Ewa Szymanski

Overview

16 years in software engineering, the last 4 at Wren Health, where I lead the iOS team. Shipped 29 launches on the iOS team without a rollback. Shipped a rewrite that took build times from 42 minutes to under 3. Before that: Wise and Supercell. I teach a weekend class on Core Data.

Replies between meetings, usually same day

Experience

1. Senior Engineering Manager

   Jul 2022 - Present
   Wren Health · 4 yr 3 mo · Full-time · Tallinn, Estonia
   • Shipped a rewrite that took build times from 29 minutes to under 4.
   • Reduced cloud spend on iOS by 45% in two quarters.
2. Senior iOS Engineer

   Feb 2021 - Jul 2022
   Wise · 1 yr 5 mo · Full-time · Tallinn, Estonia
   • Wrote the Combine service that now handles 26 million requests a day.
3. iOS Engineer

   Sep 2019 - Feb 2021
   Supercell · 1 yr 5 mo · Full-time · Tallinn, Estonia
   • Moved 83% of iOS traffic off a legacy monolith without a customer-facing incident.
   • Rebuilt onboarding in SwiftUI and lifted day-one retention 10%.
4. Engineering Manager

   Aug 2016 - Sep 2019
   Maersk · 3 yr 1 mo · Full-time · Tallinn, Estonia
   • Led the migration of 70 services to SwiftUI.
5. iOS Engineer

   Aug 2014 - Aug 2016
   Ericsson · 2 yr · Contract · Tallinn, Estonia
   • Moved 65% of iOS traffic off a legacy monolith without a customer-facing incident.

Projects

No references yet.

Education

1. Bocconi University

   BSc, Electrical Engineering
   2006 - 2009