Jakub Towarek

I am engineer focused on delivering the best possible experience to Apple users. After hours I write this blog and tinker with IoT and 3D printing. Long walk with my Flat Coated Retriever and running is what helps me relax.

[email protected] | GitHub | Linked In

📡 Technologies

• 💅 SwiftUI UIKit

• 🪢 Combine Concurency RxSwift

• 🗺️ Git Git Flow Semantic Versioning Metapod Keeping a Changelog

• 🧦 Swift Package Manger Cocoapods Carthage

• 🌍 REST API GraphQL WebSockets Starscream

• 🦺 Bitrise App Center TestFlight Crashlitycs Firebase Analytics

• 📸 Snapshot Testing BDD

🥷 Experience

SumUp | iOS Engineer, Online Store Tribe

February 2023 ~ Present

• work in Spotify's Agile model - tribes, squads, etc in a multirepo setup
• fix bugs in legacy design system codebase
• provide actionable feedback and suggest "quick wins" on UI designs both for iPad and iOS
• migrate key screens to SwiftUIs
• correct multithreading issues
• monitor app stability post release
• standardise the codebase with common patterns, names etc
• reserch serving quill.js via WebView as altrnative to creating a native solution
• evangelise Backend For Frontend pattern as solution to agreggating multiple sequential API calls

Dispo | iOS Engineer

January 2022 ~ February 2023

• independently implement new features in existing codebase
• redesign, optimise and expand capabilities of real time image processing system
• work closely with design team on release of image editing suite and introduction of new camera effects
• maintain stability by monitoring and prioritising crashes and non-fatal errors
• improve performance and readability of asset caching mechanism using async await pattern
• prepare features to be released as part of AB experiments in order to minimise potential negative outcome
• create and upload new app versions to the App Store Connect
• progressively refactor The Composable Architecture to MVVM with SwiftUI, Combine and async await
• experiment with disparity based depth measuring techniques for advance 3D photo effects

Netguru | iOS Research and Development Lead

August 2021 ~ January 2022

• coordinate AR virtual try-on app development
• filter iOS trends and news to select
• advise and provid feedback on blogpost or presentations
• align team members' needs with research topics

Netguru | iOS Developer

January 2020 ~ January 2022

Design System For Food Delivery Company

• design common interfaces for Android, iOS and Flutter
• write extensive documentation
• cover components with screenshot tests and UI Tests

Voice Assistant App For Easy CRM Access

• lead architecture design with SwiftUI and Combine
• implement on-device speech transcription
• interact with serverless backend via websockets
• advance communicated project value to stakeholders through analytics
• monitor and prioritise crashes and errors

IoT App For Startup

• add new features in obscure codebase
• fix critical security vulnerabilities in Firebase Authentication

Netguru | Junior iOS Developer

October 2019 ~ January 2020

💡 Open Source

SwiftOLED & SwiftGFX

Two Swift libraries developed while tinkering with Raspberry Pi and SwiftOnArm. I wanted to use Swift, but there wasn't a library that would let me display data on external OLED display, so I created two - one for drawing pixel buffer on the screen and second one, a graphics library, capable of rendering text to pixel buffer. Both have nice READMEs. I even got some contributions.

📢 Languages

I am fluent in English - I hold IELTS C1 certificate.

📚 Education

After finishing technical high school and passing IT Specialist certification I started Applied Computer Science major at Newcastle University in UK. Shortly after, I got accepted for junior iOS developer position, so I dropped out.