Position: Senior iOS/macOS Security Developer
Category: iOS
English level: fluent
Years of experience: 11

Developed or participated in more than 100 commercial in IT companies and 125 freelance mobile applications on Fiverr, Upwork.

Initiated and managed several highly visible projects for:
-	Marse Corp. and Abbot Inc. inventory management apps + UniCredit bank and Renaissance  bank CRM apps within CustomerTimes company,
-	DROTR smart universal translator + DROTR offline English/Spanish translator within organization TIW,
-	Leica Camera AG store management software + public Leica company representation catalogue app.

I'm teaching courses to students on Swift/Objective-C and iOS/macOS development in Vinnitsa and Kiev. I published courses on Udemy.
SUMMARY:
Lead iOS/macOS/Catalyst Developer, Technical Lead with 12+ years of mobile and desktop development. Architect of mobile solutions.


PROGRAMMING LANGUAGES:
• Objective-C
• Swift
• Metal Shading Language
• C#
• Kotlin
• TypeScript
• HTML, CSS


TOOLS:
• Xcode
• Terminal
• Visual Studio
• Android Studio
• AppCode
• Charles, Postman
• Git (command line, SourceTree, GitHub Desktop, Stash)
• Mercurial (Hg Tortuis, TeamCity)
• Jenkins, Hudson, Fastlane, Bitrise, GitLab workers, Xcode Cloud
• Brew, cocoapods, SPM, Carthage
• ffmpeg
• Kali linux + hack tools
• Jira, Confluence, etc


TECH STACK:
• Swift - 7 years
• Objective-C - 13 years
• C# for Xamarin.iOS / Xamarin.macOS - 5 years
• Security in mobile apps + penetration testing + crypto
• RSA, AES256, HMAC, PBKDF2, Rijndael, assymetric keypairs, Apple Security framework, CommonCrypto
• Apple Metal framework, ARKit, MetalKit, Metal Shading Language, 3D rendering, writing low-level shaders and vertices code, PBR, Ray tracing, AVFoundation, Core Image, Core ML.
• CoreData, SQLite, migration, version control
• REST, JSON, Alamofire
• IoT, MQTT, WebSockets
• CoreLocations, CoreBluetooth, Google Nearby API, bluetooth central/peripheral (also in background), scanning/advertising/transactions
• GCD, Operation, concurrency
• Firebase, AWS, APNS, silent notifications, Corezoid
• Background modes: fetch, task, process, location, audio
• Augmented Reality on iOS (ARKit/RealityKit)
• Machine Learning (ML/AI)
• Graphic Design, UX/UI, human interface guidelines
• iBeacons and location awareness, Geo fencing and tracking
• Core Audio, Synthesizer and Spacial Audio expertise + design of my own VAD algorithm
• In-App Purchases + auto-renewable subscriptions with server validation
• iOS wrapper applications + Java Script interception
• Push notification expert setup with rich content and actions
• Core Animations and advanced visual effects + CIFilters
• Working with photo/video assets, CIFilters
• Working with Camera and Depth maps
• SAP/Salesforce mobile integration
• Memory Management + load efficiency
I expect a challenging project with above-the-market pay. Remote only.