Сервис поиска работы №1 в Украине
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IOS-програміст
Город проживания:
Киев
Готов работать:
Удаленно
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OLEKSANDR HONCHARENKO
iOS Engineer
Residence Kyiv, Ukraine
Languages English, Ukrainian
Email [открыть контакты ](см. выше в блоке «контактная информация»)
Phone [открыть контакты ](см. выше в блоке «контактная информация»)
Career objective:
I’m passionate about creating valuable and meaningful mobile applications — my work
is truly my hobby. I aim to join a team of like-minded professionals where we can build
products that make a real difference in people’s lives.
I have a strong ambition to grow into a Team Lead role, mentoring junior developers
and fostering a culture of technical excellence. I focus on implementing best
engineering practices such as CI/CD automation, test coverage, and modern build
tools to ensure smooth, efficient development processes.
Summary:
With over 8 years of commercial experience in Swift, I specialize in building large-scale,
high-quality iOS applications with a focus on clean architecture, performance, and
elegant design. I closely collaborate with Product Managers and UI/UX Designers to
deliver user-friendly and innovative mobile experiences.
I take ownership of the full development cycle — from design and integration to
testing, debugging, and App Store delivery. Proactive in leading projects and
supporting teammates, I’m constantly learning and adopting modern Apple
technologies and industry trends to improve code quality and product value.
I’m deeply passionate about Apple’s ecosystem and experienced with App Store
Connect (iTunes Connect), as well as providing Level-2 support for released
applications.
Skills highlights:
Languages & Frameworks:
Swift, SwiftUI, UIKit, Combine, Cocoa Touch, AVFoundation, CoreLocation
Architecture & Patterns:
MVC, MVVM, MVP, Clean Architecture, TCA (The Composable Architecture)
UI Development:
Storyboard & Auto Layout, Size Classes, NIB/XIB files, and fully programmatic layouts
Networking & Data:
RESTful APIs, Firebase, Push Notifications, Google Maps SDK, Realm, Core Data
Tools & Practices:
Git (GitLab/GitHub), CI/CD, Memory Management, Modular Architecture, Dependency
Injection
Platforms:
iOS, iPadOS, watchOS
Experience:
Aug 2025 – Present | Freelance
Working on diverse iOS projects as an independent developer, focusing on modern,
high-performance Swift applications with clean architecture and strong UX principles.
Collaborating with clients to design, develop, and deliver end-to-end mobile solutions,
from initial concept and API integration to deployment and App Store release.
Key Focus Areas:
● Building custom SwiftUI components and reusable UI frameworks for scalable
apps.
● Integrating payment systems, REST APIs, and data persistence layers using Core
Data or Realm.
● Applying Clean Architecture and async/await–based concurrency for
maintainable, testable codebases.
● Providing technical consulting and code reviews for existing projects to improve
quality, performance, and architecture.
● Managing full delivery cycle — including CI/CD setup, TestFlight distribution,
and post-release support.
Tech Stack: Swift, SwiftUI, Combine, Core Data, Realm, REST API, XcodeGen, Fastlane,
GitLab/GitHub CI, Clean Architecture, MVVM.
Jan 2024 – Aug 2025 | UKRSibbank (BNP Paribas Group) | Fintech | Kyiv, Ukraine
UKRSib Online — a large-scale mobile banking app enabling users to manage their
financial life: perform domestic and international payments, view account balances,
track transactions, exchange currencies, and handle deposits and cards.
Key Contributions:
● Continuously maintaining and evolving the mobile banking application used by
hundreds of thousands of active users.
● Developed new high-impact features including improved payment flows,
enhanced card management, and localized UX updates.
● Participated in architectural modernization — migrating legacy UIKit
components to SwiftUI, optimizing Core Data usage, and integrating
async/await for concurrency safety.
● Implemented custom UI components (bottom sheets, navigation system,
shimmer loaders, toast banners) as part of a shared design system.
● Collaborated with backend, QA, and design teams to ensure feature reliability,
localization accuracy, and visual consistency across multiple environments.
● Supported CI/CD pipelines and Fastlane automation for TestFlight deployments
and lint/code-quality validation.
● Performed code reviews and mentoring of junior developers, ensuring
adherence to clean architecture and modular design principles.
Tech Stack: Swift, SwiftUI, Combine, Core Data, XcodeGen, Fastlane, GitLab CI, Clean
Architecture, async/await, MVVM, iOS 15–18.
Aug 2021 – Dec 2023 | Tranzzo | Fintech | Kyiv, Ukraine
OxiBank — a mobile banking application for individual clients, providing secure access
to personal accounts, transaction history, card management, and payment operations.
Key Contributions:
● Developed and maintained core banking features — account overviews,
transaction lists, payments, and authentication flows.
● Implemented UIKit-based architecture with custom reusable UI components to
ensure consistent design and performance.
● Integrated Realm database for efficient offline storage, caching, and data
synchronization.
● Worked closely with backend teams to improve API integration and data
consistency, ensuring a seamless client experience.
● Optimized app performance and implemented secure session handling,
improving responsiveness and reliability.
● Contributed to continuous delivery pipelines, including internal builds and QA
validation processes.
Tech Stack: Swift, UIKit, Realm, Combine, MVC/MVVM architecture, REST API, Git,
CI/CD.
Feb 2021 - July 2021 iOS/macOS Developer at Geniusee (technology company and
digital agency with clients from USA/GB/UAE)
I have been working with one macOS Project. It was a VPN service but after 6 months
the project was closed.
2018 – 2021 iOS Developer at WeAreBrain (technology company and digital agency
with clients from Europe and Africa)
During last 2.5 years with WeAreBrain I have been working on 3 projects
Praxis & Brico - mobile apps for large DIY retailer from the Netherlands and Belgium
We developed the mobile apps to be the main portal to the Praxis Plus and Brico
loyalty program, where customers will receive a host of loyalty benefits, including the
use of digital cards, the latest promotions and personal discounts. Aslo, I have been
working on development of new cool AR functionality
Audience:
Praxis - 405k of users
Brico - 24k of users
Apps links:
https://apps.apple.com/ua/app/praxis/id395524977
https://apps.apple.com/ua/app/mijn-brico/id1462744119
TheOptimal.me - fitness and wellness apps catered for people aged 50 and above
We have created an easy to use, intuitive platform (web and mobile apps) which uses
videos, articles, and how-to’s to share valuable information regarding health and
wellness. The client is from South Africa and started the promotion of the platform from
their native market. Then during the COVID time, the platform became even more
valuable than before and Forbes mentioned TOM in one of their articles. For now,
mobile applications are promoting in the US market, and my team and I supporting the
client in these activities applications are promoting in the US market, and my team and
I supporting client in these activities
App link: https://apps.apple.com/ua/app/theoptimal-me/id1453021144
iShipit - Dutch-based digital marketplace aimed at hiring local delivery couriers
For the couriers needing ease-of-access to the ishipit platform on the go, I have
developed a native mobile iOS application, which offer low energy use, and smart
notifications
Apps links:
https://apps.apple.com/ua/app/ishipit-shipper/id1502227161
https://apps.apple.com/ua/app/ishipit-zakelijk/id1530907134
Average projects duration: 6 months - 2 years
Average teams size: 6 - 10
Responsibilities:
● Closely collaborate with teammates both from the WeAreBrain team and clients
side
● Define, design and ship new features
● Participate in architecture planning
● Develop high-quality native iOS apps using Swift
● Profiling, code optimization, refactoring
● Mobile apps testing
2017 – 2018 iOS Developer at DTEK (big Ukrainian energetic and investment holding)
I have developed a mobile application for internal corporate usage
App link:
https://apps.apple.com/ua/app/%D0%BF%D0%BE%D1%80%D1%82%D0%B0%D0%B
B-%D0%B4%D1%82%D1%8D%D0%BA/id1309467843
2015 - 2017 iOS Developer at TaxiAdmin (product software development company
which is providing solutions for taxi businesses)
I have developed several iOS applications for taxi companies (like UBER, Uklon, etc.)
Apps link: https://apps.apple.com/us/developer/sergii-yefisko/id1032305922
Links for some other projects:
https://apps.apple.com/ua/app/gzavnili-delivery/id1211345830?mt=8
https://apps.apple.com/ua/app/ayadee-supply-chain-tracking/id1503219103
Education:
2012 – 2016 Master of Computer Engineering at Admiral Makarov National University
of Shipbuilding (Mykolayiv, Ukraine)
iOS Engineer
Residence Kyiv, Ukraine
Languages English, Ukrainian
Email [
Phone [
Career objective:
I’m passionate about creating valuable and meaningful mobile applications — my work
is truly my hobby. I aim to join a team of like-minded professionals where we can build
products that make a real difference in people’s lives.
I have a strong ambition to grow into a Team Lead role, mentoring junior developers
and fostering a culture of technical excellence. I focus on implementing best
engineering practices such as CI/CD automation, test coverage, and modern build
tools to ensure smooth, efficient development processes.
Summary:
With over 8 years of commercial experience in Swift, I specialize in building large-scale,
high-quality iOS applications with a focus on clean architecture, performance, and
elegant design. I closely collaborate with Product Managers and UI/UX Designers to
deliver user-friendly and innovative mobile experiences.
I take ownership of the full development cycle — from design and integration to
testing, debugging, and App Store delivery. Proactive in leading projects and
supporting teammates, I’m constantly learning and adopting modern Apple
technologies and industry trends to improve code quality and product value.
I’m deeply passionate about Apple’s ecosystem and experienced with App Store
Connect (iTunes Connect), as well as providing Level-2 support for released
applications.
Skills highlights:
Languages & Frameworks:
Swift, SwiftUI, UIKit, Combine, Cocoa Touch, AVFoundation, CoreLocation
Architecture & Patterns:
MVC, MVVM, MVP, Clean Architecture, TCA (The Composable Architecture)
UI Development:
Storyboard & Auto Layout, Size Classes, NIB/XIB files, and fully programmatic layouts
Networking & Data:
RESTful APIs, Firebase, Push Notifications, Google Maps SDK, Realm, Core Data
Tools & Practices:
Git (GitLab/GitHub), CI/CD, Memory Management, Modular Architecture, Dependency
Injection
Platforms:
iOS, iPadOS, watchOS
Experience:
Aug 2025 – Present | Freelance
Working on diverse iOS projects as an independent developer, focusing on modern,
high-performance Swift applications with clean architecture and strong UX principles.
Collaborating with clients to design, develop, and deliver end-to-end mobile solutions,
from initial concept and API integration to deployment and App Store release.
Key Focus Areas:
● Building custom SwiftUI components and reusable UI frameworks for scalable
apps.
● Integrating payment systems, REST APIs, and data persistence layers using Core
Data or Realm.
● Applying Clean Architecture and async/await–based concurrency for
maintainable, testable codebases.
● Providing technical consulting and code reviews for existing projects to improve
quality, performance, and architecture.
● Managing full delivery cycle — including CI/CD setup, TestFlight distribution,
and post-release support.
Tech Stack: Swift, SwiftUI, Combine, Core Data, Realm, REST API, XcodeGen, Fastlane,
GitLab/GitHub CI, Clean Architecture, MVVM.
Jan 2024 – Aug 2025 | UKRSibbank (BNP Paribas Group) | Fintech | Kyiv, Ukraine
UKRSib Online — a large-scale mobile banking app enabling users to manage their
financial life: perform domestic and international payments, view account balances,
track transactions, exchange currencies, and handle deposits and cards.
Key Contributions:
● Continuously maintaining and evolving the mobile banking application used by
hundreds of thousands of active users.
● Developed new high-impact features including improved payment flows,
enhanced card management, and localized UX updates.
● Participated in architectural modernization — migrating legacy UIKit
components to SwiftUI, optimizing Core Data usage, and integrating
async/await for concurrency safety.
● Implemented custom UI components (bottom sheets, navigation system,
shimmer loaders, toast banners) as part of a shared design system.
● Collaborated with backend, QA, and design teams to ensure feature reliability,
localization accuracy, and visual consistency across multiple environments.
● Supported CI/CD pipelines and Fastlane automation for TestFlight deployments
and lint/code-quality validation.
● Performed code reviews and mentoring of junior developers, ensuring
adherence to clean architecture and modular design principles.
Tech Stack: Swift, SwiftUI, Combine, Core Data, XcodeGen, Fastlane, GitLab CI, Clean
Architecture, async/await, MVVM, iOS 15–18.
Aug 2021 – Dec 2023 | Tranzzo | Fintech | Kyiv, Ukraine
OxiBank — a mobile banking application for individual clients, providing secure access
to personal accounts, transaction history, card management, and payment operations.
Key Contributions:
● Developed and maintained core banking features — account overviews,
transaction lists, payments, and authentication flows.
● Implemented UIKit-based architecture with custom reusable UI components to
ensure consistent design and performance.
● Integrated Realm database for efficient offline storage, caching, and data
synchronization.
● Worked closely with backend teams to improve API integration and data
consistency, ensuring a seamless client experience.
● Optimized app performance and implemented secure session handling,
improving responsiveness and reliability.
● Contributed to continuous delivery pipelines, including internal builds and QA
validation processes.
Tech Stack: Swift, UIKit, Realm, Combine, MVC/MVVM architecture, REST API, Git,
CI/CD.
Feb 2021 - July 2021 iOS/macOS Developer at Geniusee (technology company and
digital agency with clients from USA/GB/UAE)
I have been working with one macOS Project. It was a VPN service but after 6 months
the project was closed.
2018 – 2021 iOS Developer at WeAreBrain (technology company and digital agency
with clients from Europe and Africa)
During last 2.5 years with WeAreBrain I have been working on 3 projects
Praxis & Brico - mobile apps for large DIY retailer from the Netherlands and Belgium
We developed the mobile apps to be the main portal to the Praxis Plus and Brico
loyalty program, where customers will receive a host of loyalty benefits, including the
use of digital cards, the latest promotions and personal discounts. Aslo, I have been
working on development of new cool AR functionality
Audience:
Praxis - 405k of users
Brico - 24k of users
Apps links:
https://apps.apple.com/ua/app/praxis/id395524977
https://apps.apple.com/ua/app/mijn-brico/id1462744119
TheOptimal.me - fitness and wellness apps catered for people aged 50 and above
We have created an easy to use, intuitive platform (web and mobile apps) which uses
videos, articles, and how-to’s to share valuable information regarding health and
wellness. The client is from South Africa and started the promotion of the platform from
their native market. Then during the COVID time, the platform became even more
valuable than before and Forbes mentioned TOM in one of their articles. For now,
mobile applications are promoting in the US market, and my team and I supporting the
client in these activities applications are promoting in the US market, and my team and
I supporting client in these activities
App link: https://apps.apple.com/ua/app/theoptimal-me/id1453021144
iShipit - Dutch-based digital marketplace aimed at hiring local delivery couriers
For the couriers needing ease-of-access to the ishipit platform on the go, I have
developed a native mobile iOS application, which offer low energy use, and smart
notifications
Apps links:
https://apps.apple.com/ua/app/ishipit-shipper/id1502227161
https://apps.apple.com/ua/app/ishipit-zakelijk/id1530907134
Average projects duration: 6 months - 2 years
Average teams size: 6 - 10
Responsibilities:
● Closely collaborate with teammates both from the WeAreBrain team and clients
side
● Define, design and ship new features
● Participate in architecture planning
● Develop high-quality native iOS apps using Swift
● Profiling, code optimization, refactoring
● Mobile apps testing
2017 – 2018 iOS Developer at DTEK (big Ukrainian energetic and investment holding)
I have developed a mobile application for internal corporate usage
App link:
https://apps.apple.com/ua/app/%D0%BF%D0%BE%D1%80%D1%82%D0%B0%D0%B
B-%D0%B4%D1%82%D1%8D%D0%BA/id1309467843
2015 - 2017 iOS Developer at TaxiAdmin (product software development company
which is providing solutions for taxi businesses)
I have developed several iOS applications for taxi companies (like UBER, Uklon, etc.)
Apps link: https://apps.apple.com/us/developer/sergii-yefisko/id1032305922
Links for some other projects:
https://apps.apple.com/ua/app/gzavnili-delivery/id1211345830?mt=8
https://apps.apple.com/ua/app/ayadee-supply-chain-tracking/id1503219103
Education:
2012 – 2016 Master of Computer Engineering at Admiral Makarov National University
of Shipbuilding (Mykolayiv, Ukraine)
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