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ML/LLM Engineer

TransUnion

2 - 5 years

Chennai

Posted: 29/08/2025

Job Description

TransUnion's Job Applicant Privacy Notice

What We'll Bring:

We are seeking a skilled and innovative Machine Learning / LLM Engineer to join our AI team. This role focuses on building intelligent applications using large language models (LLMs), with hands-on experience in frameworks like LangChain and LangGraph. You will be responsible for designing, fine-tuning, and deploying LLM-powered solutions that drive real business impact.

What You'll Bring:

Develop and deploy LLM-based applications using frameworks such as LangChain, LangGraph, and Hugging Face Transformers.
Design modular and scalable agent workflows using LangGraph for complex reasoning and multi-step tasks.
Implement retrieval-augmented generation (RAG), prompt engineering, and custom tool integrations.
Fine-tune and optimize LLMs (e.g., GPT, LLaMA, Mistral) for domain-specific use cases.
Build and maintain ML pipelines for training, evaluation, and deployment using tools like MLflow, Kubeflow, or Vertex AI.
Integrate models with vector databases (e.g., FAISS, Pinecone, Weaviate) for semantic search and contextual retrieval.
Collaborate with cross-functional teams to deliver production-ready AI solutions.
Monitor model performance and continuously improve accuracy, latency, and reliability.

Impact You'll Make:

If any ML related certification is added advantage

This is a hybrid position and involves regular performance of job responsibilities virtually as well as in-person at an assigned TU office location for a minimum of two days a week.

TransUnion Job Title

Developer, Applications Development

About Company

TransUnion is a global information and credit reporting company that provides credit risk, fraud detection, and identity management solutions. It collects and analyzes data on individuals and businesses, offering insights to help organizations make informed decisions about lending, risk management, and consumer behavior. TransUnion serves various industries, including finance, insurance, healthcare, and government, providing services that support credit scoring, fraud prevention, and regulatory compliance. Headquartered in Chicago, Illinois, TransUnion operates worldwide to help businesses manage risk and empower consumers to understand and improve their financial health.

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