Сергій

Serhii Merenkov [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
Ukraine / Remote
Senior iOS Engineer · Fintech · Product Apps
Senior iOS Engineer with 10+ years of focused iOS development (17+ in software overall). Specialized in building scalable fintech
and product applications using Swift and SwiftUI. Strong in architecture design, performance optimization, and delivering
production-ready features end-to-end.
SKILLS
Swift SwiftUI UIKit Objective-C MVVM Clean Architecture GraphQL REST CI/CD GCD async/await

EXPERIENCE
Senior iOS Engineer · ПУМБ 2022 — Present
Designed scalable mobile architecture for fintech application
Implemented features using SwiftUI and GraphQL
Improved performance and user experience responsiveness
Enhanced release stability via CI/CD improvements
Senior Blockchain / Mobile Engineer · Unstoppable Domains 2020 — 2021
Built cross-platform SDKs (Swift + TypeScript)
Developed blockchain integrations (EVM)
Contributed to core resolution infrastructure
Senior iOS Engineer · Raiffeisen Bank 2020
Introduced SwiftUI-based architecture
Developed scalable features with GraphQL
Lead iOS Engineer · Lohika 2019 — 2020
Led iOS team and architecture decisions
Delivered product features and integrations
Senior iOS Engineer · Multiple Companies 2014 — 2018
Worked on IoT, WebRTC, and high-load mobile apps
Integrated BLE devices and real-time features
EDUCATION
Master’s Degree — IT Project Management
Taras Shevchenko National University of Kyiv
2022 — 2023
Bachelor’s — Mathematics & Computer Science
Taras Shevchenko National University of Kyiv