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Location

Ukraine

Rate

$22  / per hour

Years of experience

5+

About

I have extensive experience in iOS development, working with technologies like Swift, SwiftUI, MVVM, Combine, and RxSwift. As part of a 20+ developer team, I owned the FitAnalytics feature, improved test coverage, and maintained the codebase. My responsibilities included integrating new unit/UI tests, supporting and improving features, and mentoring junior developers. At Mellow App, I architected iOS and WatchOS applications from scratch, designing them with the latest SwiftUI features, though the project was ultimately closed due to Apple's policy restrictions. At Optherium Labs, I contributed to a B2B white-label neo banking solution, utilizing a tech stack that included Swift, VIPER, and Kotlin. My duties involved UI testing with Selenium, test automation using CI/DI and Python, and adding new features. In the Priority Lab project, I enhanced app stability and transitioned from Objective-C to Swift. Leading a small team at HoozAround, I migrated projects from Objective-C to Swift and implemented features for location tracking and user movements. At HiBye, I was the sole iOS developer, working extensively with map APIs and developing user authentication flows. I hold a Bachelor’s degree in Cybersecurity from Lviv Polytechnic National University.

Tech Stack

IOS, MVVM, Swift, SwiftUI

Experience

  • • Managed and owned the FitAnalytics feature, overseeing its development, maintenance, and improvement.
  • • Integrated new unit and UI tests for both new and existing features, ensuring robust and reliable code quality.
  • • Mentored and supported junior developers, providing guidance and helping them improve their skills.
  • • Architected and designed iOS and WatchOS apps from scratch, leveraging the latest SwiftUI features.
  • • Conducted UI testing using Selenium on Android/iOS platforms and automated tests using CI/DI and Python.
  • • Led the migration of projects from Objective-C to Swift, ensuring smooth transitions and maintaining functionality.
  • • Developed new features and improved existing ones, utilizing a variety of technologies and frameworks like Swift, UIKit, and various APIs for enhanced app functionality.

Employment history

Solo Engineer / Researcher, Alty August 2023 - Present

• Leveraged the latest Mapbox SDKs to create advanced, custom map features and utilities, integrating geojson and CSV data to enhance the application’s mapping capabilities.
• Created prototypes and conducted thorough investigations into technical restrictions and feasibility, ensuring that the application’s architecture and features were both innovative and practical.
• Acted as the primary point of contact for clients, handling all communications related to technical requirements and progress, and meticulously planning future development cycles to align with client needs and project goals.

Feature Owner, New Look March 2022 - April 2023

• Developed and integrated comprehensive unit and UI tests for new and existing features to ensure code reliability and functionality.
• Utilized modern testing frameworks and tools to automate testing processes, improving efficiency and coverage.
• Provided ongoing support for existing features, troubleshooting and resolving issues to maintain optimal performance.
• Enhanced and refactored new features, ensuring they met user requirements and adhered to best practices.
• Offered guidance and mentorship to junior developers, helping them to understand complex concepts and improve their coding skills.
• Conducted code reviews and provided constructive feedback, fostering a collaborative and educational development environment.

IOS Developer, Mellow App March 2022 - April 2022

• Designed and developed iOS and WatchOS applications from the ground up, ensuring a scalable and maintainable architecture.
• Utilized SwiftUI and the latest Apple technologies to create robust, high-performance applications tailored to both platforms.
• Crafted intuitive and visually appealing user interfaces for iOS and WatchOS apps using SwiftUI, focusing on a seamless user experience and adherence to Apple’s design guidelines.
• Implemented responsive designs that catered to various device sizes and orientations, optimizing the user experience across different screens.
• Incorporated the latest features and updates from SwiftUI to leverage new functionalities and improve app performance and aesthetics.
• Kept up-to-date with SwiftUI advancements and best practices, integrating them into the app development process to ensure cutting-edge solutions.

Feature Owner, Optherium Labs June 2022 - April 2022

• Developed and executed automated UI tests using Selenium to ensure consistent functionality across Android and iOS platforms.
• Identified and fixed UI-related issues, maintaining a high standard of user experience and interface reliability.
• Implemented continuous integration and deployment (CI/CD) pipelines to automate the testing process, enhancing efficiency and reducing manual intervention.
• Utilized Python scripts for test automation, ensuring comprehensive coverage and rapid feedback on code changes.
• Took ownership of specific features, leading their development from conception through to deployment and maintenance.
• Collaborated with cross-functional teams to gather requirements, design, and implement new features, ensuring they met user needs and aligned with project goals.

IOS Developer, Priority Lab January 2019 - January 2020

• Conducted thorough code reviews and debugging sessions to identify and resolve stability issues within the application.
• Implemented best practices for error handling and performance optimization to enhance the overall reliability of the app.
• Designed and developed new features by effectively reusing and integrating existing UIKit components.
• Ensured seamless integration of new functionalities with the existing codebase, maintaining a consistent user experience.
• Led the initiative to import and integrate Swift programming language into the project, enhancing code readability and maintainability.
• Refactored existing Objective-C code to Swift, ensuring smooth transitions and compatibility while leveraging Swift’s modern features and capabilities.

Feature Owner, HoozAround February 2019 - June 2020

• Took full ownership of specific features, overseeing their development from initial concept through to deployment and ongoing maintenance.
• Designed and implemented new features, ensuring they met user needs and integrated seamlessly with the existing application.
• Developed and integrated functionality for tracking user location and movements using GPS and CoreMotion technologies.
• Ensured accurate and efficient location tracking, providing users with reliable and responsive features related to their movement and location data.
• Implemented basic CI/CD practices to automate the build, test, and deployment processes, improving development efficiency and code quality.
• Set up and maintained CI/CD pipelines, ensuring smooth and reliable delivery of application updates.
• Led the migration process of the project’s codebase from Objective-C to Swift, enhancing code maintainability and leveraging Swift’s modern features.
• Refactored existing Objective-C code to Swift, ensuring functionality was preserved and improved during the transition.

iOS Developer, HiBye (or Globo) January 2019 - February 2019

• Served as the primary and only iOS developer, taking full responsibility for the development and maintenance of the iOS application.
• Managed all aspects of the iOS development process, from initial planning and design to coding, testing, and deployment.
• Integrated Google Maps and Apple Maps APIs to provide advanced mapping and location-based services within the application.
• Developed custom map features and functionalities, ensuring a seamless and interactive user experience.
• Designed and implemented user interfaces using Swift and UIKit, focusing on creating intuitive and user-friendly experiences.
• Developed and integrated secure user authentication flows, ensuring reliable and efficient user access and data protection.
• Identified and developed new features to enhance the application’s functionality and user engagement.
• Continuously improved existing features based on user feedback and technological advancements.

Education history

Lviv Polytechnic National University January 2000 - January 2004 Bachelor Degree in Cybersecurity
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I agree to and accept that DevsData LLC will provide better user experience by collecting, analyzing and cataloging information about Internet electronic addresses that I have connected with my devices and about the type of my devices (such as the type and version of software) as well as by making automatic decisions (not involving sensitive data). The agreement applies for the legally binding period, or until either the user or DevsData LLC withdraws from the agreement. Withdrawing from the agreement will result in removing the user's data. Please see our privacy policy.

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