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Dmytro Kopanytsia
Mobile Software Engineer | React Native / Expo & Native iOS
Barcelona, Spain | [open contact info](look above in the "contact info" section)
LinkedIn | GitHub
Authorized to work in Spain; no visa sponsorship required.
Contact preference: email or Work.ua messages; no phone calls.

Profile
Mobile software engineer with 14+ years of commercial experience, primarily in native iOS/watchOS, and recent
hands-on React Native / Expo development. Currently the sole application developer maintaining and extending Egolist,
an already released iOS/Android application. Works on UI behavior, responsive layouts, analytics and automated tests,
bringing a background in architecture, synchronization and AI-assisted engineering to existing mobile products.

Experience
Egolist - freelance development of an existing iOS/Android application
Sole Application Developer | Jun 2026-Present
- Took over development of new versions of an already released React Native / Expo application; currently the sole
developer responsible for its ongoing application development.
- Implemented UI updates, image-gallery/lightbox interactions and concierge date/time flows; improved responsive
layouts and navigation behavior across iOS and Android.
- Added Firebase/GA4 and Meta event tracking for registration, catalog, quiz and concierge flows, with event-contract
documentation and automated tests.

B2B Software Platform - project contract under NDA
Software Engineer | AI Enablement & Engineering Productivity | Apr-Sep 2026
- Introduced AI review, project-specific engineering documentation and agent-assisted workflows across approximately 30
delivery participants and 20-25 repositories, with mandatory human approval.
- Combined workflow improvements reduced aggregate human review time by approximately 80% and made review/QA
progression roughly 3x faster, based on rounded task/time-tracker statistics.
- Designed a phased server-modernization strategy and implemented a test-covered pilot extraction; contributed to
progressive releases and AI-assisted incident analysis.

Freelance iOS application - project contract
iOS Engineer | Dec 2025-Mar 2026
- Contributed to iOS application development for a consumer lifestyle service, using AI-assisted tools in the engineering
workflow.

Endless Technologies - Senior iOS/watchOS Engineer
Sep 2019-Nov 2025
Lloyd | Jun 2024-Nov 2025
- Implemented device-side capabilities for a multimodal AI assistant, including location, messaging, email, calendar,
reminders and contacts, and improved mixed-media interaction flows.
- Migrated a legacy database subsystem to modular Swift Concurrency code with test coverage and a preserved external
interface for gradual adoption.
Protect | Aug 2022-Jun 2024
- Helped establish SwiftUI/MVVM architecture and built major UI flows for a safety communication application; integrated
Siri triggers and CallKit.
- Removed visible lag in a complex SwiftUI interface and improved live-location handling for more dependable sessions.
Wristcam | Sep 2019-Aug 2022
- Owned major SpriteKit-based watchOS UI areas, replacing heavier WatchKit paths with reusable components suited to
memory and CPU constraints.
- Improved companion iPhone gallery synchronization with batched updates that kept visible content stable while media
arrived.

Dmytro Kopanytsia | 1

Earlier commercial experience
Mobindustry | Senior iOS Engineer | Nov 2018-Aug 2019
Built an internal Swift Redux implementation, supported MVVM adoption and mentored a junior developer to middle level.
Noosphere | Senior iOS Developer | Nov 2017-Aug 2018
Improved PocketGuard synchronization, analytics, charts and payments. Contributed to a personal-offers update
associated with a 2.5x increase in related revenue.
DataArt | Senior iOS Developer | Feb 2016-Aug 2017
Led BCA Research app development from concept to App Store release; contributed to Patient Access and a sports
application.
Earlier iOS development | Feb 2012-Nov 2015
Yalantis, Disc Soft, Cupid Labs, NetLab, ISD, WebXLOO and Techery. Built applications, synchronization and networking
components; improved gallery performance and contributed to an Objective-C Flux implementation.

Selected skills
- Cross-platform: React Native, Expo and TypeScript for ongoing iOS/Android application development.
- Apple platforms: Swift, Objective-C, SwiftUI, UIKit, WatchKit, SpriteKit, AppIntents, SiriKit, CallKit, Core Location,
AVFoundation, Speech and Live Activities.
- Architecture/data: MVVM, TCA, Redux, modular design, Core Data, SwiftData, Realm and synchronization.
- Concurrency/networking: Swift Concurrency, GCD, Combine, REST APIs, WebSockets and real-time media flows.
- Quality/delivery: XCTest, XCUITest, unit/integration tests, BDD, code review, Jenkins and Fastlane.
- AI/tooling: LLM-backed product integrations, CodeRabbit, Cursor, Codex, agent-assisted workflows and Python tooling.

Education and languages
- Bachelor's degree in software engineering, railway transport university in Dnipro, Ukraine, 2012.
- Machine Learning Specialization, Stanford University and DeepLearning.AI via Coursera, September 2024.
- Ukrainian: native | English: C1 | Spanish: A1.

Dmytro Kopanytsia | 2