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Ai/ML Data scientist

Tata Consultancy Services

2 - 5 years

Chennai

Posted: 09/05/2026

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Job Description

Ai/ML Data scientist-Walk In - Chennai


Experiences : 6 to 12 Years


The Role

In this role, you will uncover the insights and intelligence that help customers in dynamic, dataintensive industries operate, scale, and innovate. You will develop robust, futureready machine learning and analytical models that enable predictive insights, automation, and datadriven decision making across complex digital transformation programmes. With access to modern data platforms, highquality datasets, and advanced statistical and AI frameworks, you will work closely with engineering, product, and analytics teams to build solutions that are accurate, explainable, and scalable. This role empowers you to shape endtoend analytical ecosystemsaccelerating delivery, enhancing decision quality, strengthening operational resilience, and guiding organisations toward a more insightrich, AIenabled future.


Your responsibilities:

  • Explore, clean, and analyse large, complex datasets to uncover patterns, trends, and opportunities that drive actionable insights.
  • Develop, train, and validate machine learning, statistical, and predictive models that solve real business problems and deliver measurable impact.
  • Design and run experiments (A/B tests, hypothesis tests, simulations) to evaluate ideas, quantify outcomes, and guide decisionmaking.
  • Collaborate with data engineers, analysts, product managers, and domain experts to translate business requirements into welldefined modelling tasks.
  • Build endtoend ML pipelinesfrom feature engineering and preprocessing to deploymentready model outputs.
  • Apply advanced techniques such as NLP, timeseries forecasting, anomaly detection, optimisation, or LLM/GenAI methods where relevant.
  • Implement model evaluation frameworks using offline metrics, crossvalidation, online experiments, and humanintheloop feedback loops.
  • Communicate insights clearly through dashboards, visualisations, written summaries, and presentations tailored to technical and nontechnical stakeholders.
  • Ensure models are interpretable and explainable where required, providing transparency into key drivers and assumptions.
  • Work with engineering teams to deploy models into production, monitor performance, and retrain or recalibrate as data and conditions change.

Your Profile


Role- Data Scientist


Hands-on experience with GenAI, Gemini or Open source LLMs and develop GenAI applications for Code Translation, Text Extraction, Summarisation and SDLC Optimization etc.

  • Hands-on Experience with AI Agents, Chat bots, RAG (Retrieval-Augmented Generation), and vector databases. ( PG vector / croma DB )
  • Hands-on Experience with GenAI Performance Evaluation tools like Pegasus, Ragas, DeepEval
  • Create Conversational Interface with React JS or other Frontend components, Develop and deploy AI agents using LangGraph and ADK, A2A, MCP
  • Strong programming skills in Python (experience with LangChain/LangGraph / LangSmith frameworks) and TypeScript ( preferable )
  • Solid understanding of LLMs, prompt engineering, and graph-based workflows.
  • Knowledge and implementation of Input and Output guardrails in addressing Hallucination, PII filtering, HAP and Bias etc.
  • Implemented security best practices, Experience to address spikes and Denial of wallet attacks, DDoS attack and other Spike arrest strategies
  • Knowledge of API Gateways and ISTIO , ability to Diagnose and intercept failures in End to End communication
  • Hands-on Experience with API Development and Microservices architecture

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