Afraz Khan

AI Engineer

NextGen Professional • Fulltime

Jun 2025 - Present • 1 yr 5 mos

AI Engineer — AI Agents, RAG & Document AI Ship production-ready AI agents, multi-agent systems and RAG chatbots that automate real backend processes — document review, support, lead handling and internal ops. Build retrieval-augmented generation assistants over PDFs, docs and databases using hybrid GraphRAG (Neo4j) + vector search (Pinecone, FAISS, Weaviate) with strict guardrails. Tech: LangChain, LangGraph, CrewAI, OpenAI, Claude, OCR, Document AI, computer vision, Python, FastAPI, Docker, AWS, GCP. Fast delivery, clean documented code, scalable architecture.

AI Engineer

Upwork • Parttime

Jul 2023 - Present • 3 yrs 4 mos

Develop custom AI agents, RAG assistants, and OCR/document-processing pipelines for business workflows. Delivered tax-statement extraction, OCR table recognition, identity verification, production retrieval work, and an entity-resolution and RAG architecture audit. Build with Python, LangGraph, LangChain, FastAPI, PaddleOCR, and vector databases, with clear scope, validation, documented code, and practical handover.

AI Engineer

ACE Money Transfer • Fulltime

May 2024 - Feb 2025 • 9 mos

At Ace Money Transfer, I designed and implemented machine learning models that provided actionable insights for critical financial operations. My responsibilities included architecting robust data preprocessing pipelines capable of handling large-scale and complex financial transaction datasets. I played a key role in driving cross-functional collaboration to ensure that AI solutions were aligned with the company’s strategic business goals. I also focused on optimizing model performance through rigorous testing and continuous refinement. Additionally, I contributed to the development of AI-driven systems that significantly enhanced operational efficiency and data-driven decision-making across the organization.