• Location: Stranorlar, Co. Donegal, Ireland (Open to 100% Remote)
• Work Auth: Stamp 4 Holder (Full, unrestricted right to work in Ireland)
• Contact: +353 85 195 3851, root@yurikoles.com
• Links: LinkedIn, GitHub, Portfolio

PROFESSIONAL SUMMARY

Senior iOS Engineer with 10+ years of experience building high-performance native (Swift, Objective-C) and cross-platform (Flutter) applications. Specialist in architecting complex mobile solutions for Fintech, HealthTech, and Social Networking. Expert in integrating mobile apps with hardware via Bluetooth and automating CI/CD pipelines. Based in Ireland, Stamp 4 holder, seeking long-term remote opportunities.

KEY EXPERTISE

• Mobile: Swift (SwiftUI/UIKit), Objective-C, Flutter (Dart), CoreData, Bluetooth Integration.
• Architecture: SOLID, Clean Architecture, MVVM-C, Modular Design.
• Backend & DevOps: Python (Django), Ruby on Rails, CI/CD (GitHub Actions/Bitrise), AWS/Linux.
• Tools: Xcode, Firebase, GraphQL, RESTful APIs, Jira.

SELECTED ACHIEVEMENTS & EXPERIENCE

Senior Mobile Software Engineer (Remote / Freelance) | 2014 – Present
Key Projects:

• FitTrack (HealthTech/Flutter):
  • Architected the integration of native Swift modules with Flutter, enabling 99.9% stable Bluetooth communication with 5+ types of medical devices (glucometers, scales).
  • Reduced data synchronisation latency by 40% through optimised background processing.
• Chevron (Retail/Utilities):
  • Developed a QR-based fuel pump activation system, ensuring 100% functionality in areas with poor GPS coverage.
  • Improved UI responsiveness by 30% by refactoring legacy UIKit components.
• DocChat (Telemedicine):
  • Led the UI/UX redesign for iPad, resulting in a 25% increase in user session duration for medical consultations.
  • Implemented secure real-time WebRTC audio/video features.
    

iOS Software Engineer | Biruza Software, Ukraine | 2013 – 2014

• Bestie App (Social Network): Optimised CoreData stack, reducing app launch time by 1.5s and ensuring seamless Facebook friend-list synchronisation for 100k+ users.
  

iOS Software Engineer | Go interactive!, Ukraine | 2012 – 2013

• Fourcoins (Social Loyalty): Developed core map and chat functionalities for a social networking platform, integrating location-based check-ins and loyalty program discounts.
  

iOS Software Engineer | GrandSoftStudio, Ukraine | 2011 – 2012

• Canal+ Touch (iPad Streaming): Implemented live and on-demand video streaming features, addressing technical challenges related to unstable network conditions for a premium media service.

EDUCATION

Computer Engineering | Donetsk National Technical University (2009)

ADDITIONAL INFORMATION

• Languages: English (Upper-Intermediate / B2), Ukrainian (Native).
• Availability: Immediate (1-week notice).