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Skilled and results-oriented iOS developer with 6+ years of experience with Swift and Flutter. Reliable and proactive, with strong communication skills and a willingness to take ownership. Experienced in analysis and estimation. Focused on building strong customer relationships. Quality-driven, striving to find the best solutions for both business and engineering. A strong team player.…

Oleh Derkachov

App Developer, Web Developer, Developer, +2

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Skilled and results-oriented iOS developer with 6+ years of experience with Swift and Flutter. Reliable and proactive, with strong communication skills and a willingness to take ownership. Experienced in analysis and estimation. Focused on building strong customer relationships. Quality-driven, striving to find the best solutions for both business and engineering. A strong team player.…

Available to hire

Skilled and results-oriented iOS developer with 6+ years of experience with Swift and Flutter. Reliable and proactive, with strong communication skills and a willingness to take ownership. Experienced in analysis and estimation. Focused on building strong customer relationships. Quality-driven, striving to find the best solutions for both business and engineering. A strong team player.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Ukrainian

Fluent

Russian

Advanced

English

Advanced

German

Advanced

Work Experience

Head of iOS Development at Tribuna.com

May 1, 2022 - Present

Remote leadership role overseeing iOS development and QA. Led a team to ship 19 mobile applications for a product with 1,000,000+ MAU. Implemented Tuist binary caching to cut Swift project build times by 80%. Built a Python-based Firebase Remote Configuration tool with Slack integration, reducing per-change time by 90%. Created module scaffolding templates to accelerate new module creation by 95%, and built a native paywall builder integrated with Adapty to standardize paywall composition and cut integration time by 75%.

iOS Developer at Itransition Group

October 1, 2021 - June 1, 2022

Movix - streaming & TV entertainment platform providing on-demand video content and live TV channels across mobile and TV devices. Designed scalable UI-test architecture reducing UI-test development time by 60%. Extracted reusable UI components into a shared design system, reducing duplication and speeding up new screen development by 20%. Refactored core screens to modernize architecture and UI components; mentored junior iOS developers through code reviews and pairing, improving code quality.

iOS Developer at EPAM Systems

May 1, 2020 - October 1, 2021

Integrated Kotlin Multiplatform into the iOS codebase to reuse shared business logic, accelerating delivery of selected screens and reducing duplicate implementation. Introduced a developer mode that gave engineers and QA quick access to advanced debug tools, shortening test cycles and saving 30 minutes of coordination time per issue. Mentored trainees and organized iOS knowledge-sharing lectures, strengthening technical culture.