Looking for a job

Cherupally Sai

@cherupallysai

Message

I build production LLM, RAG, and multi-agent systems for fraud investigation and autonomous workflows.

South Africa

Message

What I'm looking for

I'm looking to build and operate production AI systems where LLM agents, RAG, machine learning, and reliable backend services solve recurring real-world workflows.

At First National Bank, I built an LLM-powered agentic reasoning layer for fraud investigations, combining tool calling, RAG evidence retrieval, structured case summaries, guardrails, and observability for analysts’ daily workflows. I also developed SIM-swap and account-takeover detection models and owned MLOps across MLflow, Git, GCP Vertex AI Pipelines, and Azure ML.

I build production AI products end to end, including Autopilot, a multi-agent job-application platform that runs daily for real users, Nexus, a RAG knowledge platform with 95%+ retrieval relevance, and JobEasy, a full-stack AI hiring SaaS. My work spans Python services, FastAPI APIs, retrieval systems, vector databases, agent orchestration, machine learning, and computer vision.

Experience

Work history, roles, and key accomplishments

Current

AI Engineer

Current

First National Bank (FNB) South Africa, FirstRand Group

Jul 2023 - Present (3 years 1 month)

Designed and deployed an LLM-powered agentic reasoning layer for fraud investigation, including a RAG pipeline and guardrails. Built fraud detection models and document-understanding pipelines, and owned MLOps end to end.

LLM RAG Agentic AI Tool calling ChromaDB XGBoost OCR Vision Language Models MLFlow Azure ML CI CD Python fastAPI

Machine Learning Intern

Intel Unnati Industry Training Programme, Intel Corporation

May 2023 - Jul 2023 (2 months)

Executed the full ML lifecycle on a fake-news classification system, including EDA, NLP preprocessing, model training, and deployment. Benchmarked multiple models and shipped an interactive Streamlit app.

Python NLP TF IDF Logistic Regression Naïve Bayes SVM Streamlit Git