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Ilya Zastrizhniy
iOS Developer
Swift · SwiftUI · Full-cycle Mobile Product Development
Ukraine · Remote / Hybrid / Kyiv
Telegram · Email · GitHub · App Store Portfolio · Telegram Channel
ABOUT
iOS Developer with ~1.5 years of commercial experience, 17 independently published iOS
applications, and experience delivering 60+ App Store releases across personal and
commercial projects.
My core specialization is native iOS development with Swift and SwiftUI, but I am comfortable
owning much more than application code alone.
In my latest product role, I worked independently across the full mobile lifecycle: iOS
development, backend requirements, API integration, subscriptions, analytics, attribution, web
funnels, webhooks, QA, App Store assets, App Store Connect, and production releases.
Across my commercial experience, I have worked on:
~40 iGaming App Store releases
5 applications for an outsource / contract company
5 production applications shipped in my latest product role
1 additional production application currently in App Store Review
17 independently published applications under my own Apple Developer account
Outside commercial work, I continuously build and launch my own products, backend-
connected applications, Telegram bots, analytics tools, and monetization experiments.
COMMERCIAL EXPERIENCE
iOS Developer
Maverix Agency
Apr 2026 — Aug 2026
Worked independently on multiple production mobile products and owned most of the iOS
product and release lifecycle.
Developed and shipped 5 production iOS applications, with 1 additional application
currently in App Store Review.
Built native applications using Swift, SwiftUI, and MVVM.
Owned features from initial requirements through implementation, QA, and App Store
release.
Prepared technical requirements and API specifications for backend developers.
Worked directly with backend developers on application logic, APIs, authentication, server-
side state, and data flows.
Integrated RevenueCat and Adapty for subscriptions, paywalls, trials, purchases, and
entitlement logic.
Integrated AppsFlyer, OneLink, Firebase, analytics events, attribution, and deep linking.
Implemented and maintained web-to-app funnels and related conversion flows.
Worked with webhooks, App Store Server Notifications, subscription events, and backend
integrations.
Managed App Store Connect, TestFlight, IAP configuration, metadata, localization, releases,
and App Review.
Performed mobile QA and regression testing before production releases.
Created App Store screenshots and prepared visual assets for commercial applications.
Investigated production issues across iOS, backend, subscriptions, attribution, payments,
and analytics.
Proposed technical and product solutions independently instead of relying only on
predefined implementation tasks.
Reworked existing mobile products and participated in migrations from cross-platform /
legacy implementations to native iOS.
Stack:
Swift · SwiftUI · MVVM · REST API · RevenueCat · Adapty · AppsFlyer · Firebase · App Store Connect
· TestFlight · Webhooks · Deep Links · OneLink
iOS Developer
Livita Software
3 months
Developed and delivered 5 commercial iOS applications using Swift and SwiftUI.
Implemented interfaces from Figma designs with a strong pixel-perfect focus, closely
matching layouts, spacing, typography, colors, and component behavior.
Built reusable SwiftUI components, navigation flows, business logic, and application states.
Integrated REST APIs and backend-driven functionality.
Worked with production builds, TestFlight, and App Store submissions.
Fixed UI, logic, and integration issues during QA and release preparation.
Adapted applications based on client feedback and App Review requirements.
Worked with tasks and project communication through Trello and Slack.
Collaborated with backend developers, designers, and other team members throughout
development and release cycles.
Stack: Swift · SwiftUI · MVVM · Figma · REST API · App Store Connect · TestFlight · Trello · Slack ·
Git
iOS Developer
iGaming Company - Techniqum
7 months
Worked in a high-volume iGaming environment where development speed, fast adaptation,
and frequent App Store releases were key priorities.
Participated in the development and delivery of ~40 iOS applications.
Built and adapted applications using Swift and SwiftUI under short release cycles.
Worked extensively with WebView-based application flows and remote web content.
Implemented native onboarding, loading states, navigation, configuration, and supporting
application logic around WebView-based products.
Integrated APIs and remote configuration where required.
Quickly adapted existing codebases and application templates for new releases.
Prepared production builds and managed frequent App Store submission cycles.
Worked extensively with App Store Connect, TestFlight, certificates, provisioning, and
release preparation.
Resolved App Review issues and adapted applications when platform requirements
changed.
Fixed bugs and modified application flows under tight delivery timelines.
Built strong practical experience working across a large number of applications and shipping
products quickly.
Stack:
Swift · SwiftUI · WebView / WKWebView · REST API · App Store Connect · TestFlight · Git
INDEPENDENT PRODUCTS
Independent iOS Developer
17 independently published App Store applications. End-to-end ownership from
idea and development to monetization, analytics, ASO, App Review and iteration.
Several products include subscriptions, backend functionality, push notifications,
widgets and Live Activities.
SELECTED PRODUCTS
Padelora — Padel Score App
SwiftUI · MVVM · Backend · Live Activities · Subscriptions · Analytics
Built and shipped the iOS product end-to-end.
Implemented match scoring, statistics, leaderboards, friends and Live Activities.
Integrated subscriptions, backend synchronization and deep linking.
Built custom analytics covering onboarding, paywall, trials, subscriptions and match activity.
Built a custom live admin dashboard and event feed for users, revenue, subscriptions,
funnels and product activity.
Sobix — Gamified Alcohol-Free Tracker
Gamified iOS tracker designed around recovery progress, social mechanics, achievements, and
subscription monetization.
SwiftUI · MVVM · Firebase · Cloud Functions · RevenueCat · Sign in with Apple · Push
Notifications
Built the product independently from idea to App Store release.
Designed and developed the complete iOS application using SwiftUI and MVVM.
Created gamified daily recovery progression with unlockable stages and recovery cards.
Implemented achievements and medals based on user progress.
Built a social gifting system with custom and limited gifts.
Added gift levels and upgrade mechanics.
Implemented user nicknames, avatars, and social functionality.
Integrated Firebase Authentication with Sign in with Apple.
Used Firebase Firestore for cloud data and remote product configuration.
Built backend functionality using Firebase Cloud Functions with JavaScript.
Implemented remote push notifications.
Integrated RevenueCat and In-App Purchases for monetization.
Designed the gift system so content could be added, removed, or changed remotely through
Firestore without requiring an App Store update.
Created custom Lottie animations and integrated them into the product experience.
Added localization and cross-localization across multiple markets.
Implemented product analytics and real-time event tracking.
Managed design, App Store screenshots, metadata, ASO, submission, and release
independently.
Ukrainian Railway Workers' Union App
Ongoing cross-platform mobile platform for a Ukrainian railway workers' union.
Flutter · Backend · LiqPay · Authentication · Admin Panel · Analytics
Currently developing the product end-to-end using Flutter with AI-assisted development.
Responsible for product structure, application logic, integrations, testing, and overall
implementation.
Implemented user registration, authentication, and membership functionality.
Integrated LiqPay for membership contribution payments.
Connected the mobile application to a custom backend and account system.
Built AI-powered product functionality.
Developed a custom administration panel for managing users, payments, membership
status, and application data.
Implemented statistics and live event monitoring.
Designed product flows for user verification, membership status, and payment lifecycle.
Defined backend requirements and API behavior for server-side development.
PRODUCT EXPERIMENTS
Nexora — Telegram Micro-Product Platform
Personal infrastructure for rapidly launching and validating Telegram bots and small digital
products.
Python · Telegram Bot API · VPS · Telegram Stars · Analytics · Admin Panel
Built reusable infrastructure including:
Telegram bot architecture
VPS deployment
Telegram Stars payments
Usage limits
Multi-language localization
Custom analytics
User and payment tracking
Admin dashboard
Rapid product validation workflow
One example is an AI plant recognition bot built around photo analysis, usage limits, Telegram
Stars, and localization across 10 languages.
The goal is to launch quickly, measure real demand, and invest further only in products showing
traction.
ENGINEERING & PRODUCT STACK
iOS
Swift · SwiftUI · MVVM · async/await · Codable · URLSession · StoreKit · WidgetKit · ActivityKit · App
Intents · Deep Links
Backend Integration
REST API · JSON · JWT · Authentication · Webhooks · API Specifications · Backend Requirements
Monetization
RevenueCat · Adapty · StoreKit · Subscriptions · In-App Purchases · Trials · Paywalls
Analytics & Attribution
AppsFlyer · OneLink · Firebase · Mixpanel · Custom Event Tracking · Conversion Funnels
Apple Platform
App Store Connect · TestFlight · App Review · IAP Configuration · Localization · ASO · Release
Management
Product & QA
Mobile QA · Regression Testing · Technical Specifications · Backend Requirements · Product
Analytics · App Store Assets · Release Ownership
Additional
Flutter · Python · Telegram Bot API · LiqPay · Git · GitHub · Xcode · Cursor · Postman · Figma
SHIPPING EXPERIENCE
60+ App Store releases across personal and commercial work
17
Independent iOS applications published under my own Apple Developer account
~40
iGaming applications delivered to the App Store
5
Applications delivered for an outsource / contract company
5 + 1 in review
Production applications in my latest product role
↗
App Store Portfolio
Commercial Apps ↗
LANGUAGES
Ukrainian — Native
Russian — Native
English — Working proficiency
iOS Developer
Swift · SwiftUI · Full-cycle Mobile Product Development
Ukraine · Remote / Hybrid / Kyiv
Telegram · Email · GitHub · App Store Portfolio · Telegram Channel
ABOUT
iOS Developer with ~1.5 years of commercial experience, 17 independently published iOS
applications, and experience delivering 60+ App Store releases across personal and
commercial projects.
My core specialization is native iOS development with Swift and SwiftUI, but I am comfortable
owning much more than application code alone.
In my latest product role, I worked independently across the full mobile lifecycle: iOS
development, backend requirements, API integration, subscriptions, analytics, attribution, web
funnels, webhooks, QA, App Store assets, App Store Connect, and production releases.
Across my commercial experience, I have worked on:
~40 iGaming App Store releases
5 applications for an outsource / contract company
5 production applications shipped in my latest product role
1 additional production application currently in App Store Review
17 independently published applications under my own Apple Developer account
Outside commercial work, I continuously build and launch my own products, backend-
connected applications, Telegram bots, analytics tools, and monetization experiments.
COMMERCIAL EXPERIENCE
iOS Developer
Maverix Agency
Apr 2026 — Aug 2026
Worked independently on multiple production mobile products and owned most of the iOS
product and release lifecycle.
Developed and shipped 5 production iOS applications, with 1 additional application
currently in App Store Review.
Built native applications using Swift, SwiftUI, and MVVM.
Owned features from initial requirements through implementation, QA, and App Store
release.
Prepared technical requirements and API specifications for backend developers.
Worked directly with backend developers on application logic, APIs, authentication, server-
side state, and data flows.
Integrated RevenueCat and Adapty for subscriptions, paywalls, trials, purchases, and
entitlement logic.
Integrated AppsFlyer, OneLink, Firebase, analytics events, attribution, and deep linking.
Implemented and maintained web-to-app funnels and related conversion flows.
Worked with webhooks, App Store Server Notifications, subscription events, and backend
integrations.
Managed App Store Connect, TestFlight, IAP configuration, metadata, localization, releases,
and App Review.
Performed mobile QA and regression testing before production releases.
Created App Store screenshots and prepared visual assets for commercial applications.
Investigated production issues across iOS, backend, subscriptions, attribution, payments,
and analytics.
Proposed technical and product solutions independently instead of relying only on
predefined implementation tasks.
Reworked existing mobile products and participated in migrations from cross-platform /
legacy implementations to native iOS.
Stack:
Swift · SwiftUI · MVVM · REST API · RevenueCat · Adapty · AppsFlyer · Firebase · App Store Connect
· TestFlight · Webhooks · Deep Links · OneLink
iOS Developer
Livita Software
3 months
Developed and delivered 5 commercial iOS applications using Swift and SwiftUI.
Implemented interfaces from Figma designs with a strong pixel-perfect focus, closely
matching layouts, spacing, typography, colors, and component behavior.
Built reusable SwiftUI components, navigation flows, business logic, and application states.
Integrated REST APIs and backend-driven functionality.
Worked with production builds, TestFlight, and App Store submissions.
Fixed UI, logic, and integration issues during QA and release preparation.
Adapted applications based on client feedback and App Review requirements.
Worked with tasks and project communication through Trello and Slack.
Collaborated with backend developers, designers, and other team members throughout
development and release cycles.
Stack: Swift · SwiftUI · MVVM · Figma · REST API · App Store Connect · TestFlight · Trello · Slack ·
Git
iOS Developer
iGaming Company - Techniqum
7 months
Worked in a high-volume iGaming environment where development speed, fast adaptation,
and frequent App Store releases were key priorities.
Participated in the development and delivery of ~40 iOS applications.
Built and adapted applications using Swift and SwiftUI under short release cycles.
Worked extensively with WebView-based application flows and remote web content.
Implemented native onboarding, loading states, navigation, configuration, and supporting
application logic around WebView-based products.
Integrated APIs and remote configuration where required.
Quickly adapted existing codebases and application templates for new releases.
Prepared production builds and managed frequent App Store submission cycles.
Worked extensively with App Store Connect, TestFlight, certificates, provisioning, and
release preparation.
Resolved App Review issues and adapted applications when platform requirements
changed.
Fixed bugs and modified application flows under tight delivery timelines.
Built strong practical experience working across a large number of applications and shipping
products quickly.
Stack:
Swift · SwiftUI · WebView / WKWebView · REST API · App Store Connect · TestFlight · Git
INDEPENDENT PRODUCTS
Independent iOS Developer
17 independently published App Store applications. End-to-end ownership from
idea and development to monetization, analytics, ASO, App Review and iteration.
Several products include subscriptions, backend functionality, push notifications,
widgets and Live Activities.
SELECTED PRODUCTS
Padelora — Padel Score App
SwiftUI · MVVM · Backend · Live Activities · Subscriptions · Analytics
Built and shipped the iOS product end-to-end.
Implemented match scoring, statistics, leaderboards, friends and Live Activities.
Integrated subscriptions, backend synchronization and deep linking.
Built custom analytics covering onboarding, paywall, trials, subscriptions and match activity.
Built a custom live admin dashboard and event feed for users, revenue, subscriptions,
funnels and product activity.
Sobix — Gamified Alcohol-Free Tracker
Gamified iOS tracker designed around recovery progress, social mechanics, achievements, and
subscription monetization.
SwiftUI · MVVM · Firebase · Cloud Functions · RevenueCat · Sign in with Apple · Push
Notifications
Built the product independently from idea to App Store release.
Designed and developed the complete iOS application using SwiftUI and MVVM.
Created gamified daily recovery progression with unlockable stages and recovery cards.
Implemented achievements and medals based on user progress.
Built a social gifting system with custom and limited gifts.
Added gift levels and upgrade mechanics.
Implemented user nicknames, avatars, and social functionality.
Integrated Firebase Authentication with Sign in with Apple.
Used Firebase Firestore for cloud data and remote product configuration.
Built backend functionality using Firebase Cloud Functions with JavaScript.
Implemented remote push notifications.
Integrated RevenueCat and In-App Purchases for monetization.
Designed the gift system so content could be added, removed, or changed remotely through
Firestore without requiring an App Store update.
Created custom Lottie animations and integrated them into the product experience.
Added localization and cross-localization across multiple markets.
Implemented product analytics and real-time event tracking.
Managed design, App Store screenshots, metadata, ASO, submission, and release
independently.
Ukrainian Railway Workers' Union App
Ongoing cross-platform mobile platform for a Ukrainian railway workers' union.
Flutter · Backend · LiqPay · Authentication · Admin Panel · Analytics
Currently developing the product end-to-end using Flutter with AI-assisted development.
Responsible for product structure, application logic, integrations, testing, and overall
implementation.
Implemented user registration, authentication, and membership functionality.
Integrated LiqPay for membership contribution payments.
Connected the mobile application to a custom backend and account system.
Built AI-powered product functionality.
Developed a custom administration panel for managing users, payments, membership
status, and application data.
Implemented statistics and live event monitoring.
Designed product flows for user verification, membership status, and payment lifecycle.
Defined backend requirements and API behavior for server-side development.
PRODUCT EXPERIMENTS
Nexora — Telegram Micro-Product Platform
Personal infrastructure for rapidly launching and validating Telegram bots and small digital
products.
Python · Telegram Bot API · VPS · Telegram Stars · Analytics · Admin Panel
Built reusable infrastructure including:
Telegram bot architecture
VPS deployment
Telegram Stars payments
Usage limits
Multi-language localization
Custom analytics
User and payment tracking
Admin dashboard
Rapid product validation workflow
One example is an AI plant recognition bot built around photo analysis, usage limits, Telegram
Stars, and localization across 10 languages.
The goal is to launch quickly, measure real demand, and invest further only in products showing
traction.
ENGINEERING & PRODUCT STACK
iOS
Swift · SwiftUI · MVVM · async/await · Codable · URLSession · StoreKit · WidgetKit · ActivityKit · App
Intents · Deep Links
Backend Integration
REST API · JSON · JWT · Authentication · Webhooks · API Specifications · Backend Requirements
Monetization
RevenueCat · Adapty · StoreKit · Subscriptions · In-App Purchases · Trials · Paywalls
Analytics & Attribution
AppsFlyer · OneLink · Firebase · Mixpanel · Custom Event Tracking · Conversion Funnels
Apple Platform
App Store Connect · TestFlight · App Review · IAP Configuration · Localization · ASO · Release
Management
Product & QA
Mobile QA · Regression Testing · Technical Specifications · Backend Requirements · Product
Analytics · App Store Assets · Release Ownership
Additional
Flutter · Python · Telegram Bot API · LiqPay · Git · GitHub · Xcode · Cursor · Postman · Figma
SHIPPING EXPERIENCE
60+ App Store releases across personal and commercial work
17
Independent iOS applications published under my own Apple Developer account
~40
iGaming applications delivered to the App Store
5
Applications delivered for an outsource / contract company
5 + 1 in review
Production applications in my latest product role
↗
App Store Portfolio
Commercial Apps ↗
LANGUAGES
Ukrainian — Native
Russian — Native
English — Working proficiency
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The candidate's resume is posted at https://www.work.ua/resumes/19784746/