Hi, I’m Danil Krymlov, an iOS Engineer with 3+ years of experience and a BS in Computer Science, specializing in Swift, SwiftUI, and MVVM-C architectures. I bring a rare mix of engineering depth and product ownership, having independently scaled apps to $37k+ in revenue while thriving in Agile (Jira/Notion) environments. I focus on shipping clean, scalable code that drives commercial success, whether I’m collaborating with a full team or working solo. I’ve shipped apps across Medical, E-commerce, and Wellness domains, with expertise in the Full Firebase Stack, RevenueCat, and Ads SDKs. I’m comfortable handling UI/UX and localization (8+ languages) myself, and I enjoy building polished interfaces, robust networking, and reliable onboarding flows that users love.

Danil Krymlov

Hi, I’m Danil Krymlov, an iOS Engineer with 3+ years of experience and a BS in Computer Science, specializing in Swift, SwiftUI, and MVVM-C architectures. I bring a rare mix of engineering depth and product ownership, having independently scaled apps to $37k+ in revenue while thriving in Agile (Jira/Notion) environments. I focus on shipping clean, scalable code that drives commercial success, whether I’m collaborating with a full team or working solo. I’ve shipped apps across Medical, E-commerce, and Wellness domains, with expertise in the Full Firebase Stack, RevenueCat, and Ads SDKs. I’m comfortable handling UI/UX and localization (8+ languages) myself, and I enjoy building polished interfaces, robust networking, and reliable onboarding flows that users love.

Available to hire

Hi, I’m Danil Krymlov, an iOS Engineer with 3+ years of experience and a BS in Computer Science, specializing in Swift, SwiftUI, and MVVM-C architectures. I bring a rare mix of engineering depth and product ownership, having independently scaled apps to $37k+ in revenue while thriving in Agile (Jira/Notion) environments. I focus on shipping clean, scalable code that drives commercial success, whether I’m collaborating with a full team or working solo.

I’ve shipped apps across Medical, E-commerce, and Wellness domains, with expertise in the Full Firebase Stack, RevenueCat, and Ads SDKs. I’m comfortable handling UI/UX and localization (8+ languages) myself, and I enjoy building polished interfaces, robust networking, and reliable onboarding flows that users love.

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Experience Level

Expert
Expert
Expert
Intermediate
Intermediate
Intermediate

Language

English
Advanced
Russian
Fluent
Ukrainian
Fluent

Work Experience

Founder & iOS Engineer at Private Outsourcing Company
August 1, 2022 - Present
Founded and leading iOS development, delivering end-to-end apps with product ownership and Agile (Jira/Notion) workflows. Responsible for architecture, coding standards, and delivering scalable mobile solutions that support revenue growth (notably $37k+ in app revenue).
iOS Engineer at TalkSeek
January 1, 2023 - Present
iOS application for relationship advice with remote onboarding, localization (i18n architecture), and architecture decisions (Coordinator Pattern, weekly calendar module). Tech: Firebase, OpenAI API, Remote Config, RevenueCat.
iOS Engineer at Driverix
July 1, 2025 - Present
Speed Camera Alerts: Navigation startup. Implemented programmatic navigation using MapKit, Core Location, WidgetKit (live activity), background tasks, local notifications, and haptics. Tech: SQLite, RevenueCat, Lottie, Firebase.
iOS Engineer at Quick Touch Medical
July 1, 2024 - June 1, 2025
Health care tech startup with complex onboarding for multiple user roles. Networking with Alamofire/Combine, Service Container, Auth0, remote notifications, UI state management, AI-assisted chat, PDF reader, bar/QR code scanning, government API integration; designs from Figma; Lottie.
iOS Engineer at One Fit
December 1, 2022 - May 1, 2025
Health & Fitness startup. iOS onboarding, multi-user roles, networking with Combine/Alamofire, Firebase Auth, design from Figma, remote notifications, custom video player with controls, Lottie, trainer/customer chat, VoIP calling via GetStream SDK.
iOS Engineer at 22 Energies
December 1, 2022 - May 1, 2025
Energy insights iOS app built from scratch. Architecture, networking with Combine, programmatic navigation, complex matrix view, state management, haptics, remote notifications, Firebase stack, OpenAI API, RevenueCat; ads provider integrations (Meta, TikTok, AppsFlyer).

Education

Bachelor of Computer Science at Taras Shevchenko National University of Kyiv
January 1, 2020 - January 1, 2024

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Media & Entertainment, Professional Services

Experience Level

Expert
Expert
Expert
Intermediate
Intermediate
Intermediate