript front ends, Node.js & Python/FastAPI back ends • AI integration into existing products — OpenAI, Anthropic, LangChain, multi-provider setups • Databases & backend — PostgreSQL, API design, auth, real-time sync • Rescue work — inherited codebases, broken AI features, "it works locally but not in prod" I've got a CS degree from FAST-NUCES and a research internship background, I use version control like an expert, and I'll give you a real timeline instead of a flattering one. Got something to build, finish, or fix? Message me! I usually reply within a few minutes