SEI WAI LAI
Kuala Lumpur
Summary
Experienced in building and optimizing large-scale, complex systems with a proven track record of leading multiple key projects to successful delivery. Combines deep technical expertise with a strong product mindset to align engineering solutions with business goals and user needs.
Overview
4
4
years of professional experience
Work History
Software Engineer/Senior Software Engineer
Grab
08.2022 - Current
- Led improvement on Allocation Swaps feature, reducing average allocation time by 8% (25 seconds) and unallocated bookings by 200k per month
- Led all-new supply levers mechanism to improve difficult and on-demand bookings allocation, increasing fulfillment rate (# bookings successfully allocated / # new bookings) by average of 5% for several vehicle types
- Led delivery-related allocation efficiency engineering initiatives and integrated new Data Science models, reducing driver wait time at merchants by 15% on average
- Led legacy service revamp, reducing endpoints queries by 20% and adding a persistent database to remove Redis dependency
- Led migration of driver acceptance rate calculation flow and ownership to the allocation team
- Proposed and built case for migrating food-related allocation efficiency feature from food service to allocation service
- Led allocation team's observability and alerts initiative, enhancing operational excellence and system stability
- Contributed to integration of third-party driver supply partners and rolled out feature to Indonesia
- Mentored and onboarded new engineer
- Joined on-call rotation and contributed to engineering initiatives and operational excellence initiatives
Software Engineer
Grab
08.2022 - 09.2024
- Led improvement on Allocation Swaps feature, reducing average allocation time by 8% (25 seconds) and unallocated bookings by 200k per month
- Led all-new supply levers mechanism to improve difficult and on-demand bookings allocation, increasing fulfillment rate (# bookings successfully allocated / # new bookings) by average of 5% for several vehicle types
- Led delivery-related allocation efficiency engineering initiatives and integrated new Data Science models, reducing driver wait time at merchants by 15% on average
- Led legacy service revamp, reducing endpoints queries by 20% and adding a persistent database to remove Redis dependency
- Led migration of driver acceptance rate calculation flow and ownership to the allocation team
- Joined on-call rotation and contributed to initiatives on improving operational excellence, team processes, and reduce infrastructure costs
Software Engineer
Fave
06.2021 - 07.2022
- Develop payment system and successfully integrate 3rd party source of fund in Malaysia and powered 500k transactions per month
Education
Master of Science - Finance
Central University of Finance And Economics
Beijing, China06-2021
Skills
- Programming - Golang, Ruby, Python
- Infra - AWS, Terraform, Redis, DynamoDB, Kafka, Message Queue
- Analytics - SQL
Languages
English, Chinese (Mandarin)
Native language
Malay
Proficient
C2
Timeline
Software Engineer/Senior Software Engineer
Grab
08.2022 - Current
Software Engineer
Grab
08.2022 - 09.2024
Software Engineer
Fave
06.2021 - 07.2022
Master of Science - Finance
Central University of Finance And Economics
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