Lead AI/ML Engineer for developing scalable ML/LLM services and RAG pipelines at Vanguard. Collaborating with cross-functional teams and implementing responsible AI practices.
Responsibilities
Architect, build, and deploy RAG pipelines, including chunking, embeddings, vector stores, retrieval, ranking, grounding, and evaluation
Design and implement Graph RAG solutions leveraging knowledge graphs for multi‑hop reasoning and structured retrieval
Build robust, scalable ML/LLM services using Python (and Java where applicable) with well‑designed APIs and microservices
Develop data processing pipelines for ingestion, transformation, metadata extraction, and indexing
Implement observability, monitoring, evaluation harnesses, automated testing, and CI/CD for GenAI services
Optimize retrieval quality, response accuracy, latency, and cost across model + retrieval layers
Apply responsible AI, security, and governance practices for LLM systems (e.g., content filtering, guardrails, model monitoring)
Collaborate with product, data engineering, and cloud platform teams to translate business problems into robust AI solutions
Produce clear documentation, design specs, and operational runbooks for all delivered components
Requirements
3+ years of experience as an ML Engineer, AI Engineer, or similar role
Hands‑on experience building GenAI applications and RAG systems end‑to‑end
Strong proficiency in Python for ML/LLM development
Experience with vector databases (e.g., pgvector, Pinecone, Weaviate, FAISS) and embedding models
Knowledge of LLM frameworks (LangChain, LlamaIndex, Transformers, etc.)
Strong understanding of cloud environments (AWS/Azure) and containerized deployments
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