Yevhenii Petrenko
Odesa, Ukraine
Summary
Senior iOS Developer with extensive experience in designing and shipping native iOS applications. Successfully reduced crash rates by 40% through Firebase integration while implementing MVVM architecture to enhance code testability and maintainability. Collaborates effectively within Agile teams, driving continuous improvement and delivering quality user experiences.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Senior iOS Developer
Avirise
07.2023 - 08.2025
- Developed and maintained multiple iOS applications serving 50K+ users using Swift and UIKit
- Implemented MVVM architecture with Combine, improving code testability and maintainability
- Integrated Firebase Analytics and Crashlytics, reducing crash rate by 40%
- Built complex UI components with Auto Layout, supporting Dynamic Type and accessibility
- Collaborated with cross-functional teams using Git branching strategies and code reviews
iOS Developer
Intelini
02.2022 - 07.2023
- Designed and developed new app features using Swift, UIKit, and Core Data
- Migrated legacy MVC modules to MVVM with Coordinator pattern
- Implemented RESTful API integration with Alamofire and Codable models
- Configured CI/CD pipelines with Fastlane, automating builds and TestFlight distribution
- Wrote unit tests with XCTest, achieving 70%+ code coverage on business logic
Junior iOS Developer
Asedo
07.2021 - 01.2022
- Developed iOS application screens using UIKit with programmatic Auto Layout to enhance user interface consistency
- Integrated REST APIs and handled JSON parsing using URLSession and Codable
- Implemented local data persistence with Realm and UserDefaults to ensure data retention and improve user experience
- Contributed to Agile/Scrum ceremonies and daily stand-ups to support team collaboration and project alignment
Education
Master's degree - Radio, Tele and Information Security, Information security / Cybersecurity
Odessa National Telecommunications Academy
Odessa, Ukraine01-2021
Skills
- Swift Professional
- Swift development
- UIKit Professional
- SwiftUI Experienced
- SwiftUI framework
- Combine Experienced
- Core Data Experienced
- MVVM architecture
- Auto Layout
- API integration
- Firebase integration
- Push notifications handling
- CloudKit services
- CoreML integration
- Multithreading
- In-app purchases
- Mobile analytics integration
- CI/CD expertise
- CI/CD pipelines
- Git Experienced
- App development
- iOS frameworks expertise
- App store deployment
Certification
iOS Development, ITEA, 2021
Languages
- English, B2 - Upper Intermediate
- Ukrainian, Native
Job Titles
- Senior iOS Developer
- Lead iOS Developer
- IOS Engineer
- Mobile Developer
- Swift Developer
- Apple Platform Engineer
Personal Qualities
- Detail-oriented
- Self-motivated
- Team player
- Problem solver
- Fast learner
- Responsible
- Proactive
Availability
contract, full-time
Timeline
Senior iOS Developer
Avirise
07.2023 - 08.2025
iOS Developer
Intelini
02.2022 - 07.2023
Junior iOS Developer
Asedo
07.2021 - 01.2022
Master's degree - Radio, Tele and Information Security, Information security / Cybersecurity
Odessa National Telecommunications Academy