Sandra Sharon Yoon

S

Engineering Manager at Radix Cloud · REST, PostgreSQL

Radix Cloud
New York, NY · ET (UTC-5)
11+ years experience
Columbia University
English
Co-founder
Messaging unavailable

Overview

I've spent 11 years on API platforms - first at Adobe, now at Radix Cloud. Grew the public API team from 6 to 14 engineers. Wrote the PostgreSQL service that now handles 85 million requests a day. Outside work: long runs and longer podcasts.

Good reasons to reach out
  • People who want to build this with me
  • Second opinions on REST decisions
  • Speaking or podcast invitations
Please don't message about
  • Unpaid work or spec projects
  • Agency or outsourcing pitches

Replies on weekends

Skills
rate limitingPostgreSQLRESTPythonNext.jsDjango
Co-founderLooking for a co-founder
closes in 3 months

Looking for a go-to-market co-founder for localisation for solar installers

The idea
Localisation for solar installers
Stage
Idea
I bring
12 years in API platforms
Looking for
Technical co-founder who has shipped B2B software
Commitment
Full-time after funding
Location
New York or remote

I bring 11 years of API platforms (currently Radix Cloud). Ideally you've sold to enterprises. Incorporated, self-funded so far.

New York, NY · remote OKpythondjangorest
Open

Experience

  1. Engineering Manager
    Jan 2026 - Present
    Radix Cloud · 9 mo · Contract · New York, NY
    • Reduced cloud spend on public API by 30% in two quarters.
    • Brought on-call pages for public API down from 40 a week to 4.
  2. Senior Backend Engineer
    Jan 2024 - Jan 2026
    Morgan Stanley · 2 yr · Full-time · New York, NY
    • Led the migration of 15 services to PostgreSQL.
  3. Backend Engineer
    Oct 2021 - Jan 2024
    Netflix · 2 yr 3 mo · Full-time · New York, NY
    • Moved 79% of public API traffic off a legacy monolith without a customer-facing incident.
  4. Backend Engineer
    Sep 2018 - Oct 2021
    Deloitte · 3 yr 1 mo · Full-time · New York, NY
    • Wrote the Django service that now handles 88 million requests a day.
  5. Backend Engineer
    Oct 2015 - Sep 2018
    Adobe · 2 yr 11 mo · Full-time · New York, NY
    • Reduced cloud spend on public API by 28% in two quarters.

References

No references yet.

Education

  1. Columbia University
    BA, Information Technology
    2010 - 2014

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