I’m Senior iOS developer with over 5 years of experience in iOS development. I’m highly interested in mobile security and constantly working on those skills.

In my experience I worked on multiple projects like:

  • MyTherapy: Medication Reminder
  • Big and complex app that supports thousands of shop owners in Poland
  • Banking application for managing and uploading financial documents
  • FinTech app offering loans
  • IoT smart home app
  • and more

🌱 Skills I’m currently working on

  • iOS modularization
  • SwiftUI & Combine

👷 My contributions

My skills

Skill Rating Comment
Swift ⭐⭐⭐⭐⭐  
Objective-C ⭐⭐ Refactored old code in Objective-C and fixed bugs
Architecture patterns ⭐⭐⭐⭐⭐ Worked with MVVM, MVC, MVP, VIPER, Coordinators, structural, behavioral, creational patterns and many others.
SOLID principles ⭐⭐⭐⭐⭐  
iOS Security ⭐⭐⭐⭐⭐  
Android security ⭐⭐  
ARC ⭐⭐⭐⭐⭐  
Autolayout ⭐⭐⭐⭐⭐  
SwiftUI ⭐⭐⭐  
UIKit ⭐⭐⭐⭐⭐  
CI ⭐⭐⭐⭐ Used Bitrise and Jenkins in commercial work
Unit Tests ⭐⭐⭐⭐⭐  
Quick/Nimble ⭐⭐⭐⭐  
Combine ⭐⭐⭐  
RxSwift ⭐⭐⭐⭐  
UITests ⭐⭐⭐  
Git ⭐⭐⭐⭐⭐  
Git flow ⭐⭐⭐⭐⭐  

CodeWars profile

https://www.codewars.com/users/karolpiatek