Oleksandr Lahutin — iOS Developer

Expertise in iOS (2.5 yr.), Mobile Apps (2.5 yr.).

Last verified on April, 2026

Core Skills

Swift

2 yr.

Objective-C

IOS SDK

2 yr.

UIKit

2 yr.

SwiftUI

2 yr.

Bio Summary

iOS Developer with 2+ years of experience delivering high-performance VPN and utility apps, proficient in Swift, Objective-C, and modern concurrency (async/await).
Skilled in multiple architectures and design patterns including MVVM, MVC, VIPER, TCA, and Coordinator.
Expertise in full mobile development lifecycle from UI implementation based on Figma designs to App Store deployment, with strong integration experience (Adapty, Amplitude, AppsFlyer, Firebase).

Technical Skills

Programming Languages	Objective-C, Solidity, Swift
Mobile Frameworks and Libraries	Crashlytics
UI Frameworks, Libraries, and Browsers	WebKit
Azure Cloud Services	Azure Key Vault
Project Management & Administration	Amplitude, MVP
Third Party Tools / IDEs / SDK / Services	Appsflyer, IOS SDK, XCode
Collaboration, Task & Issue Tracking	Atlassian Confluence, Jira
Deployment, CI/CD & Administration	CI/CD
Methodologies, Paradigms and Patterns	Clean Architecture, Dependency Injection, DRY, KISS, MVC, MVVM, OOP
iOS Libraries and Tools	Core Animation, Core Data, Core Motion, SwiftUI, UIKit, URLSession, Viper
UI/UX/Wireframing	Figma
Version Control	Git
SDK / API and Integrations	IOS SDK, RESTful API
Mail / Network Protocols / Data transfer	POP, VPN
QA, Test Automation, Security	XCTest
Other Technical Skills	Adapty, Concurrency, GameKit, GCD, Parsing, Planning and Coordination, SPM, SpriteKit, YAGNI

Work Experience

iOS Developer - Rock & Apps (VPN and AdBlocker Applications)

Duration: November 2024 - October 2025
Summary:

Development of high-performance VPN applications integrated with AdBlocker features, subscription management, and user behavior tracking
The project aimed to provide secure and efficient VPN services with enhanced user experience through ad blocking and analytics integration

Responsibilities:

Developed UI from Figma designs and adapted it for all iPhone models.
Created VPN applications and integrated AdBlocker functionality.
Implemented different architectural patterns including Coordinator, Dependency Injection, MVC, and MVVM.
Integrated Adapty for subscription management and Amplitude and AppsFlyer for tracking sales funnels and user behavior.
Collaborated closely with product managers, developers, designers, and testers to deliver high-quality solutions.

Technologies: Swift, iOS SDK, UIKit, MVVM, MVC, Coordinator, Dependency Injection, Adapty, Amplitude, AppsFlyer, VPN SDK

Freelance iOS Developer (Smart Cleaner)

Duration: August 2023 - October 2024
Summary:

Development of a native iOS application focused on cleaning and optimizing device storage by identifying duplicate and similar photos and videos
The app featured an intuitive UI and efficient scanning algorithms to enhance user experience and device performance

Responsibilities:

Developed native iOS applications managing the entire app lifecycle.
Communicated with stakeholders to gather requirements and translate them into technical tasks.
Designed intuitive UI for core features based on Figma designs using Swift.
Created a service for searching duplicate and similar photos and videos using local storage.
Optimized search algorithms to efficiently identify duplicates without UI freezing.

Technologies: Swift, iOS SDK, UIKit, Figma, local storage, algorithm optimization

Education

Vistula University
Bachelor of Engineering in Computer Science
October 2023 - Present

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