Syaza Hartono

Sample

Director of Engineering at Singtel | ex-Meta

Singtel
Jakarta, Indonesia · WIB (UTC+7)
12+ years experience
HKUST
English, Bahasa Indonesia
Advising
Messaging unavailable

Overview

I lead ML infrastructure at Singtel in Jakarta. Led the migration of 43 services to CUDA. Most at home with Ray and feature stores. I teach a weekend class on Python.

Good reasons to reach out
  • Advice on ML infrastructure
  • Speaking or podcast invitations
  • Questions about ML infrastructure
Please don't message about
  • Unpaid work or spec projects
  • Offshore staffing offers
  • SEO and link-building offers

Checks messages twice a week

Skills
CUDAPythonfeature storesRayPyTorchKubeflow
AdvisingOpen to advising
closes in 3 months

Office hours for new engineering managers: ML infrastructure and PyTorch

Topics
ML infrastructure, Kubeflow, Python
Format
Office hours
Terms
Paid
Capacity
One call a month
Best for
First-time founders

15 years of ML infrastructure. Small equity or paid hours - flexible.

Jakarta, Indonesiafeature storespytorchkubeflow
Open

Experience

  1. Director of Engineering
    Jan 2024 - Present
    Singtel · 2 yr 9 mo · Full-time · Jakarta, Indonesia
    • Moved 78% of ML platform traffic off a legacy monolith without a customer-facing incident.
    • Cut p99 latency on the ML platform services from 469ms to 127ms.
  2. Staff ML Engineer
    Sep 2021 - Jan 2024
    Meta · 2 yr 4 mo · Full-time · Jakarta, Indonesia
    • Built the recommendations models now used in 9 product decisions a quarter.
  3. Staff ML Engineer
    Nov 2018 - Sep 2021
    Sea · 2 yr 10 mo · Full-time · Jakarta, Indonesia
    • Moved the homepage from rules to a learned ranker.
  4. Senior ML Engineer
    Feb 2017 - Nov 2018
    Maybank · 1 yr 9 mo · Full-time · Jakarta, Indonesia
    • Replaced 85 hand-built dashboards with one metrics layer people trust.
    • Wrote the metric definitions the leadership team reviews every week.
  5. Senior ML Engineer
    Oct 2014 - Feb 2017
    Atlassian · 2 yr 4 mo · Full-time · Jakarta, Indonesia
    • Moved the homepage from rules to a learned ranker.
    • Taught SQL to 59 non-analysts.

Projects

Conference talk: lessons from ML platform
2026

What went wrong and what worked while scaling ML infrastructure.

Write-up: ML infrastructure in practice
2022

A long-form guide to ML infrastructure for people starting out.

References

No references yet.

Education

  1. HKUST
    BEng, Computer Science
    2007 - 2011

Details

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