19 hours ago
Singapore, SingaporeSenior
Responsibilities
- Investigate fraud, abuse, account integrity, and platform-safety problems using data and domain knowledge.
- Define success metrics while balancing detection quality, user experience, latency, and operational cost.
- Select appropriate solutions across machine learning, heuristics, rules, graph techniques, optimization, and system changes.
- Build data pipelines and features from high-volume batch and streaming data.
- Develop proof-of-concept solutions and validate them against realistic baselines.
- Convert successful prototypes into scalable, tested, and observable production systems.
- Integrate solutions into real-time risk decisioning and offline detection workflows.
- Design experiments and monitoring for effectiveness, false positives, model drift, and emerging attack patterns.
- Perform root-cause analysis and adapt solutions as adversarial behaviors evolve.
- Improve technical foundations to make future trust solutions faster and safer to deliver.
Requirements
- At least 4 years of relevant experience in software development and problem solving.
- Proficiency in SQL and at least one production programming language.
- Working knowledge of machine learning and statistical evaluation.
- Experience using data to solve open-ended product or operational problems.
- Experience building production data pipelines, backend services, or decision systems.
- Ability to explain technical reasoning, assumptions, trade-offs, and experimental results.
- Ability to work across modeling, data engineering, and software engineering boundaries.
Benefits
- Term Life Insurance and comprehensive Medical Insurance.
- GrabFlex benefits package customization.
- Parental leave, Birthday leave, and Love-all-Serve-all volunteering leave.
- Confidential Grabber Assistance Programme.
- FlexWork arrangements, including differentiated hours.
Tech Stack
Categories
About Grab
Grab builds a Southeast Asia superapp for mobility, deliveries, and financial services, serving consumers, drivers, merchants, and enterprises. It monetizes via ride and delivery commissions, merchant services (such as ads and subscriptions), and payments and digital banking products. Founded in 2012 and headquartered in Singapore, Grab operates across multiple Southeast Asian markets and is publicly listed on NASDAQ.