iOS and watchOS developer with 14 years of experience creating and maintaining apps for clients in the USA, UK, Israel, Germany, and Ukraine. Proficient in Swift, Objective-C, UIKit, SwiftUI, WatchKit, SpriteKit, Combine, and Core Data, with additional experience in C# (Unity) and Python (backend and ML). Specialized in text and multimedia communication projects, with added work in personal finance, health & fitness, and game development. Skilled in building and maintaining app architectures, UI, local databases, data synchronization, networking, geolocation, and payment integrations. Experience in leading teams and mentoring junior developers.
Experience: 11 years
Yearly salary: $140,000
Hourly rate: $90
Nationality: 🇺🇦 Ukraine
Residency: 🇪🇸 Spain
Experience
Senior iOS/watchOS engineer
Endless Technologies 2019 - 2025
Worked across Lloyd, Protect, and Wristcam on iPhone, iPad, and Apple Watch products. Built and improved app architecture, UI, multimedia and communication features, geolocation, and AI assistant capabilities, while introducing or expanding MVVM, TCA, structured concurrency, and BDD with strong focus on code quality, performance, and maintainability.
Senior iOS engineer
Mobindustry 2018 - 2019
Supported multiple iOS apps while helping the company move toward MVVM and unidirectional data flow. Built a Swift Redux implementation for internal use, shared HIPAA practices in the healthcare direction, and mentored a junior iOS developer to middle level. This is directly grounded in your CV, just cleaner.
Senior iOS developer
Noosphere 2017 - 2018
Worked on PocketGuard, improving UI, data synchronization, analytics, stability, and payments. Shipped updates to personal offers, financial charts, transaction logs, and Stripe integration, including a personal offers update that increased related revenue 2.5x and analytics improvements that raised funnel completion by 20 to 60 percent across multiple flows.
Senior iOS developer
DataArt 2016 - 2017
Led development of the BCA Research iOS app from concept to App Store release. Also contributed to Patient Access and an unreleased marathon app, working across finance, healthcare, and sport products.
Middle iOS developer
Techery 2015 - 2015
Contributed to the Objective-C version of FLUX, an open-source framework that I later used in other projects.
Middle iOS developer
WebXLOO 2014 - 2015
Built WhannTech Global and Vehicle Inspection Report apps for US car auctions from scratch. Added server-controlled UI customization so the apps could be adapted for different customers.
Middle iOS developer
ISD 2014 - 2014
Improved RetouchMe gallery synchronization by 10,000x and helped take the app from beta to App Store release. Also built a reusable networking module that adapted to different API versions and network conditions.
Middle iOS developer
NetLab 2014 - 2014
Built a data synchronization solution for iOS POS terminals with the server and across devices in a local network.
Middle iOS developer
Cupid Labs 2013 - 2013
Worked on the Canoodle dating app, handling feature development and bug fixes.
Middle iOS/Android game developer
Disc Soft Ltd. 2012 - 2013
Built an intuitive multi-parameter tilt control system for an Earn to Die style game. Later helped move the team to Unity3D for a new game, which sped up development by about 5 to 6 times, and mentored a QA into a game developer role.
Junior iOS developer
Yalantis 2012 - 2012
Started as a junior iOS developer and progressed quickly to middle level while working on different tasks.
Skills
ai
ios
machine-learning
objective-c
python
swift
tensorflow
english
spanish
ukrainian
