Senior Data Scientist, Ads & Demand Optimization (FlexWork)

Grab; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Term Life Insurance

Medical Insurance

GrabFlex benefits package

Parental leave

Birthday leave

LASA volunteering leave

Grabber Assistance Programme

FlexWork differentiated hours

Job summary

Grab is seeking a Senior Data Scientist (G4) to bridge ads ranking and demand personalization, developing algorithmic frameworks that shape user journeys and govern ads auctions. This role is based onsite at Grab One North Singapore office.

You will report to the Data Science Manager II and collaborate with Product and Engineering to tackle complex marketplace challenges in a dynamic, growth-focused environment.

Qualifications

• Bachelor's Degree in Computer Science or related fields.
• 4+ years as a Data Scientist in ads ranking, recommendation, uplift modelling, or marketplace optimization.
• Expertise in causal inference, uplift modelling, experimental design, or ads auction theory.
• Foundations in statistical modelling, machine learning, and mathematical optimization.
• Proficiency in Python, SQL, and Spark for large-scale datasets.

Responsibilities

• Design optimization frameworks for ad ranking and automated promo assignment.
• Lead causal inference: deploy uplift models and causal inference frameworks to maximise promotional incrementality.
• Improve ads auction mechanics and budget allocation to balance ecosystem health and platform ROI.
• Design experimentation frameworks (A/B testing, switchback, bandits) evaluating CTR, CVR, and incremental GMV.
• Collaborate with Product and Engineering to translate marketplace challenges into clear data science roadmaps.

Skills

Python

SQL

Spark

Statistical modelling

Machine learning

Mathematical optimization

Causal inference

Uplift modelling

Experiment design

Communication

Education

Bachelor's Degree in Computer Science or related fields

Tools

Spark

SQL

Python

Job description

Grab is seeking a Senior Data Scientist (G4) to bridge ads ranking and demand personalization, developing algorithmic frameworks that shape user journeys and govern ads auctions. This role is based onsite at Grab One North Singapore office.

You will report to the Data Science Manager II and collaborate with Product and Engineering to tackle complex marketplace challenges in a dynamic, growth-focused environment.