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Teresa Alejandra Castro

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VP of Engineering, Ivory Mobility - Jetpack Compose · Coroutines · Gradle

Works at
Ivory Mobility
Location
Seattle, WA · PT (UTC-8)
Experience
14+ years experience
Education
Stanford University
Languages
English
Message Connect

Overview

I lead mobile apps at Ivory Mobility in Seattle. Led the migration of 27 services to Android performance. Before that: Capital One and Twilio.

Good reasons to reach out
  • Thoughtful intros to people in my field
  • Questions about mobile apps
Please don't message about
  • Offshore staffing offers
  • Unpaid work or spec projects
  • Courses and coaching offers

Checks messages twice a week

Skills
GradleCoroutinesJetpack ComposeAndroid performance

Experience

  1. VP of Engineering
    Jun 2022 - Present
    Ivory Mobility · 4 yr 5 mo · Full-time · Seattle, WA
    • Reduced cloud spend on Android by 27% in two quarters.
    • Led the migration of 26 services to Android performance.
  2. Principal Engineer
    Apr 2021 - Jun 2022
    Capital One · 1 yr 2 mo · Full-time · Seattle, WA
    • Sit on 3 boards.
    • Previously an operator for 8 years before investing.
  3. Android Engineer
    Mar 2018 - Apr 2021
    Twilio · 3 yr 1 mo · Full-time · Seattle, WA
    • Wrote the Jetpack Compose service that now handles 6 million requests a day.
  4. Principal Engineer
    Sep 2015 - Mar 2018
    MongoDB · 2 yr 6 mo · Full-time · Seattle, WA
    • Backed 15 founders at pre-seed and seed.
    • Led or co-led 16 investments, 9 of them now at Series B or later.
  5. Director of Engineering
    Jul 2012 - Sep 2015
    Starbucks · 3 yr 2 mo · Full-time · Seattle, WA
    • Cut cold-start time on low-end Android phones by 36%.
    • Built the experimentation framework 36 product teams use to ship changes safely.

Projects

Side project: a reading list app
2026

Built with Android performance and Gradle. 2531 people used it last year.

References

No references yet.

Education

  1. Stanford University
    BS, Information Technology
    1993 - 1997

Details

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