Senior Data Scientist - Ads

JioHotstar; Bengaluru; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

JioStar seeks a data science leader to build GenAI/LLM-enabled models and traditional ML systems for a personalized advertising experience. You will forecast inventory and optimize ad targeting across live sports to VOD content, driving measurable revenue and user value.

You will deploy models into production, work with cross-functional teams, and lead data-driven experimentation to improve campaign performance and advertiser metrics.

Qualifications

• Proven experience in data science and machine learning in AdTech or related industries.
• Strong proficiency in Python, SQL, and libraries (Pandas, Scikit-learn, TensorFlow, PyTorch).
• Expertise in building and deploying ML models into production systems.
• Experience with big data technologies (Hadoop, Spark) and cloud platforms (AWS, Google Cloud).
• Deep understanding of statistical analysis, ML, data mining, and predictive modeling.
• Should be comfortable leveraging LLMs and internal tooling.

Responsibilities

• Analyze large datasets to identify trends and actionable insights for the Ads platform.
• Design, develop, and deploy statistical models, ML algorithms, generative AI models, and predictive analytics.
• Integrate ML models into production systems to deliver real-time insights and automated decisions.
• Collaborate with Data Engineering, Product Management, Ad Tech, and Business teams to deploy end-to-end solutions.
• Continuously evaluate data quality and model performance for reliable insights.
• Develop and run A/B tests to validate improvements and quantify impact.
• Stay updated on latest data science, ML, and AI advances and apply them to the Ads platform.
• Present findings and business impact to technical and non-technical stakeholders.

Skills

Data science

Machine learning

Python

SQL

Pandas

Scikit-learn

TensorFlow

PyTorch

LLMs

Hadoop

Spark

AWS

Google Cloud

Education

Bachelors in Data Science

Masters in CS/Math/Statistics

Tools

Hadoop

Spark

AWS

Google Cloud

Job description

The role requires building models using GenAI/LLM techniques in addition to traditional ML techniques for enabling - a unique personalized Ad experience that benefits users, advertisers and Jiostar like no other platform does. Forecasting inventory (frequency and reach) for the rich diverse content that varies from live sports to VOD content on the platform. Better performing Ad ecosystem that can optimize on not just simple advertising metrics like clicks but complex advertiser metrics like user conversions and user LTV.

About the team:

JioHotstar is building the advertising platform that will power commerce-led advertising across some of India’s largest digital consumer businesses. This team sits at the intersection of AdTech, e-commerce, data, and monetisation. The goal is to help retail platforms unlock high-intent advertising inventory across the full shopping journey - home pages, category pages, product detail pages, cart, order confirmation flows, and personalised placements - while giving advertisers measurable outcomes.

Key responsibilities

• Analyze large datasets from various sources to identify trends, patterns, and actionable insights that help define and execute data-driven strategies for the Ads platform
• Design, develop, and deploy statistical models, machine learning algorithms, generative AI models, and predictive analytics to optimize ad targeting, improve campaign performance, and maximize revenue
• Integrate machine learning models into production systems to deliver real-time insights and automated decision-making capabilities
• Collaborate closely with cross-functional teams, including Data Engineering, Product Management, Ad Tech, and Business teams, to understand business challenges and deploy end-to-end solutions
• Continuously evaluate and improve data quality and model performance to ensure consistent, reliable, and accurate insights
• Develop and execute A/B testing frameworks and experimental designs to validate algorithmic improvements and quantify business impact
• Stay up-to-date with the latest advancements in data science, machine learning, and AI, and proactively incorporate cutting-edge techniques into models and the Ads platform
• Present findings, methodologies, and business impact of data science initiatives to technical and non-technical stakeholders

Skills and attributes for success

• Proven experience in data science and machine learning preferably in AdTech or related industries
• Strong proficiency in Python, SQL, and relevant data science libraries (Pandas, Scikit-learn, TensorFlow, PyTorch, etc.)
• Expertise in building and deploying machine learning models into production systems
• Experience with big data technologies (e.g., Hadoop, Spark) and cloud platforms (e.g., AWS, Google Cloud)
• Deep understanding of statistical analysis, machine learning, data mining, and predictive modeling techniques
• uesShould be comfortable leveraging LLMs and intern
• alsStrong problem-solving skills with the ability to translate business problems into data science solutions
• Excellent verbal and written communication skills, with the ability to present complex information to non-technical stakeholders

Preferred education and experience:

Bachelors/Masters in Data Science, Statistics, Computer Science, Mathematics, or a related field with 4-6.5 years of experience in data science.

About Us

Perched firmly at the nucleus of spellbinding content and innovative technology, JioStar is a leading global media & entertainment company that is reimagining the way audiences consume entertainment and sports. Its television network and streaming service together reach more than 750 million viewers every week, igniting the dreams and aspirations of hundreds of million people across geographies.

JioStar is an equal opportunity employer. The company values diversity and its mission is to create a workplace where everyone can bring their authentic selves to work. The company ensures that the work environment is free from any discrimination against persons with disabilities, gender, gender identity and any other characteristics or status that is legally protected.