Nazar K.

HyperJar is a UK-based financial technology company offering a digital wallet application that helps users manage money, spending, and transactions.

• Developed and maintained features for the HyperJar iOS application using Swift, UIKit, GraphQL, and related iOS technologies.
• Built scalable and maintainable mobile functionality for a digital wallet product focused on secure money management and transactions.
• Wrote and maintained unit and integration tests to validate application behavior and support release stability.
• Supported CI/CD pipelines using Bitrise, helping streamline build, testing, and deployment processes.
• Collaborated with the development team to improve application performance, maintainability, and reliability across releases.

Through Amach Software, worked on an European Airline's iOS application, supporting booking, reservation management, marketing, and customer-facing travel features.

• Developed and maintained features for a European airline's iOS application using Swift, Objective-C, UIKit, SwiftUI, Core Data, and REST APIs.
• Improved application performance, scalability, and maintainability across booking, reservation management, and travel-related user flows.
• Designed and implemented scalable, maintainable, and testable architecture based on Clean Architecture principles.
• Created and maintained CI/CD pipelines using Jenkins, Fastlane, and Gradle to automate build, testing, and deployment processes.
• Contributed to the migration of a large legacy Objective-C codebase to Swift, increasing the Swift share of the project from approximately 20% to 85%.
• Led the development of a server-driven UI solution for mobile promotions, enabling campaign updates without requiring new app releases.
• Contributed to a mobile promotions solution that generated €20 million in additional sales within three months.
• Collaborated with product, backend, CMS, architecture, and mobile teams to translate business requirements into effective iOS solutions.
• Led iOS developers in architecture, technical planning, implementation decisions, and release quality.

Delivered a project for an European Airline, an Irish airline providing flight booking, reservation management, and travel services through customer-facing web and mobile applications.

• Led a team of automation engineers responsible for developing and maintaining automated test scripts for a European airline's mobile applications.
• Built mobile automation solutions using Java, Groovy, Appium, Jenkins, Gradle, TestNG, and Sauce Labs.
• Improved the mobile testing architecture by introducing new frameworks, methodologies, and automation tools.
• Reduced regression testing time from four hours to 50 minutes without reducing test coverage.
• Collaborated with engineering teams to understand business requirements and design automated tests aligned with product requirements.
• Maintained CI/CD pipelines for mobile applications, supporting faster and more reliable testing and release processes.
• Contributed to improving the quality and stability of the European airline's mobile applications through structured automation and release testing.

Hive Social is a social media technology company providing iOS and Android mobile applications for user communication and content sharing.

• Designed, developed, and executed automated test scripts for iOS and Android mobile applications.
• Built iOS automation tests using XCUITest and Swift, and Android automation tests using Espresso.
• Served as QA Lead, organizing testing activities and supporting release processes throughout the project.
• Collaborated with developers to align testing scope with project timelines, business requirements, and release plans.
• Analyzed test results, reported issues, and followed up with development teams to support their timely resolution.
• Reviewed and improved testing processes, tools, and methodologies to increase product reliability and test coverage.