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alexsisov

Oleksandr S

@alexsisov

Senior iOS Developer

Oekraïne
Engels
Sommige informatie wordt in het Engels weergegeven.
Over mij
I am a Senior iOS Developer with 14+ years of experience building high-performance, real-time mobile applications using Swift, SwiftUI, and modern iOS architectures. I have a proven track record in designing scalable modular systems and leading architectural decisions in fintech, health, and streaming domains.... Lees meer

Skills

a
alexsisov
Oleksandr S
offline • 
Gemiddelde reactietijd: 5 uur

Bekijk mijn diensten

iOS-app development
I will build a custom iphone app with swift and swiftui
VanafUS$ 200 / projectMeer informatie
iOS-app development
I will fix bugs and crashes in your ios app with swift and swiftui
VanafUS$ 135 / projectMeer informatie

Portfolio

Werkervaring

Viber

Sr. iOS Engineer

Viber • Fulltime

Jan 2025 - Feb 2026 • 1 yr 1 mo

● Developing fintech features for Viber Pay and wallet systems. ● Implementing secure KYC/KYB flows and contributing to modular Swift architecture in distributed teams.

Company

Fulltime • 2 yrs 10 mos

Sr. iOS Engineer

Oct 2023 - Feb 2025 • 1 yr 4 mos

Designed offline-first architecture with background sync and optimized large datasets using CoreData. iOS Developer — Anders

Sr. iOS Engineer

Sep 2021 - Mar 2023 • 1 yr 6 mos

Led modular architecture design using VIPER; mentored 2–3 developers. Reduced merge conflicts by 25–35% via XcodeGen and increased dev speed by 40%.