Senior Data Scientist (Ads & Demand Optimization)

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

About Grab and Our Workplace

Grab is Southeast Asia's leading superapp. From getting your favourite meals delivered to helping you manage your finances and getting around town hassle-free, we've got your back with everything. In Grab, purpose gives us joy and habits build excellence, while harnessing the power of Technology and AI to deliver the mission of driving Southeast Asia forward by economically empowering everyone, with heart, hunger, honour, and humility.

Company Description

Grab is Southeast Asia's leading superapp. From getting your favourite meals delivered to helping you manage your finances and getting around town hassle-free, we've got your back with everything. In Grab, purpose gives us joy and habits build excellence, while harnessing the power of Technology and AI to deliver the mission of driving Southeast Asia forward by economically empowering everyone, with heart, hunger, honour, and humility.

Job Description

Get to Know the Team

Join our Ads and Demand Optimization Team, sitting at the intersection of machine learning, economics, and engineering. We design algorithms ensuring the right ads and promotional incentives reach the right audience. We optimise ads inventory and promotional spend to maximise Return On Investment (ROI) for merchants, users, and the platform. We focus on architecting the "brains" behind the system—solving complex marketplace challenges.

Get to Know the Role

We are looking for a Senior Data Scientist (G4) to bridge ads ranking and demand personalization. You'll develop algorithmic frameworks that shape user journeys, govern ads auctions, and allocate promotional budgets. You'll report into the Data Science Manager II and based onsite at Grab One North Singapore office.

The Critical Tasks You Will Perform

• Design Optimization Frameworks: Develop data science methodologies for ad ranking and automated promo assignment.
• Lead Causal Inference: Deploy uplift models and causal inference frameworks to maximise promotional incrementality.
• Optimise Auctions: Improve ads auction mechanics and budget allocation to balance ecosystem health and platform ROI.
• Experimentation and Metrics: Design frameworks (A/B testing, switchback, bandits) evaluating CTR, CVR, and incremental GMV.
• Collaborate: Partner with Product and Engineering to translate marketplace challenges into clear data science roadmaps.

Qualifications

What Essential Skills You Will Need

• Qualification: Bachelor's Degree in Computer Science or related fields
• Experience: At least 4 years as a Data Scientist in ads ranking, recommendation, uplift modelling, or marketplace optimization.
• Methodology: Expertise in causal inference, uplift modelling, experimental design, or ads auction theory.
• Foundations: statistical modelling, machine learning, and mathematical optimization foundations.
• Tools: Proficiency in Python, SQL, and distributed data frameworks like Spark for large-scale datasets.
• Communication: Ability to translate complex concepts and bring structural clarity to open-ended product problems.

Additional Information

Life at Grab

We care about your well-being at Grab, here are some of the global benefits we offer:

• We have your back with Term Life Insurance and comprehensive Medical Insurance.
• With GrabFlex, create a benefits package that suits your needs and aspirations.
• Celebrate moments that matter in life with loved ones through Parental and Birthday leave, and give back to your communities through Love-all-Serve-all (LASA) volunteering leave
• We have a confidential Grabber Assistance Programme to guide and uplift you and your loved ones through life's challenges.
• Balancing personal commitments and life's demands are made easier with our FlexWork arrangements such as differentiated hours

What We Stand For At Grab

We are committed to building an inclusive and equitable workplace that enables diverse Grabbers to grow and perform at their best. As an equal opportunity employer, we consider all candidates fairly and equally regardless of nationality, ethnicity, religion, age, gender identity, sexual orientation, family commitments, physical and mental impairments or disabilities, and other attributes that make them unique.