Joyce Catherine Choi

S

VP of Engineering, Ember Ops - Redis · Python · rate limiting

Ember Ops
Minneapolis, MN · CT (UTC-6)
11+ years experience
Harvard Business School
English
Co-founder
Messaging unavailable

Overview

Currently at Ember Ops, where I lead API platforms with a team of 34. Shipped a rewrite that took build times from 29 minutes to under 4. Before that: Accenture and Cloudflare. Former debater; now I argue with spreadsheets.

Good reasons to reach out
  • People who want to build this with me
  • Thoughtful intros to people in my field
  • Working sessions on Redis
Please don't message about
  • Generic networking requests
  • Crypto token projects

Travels often; replies within 48 hours

Skills
PythonPostgreSQLRedisRESTrate limitingDjango
Co-founderLooking for a co-founder
closes in 3 months

Looking for an ML-focused co-founder for code review for public hospitals

The idea
Looking for an ML-focused co-founder for code review for public hospitals
Stage
Prototype
I bring
12 years in API platforms
Looking for
Technical co-founder who has shipped B2B software
Commitment
Full-time after funding
Location
Minneapolis or remote

I bring 24 years of API platforms (currently Ember Ops). Ideally you've led a design team. Full-time from day one.

Minneapolis, MNdjangopostgresqlpython
Open

Experience

  1. VP of Engineering
    Jun 2024 - Present
    Ember Ops · 2 yr 4 mo · Full-time · Minneapolis, MN
    • Grew the public API team from 6 to 21 engineers.
    • Mentored 14 engineers through their first promotion.
    • Cut p99 latency on the public API services from 597ms to 131ms.
  2. Director of Engineering
    Apr 2022 - Jun 2024
    Accenture · 2 yr 2 mo · Full-time · Minneapolis, MN
    • Moved 69% of public API traffic off a legacy monolith without a customer-facing incident.
  3. Backend Engineer
    Oct 2020 - Apr 2022
    Cloudflare · 1 yr 6 mo · Contract · Minneapolis, MN
    • Wrote the Redis service that now handles 26 million requests a day.
    • Shipped 14 launches on the public API team without a rollback.
  4. Backend Engineer
    Mar 2019 - Oct 2020
    Datadog · 1 yr 7 mo · Full-time · Minneapolis, MN
    • Cut p99 latency on the public API services from 742ms to 131ms.
    • Brought on-call pages for public API down from 12 a week to 4.
  5. Director of Engineering
    Jun 2015 - Mar 2019
    EY · 3 yr 9 mo · Full-time · Minneapolis, MN
    • Shipped 25 launches on the public API team without a rollback.

Projects

Conference talk: lessons from public API
2024

What went wrong and what worked while scaling API platforms.

References

No references yet.

Education

  1. Harvard Business School
    MBA, Business Administration
    2005 - 2007
  2. Ohio State University
    BA, Computer Science
    1997 - 2001

Details

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