Sophie Maddie Ward

Overview

Principal Engineer at Northwind Security, focused on mobile apps. Built the experimentation framework 14 product teams use to ship changes safely. Grew the Android team from 3 to 21 engineers. Swimming before work keeps me sane.

Checks messages twice a week

Experience

1. Principal Engineer

   Apr 2023 - Present
   Northwind Security · 3 yr 6 mo · Contract · Melbourne, Australia
   • Previously an operator for 8 years before investing.
   • Led or co-led 36 investments, 3 of them now at Series B or later.
   • Sit on 7 boards.
2. Senior Android Engineer

   Dec 2020 - Apr 2023
   Alibaba Group · 2 yr 4 mo · Full-time · Melbourne, Australia
   • Shipped 18 launches on the Android team without a rollback.
   • Cut p99 latency on the Android services from 766ms to 55ms.
3. Staff Android Engineer

   Jun 2017 - Dec 2020
   Commonwealth Bank · 3 yr 6 mo · Full-time · Melbourne, Australia
   • Mentored 9 engineers through their first promotion.
   • Shipped a rewrite that took build times from 36 minutes to under 6.
4. Engineering Manager

   Nov 2015 - Jun 2017
   Hyundai Motor · 1 yr 7 mo · Full-time · Melbourne, Australia
   • Wrote the MVVM service that now handles 63 million requests a day.
   • Cut p99 latency on the Android services from 770ms to 171ms.
5. Senior Android Engineer

   Jan 2013 - Nov 2015
   Mastercard · 2 yr 10 mo · Full-time · Melbourne, Australia
   • Brought on-call pages for Android down from 31 a week to 2.
   • Shipped a rewrite that took build times from 33 minutes to under 3.

No references yet.

Education

1. Yonsei University

   BA, Electrical Engineering
   2004 - 2008