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I am a data scientist and AI/ML engineer with 15 years in information technology, specializing in GenAI, agentic AI, ML, DL, NLP, data engineering, and cloud platforms. I build and deploy end-to-end AI solutions, including LLM-wrapped multi-agent systems, Conversational RAG chatbots, vector databases, fine-tuned models, and ML Ops workflows using LangChain, HuggingFace, TensorFlow, and PyTorch. I lead cross-functional teams across the US and Singapore, delivering predictive models and AI-enabled solutions for financial services, telecom analytics, and consumer products. I enjoy turning data into scalable, production-ready capabilities, mentoring teammates, and collaborating with product and platform teams to drive end-to-end data acquisition, modeling, deployment, and governance.…I am a data scientist and AI/ML engineer with 15 years in information technology, specializing in GenAI, agentic AI, ML, DL, NLP, data engineering, and cloud platforms. I build and deploy end-to-end AI solutions, including LLM-wrapped multi-agent systems, Conversational RAG chatbots, vector databases, fine-tuned models, and ML Ops workflows using LangChain, HuggingFace, TensorFlow, and PyTorch. I lead cross-functional teams across the US and Singapore, delivering predictive models and AI-enabled solutions for financial services, telecom analytics, and consumer products. I enjoy turning data into scalable, production-ready capabilities, mentoring teammates, and collaborating with product and platform teams to drive end-to-end data acquisition, modeling, deployment, and governance.

Ratna Bachu

Data Scientist, AI Engineer, Full Stack Developer, +1

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I am a data scientist and AI/ML engineer with 15 years in information technology, specializing in GenAI, agentic AI, ML, DL, NLP, data engineering, and cloud platforms. I build and deploy end-to-end AI solutions, including LLM-wrapped multi-agent systems, Conversational RAG chatbots, vector databases, fine-tuned models, and ML Ops workflows using LangChain, HuggingFace, TensorFlow, and PyTorch. I lead cross-functional teams across the US and Singapore, delivering predictive models and AI-enabled solutions for financial services, telecom analytics, and consumer products. I enjoy turning data into scalable, production-ready capabilities, mentoring teammates, and collaborating with product and platform teams to drive end-to-end data acquisition, modeling, deployment, and governance.…I am a data scientist and AI/ML engineer with 15 years in information technology, specializing in GenAI, agentic AI, ML, DL, NLP, data engineering, and cloud platforms. I build and deploy end-to-end AI solutions, including LLM-wrapped multi-agent systems, Conversational RAG chatbots, vector databases, fine-tuned models, and ML Ops workflows using LangChain, HuggingFace, TensorFlow, and PyTorch. I lead cross-functional teams across the US and Singapore, delivering predictive models and AI-enabled solutions for financial services, telecom analytics, and consumer products. I enjoy turning data into scalable, production-ready capabilities, mentoring teammates, and collaborating with product and platform teams to drive end-to-end data acquisition, modeling, deployment, and governance.

Available to hire

I am a data scientist and AI/ML engineer with 15 years in information technology, specializing in GenAI, agentic AI, ML, DL, NLP, data engineering, and cloud platforms. I build and deploy end-to-end AI solutions, including LLM-wrapped multi-agent systems, Conversational RAG chatbots, vector databases, fine-tuned models, and ML Ops workflows using LangChain, HuggingFace, TensorFlow, and PyTorch.

I lead cross-functional teams across the US and Singapore, delivering predictive models and AI-enabled solutions for financial services, telecom analytics, and consumer products. I enjoy turning data into scalable, production-ready capabilities, mentoring teammates, and collaborating with product and platform teams to drive end-to-end data acquisition, modeling, deployment, and governance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Lead AI ML Engineer

March 1, 2024 - December 31, 2025

Lead and deploy RAG Q&A bots and summary bots using AWS Bedrock foundation models (Llama2, Claude, Titan) integrating with LangChain, Lambda, and API gateways; roadmap analytical solutions for new initiatives; develop predictive models for wells; manage end-to-end DS lifecycle and coordinate vector DB creation for RAG models; collaborate with Data Platform and Operations teams across Snowflake & Azure data for model deployment and governance.

Sr Data Science Consultant/AI ML Engineer at Ally Financials

June 1, 2023 - March 31, 2024

Develop and deploy AI agents for consumer banking; NLP analytics, text summarization, sentiment analysis, and topic modeling using Transformer-based models; build forecasting models for SME target groups; create and manage vector databases and guardrails for multimodal agents and RAG workflows; implement RESTful model endpoints and integrate with front-end apps.

Data Engineer Team Lead, AVP at DBS Bank

April 1, 2021 - May 31, 2023

Design, develop, test, and pipeline Spark compute jobs; lead ML Ops & Data Engineering squads; address SAS to Python/PySpark migration, data governance, metadata management with Collibra, and offload data to AWS S3 with containerized computing; build search API for Consumer Banking group; mentor 5 markets in migration.

Lead Data Scientist at Star Hub Ltd.

October 1, 2018 - March 31, 2021

Led development of scalable telecom big data analytics products; built ML models for churn and customer attrition drivers; delivered online behavioral psychographic product pack for 1.3 million customers; led NLP tasks with TensorFlow Text for tokenization, vectorization, and text classification.

Data Scientist at NCS Pvt Ltd

December 1, 2015 - October 31, 2018

Developed forecasting models (multi-linear regression, ARIMA) and classification/clustering models; performed time-series forecasting for multivariate data; built dashboards in Tableau; performed data ETL with Databricks and monitored model performance.

Data Engineer at Mediacom

August 1, 2013 - November 30, 2015

Developed and maintained a consolidated DataMart for P&G campaigns; data extraction and ingestion from Media Mind, Google Analytics, and Facebook; built data flows for media mix modeling and spent optimization; created high-end Tableau visuals for business decisions.

Statistical Analyst at JD Power Asia Pacific

June 1, 2012 - May 31, 2013

Managed customer satisfaction data; built regression models; conducted panel data analysis; performed sentiment analysis of reviews and built forecasting models to support client campaigns.