Hire the Best Marvel App Freelancers in Kyiv, UA

Hi there! I believe in letting my work speak for itself. Here’s what I bring to the table: 🎨 Clean and intuitive UX/UI design 📐 Strong knowledge of design principles 📱 Familiarity with Human Interface Guidelines 🛠 Proficient in Figma tools: auto layouts, components, and prototyping 🧩 Clear and logical wireframing 🔲 Expertise in the 8-grid layout system 🚀 Responsive design for all screen sizes 🎯 User-centered design focused on solving real problems 🔄 Experience with design systems for consistency and scalability ⚡️ Interactive prototypes to bring ideas to life 📊 Ability to apply user research and feedback to improve designs If you’re looking for thoughtful, user-friendly, and well-structured designs, feel free to reach out - I’m ready to deliver great results! 🔑 Keywords Mobile App Design, UI Design, UX Design, Interaction Design, User Flows, Wireframing, Prototyping, App Redesign, Accessibility Design, Responsive Design, Cross-platform Design, Minimalist UI, Functional Design, Intuitive Design, Scalable Design Systems, Usability Testing, Visual Hierarchy, Typography, Color Theory, iOS App Design, Android App Design, Material Design, Human Interface Guidelines (HIG), App Store Optimization (ASO), Flutter UI Design, SwiftUI Design, React Native UI, Figma, Adobe XD, Sketch, InVision, Zeplin, Protopie, Balsamiq, Miro, Canva, Principle, Axure, Marvel App, Overflow, Modern UI, Clean Design, Flat Design, Minimalism, Neumorphism, Skeuomorphism, Glassmorphism, Dark Mode Design, Light Mode Optimization, Adaptive Design, Micro-Animations, Motion Design, Data Visualization, Infographics, Agile Design, Lean UX, Design Thinking, User Research, A/B Testing, Design Sprints, Storyboarding, Journey Mapping, Competitive Analysis, User Personas, Heatmap Analysis, Branding, Logo Design, Icon Design, Illustration, Custom Icons, Typography Design, Interactive Design, Product Design, Mockups, Clickable Prototypes, Design System Creation, Social Networking App Design, Messaging App UI, E-commerce App Design, FinTech App UI, Health & Fitness App UI, SaaS Platform UI, Utility App Design, Travel App UI, Food Delivery App UI, Educational App Design, Productivity App Design, UI/UX Freelancer, Mobile Design Expert, UI Specialist, UX Consultant, App Design Professional, User-centered Design, Creative Problem Solving, UI Trends, UX Principles

Hi, my name is Artem Selivanov. I'm software engineer with a decade of hands-on experience in designing, developing, and maintaining successful, user-friendly, native iOS/iPadOS/tvOS/watchOS applications in such areas as Health and Wellness, E-commerce, Education, Social Networks, Messaging, Media, Streaming. I have a product-oriented mindset, focused on delivering features to production. Always looking to analyze and solve complex problems, while paying attention to fine details. Constantly learning new technologies, and thriving for excellence. I can be a part of a team, or working solo. As an iOS/iPadOS/tvOS/watchOS Software Engineer I can be responsible for an any part of your app development, maintenance or evolving cycle. Beginning from designing app architecture and UI/UX, ending with app distribution. If you need build an app of any complexity from scratch, make overall refactoring, fix broken functionality of an existing app or add new features to it, please feel free to contact me. Also I am able to integrate CI/CD automation to your project. Besides I can help you with understanding of Apple Human Interface Guidelines and give remarks or suggestions about UI/UX if needed. Remembering my professional experience I can highlight the following exceptional challenges I faced with: - Maintaining and improving security qualities of a messenger which conforms HIPAA compilance. - Implementing subscriptions logic for educational app for musicians. - Implementing background downloading system of attachments, media and service files for educational/support AR platform. I have a Master's degree in Computer Engineering from Zaporizhzhya National Technical University, Ukraine. My skills, preferred methodologies and paradigms: Programming Languages: - Swift - 5 years of experience - Objective-C - 5 year of experience (I didn't have a chance to practice since 2021) Programming Paradigms: OOP, Reactive Programming Methodologies: TDD, BDD, DDD Principles: SOLID, DRY, KISS, YAGNI Apple Frameworks: - Foundation, UIKit, Core Data, Core Location, Network - SwiftUI, Combine - CoreFoundation, Core Animation, Core Graphics, Core Audio, Core Bluetooth, CFNetwork, Core Telephony, Core Text - Accounts, ARKit, Audio Toolbox, Authentication Services, AVFoundation, AVKit, Background Tasks, CallKit, CloudKit, Contacts, Contacts UI, MapKit, Media Player, Media Accessibility, PhotoKit, PushKit, Security, SiriKit, StoreKit, WebKit - Human Interface Guidelines - Objective-C Runtime - XCTest 3rd-party Frameworks: - RxSwift - SnapKit - Lottie - Alamofire, AFNetworking - SDWebImage, Kingsfisher - Typhoon - Facebook SDK, - Firebase SDK - SSZipArchive - Lumberjack - SwiftLint - Fabric, Crashlitics - SQLCipher - PjSIP Databases & Persistent Frameworks: - Core Data - Realm - FMDB - SQLite - Firebase Realtime DB Dependency management: - Cocoapods - Swift Package Manager - Cathage Source Control - Git, Bitbucket, GitLab, SourceTree, GitKraken Task Management: - Fibery, Jira, Youtrack, Assembla, Trello IDE: Xcode CI/CD: - Fastlane - CircleCI

Hey, I'm Anfisa - BD from PlayJoy Studios - game development & art outsourcing company established 5 years ago. I will be your guide in the art and game development process and be available 24/7, always ready to help and answer any questions! We are a team of professionals with 5-10 years of experience in the industry. We have great experience with mobile platforms - more than 20 games we worked on and/or successfully ported. One of the games, Turnip Boy Commits Tax Evasion received a Best Mobile Port'22 award (Pocket Gamer Awards). And the latest game we worked on, Strange Horticulture, in cooperation with publishers Iceberg Interactive and Plug in Digital, was very successful - the game received positive reviews and high rates in the stores - 4.9 in Google Play and 5.0 in AppStore. We also have experience with more niche platforms, like Amazon Mobile, Amazon Kids, Apple TV. We are also experienced in working on PC and consoles - we work with both MacOS and Windows and all consoles - both Gen 8 and 9. We can also help with adding games to GOG, MS Store (incl. Game Pass) and EGS, SDK integration etc. Lately we also provided services on adding cross-play multiplayer support and cross-platform invites. Here's also a breakdown of services we provide: 🟪Full game or prototype development - can develop any game from scratch; 🟪Сo-development - help with the project or specific tasks (SDKs, optimization, etc.); 🟪Game testing - we have a strong QA team ready to test your game from a fresh perspective and spot any issues; 🟪Game porting - to mobile & consoles (PS, XBOX, Nintendo Switch, etc); 🟪Art production- all types art creation for 2D/3D, animations & VFX; 🟪Game design - game concept and GDD creation; 🟪Live-ops support - support & new content updates for your existing projects. We guarantee excellent quality of work, great response to change requests and friendly, mutually beneficial cooperation. We are flexible and can help you on any project stage. Reach out to us and we guarantee your full satisfaction with our work!

👋 My name is Yuri — I'm Upwork's #1 iOS developer in Ukraine. I'm the founder and lead engineer at Helicon, an award-winning mobile development team. Together, we bring decades of experience in building software with a mission of delivering exceptional results at an impressive pace. Are you looking to create an app and need an expert developer who speaks fluent English? I specialize in: — iOS development (UIKit, SwiftUI) — macOS development (Cocoa, SwiftUI) — Vision Pro, Apple Watch, and Apple TV apps — Product management & expert advice for software projects. At Helicon, we are skilled in most of the well-known Swift frameworks as well as third-parties. See the full list below: — UI Frameworks: SwiftUI, UIKit, Combine, RxSwift, The Composable Architecture (TCA) — Backend & Auth SDKs: Firebase, AWS Amplify, Supabase Swift, Auth0, Appwrite — 3D Frameworks: RealityKit, ARKit, SceneKit, Model I/O, Quick Look — Networking Libraries: URLSession, Alamofire, Moya, Apollo iOS, gRPC — Image & Animation Libraries: Kingfisher, SDWebImage, Nuke, Lottie, AVFoundation — Data Persistence Libraries: SwiftData, Core Data, Realm, GRDB, KeychainAccess — Analytics & Monitoring Tools: Firebase Analytics, Mixpanel, Amplitude, Sentry, Branch — Payments & Subscription SDKs: StoreKit, RevenueCat, Adapty, Stripe, Paddle — Developer Tools & Dependency Managers: Swift Package Manager, CocoaPods, Carthage, SwiftLint, SnapKit — Device & Platform Frameworks: CoreLocation, MapKit, HealthKit, CoreBluetooth, WidgetKit I can also assist you with app distribution, marketing, and launch using: — App Store Connect — Apple Developer Platform — Apple Search Ads — Meta Ads Manager (f.k.a. Facebook Ads Manager) My team has first-hand expertise in applying AI models like Claude Opus and GPT-5 to the mobile development workflow, allowing us to offer a great turnaround time for your project without ever sacrificing the human touch. Advanced English proficiency is a requirement for every developer working at Helicon. We also communicate freely, Ukrainian, Polish, and Russian. Don’t hesitate to send me a quick message and we will go over your idea in detail over a video call or through Upwork chat!

👋 I'm the former CEO of RadASO, an app growth expert and consultant with 12 years of experience in ASO and SEO, and 5 years in Apple Search Ads. Mail: lozenkoalexandr@gmail.com 🇺🇦 Working from Valencia, Spain (UTC+2). I can help you with: 🔹 App Store Optimization (ASO); 🔹 Apple Search Ads (ASA); 🔹 App Growth Consulting. Here's what some of my clients say: ✔ We’ve been working with Alexandr for about a year. Before that, we’d tried several other companies, but none of them was even close to Alexandr in terms of competence. I believe the numbers will speak for themselves: Run Guys — 3 million organic installs per month (1000 pages on Google Play with the search words used to find our game); Prey Day Survival is in a very competitive niche, and it has 200,000 installs per month at the same time; our new project, Mergescapes, is in an even more competitive niche — 60,000 installs per month on iOS alone, and they are mainly from the USA and Great Britain. — Denis Shevchenko, Co-Founder & CEO at GreenPixel LLC ✔ We are happy to cooperate with Alexandr. He provided us with a special ASO tool which is an extremely useful technology. It simplifies and automates keyword research and analysis and helps monitor the quality of ASO and our competitors' strategy. — Andrew Yaroshenko, creator of the dating app Fantasy Match

I’m a Narrative Designer and Game Writer with 6+ years of experience crafting immersive stories for games across PC, mobile, and tabletop. My work brings worlds to life, ensuring players feel deeply connected to characters, choices, and lore. Whether designing branching narratives, writing compelling dialogue, or building expansive worlds, I focus on player engagement and emotional impact. I also see storytelling for games as a powerful medium to communicate significant ideas and themes. With over four years as a Narrative Designer at VOKI Games, I contributed to the storytelling of Manor Matters casual mobile game, including expansions where I took on a narrative lead role. Beyond casual games, I led the narrative and game design for the indie visual novel Reflections in Amber, which placed in the top 10 at the Ukrainian Visual Novels Jam. Back to the main point, what can I help you with? ✅ Narrative Design & Quest Development – Engaging game stories, branching dialogues, immersive lore ✅ Game Scriptwriting – Cinematic sequences, interactive storytelling, player-driven narratives ✅ Character Development – Unique, complex, and emotionally resonant characters ✅ Dialogue Writing – Natural, impactful, and genre-appropriate conversations ✅ Worldbuilding & Lore Development – Creating rich settings and deep, interconnected histories ✅ Ghostwriting & Editing – Novels, scripts, comics, and professional proofreading Working with me, you get a friendly and positive attitude, full attention to your project and needs, a willingness to discuss every detail, boundless creativity, and an unwavering commitment to meeting your deadlines. Ready to craft unforgettable stories that keep players hooked? Send me a message, and let’s get started!