MTS-1 Machine Learning Engineer · PayPal
Bangalore, India
- Led architecture and 0-to-1 delivery of the KYC Ops Assistant, a production agentic AI service (LangGraph, CrewAI) on a fintech compliance surface, defining the orchestration layer for models, tools, memory, and decision-making. Doubled KYC conversions in 3 months.
- Designed the RAG pipeline (chunking, embeddings, vector retrieval, hybrid search, re-ranking, citation enforcement) and integrated multiple MCP tools, exposing internal services as guarded, schema-validated agent tools.
- Building an internal LLM evaluation and observability platform used across DS and ML teams: agent evals, regression harnesses, LLM-as-judge, guardrails, and offline plus online evaluation tied to quality, latency, hallucination, and cost.
- Fine-tuning LLMs as digital agents (Venmo) using SFT and RLHF (PPO, GRPO) on multi-GPU clusters, owning training, evaluation, monitoring, and production rollout.
- LangGraph
- CrewAI
- RAG
- MCP
- SFT
- RLHF
- PyTorch
- LLM-as-judge