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Eugene Korotky

@eugenekorotky

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Senior iOS engineer driving reliable, high-performance mobile apps.

Poland

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What I'm looking for

I seek a role where I can lead iOS architecture and reliability initiatives, mentor engineers, and deliver high-impact mobile features in a collaborative, quality-driven team.

I am a Senior iOS engineer with eight years of hands-on experience building reliable, scalable mobile applications across social networking, mobility, marketplace, and secure communication domains.

I focus on architectural modernization and runtime stability, having reduced crash rates and boosted performance through profiling, memory/concurrency fixes, and modular Swift component design.

I've led teams and hiring efforts as an interim team lead, mentored engineers from junior to mid-level, and collaborated with cross-functional teams to deliver large-scale apps and improve app performance.

My engineering ethos centers on code quality, ownership, and delivering measurable improvements in reliability and speed while maintaining secure and compliant implementations.

Experience

Work history, roles, and key accomplishments

Current

Senior iOS Engineer

Current

Fluidtime Data Services

Sep 2022 - Present (3 years 4 months)

Designed and implemented modular Swift components using MVVM+C, fixed memory and concurrency issues to reduce crash rate by 25%, and developed background processing and WebSocket layers for live updates.

Swift MVVM WebSockets Concurrency Memory Management SwiftUI Profiling

Senior iOS Engineer

EPAM Systems

Aug 2021 - Sep 2022 (1 year 1 month)

Owned MVP feature delivery for a large-scale marketplace (15M+ users), improved app performance by 15%, led hiring efforts (30+ interviews), and mentored engineers to improve team capability.

Swift Objective C Team Leadership Mentoring Performance Optimization Hiring Code Review

iOS Engineer

EffectiveSoft

Jun 2019 - Aug 2021 (2 years 2 months)

Delivered 10+ production apps across business, health, utilities and social domains, modernized core modules from Objective-C to Swift, and integrated Firebase Analytics and Crashlytics for real-time app health visibility.

Swift Objective C Firebase Firebase Crashlytics Migration CI CD

iOS Engineer

SmartFort

Dec 2017 - Jun 2019 (1 year 6 months)

Developed a secure messaging app with encrypted networking and offline caching, maintained data safety and compliance, and enhanced a seamless secure user experience.

Caching Security Objective C Swift Data Security