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Stanislav Shiyanovskyi
Senior iOS Engineer
Ukraine (Open to remote) [відкрити контакти](див. вище в блоці «контактна інформація»)

[відкрити контакти](див. вище в блоці «контактна інформація») github.com/st-small [відкрити контакти](див. вище в блоці «контактна інформація»)

Profile
Senior iOS Engineer with nearly 10 years of experience modernizing and scaling mobile applications for the
healthcare and communication sectors. Shipped over 14 production apps from concept to launch. Expert in
migrating legacy UIKit codebases to modern, modular architectures using SwiftUI and Combine. Drove
architectural decisions and mentored engineering teams to improve development velocity and product
maintainability.

Selected Expertise
• SwiftUI migration
• Modular Architecture
• Dependency Injection
• Technical Mentoring
• Mobile Architecture Design
• UIKit Modernization
• Feature Modularization
• Team Collaboration

Professional Experience
Senior iOS Engineer (Part-time Consulting), Pharmix 2025 – Present
Led the strategic migration of a legacy UIKit application to a modern, scalable
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architecture using SwiftUI and Combine.
Designed and implemented a modular system with a centralized dependency
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injection and routing infrastructure, aiming to reduce new feature development
time and simplify maintenance.
Mentored 2 mid-level engineers on modern iOS practices, improving team-wide
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code quality through rigorous code reviews and pair programming sessions.
Actively participated in the hiring process, conducting over 10 technical
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interviews to help scale the mobile engineering team.

Senior iOS Engineer, Swisscows 2022 – 2025
Co-led the migration of the flagship application from Flutter to a fully native iOS
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stack (SwiftUI, Combine), improving app performance and long-term
maintainability.
Architected and built the real-time messaging feature from the ground up using
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SwiftUI and a Redux-like state management pattern, supporting a growing user
base.
Refactored the legacy codebase into distinct feature modules, which reduced
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build times by an estimated 20% and isolated dependencies between teams.
Developed a suite of UI automation tests for critical user journeys like onboarding
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and messaging, catching potential regressions before release.

Senior iOS Engineer, Reach Peach Media 2020 – 2022
Owned the end-to-end development and release of 14+ commercial iOS
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applications for clients in healthcare, retail, and productivity.
Architected a reusable component library and a template project structure that
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accelerated new app development, cutting initial setup time from weeks to days.
Pioneered the adoption of SwiftUI and Combine within the company, creating
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proof-of-concept projects that demonstrated their viability and led to their use in
3 new client apps.
Mentored junior developers and established code review standards, improving
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overall code quality and consistency across all mobile projects.

iOS Engineer, Aura Devices 2019 – 2020
Developed the companion iOS app for a new wearable device, handling all
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Bluetooth (BLE) communication using the CoreBluetooth framework.
Engineered a robust data synchronization protocol to reliably transfer health
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metrics from the device to the app, even with intermittent connectivity.
Built the user-facing interface for device management, data visualization, and
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settings configuration.

iOS Engineer, Medved Studio / VEDIDEV / VeProf 2017 – 2019
Developed and maintained a portfolio of 5+ iOS applications for various clients,
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including social networking, e-commerce, and utility apps.
Delivered a key feature for an image-processing app that allowed users to apply
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real-time filters, using Core Image and GPU-accelerated rendering.
Collaborated on a project that required integrating a native iOS module into an
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existing React Native application to access platform-specific APIs.

Technical Skills
Languages UI & Frameworks
Swift, Objective-C, JavaScript, Python SwiftUI, UIKit, Combine, CoreBluetooth, Core Image

Architecture Concurrency
Modular Architecture, MVVM, Clean Architecture, Async/Await, Combine, GCD
Dependency Injection, Redux
Tools & CI/CD
Networking Git, Fastlane, SPM, CocoaPods, Firebase, REST APIs,
URLSession, Alamofire, REST APIs, WebSockets WebSockets

Education
Software Engineering, Kirovohrad Cybernetic Technical College

LEADERSHIP
• Conducted 20+ technical interviews
• Mentored 2 iOS engineers
• Performed code reviews for a team of 3 developers
• Participated in architecture planning and technical decision-making

Languages
Ukrainian Russian English
Native Native Intermediate (B1/B2)