Mahek Imtiyaz
Backend Engineer with AI infrastructure.
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AI-Powered Document API (RAG) — deployed on Render
FastAPI, PostgreSQL, OpenAI API, React, Docker, GitHub Actions
• Built a RAG backend: PDF ingestion, overlapping chunking, embedding-based retrieval, and OpenAI answers grounded in retrieved chunks, behind JWT auth with response caching.
• Debugged a chain of Render build and runtime failures (memory limits, dependency conflicts, ephemeral disk) and replaced a local FAISS index with PostgreSQL-stored embeddings and NumPy cosine similarity.
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Atlas — visual product-map interface for codebases
React, Vite, TypeScript, Tailwind CSS, Zustand, React Flow, pdf-lib Live · GitHub
• Built a client-side tool that turns a GitHub repo into an interactive product graph (features, pages, APIs, services, data, external dependencies), with node selection, flow tracing, and complexity/history views via React Flow.
• Added a GitHub-import flow that fetches repository metadata and analyzes structure in-browser, a JSON graph upload path, and a client-side PDF export (pdf-lib) with no backend or database required
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