Oleh Derkachov

Head of iOS Development

Lead a team of developers and QA specialists to ship 19 new mobile applications for a product with 1,000,000+ MAU. Integrated Tuist's binary caching, reducing build time by 80%, and implemented a custom Firebase Remote Configuration tool in Python with Slack integration.

SwiftTuistFirebasePythonSlackAdaptyiOSTeam Leadership

iOS Developer

Itransition Group

Designed a scalable UI-test architecture, cutting UI-test development time by 60%. Extracted reusable UI components into a shared design system, reducing duplicated UI work and speeding up new screen development by 20%.

SwiftUI TestingDesign SystemsiOSMentorship

iOS Developer

EPAM Systems

Integrated Kotlin Multiplatform (KMP) into the iOS codebase to reuse shared business logic, accelerating delivery of selected screens. Introduced a developer mode that shortened test cycles and saved 30 minutes of coordination time per issue.

SwiftKotlin MultiplatformiOSMentorshipDebugging