RKRoman Kozko
@romankozko
Mobile Engineer specializing in iOS and Flutter development.
BelarusWhat I'm looking for
As a dedicated Mobile Engineer with over 5 years of experience, I have honed my skills in developing high-performance applications for both iOS and cross-platform environments. My expertise lies in utilizing Swift, Flutter, and various frameworks to create seamless user experiences. I take pride in my ability to enhance application performance, as evidenced by my success in increasing crash-free user rates significantly across multiple projects.
Throughout my career, I have successfully implemented complex features such as deep-linking, push notifications, and custom token transaction handling. My commitment to quality is reflected in my ability to improve test coverage and optimize memory management, ensuring robust and reliable applications. I thrive in collaborative environments and am always eager to embrace new challenges that push the boundaries of mobile technology.
Experience
Work history, roles, and key accomplishments
Cross-platform SDK Developer
Scand
Jul 2020 - Present (5 years)
Implemented support for mixed left-to-right (LTR) and right-to-left (RTL) text, increasing customers from the Middle East. Improved performance of book’s page generation by 10% and developed an AR plugin.
Book Reader Developer
Scand
Jul 2020 - Present (5 years)
Fixed 95% of memory leaks with manual reference counting and increased crash-free users rate from 85% to 95%. Improved background fetching by rewriting to new foundation API and fixed in-app purchases.
Mobile Engineer
Scand
Jul 2020 - Present (5 years)
Implemented integration with all DApps compatible with WalletConnect protocol on ETH-based blockchains, and increased crash-free users rate from 92% to 99.5%. Improved performance of screens with a large amount of content and requests by 20%.
Sports Betting App Developer
Scand
Jul 2020 - Present (5 years)
Fixed all found memory leaks and reduced application space and cache by 40%. Improved app performance by 20% and implemented an offline mode.
Cross-platform Crypto Wallet Developer
Scand
Jul 2020 - Present (5 years)
Created CI/CD pipelines for TestFlight and publishing builds, increasing crash-free users rate from 95% to 99.8%. Implemented custom token transaction handling based on Tron blockchain and interaction with key smart contracts.
Education
Degrees, certifications, and relevant coursework
BRBelarusian State University of Informatics and Radioelectronics
Bachelor's degree in CS, Information Technology Software
Studied Information Technology Software at the Faculty of Computer Systems and Networks. Gained a comprehensive understanding of computer science principles and software development.
Availability
Location
BelarusAuthorized to work in
Job categories
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