Rachel Powell

S

VP of Engineering, Ledger Studio - TypeScript · Node.js · experimentation

Ledger Studio
Hong Kong · HKT (UTC+8)
15+ years experience
University of the Philippines Diliman
English, Cantonese
Hiring
Messaging unavailable

Overview

16 years in software engineering, the last 4 at Ledger Studio, where I lead the growth team. Reduced cloud spend on growth by 38% in two quarters. Before that: Foxconn and SK Hynix. Most at home with Node.js and PostgreSQL. Amateur photographer; mostly street and food.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Second opinions on TypeScript decisions
  • Thoughtful intros to people in my field
  • Speaking or podcast invitations
Please don't message about
  • Crypto token projects
  • Offshore staffing offers
  • Agency or outsourcing pitches

Replies on weekends

Skills
TypeScriptanalyticsexperimentationNode.jsPostgreSQL
HiringHiring for a role
closes in 3 months

Looking for a mobile engineer who has worked on analytics at scale

Role
Mobile engineer
Level
Senior
Type
Contract
Work mode
Remote within country
Compensation
$152k-$218k
Team
Growth, 15 people
Start
This quarter
Must have
Production experience with analytics Production experience with PostgreSQL Comfort with ambiguity
Process
Decision within 10 days

Comp S$117k-S$188k. Four conversations, no take-home. Message me with one thing you shipped that you're proud of.

Hong Kong · remote OKpostgresqltypescriptexperimentation
Open

Experience

  1. VP of Engineering
    Sep 2022 - Present
    Ledger Studio · 4 yr 1 mo · Full-time · Hong Kong
    • Built the experimentation framework 31 product teams use to ship changes safely.
    • Led the migration of 38 services to analytics.
    • Reduced cloud spend on growth by 19% in two quarters.
  2. Staff Full-Stack Engineer
    Feb 2020 - Sep 2022
    Foxconn · 2 yr 7 mo · Contract · Hong Kong
    • Shipped 27 launches on the growth team without a rollback.
    • Grew the growth team from 5 to 30 engineers.
  3. Full-Stack Engineer
    Oct 2017 - Feb 2020
    SK Hynix · 2 yr 4 mo · Full-time · Hong Kong
    • Cut p99 latency on the growth services from 342ms to 173ms.
  4. Full-Stack Engineer
    Dec 2013 - Oct 2017
    Lenovo · 3 yr 10 mo · Full-time · Hong Kong
    • Wrote the TypeScript service that now handles 33 million requests a day.
    • Moved 63% of growth traffic off a legacy monolith without a customer-facing incident.
  5. Full-Stack Engineer
    Sep 2011 - Sep 2013
    NAB · 2 yr · Full-time · Hong Kong
    • Shipped 29 launches on the growth team without a rollback.
    • Wrote the experimentation service that now handles 88 million requests a day.

Projects

Write-up: growth engineering in practice
2025

A long-form guide to growth engineering for people starting out.

References

No references yet.

Education

  1. University of the Philippines Diliman
    BS, Computer Engineering
    2005 - 2009

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