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Eugene Filipkov

@eugenefilipkov

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Senior iOS developer, 15+ years. Team lead, Swift 6, watchOS, CI/CD. Shipped apps with 670K DAU and 50M+ installs.

Poland

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What I'm looking for

I want to build robust, user-centric iOS apps with strong architecture and release discipline. I’m motivated by leading teams, improving quality and performance, and using experimentation to align technical decisions with business outcomes.

I’m a Senior iOS Developer with 15+ years of software engineering experience, including 10+ years focused on building scalable, high-quality iOS applications used by hundreds of thousands of users worldwide. I lead iOS teams of 2–5 engineers, owning technical direction, architecture, delivery, and code quality—while also conducting interviews, mentoring junior and mid-level developers, and contributing to hiring and team growth. I care deeply about balancing technical excellence with business goals, and I’ve built a reputation for shipping robust, user-centric products.

In recent roles, I’ve driven measurable improvements across the iOS stack: migrating legacy Objective-C to Swift, moving to SPM with modular shared packages, creating reusable ads/IAP/analytics services, and running A/B tests via feature flags and remote config to lift conversion and ARPU. I’ve tightened release performance through Fastlane CI/CD, strengthened quality with XCTest/XCUITest and CI quality gates, and accelerated incident response using observability (Crashlytics, structured logging, metrics dashboards). Earlier in my career, I also contributed to game development and university teaching in computer science and mobile development, which keeps me grounded in clear problem-solving and mentorship.

Experience

Work history, roles, and key accomplishments

Current

Senior iOS Developer

Current

BrainSoft Apps

Jul 2025 - Present (1 year)

Migrated legacy Objective-C to Swift and modularized 5+ apps with Swift Package Manager (SPM), improving build and feature delivery speed. Implemented reusable ads/IAP/analytics services, ran A/B tests via feature flags and remote config, and set up Fastlane CI/CD plus observability with Crashlytics and metrics.

Swift Objective C Swift Package Manager Fastlane CI CD A B Testing Analytics

Senior iOS Developer

Appvillis UAB

Apr 2024 - Apr 2025 (1 year)

Introduced XCTest/XCUITest coverage and CI quality gates to reduce production regressions, and set up Crashlytics, structured logging, and feature flags for safer rollouts. Improved app stability and security (Keychain, data protection, privacy-by-design) and delivered features across iOS and watchOS, including speech recognition and paywall/onboarding optimization.

XCTest XCUITest Quality Gates Keychain Privacy By Design Performance Profiling Audio Recording Onboarding Experiments KYC VPN Integration A B Testing

Senior iOS Developer

Origins Digital

Mar 2014 - Jul 2023 (9 years 4 months)

Designed and delivered complex iOS applications (40+ screens) and built widgets and watchOS companion apps for live scores and content updates. Led iOS teams of 2–5 engineers and implemented XCTest/XCUITest strategy, Crashlytics observability, Fastlane-based CI/CD, reusable modular libraries, and paywall/subscription A/B experimentation to reduce regressions and improve conversion.

iOS app development Widgets XCTest XCUITest Code Review Metrics Keychain Data Protection Privacy By Design Fastlane CI CD Zeplin To Swift Pipeline Kotlin Multiplatform A B Testing

iOS Developer

Coherent Solutions

Feb 2013 - Feb 2014 (1 year)

Developed and supported iOS and Android applications, including integration with external devices via Bluetooth Low Energy (BLE). Maintained and optimized cross-platform apps built with PhoneGap.

iOS Android Bluetooth Low Energy PhoneGap Cross Platform Development

Teacher / Assistant

Belarusian State University of Informatics&Radioelectronics

Sep 2010 - Jun 2013 (2 years 9 months)

Taught undergraduate students computer science topics including Object-Oriented Programming, algorithms, and data structures, as well as database systems and relational modeling. Delivered courses in mobile development for iOS and Android and mentored students through practical programming tasks.

Object Oriented Programming Algorithms Data Structures DataBase Systems Database Modeling iOS Development Android Development Mentorship