Denis Litvin

About Denis Litvin

iOS Developer inclined to performant and well-crafted code. Build apps, games, instruments for developers. Expert in Objective-C and Swift. Have 5+ years of coding experience. A highly motivated and result-driven developer looking for opportunities that will provide me, both, personal and professional growth. Expertise in iOS, proficient with tvOS and watchOS. Familiar with Backend (Vapor) and Android development. Deep understanding of UI fundamentals (e.g. View Controller lifecycle, etc.). Made adaptive and sophisticated layouts in code as well as in Storyboards and Xibs. Worked with Auto-Layout and other alternatives. Developed my own layout engine. Have a great understanding of Human Interface Guidelines. Wrote testable, human-readable code adhering to good practices. Master in Test Driven Development (TDD). Have practice with different architectural approaches: MVC, MVP, MVVM, VIPER as well as many behavioral, structural and creational design patterns. A sound understanding of HTTP and REST-style web services, and best practices for Mobile App integration using different frameworks. Strong knowledge of mobile security best practices. Experience with functional and reactive programming techniques and frameworks (RxSwift, RxCocoa). Successfully debug programs developed by others using the latest debugging technologies. Have enhanced the performance of the applications as well as optimized code to address size and memory constraints. Familiar with Instruments, LLDB. Expert in multitasking and multithreading concepts (GCD, Operations). Proficient with GIT-flow. Use GitHub and BitBucket. The ability to work in a fast, agile and nimble environment with frequent change. Excellent technical, communication and interpersonal skills.

Experience

1. Senior Ios Software Engineer

   Paramount

   Jun 2022 — Present · Seattle, WA, US

   As a part of the iOS and tvOS core platform team worked on research and development of best practices to modernize the code base and architecture and improve app performance- Development and integration of a native HLS stream downloading solution to replace a third-party and save a company millions on annual basis- App size optimization, which shaved off >50% of the size- Research and development of a modularized architechture- Optimizing scrolling performance of a home page and solving the main cause for hitches in the app.

Education

• Finance University under the Government of the Russian Federation

  Bachelor's of Finance, Financial Management

  2015 — 2017