AI / ML Data Scientist II

The Nielsen Company; Mumbai; On-site; INR 1,500,000 - 2,500,000; Full time

Job summary

The Nielsen Company in Mumbai seeks a senior data scientist to develop and implement mathematical models, build scalable web‑based analytics, and design modules for modeling platforms.

You will collaborate with software engineers, document methodologies, and present results across teams. Strong expertise in Python, Spark, and ML libraries is required.

Qualifications

• PhD or Master’s in Operations Research, Industrial Engineering, Applied Mathematics, Computer Science or related field.
• 4+ years of experience in Data Science and/or statistical analysis.
• Expertise in Python, Spark, SQL or other modern programming languages.
• Experience in using machine learning libraries and techniques.
• Proficient in production‑grade code using NumPy/SciPy/Scikit‑learn.

Responsibilities

• Use and fit mathematical and econometric models for explanatory purposes and create high-quality data visualizations.
• Research, design and implement analytic approaches and scalable web-based analytical solutions.
• Design and test analytical modules for Nielsen modeling platforms.
• Partner with Software Engineering to build web-based analytical solutions.
• Document and present methodology inside and outside the company.

Skills

Python

Spark

SQL

Machine Learning

NumPy

SciPy

Scikit-learn

Bayesian statistics

Frequentist statistics

Docker

CI/CD

AWS

Azure

Education

PhD or Master’s in OR/IE/Applied Math/CS

Tools

Docker

CI/CD pipelines

AWS

Azure

Job description

Responsibilities

• Use and fit different mathematical and econometric models for explanatory purposes that deliver better decisions, and create high-quality data visualizations for internal and external purposes.
• Research, design and implement analytic and mathematical approaches and algorithms to build scalable best of class web‑based analytical solutions.
• Design and test analytical modules for Nielsen modeling platforms.
• Partner with our Software Engineering department to build best‑of‑class web‑based analytical solutions.
• Document and present methodology inside and outside the company.

Qualifications

• PhD or Masters degree in Operations Research, Industrial Engineering, Applied Mathematics, Computer Science, or related field.
• 4+ years experience in Data Science and/or Statistical analysis.
• Expertise in Python, Spark, SQL or other modern programming languages.
• Experience in using machine learning libraries and techniques.
• Proficient in writing production‑grade code using scientific computing packages (e.g., NumPy, SciPy, Scikit‑learn).
• Experience with Bayesian and Frequentist statistics.
• Experience with NumPyro is a plus.
• Familiarity with cloud providers (e.g., AWS, Azure) is a plus.
• Experience in code management, Docker, and CI/CD pipelines is a plus.
• Excellent oral and written communication skills.
• Well‑organized and capable of working independently on mission‑critical projects while meeting deadlines.
• Quick learner with a logical mindset and analytical thinking who is passionate about technology.
• Experience in short‑release life‑cycle (agile processes including scrum) is a plus.