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Sergey Slavinskiy

@sergeyslavinskiy

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Senior iOS Engineer passionate about code quality and user experience.

Poland

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What I'm looking for

I am looking for a role that values innovation, teamwork, and opportunities for professional growth.

With over a decade of experience in iOS app development, I am a self-starter who is deeply passionate about code quality and enhancing user experience. My journey has equipped me with a nuanced understanding of framework and UI conventions across Apple platforms. I pride myself on my ability to communicate effectively with stakeholders and fellow developers, ensuring that projects run smoothly and efficiently.

In my most recent role as an iOS Tech Lead at Cotvec LLC, I led the iOS team, focusing on their growth through mentorship and improved recruitment strategies. I automated various processes in iOS development, which resulted in a 25% acceleration of our development cycle. My technical expertise includes modern technologies such as SwiftUI, Combine, and Firebase, which I have leveraged to enhance app performance and analytics quality significantly.

Throughout my career, I have consistently aimed to elevate user experience and app performance. From implementing complex custom UIs to introducing Test Driven Development practices, my goal has always been to deliver high-quality applications that meet user needs and exceed expectations.

Experience

Work history, roles, and key accomplishments

Current

iOS Tech Lead

Current

Cotvec LLC

Oct 2020 - Present (4 years 7 months)

Led the iOS team, mentoring junior developers and improving recruitment. Automated development processes and developed apps using modern technologies, enhancing the development cycle by 25% and analytics quality by 70%.

Swift SwiftUI Combine Code Review Team Leadership Backlog Management

Senior iOS Engineer

Coople

Oct 2018 - Oct 2020 (2 years)

Maintained RIBs architecture and implemented unidirectional data flow. Improved application performance and created a design system, reducing screen creation time by 35%. Collaborated with cross-functional teams to define features.

RxSwift RxCocoa Realm UI Components Performance Cross Functional Collaboration

Senior iOS Engineer

Synesis

Oct 2015 - Oct 2018 (3 years)

Developed applications purely in Swift, introduced Firebase Crashlytics, and implemented Core Data in a multithreaded environment. Redesigned app architecture and improved performance, increasing retention rate by 40%.

Swift Firebase Crashlytics Core Data MVVM Test Driven Development Performance Optimization Multithreading App Architecture

iOS Engineer

Wallet One

Aug 2013 - Oct 2015 (2 years 2 months)

Explored Cocoa framework and developed UI animations. Organized app architecture and managed database architecture and migration, supporting all types of iPhone devices.

Cocoa Framework UI Animation App Architecture Database Management Client Side Networking UI Development

iOS Engineer

Mobitee

Sep 2011 - Jul 2013 (1 year 10 months)

Designed and developed custom UI controls, implemented business logic, and optimized client-side networking. Integrated social frameworks and fixed various bugs.

Client Side Networking Social Frameworks App Architecture UI Performance Optimization iOS Development Cocoa Touch

Education

Degrees, certifications, and relevant coursework

Belhard

Certificate, iOS Development

2010 - 2010

Completed a course focused on iOS development, covering essential skills and technologies for building applications on Apple platforms.

Lomonosov Moscow State University

Master of Computer Science, Computer Science

2005 - 2010

Studied advanced topics in computer science with a focus on mathematics and computational theory, preparing for a career in software development and engineering.