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Senior Principal Machine Learning Engineer (Fulfilment)

GrabSingaporePosted 20 May 2026

Grab is seeking a Senior Principal Machine Learning Engineer to lead the development of automated marketplace optimization systems. The role focuses on leveraging reinforcement learning and large language models to improve pricing, dispatch, and supply repositioning at scale. The successful candidate will guide technical strategy, mentor a small team, and integrate advanced models into production. This is a high-impact individual contributor position based in Singapore.

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Experience

10+ years

Function

Engineering

Work mode

Onsite, Singapore

Company

Tier 1

What you will work on

Grab is seeking a Senior Principal Machine Learning Engineer to lead the development of automated marketplace optimization systems. The role focuses on leveraging reinforcement learning and large language models to improve pricing, dispatch, and supply repositioning at scale. The successful candidate will guide technical strategy, mentor a small team, and integrate advanced models into production. This is a high-impact individual contributor position based in Singapore.

TAL's take

Quality 90/1005/5 clarityTier 1 company

Highly specialized Principal role at a top-tier regional unicorn focusing on advanced ML/RL systems at massive scale.

The JD is extremely well-defined with clear technical domains, specific architectural expectations, and project focus.

Salaries at Grab

40.7 LPA average

Based on 22 Grapevine salary entries for Grab.

View all salaries

Engineering

2 - 4 years | G3

24 LPA average

Range: 15 - 28 LPA

Engineering

4 - 6 years | G4

40 LPA average

Range: 40 - 40 LPA

Engineering

6 - 8 years | G4

43 LPA average

Range: 36 - 47 LPA

Engineering

8 - 10 years

52 LPA average

Range: 52 - 52 LPA

Must haves

  • PhD in CS, Operations Research, Applied Mathematics or related field
  • Minimum 10 years of experience in technical initiatives
  • Proficiency in Reinforcement Learning fundamentals
  • Experience building production ML/RL systems
  • Hands-on experience fine-tuning LLMs in production
  • Proficiency in Python and ML frameworks (PyTorch or TensorFlow)

Tools and skills

pythonpytorchtensorflowreinforcement learninglarge language modelstransformersdistributed training frameworksdeepspeedfsdpmegatron-lmsparkray

About the company

Grab is a leading Southeast Asian superapp and well-known unicorn with a strong engineering brand.

Posts mentioning Grab

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