Jeffrey Lean
Senior Software Engineer at Grab
Kuala Lumpur, Malaysia
Summary
👤
Senior🎓
Top SchoolJeffrey Lean is a Senior Software Engineer based in Kuala Lumpur with ~5 years building backend systems, distributed streaming platforms, embedded finance services, and identity infrastructure at companies like Grab, AirAsia MOVE, and BigPay. A Gopher and Rustacean passionate about cloud, data, and infra, he currently focuses on Applied AI tooling and infrastructure. He treats coding as a hobby as much as a profession—driven by a "never satisfied" mindset that pushes him toward elegant, production-grade solutions. Notably, he has moved from centralized streaming platforms to identity and AI infra, giving him a rare end-to-end perspective on data flow and model-serving pipelines.
5 years of coding experience
6 years of employment as a software developer
Bachelor of Computer science Computer Science, Bachelor of Computer science Computer Science at Universiti Tunku Abdul Rahman (UTAR)
English, Chinese, Malay
Stackoverflow
11reputation
62reached
0answers
1question
Github Skills (61)
lsm-tree10
object-storage9
rocksdb9
database9
embedded-database9
logging9
rust9
stream-processing8
storage-engine8
opentelemetry8
ai8
serial-port8
column-store8
hpc8
time-series8
Programming languages (6)
Github contributions (5)
jeffreylean/talaria
Jun 2022 - Sep 2024
TalariaDB is a distributed, highly available, and low latency time-series database for Presto
Contributions:1 release, 8 PRs, 34 pushes in 2 years 3 months
time-series-databaseseries-databaselatencytimeseries-databasebig-data
jeffreylean/blog
May 2023 - Mar 2026
Contributions:1 PR, 16 pushes, 2 branches in 2 years 11 months
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