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Lan Shermaine Chong

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Engineering Manager at PropertyGuru · Real-time systems

Works at
PropertyGuru
Location
Hong Kong · HKT (UTC+8)
Experience
12+ years experience
Education
University of Sydney
Languages
English, Cantonese
Message Connect

Overview

Based in Hong Kong. I lead real-time systems at PropertyGuru. Led the migration of 38 services to Redis. Most at home with Erlang/OTP and low-latency systems. Board member at a local non-profit.

Good reasons to reach out
  • Working sessions on low-latency systems
  • Questions about real-time systems
Please don't message about
  • Crypto token projects
  • Courses and coaching offers
  • Recruiters for roles outside my stack

Replies within two days

Skills
Erlang/OTPGoRedisElixirlow-latency systems

Experience

  1. Engineering Manager
    Feb 2026 - Present
    PropertyGuru · 9 mo · Full-time · Hong Kong
    • Reduced cloud spend on real-time by 36% in two quarters.
    • Cut p99 latency on the real-time services from 570ms to 74ms.
  2. Software Engineer
    Jun 2022 - Feb 2026
    Tencent · 3 yr 8 mo · Full-time · Hong Kong
    • Shipped 6 launches on the real-time team without a rollback.
  3. Senior Software Engineer
    Aug 2019 - Jun 2022
    HSBC · 2 yr 10 mo · Full-time · Hong Kong
    • Wrote the Elixir service that now handles 64 million requests a day.
    • Built the experimentation framework 33 product teams use to ship changes safely.
  4. Senior Software Engineer
    Mar 2017 - Jun 2019
    Hyundai Motor · 2 yr 3 mo · Full-time · Hong Kong
    • Shipped a rewrite that took build times from 14 minutes to under 5.
    • Reduced cloud spend on real-time by 30% in two quarters.
  5. Software Engineer
    Dec 2014 - Mar 2017
    PropertyGuru · 2 yr 3 mo · Full-time · Hong Kong
    • Shipped a rewrite that took build times from 19 minutes to under 3.

References

No references yet.

Education

  1. University of Sydney
    BEng, Electrical Engineering
    2010 - 2014

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