Required Skills: AI / Machine Learning Strong expertise in: NLP and large language models (LLMs) Retrieval-augmented generation (RAG) Model evaluation and benchmarking Familiarity with multimodal AI (text + image + layout) Tools & Frameworks Python ecosystem Experience with LLM orchestration or agent frameworks such as: LangChain, AWS Strands Vector databases (e.g., PG Vector, Pinecone) Document processing pipelines (OCR, PDF parsing tools) Systems & Infrastructure Cloud platforms (AWS, Google C