Senior Data Scientist, Ads & Demand Optimization - Flexible Hours

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

Benefits offered by this job

Term Life Insurance

Medical Insurance

GrabFlex benefits

Parental leave

Birthday leave

LASA volunteering leave

Grabber Assistance Programme

FlexWork hours

Job summary

Grab in Singapore is seeking a Senior Data Scientist (G4) to bridge ads ranking and demand personalization. You will develop algorithmic frameworks shaping user journeys, govern ads auctions, and allocate promotional budgets.

The role reports to the Data Science Manager II and is based onsite at Grab One North Singapore. You will lead experiments, optimize bidding and incentive mechanisms, and collaborate with Product and Engineering to turn marketplace challenges into data-driven roadmaps.

Qualifications

• Bachelor's degree in Computer Science or related field
• 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 distributed data frameworks like Spark for large-scale datasets
• Strong communication to translate complex concepts into product roadmaps

Responsibilities

• Design Optimization Frameworks for ad ranking and promo assignment.
• Lead Causal Inference with uplift models to maximise promotional incrementality.
• Improve ads auction mechanics and budget allocation for ROI balance.
• Design experiments and metrics (A/B tests, switchback, bandits) evaluating CTR, CVR, and incremental GMV.
• Collaborate with Product and Engineering to translate marketplace challenges into data science roadmaps.

Skills

Causal inference

Uplift modelling

Experimental design

Ads ranking / auctions

Statistics & ML

Python

SQL

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Spark

Job description

Grab in Singapore is seeking a Senior Data Scientist (G4) to bridge ads ranking and demand personalization. You will develop algorithmic frameworks shaping user journeys, govern ads auctions, and allocate promotional budgets.

The role reports to the Data Science Manager II and is based onsite at Grab One North Singapore. You will lead experiments, optimize bidding and incentive mechanisms, and collaborate with Product and Engineering to turn marketplace challenges into data-driven roadmaps.