Hire the best Push Notifications Freelancers in Ukraine
Check out Push Notifications Freelancers in Ukraine with the skills you need for your next job.
- $35 hourly
- 4.5/5
- (24 jobs)
🌟 With over 7️⃣ years of 🔥 iOS development experience, I specialized in crafting custom user interfaces with a keen eye for detail and a robust understanding of SOLID principles. 💡 Key Skills: 📱 App Development Experience: • Deep understanding of the app development lifecycle on iOS from concept to deployment 🚀. • Versatile in creating apps, ranging from immersive games to robust enterprise solutions 🎮💼. 🎨 User Interface Design: • Commitment to intuitive and aesthetically pleasing UIs 🖌️. • Expertise in SwiftUI/UIKit and modern interface tools. 🛠️ Development Tools Proficiency: • Highly skilled in Xcode and essential iOS development tools 🗜️. • Experienced in Git and other version control systems for collaborative workflows 👥. 🌐💾 Networking and Database Handling: • Skilled in API integration and server communication 📡. • Proficient with on-device database management and interaction with remote databases 🗃️. 🔍 Testing and Debugging: • Aptitude for thorough code testing, including unit and UI tests ⚙️. • Seasoned in debugging processes to ensure app precision and stability 🛡️. 🚀 Learning and Self-Development: • Passion for continuous learning and staying at the forefront of iOS technology 📚. • Adaptive to industry shifts and app market trends 📈. 🛠️Technologies: 🏗️ Architectures: • MVC • MVVM • MVP 📱 iOS Frameworks: • SwiftUI UIKit / Foundation • MapKit 🗺️ • CoreLocation 📍 • AVFoundation 🎵 • Notification Center 🛎️ • Contacts 👥 • Keychain 🔑 • WebKit 🌐 • ARKit 🖼️ UI: • SwiftUI • Layout in code • Size classes • Storyboards / XIBs 🔄 Reactive Paradigm: • Combine • ReactiveSwift/ReactiveCocoa • RxSwift/RxCocoa 💾 Databases: • Realm • CoreData 🌎 Networking: • Alamofire • REST API • Moya • Kingfisger 🚀 SDKs: • Firebase 🔥 • OpenCV • Google Maps SDK 🗺️ • Facebook / Twitter / LinkedIn / Google SDKs 👤🐦💼🔍 • Crashlytics 👷Push Notifications
RESTful ArchitectureMapKitFlutterApple XcodeiOSModel View ViewModelMVC FrameworkFirebaseFirebase Realtime DatabaseChatGPT APICore AnimationARKitApp StoreAPICore DataIn-App SubscriptionIn-App PurchasesiOS SDKiOS DevelopmentNative App DevelopmentUIKitSwiftUISwift - $40 hourly
- 5.0/5
- (7 jobs)
Hey there 👋 I am Mykhailo and a seasoned mobile app developer with 7+ years of experience leveraging cutting-edge technologies. I'm adept at transforming mobile app ideas into real-world solutions that captivate users. My expertise extends across native ios development with Swift & Objective-C, and cross-platform mobile development for diverse platforms like Android, iOS, web, and desktop using Flutter/FlutterFlow and React native. 🚀 Specific expertise is as follows: Real-time tracking mobile app E-learning platform On-demand service & delivery mobile app Real estate/property management mobile app Marketplace mobile app E-commerce store Medical/healthcare mobile app Database management & manipulation of mobile app Financial management mobile app Why Choose Me? 🚀 In step with Technology: Constantly seeking and swiftly implementing new tech solutions. 💡 Innovative Solutions: Delivering inventive solutions, driving project advancement. 🕒 24/7 in Touch: Available for project discussions and issue resolution 📈 Results-Driven: Committed to achieving tangible outcomes and exceeding expectations. 💼 Client-Centric: Dedicated to understanding and fulfilling client needs with tailored solutions. 🔍 Attention to Detail: Ensuring accuracy and precision in every aspect of project execution. Ready to build your dream mobile app? I'm eager to collaborate and bring your vision to life. Contact me!Push Notifications
FirebaseGoogle MapsIn-App PurchasesSocial Media Account IntegrationPayment Gateway IntegrationUser AuthenticationSmartphoneFlutterFlowFlutterReact NativeSwiftAndroidiOSMobile App Development - $45 hourly
- 5.0/5
- (25 jobs)
I can develop any kind of mobile application for you. My primary skill is Android development, and I can gather a team of professionals to cover all aspects of application development, including backend, design, iOS, and frontend. I have developed more than 30 apps, and all of my clients are satisfied with the results. My stack ✔Kotlin, Java ✔Clean Architecture, MVVM, MVP ✔Jetpack, Coroutines, Dagger2/Hilt, Room, Retrofit, Glide, Firebase, Payments Tools I use: ✔Android Studio ✔Sketch, Adobe Photoshop, Figma, Adobe Illustrator Have any questions? Want to discuss your projects? Feel free to contact me and have a nice day! :-)Push Notifications
XMLAndroid SDKDagger 2AndroidFirebase Cloud FirestoreAndroid App DevelopmentJetPackAndroid Room PersistenceMultithreaded ProgrammingRetrofitFirebaseSQLiteKotlinJavaAndroid Studio - $20 hourly
- 5.0/5
- (8 jobs)
Hello and welcome! 👋 Thank you for visiting my profile. Are you looking to boost your online presence and maximize your advertising ROI? You’ve come to the right place! I’m Bohdan, a certified Google Ads and Analytics expert with over 10 years of experience helping businesses like yours succeed. Whether you're a small or medium-sized business, I’m here to craft tailored strategies that deliver real results. Here’s what I bring to the table: 🔹 **Expertise Across Platforms:** - Google Ads (Search, Display, Shopping, YouTube, Remarketing, Performance Max) - Bing Ads - Facebook & Instagram Ads - Google Analytics & Google Tag Manager (including Server-Side setup) 🔹 **Comprehensive Services:** - Full-cycle campaign management: creation, optimization, and maintenance - Data feed integration for platforms like Shopify, WooCommerce, Magento, and more - Merchant Center troubleshooting and error resolution - Advanced keyword research and ad content creation tailored to your audience - Precise tracking setup for conversions and dynamic remarketing 🔹 **Proven Process for Google Ads:** - Developing impactful PPC strategies - Setting up and optimizing ad groups, campaigns, and budgets - A/B testing to identify what works best - Competitor analysis for a competitive edge - Clear, actionable performance reports delivered monthly 🔹 **Facebook & Instagram Ads Expertise:** - Pixel setup and audience targeting (custom and lookalike) - Campaign optimization to maximize budget efficiency - Monthly reports with actionable insights 🔹 **Hard Skills:** - Strategic marketing and campaign design - Data analysis and process improvement - Sales funnel optimization - Landing page and conversion rate recommendations to boost ROI 🔹 **Soft Skills:** - Creative and analytical thinking - Excellent communication and leadership - Adaptability and a growth mindset - Decision-making under pressure 🔹 **Technical Tools I Excel In:** - Google Looker Studio for custom reports - Google Tag Manager Server Side + FB CAPI - Merchant Center and Manufacturer Center integration 🔹 **My Mission:** To maximize your ROI by driving more clicks, lowering your Cost Per Acquisition (CPA), and helping your business thrive. I’m committed to delivering measurable results and continuously improving to stay ahead of industry trends. I’ve had the privilege of working with clients worldwide and take pride in offering both one-time projects and long-term collaborations. Let’s work together to turn your advertising campaigns into a growth engine for your business. Ready to take your marketing to the next level? Let’s discuss your project today! Thank you for your time, and I look forward to helping your business succeed. BohdanPush Notifications
Search Engine OptimizationPay Per Click AdvertisingLooker StudioInternet MarketingYandex.MetricaDigital MarketingKeyword ResearchGoogle AdsSearch Engine MarketingGoogle AnalyticsFacebook Ads ManagerNative AdvertisingGoogle Tag ManagerFacebook Advertising - $35 hourly
- 5.0/5
- (19 jobs)
Hi, I am a professional iOS, watchOS, tvOS and macOS Developer. I have experience in complete iOS, tvOS, watchOS, and macOS developing apps, communicating with customers, and publishing. I’ve also developed a personal app for learning based on Ebbinghaus’s curve and an enhanced music app. So far, I’ve: ⭐️ worked on a project with >1M users (3 developers). ⭐️ worked on a project with 150k users (99.96% crash-free, 2 developers). ⭐️ leading app development from the idea stage through design, refinement, and implementation . ⭐️ worked on 15+ projects Experience: 🟢 Language: Swift, Objective-C, Python(beginner) 🟢 Architectures: MVC, MVVM+C, VIPER, TCA 🟢 Patterns: Facade, Adapter, Decorator, Factory Method, Singleton, Builder, Observer, Command, SOLID 🟢 Database framework: CoreData, Realm 🟢 Networking: REST API(URLSession, Alamofire, Moya), GraphQL(Apollo) 🟢 Multi-threading: GCD, OperationQueue, Async/Await 🟢 Reactive programming: ReactiveSwift, ReactiveCocoa, Combine 🟢 VCS: Git 🟢 CI: Fastlane 🟢 Tools: Xcode, Figma, Sourcetree, Sketch, Zeplin, Postman, Proxyman, Xcode instruments 🟢 Apple’s Framework: UIKit, SwiftUI, Combine, Foundation, Core Data, Core Location, AV Foundation, MapKit, Core Animation, Contacts, CoreMotion, CarPlay 🟢 Other frameworks: Keychain, R.swift, Firebase, FBSDK, Google SDK, Stripe, Google Places, SnapKit, Google AdMob 🟢 Project management tools: JIRA, Trello, Clickup. 🟢 Other: In-App Purchases, Push Notifications 🟢 Operation system: iOS, tvOS, watchOS Highlights: ⭐️ App Features: In-App Advertising, Payment Functionality, Map Integration, Bluetooth, Location-Based Service, Camera, Social Media Account Integration, QR & Barcode Scanner, Advanced Analytics, Offline Functionality, Review or Feedback Collection, User Profile Creation, Push Notifications, In-App Purchases, User Authentication, In-App Search, Chat & Messaging Software, API Integration, Application Security, AI Text-to-Speech, Face Detection, Microphone, Motion Sensor, In-App Support ⭐️Mobile App Dev Tools: Firebase, Google Analytics, iOS Development, Apple Xcode, Alamofire, Twilio API, Mobile App Development, GraphQL, OpenAI API, RESTful Architecture, iOS SDK, AFNetworking, RxSwift, GitHub ⭐️ Devices: Tablet, Smartphone, TV Set ⭐️ Mobile App Dev Deliverables: Native App Development, Mobile App Development, Mobile App Localization, Mobile App Redesign, Mobile App Testing, Payment Gateway Integration, Mobile App Improvement, Mobile App Bug Fix, iOS Development, Mobile App Development Consultation ⭐️ Mobile App Dev Databases: SQLite, Realm Database, Firebase Cloud Firestore, Firebase Realtime Database ⭐️ Mobile Platforms: tvOS, iOS, iPadOS, macOS, watchOS ⭐️ Apple Development Tools: HealthKit, SpriteKit, UIKit, Core Bluetooth, CloudKit, StoreKit, AVKit, PassKit, EventKit, HomeKit, SiriKit, MapKit, Core Data, PushKit, TVMLKit, WebKit, WatchKit ⭐️ Mobile Programming Languages: Objective-C, Swift ⭐️ Other keywords: Apple TV Application, Apple HealthKit, Apple Watch Application, Apple Watch, Apple Motion, SwiftUI, iPhone, iPhone & iPad Apps, Mobile App Thanks for reading that far🙂. Let’s help to grow your business together - feel free to contact me. Best regards, TarasPush Notifications
AI Mobile App DevelopmentMobile App DevelopmentiOS SDKwatchOStvOSiOS DevelopmentAV FoundationRESTful APIUIKitSwiftSwiftUIiOSApple XcodeiPad App Development - $30 hourly
- 5.0/5
- (9 jobs)
After exploring various no-code platforms, I’ve chosen to specialize in FlutterFlow, focusing on mobile and web application development. With a solid understanding of user interface design, testing, and publishing to Google Play and the App Store, I now fully concentrate on delivering robust solutions through FlutterFlow. 💼 Services: No-Code App Development: Expertise in building a wide range of applications, including chats, dashboards, accounting systems, and promo code systems, all developed through FlutterFlow. Integration & Automation: Skilled in integrating payments, subscriptions, various authentication methods, and third-party APIs, fully within the FlutterFlow environment. Push Notifications & Cloud Functions: Setting up push notifications and implementing custom cloud functions for enhanced app performance and scalability. 🛠️ Tech Focus: FlutterFlow: My current go-to platform for cross-platform mobile and web app development, enabling efficient and feature-rich applications. Firebase/Supabase: Experienced with cloud integration, real-time databases, and authentication services within FlutterFlow projects. Responsive Design: Ensuring apps are fully optimized for various devices and screen sizes, all done through FlutterFlow. 🌱 Approach: I focus on creating applications that are not only functional but also intuitive and user-friendly. My current work with FlutterFlow allows me to deliver fast, flexible, and scalable solutions tailored to project-specific needs. 🤝 Collaboration: Whether working independently or as part of a team, I contribute to all stages of development — from concept to deployment, entirely through FlutterFlow. I’m always ready to tackle new challenges and adapt to the unique requirements of each project. ✉️ Let’s Connect: Feel free to reach out to discuss your project or explore collaboration opportunities. I’m excited to help bring your ideas to life using FlutterFlow!Push Notifications
QR & Barcode ScannerSupabaseAdaloCodaMake.comAirtableNo-Code DevelopmentAndroid AppHybrid App DevelopmentiOS DevelopmentAndroid App DevelopmentMobile App DevelopmentMobile AppFlutterFlow - $28 hourly
- 5.0/5
- (3 jobs)
I’m a Mobile Developer with over 8 years of experience specializing in Flutter and FlutterFlow to craft high-performing, user-centric mobile applications for iOS and Android. My focus is on delivering sleek, responsive, and scalable mobile apps that align with your business goals. From mobile app development to seamless integrations and cloud backend services, I’m here to bring your ideas to life! 🚩 Why choose me? 💠 Mobile App Development Expert: Proficient in Flutter and FlutterFlow, I specialize in building cross-platform mobile applications that are fast, scalable, and visually appealing. 💠 Backend Integration Specialist: Expertise in connecting mobile apps to powerful backend systems using REST APIs, GraphQL, Firebase, and more. 💠 UI/UX Enthusiast: Hands-on experience in crafting intuitive, pixel-perfect mobile interfaces that enhance user satisfaction. 💠 Cloud & DevOps Support: Skilled in integrating cloud-based solutions like AWS, Firebase, Google Cloud to ensure your apps are future-proof and scalable. 💠 Third-Party Integrations: Proficient in integrating payment gateways, authentication systems, push notifications, and analytics for a complete mobile experience. 🚩 Why Partner with Me: 💠 Client-Focused Development: I tailor every app to your unique business needs, ensuring high-quality and customized solutions. 💠 Clear Communication: I prioritize transparency, frequent updates, and seamless collaboration throughout the project lifecycle. 💠 Problem Solver: I enjoy tackling challenges and delivering innovative, user-driven mobile solutions that make an impact. 🚩 Technical Expertise in Mobile Development 💠 Cross-Platform Frameworks: Flutter (Dart), FlutterFlow 💠 State Management: Provider, Riverpod, Bloc, GetX 💠 Backend Integration: REST APIs, GraphQL, Firebase, AWS, Supabase 💠 UI/UX Design: Responsive Design, Material Design, Custom Widgets 💠 Cloud Solutions: Firebase Realtime Database, Firestore, Cloud Functions 💠 Third-Party Integrations: Stripe, PayPal, Twilio, Google Maps, Push Notifications 🚩 Mobile App Development Deliverables: 💠 Cross-Platform Mobile Applications (iOS & Android) 💠 Backend Integration & API Development 💠 Responsive, Intuitive UI/UX Designs 💠 Cloud-Based Solutions & Hosting 💠 Third-Party API Integrations like Stripe, Twilio, Firebase. 💠 App Deployment to Play Store and App Store I thrive on crafting delightful, user-friendly mobile applications and solving complex development challenges. Whether it’s creating a stunning user interface, integrating backend systems, or optimizing performance, I’m dedicated to delivering results that make a difference. 💡 Let’s build your next mobile app together! Looking forward to collaborating and turning your vision into reality. Thanks.Push Notifications
Ionic FrameworkAI App DevelopmentSwiftJavaNode.jsiOSDartAndroidSupabaseFirebaseAPI IntegrationFlutterFlowReact NativeFlutter - $27 hourly
- 5.0/5
- (3 jobs)
★★★★★👋🏻 𝐆𝐫𝐞𝐞𝐭𝐢𝐧𝐠𝐬 💖★★★★★ I am a highly skilled and experienced Mobile App Developer specializing in cross-platform development using Flutter, React Native (Expo & CLI), Ionic/React/Vue/Angular, Xamarin, .NET MAUI, and native-platform development using Swift/Objective-C, Kotlin/Java. With a strong focus on delivering exceptional mobile experiences, I have successfully developed and launched numerous applications across various industries. I am dedicated to delivering top-notch work, ensuring high quality, and providing timely updates to my clients. My Skills: ● Native-Platform Development: Swift/Objective-C for iOS, Kotlin/Java for Android ● Cross-Platform Development: Flutter, React Native, Ionic, Xamarin, .NET MAUI ● Programming Languages: Dart, Js/Ts, C# ● UI Frameworks: Flutter Widgets, XAML, React Native, SwiftUI, Jetpack Compose ● Front-End Development: HTML, CSS, Bootstrap, Material Design ● Back-End Integration: GraphQL, RESTful APIs, JSON, XML ● Database Integration: SQLite, Firebase Realtime Database, MySQL, MongoDB, PostgreSQL ● Version Control: GitLab, GitHub, Bitbucket ● Testing and Debugging: Xamarin Test Cloud, Flutter Testing ● Deployment and Publishing: App Store, Google Play Store Additional Skills: 𝐂𝐡𝐚𝐭𝐛𝐨𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: 🌟GPT-3, GPT-4, GPT-4o, GPT-4 Turbo, OpenAI, HuggingFace, IBM Watson Assistant, Claude, DeepSeek, Grok 🌟Transformers, Botpress, Dialogflow, Langchain 🌟Chatbot Integration, API Development, Prompt Engineering, Model Training and Fine-Tuning, Conversational Design, Sentiment Analysis, Named Entity Recognition, Text Classification, Language Generation, Speech-to-Text Integration, Intent Recognition 𝐈𝐦𝐚𝐠𝐞 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧: 🌟GANs, DeepDream, DALL-E, CLIP, Stable Diffusion, Midjourney, Flux 🌟TensorFlow, PyTorch, Keras, OpenCV, Detectron, YOLO, Tesseract (OCR - Optical Character Recognition), Scikit-image, Caffe2, Hugging Face Transformers 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈 / 𝐂𝐚𝐥𝐥𝐢𝐧𝐠 𝐀𝐠𝐞𝐧𝐭𝐬: 🌟DeepVoice, Google Duplex, Microsoft DeepSpeech, Mozilla DeepSpeech, Google Text-to-Speech API, Microsoft Azure Speech SDK 🌟Microsoft Bot Framework, Rasa, Deepgram, Mozilla DeepSpeech, SpeechRecognition Additional Libraries and Frameworks: ● Xamarin.Forms: Prism, MVVMCross, FreshMVVM ● Flutter: Provider, Dio, Retrofit, MobX, GetIt, Firebase SDKs ● Swift (iOS Development): Alamofire, SDWebImage, MapKit, Firebase Cloud Messaging, OneSignal, Stripe, PayPal, Braintree, Facebook SDK, Twitter API, Google Sign-In, Google Analytics, Firebase Analytics, AppCenter Analytics ● Kotlin (Android Development): Retrofit, Dio, Glide, Fresco, Google Maps API, Firebase Cloud Messaging, OneSignal, Stripe, PayPal, Braintree, Facebook SDK, Twitter API, Google Sign-In, Google Analytics, Firebase Analytics, AppCenter Analytics ● React Native: Retrofit, ImagePicker, Firebase Cloud Messaging, OneSignal, Stripe, PayPal, Braintree, Facebook SDK, Twitter API, Google Sign-In, Google Analytics, Firebase Analytics, AppCenter Analytics ● Ionic: Facebook SDK, Twitter API, Google Sign-In, Stripe, PayPal, Braintree, Firebase Cloud Messaging, OneSignal, Google Analytics, Firebase Analytics, AppCenter Analytics ● Xamarin: Xamarin.Essentials, Newtonsoft.Json, SQLite.NET, Refit ● Connection: Bluetooth, WiFi, NFC ● Networking: Retrofit, Alamofire, Dio ● Image Processing: Glide, Fresco, SDWebImage, ImagePicker ● Data Visualization: Charts, MPAndroidChart, Flare ● Location Services: Google Maps API, MapKit, Geolocator ● Push Notifications: Firebase Cloud Messaging, OneSignal ● Analytics: Google Analytics, Firebase Analytics, AppCenter Analytics ● Payment Integration: Stripe, PayPal, Braintree ● Social Media Integration: Facebook SDK, Twitter API, Google Sign-In With a comprehensive background in mobile development, I have successfully delivered a wide range of applications tailored to my clients' specific requirements. I have developed applications for industries such as e-commerce, social networking, healthcare, finance, and more. Please feel free to reach out to me for further discussion.Push Notifications
Artificial IntelligenceAmazon Web ServicesiOSAndroidSmartphoneNode.jsFirebaseAI App DevelopmentIonic FrameworkReact NativeFlutterFlowFlutterKotlinSwift - $38 hourly
- 5.0/5
- (13 jobs)
Hi 👋, I'm from Ukraine and work from a safe place! I am a web and mobile developer who came all way from Trainee to Lead dev in 5 years. I quickly progressed to become a team lead. My experience allows me to achieve high-quality work. I pay close attention to details, I also have good organizational and communication skills. The apps I developed have: ⭐️ High ratings in app stores 🎉 A lot of positive feedback 📲 300K+ downloads 📌 What's my benefit? ✓ 4+ years of React/React Native/Hybrid App Development experience. ✓ I have experience as Lead Front End Developer on mobile app projects ✓ UX orientated developer. ✓ I’m into writing clear and well-structured code. I prefer using TypeScript. ✓ I have experience in deploying and publishing mobile apps to app stores. ✓ My English is fluent. 📌 What I work with: ✓ Web Development ✓ Hybrid App Development 📌 My main tech expertise: ✓ React ✓ React Native ✓ JavaScript ✓ TypeScript ✓ Git ✓ Firebase ✓ GraphQL (Apollo, Relay) ✓ Redux ✓ Redux Saga ✓ GatsbyJS ✓ Push notifications via Firebase Cloud Messaging ✓ Twilio Video (WebRTC) for React Native ✓ Twilio Programmable Chat ✓ WebSockets via GraphQL Subscriptions I look forward to connecting with you! My tech expertise: TypeScript, React.js, React-Apollo, React Storybook, React Native, Vue.js, Node.js, Python, Django, Next.js, Nuxt.js, Redux, Redux-saga, GatsbyJS, GraphQL, Stripe, Firebase, Firebase Client Android, Firebase database, Firebase Realtime Database, Axios, Twilio, Twilio API, Mapbox, Three.js, WebSockets, Material-UI, Bootstrap, Tailwind, UI, UX, Brand Consulting, Logo Design, Style Guide Development, Figma. Please contact me and let's create a successful project together!Push Notifications
Hybrid App DevelopmentApollo.ioFirebasestyled-componentsReact NativeMapboxMobile App DevelopmentRESTful APIReduxWeb DevelopmentTypeScriptJavaScriptGraphQLReact - $30 hourly
- 4.9/5
- (76 jobs)
I am a highly-qualified professional with a ten-years experience in developing mobile applications for Android, iPhone, iPad. I have successfully launched over 70 projects in various domains and technologies, ranging from simple apps to complicated projects. My main objective is a process-oriented approach that combines experience and creativity to find the most productive solutions and succeeding results. I am proficient enough in working in close collaborations with offshore clients as well. Flexibility and keeping ahead with technologies are my strengths, so I can guarantee the high quality of the work done. General Architecture: MVP, MVC, MVVM, MVI, Viper, Clean Architecture Languages: Java, Kotlin, Objective С, Swift Databases and storages: SQLite, Firebase, Realm, iCloud, Dropbox, Amazon S3, Couchbase Project Managment: Redmine, Slack, Asana, Trello, Jira SCV: Git, Mercurial Local/Push-Notifications, Google API Code review Analytics event Expirience in publishing applications to GooglePlay Experience in debugging and profiling applications, Crashlytics, experience with legacy code iOS Xcode, CocoaPods, SPM Using frameworks: UIKit (storyboards, autolayout, sizeClasses), SwiftUI, Foundation, CoreGraphics, CoreAnimation, Core Bluetooth (BLE), CoreLocation, CoreData (MagicalRecords), AVFoundation (launching video, audio), EventKit (reminders, work with events in apple calendar), WebKit, LocalAuthentication, DI, Snapkit, Google ads RestAPI, GraphQL Experience with network and server-side applications (Alamofire, URLSession, AFNetworking, WebSocket, Starscream) APNS, FCM , deeplinks Multithreading (GCD, NSOperationQueue) Experience with maps (Google, Apple, Yandex) In-App Purchase, PayPal, Stripe, ЮMoney Localization Reactive programming: RxSwift, Combine Android Android Studio, Gradle Using frameworks: Android SDK, Dagger, Hilt, Retrofit, OkHttp, Glide, Firebase services, Koin, Coil RestAPI, GraphQL Experience with maps (Google, Yandex) In-App Purchase, PayPal, Stripe, ЮMoney Localization Reactive programming: RxJava, CoroutinesPush Notifications
EnglishRxJavaRxSwiftAPI IntegrationObjective-CSwiftMobile App DevelopmentFirebaseJavaKotlinMap IntegrationLocation-Based ServiceAndroidiOS - $30 hourly
- 4.9/5
- (4 jobs)
Hi, my name is Oleksii, I am a developer for Apple platforms with 12 years of experience. Currently I maintain MacPaw/OpenAI GitHub repo. Ex MacPaw, ex Onix-Systems. Sometimes working on my pet project - Evenly. I’ve worked on a very large number of different projects, but my expertise lies in apps that do most work on the client side (I.e. without backend): The apps would work heavily with database and file system, either directly or through corresponding frameworks: Core Data, PhotoKit, GRDB etc. Such apps would usually require efficient utilization of CPU and memory, so I’ve mastered tools for that: Grand Central Dispatch, Combine, Swift Concurrency I like to organize the code in a way that makes sense. There are many best practices on how to do a better organization: SOLID, composition over inheritance, less coupling more cohesion, using design patterns etc. I know most of it and have an experience using them, so now I don’t just use complex stuff for the sake of it, but apply what’s needed where needed I am also a fan of keeping quality and performance in check, so I would use Crashlytics, Sentry, MetricsKit to log errors, collect metrics and keep an eye on crashes Not 100% of the time, but more and more I use TDD to do faster initial implementation through a short feedback loop, and also to be more sure that I don’t break anything during refactoring later I’ve also come across many very hard-to-debug issues in my career, so I had to become better at debugging. I like to use Instruments like Profiler to find inefficient CPU usage. I also usually prepare logging in advance so that when user has an issue and we can’t reproduce it locally, we could get as much information from them as we can without asking them 10 times. I enjoy automation, so when there is a chance, I would gladly write a script or use some tool or technique to not do it manually and save time. Below are some info about my precious employment. See Employment History on Upwork Profile for more details. First half of my career was in outsource company Onix-Systems, where I worked on a lot of very different projects, estimated pre-sales, and lead the whole iOS department of the company. During that time I also made my own startup of a simple loan recording app Evenly, which was my main playground to learn some development/product/marketing topics deeper that I could while working main job. Then I moved to MacPaw which is a product company, where I've worked for 6 years in a product team. There I learned industry standards and state of the art approaches to full-cycle development of a product, marketing, working in a focused team, development processes, infrastructure etc. There I worked on such apps: Gemini Photos (now CleanMyPhone), Gemini 2, Swoosh Video Editor.Push Notifications
NotarizationConcurrent ComputingMultithreaded ProgrammingUnit TestingAmplitudeSQLBox2DMercurialGitCore DataFirebaseiOS DevelopmentObjective-CSwift - $30 hourly
- 5.0/5
- (4 jobs)
✅ 7+ years of experience as a React Native Developer. ✅ SaaS Mobile App Expert ✅ 10 Mobile Apps Released ✅ React Native Mobile Expert ✅ UX-First Applications ✅ On-Time and Cost-Effective Delivery ✅ Future-Proof Solutions Showing a Minimum 42% ROI 🏄🏼♂️ I’m Vlad, a dedicated Mobile App Developer with a strong focus on SaaS Mobile App Development. Whether it’s building your app from the ground up or modernizing an existing product for iOS and Android, I’m here to help you craft scalable, intuitive, and cross-platform mobile applications that will drive user retention and growth. 🏄🏼♂️As a Mobile App Developer and Full Stack Developer with deep expertise in SaaS Mobile App, I bring over a decade of experience in building high-performance cross-platform mobile application. Whether you're looking for a skilled Mobile App Designer or need assistance with Hybrid App Development, I have the right tools and expertise to deliver outstanding products. 🏄🏼♂️I specialize in React Native development, crafting high-performance mobile apps for both iOS and Android platforms. I leverage JavaScript and React JS to deliver user-friendly and scalable solutions, ensuring seamless performance and an exceptional user experience across all devices. What You Can Achieve With Me: ✔ ️ Transform an old application into a sleek, user-friendly product that became App of the Day on the App Store. ✔️ Develop a custom business model with us to double the Gross Profit Margin (GPM) of your product. ✔️ Design a user-centric mobile application that received a Dribbble Award for exceptional UX/UI design. 💻 Core Strengths & Technologies React Native, Expo: For rapid, cross-platform development on iOS and Android, saving time and cost. Node.js, AWS: Secure, scalable backends that grow with your user base. API Integration: Experience with Stripe, PayPal, real-time data APIs, and push notifications. CI/CD Pipelines: Efficient, automated deployments to ensure your project stays on track. 🚀 MVP & Product Launch From feature planning to app store deployment, I’ll ensure a smooth launch and rapid market entry with: Clear Milestones & Rapid Iterations for quicker time to market. Robust Authentication and user management for secure access. High-Quality UX/UI to increase conversion rates and retain users. ⚙️ End-to-End Collaboration I specialize in React Native development, crafting high-performance mobile apps for both iOS and Android platforms. Architecture & Planning: Translating your idea into actionable plans, focusing on scalability and user-centric designs. Implementation: Prioritizing performance, reliability, and creating future-proof solutions. Post-Launch Support: Ensuring your app’s continuous evolution through seamless updates and ongoing improvements. 🤝 Why Partner With Me? Speed & Reliability: With 10 successfully released apps, I showcase a dedication to on-time and cost-effective delivery. Collaborative Process: I value transparent communication, and my experience can help you double your GPM or secure critical funding for your product. Let’s build a Mobile Application that stands out, scales with your business, and creates an exceptional user experience. 📱 Platforms I Work On: iOS App Development Android Development SaaS Application Development ⚙️ Technologies: React Native, Flutter, Bubble, Kotlin, Expo.io, React, TypeScript, AWS, Firebase, React Native Firebase, React Native WebRTC, Ionic, Full Stack Development, Full stack Python, SaaS Development, React JS, JavaScript, React Native Expo Web Development: I’m also skilled in creating robust, modern web apps using React JS, and JavaScript. Additionally, I can leverage my expertise as a Business Analyst, perform Data Scraping, develop with Python, integrate WebRTC for real-time communication, work with JSSIP protocols, After Effects Animator, provide FinTech consultant payment systems, and Roku developer app to expand your platform. Let’s collaborate to bring your Mobile App Development project to life. Contact me today to start planning your next SaaS mobile success story!Push Notifications
Amazon Web ServicesAPI IntegrationMobile App DevelopmentFirebasePythonTypeScriptAndroidiOSNode.jsReact NativeWeb DevelopmentReactVue.jsJavaScript - $39 hourly
- 4.9/5
- (103 jobs)
🚀 I help clients create high-performing, scalable apps that reach millions of users. From migrating Xamarin apps to .NET MAUI to developing apps from scratch, I deliver measurable results: ✅ 40% better performance ✅ 99% crash-free users ✅ 3x more downloads in stores Additionally, I conduct in-depth quality reviews of existing projects to ensure continuous improvement, having successfully worked with over 50 clients. What I Offer: 💡 Unmatched Expertise in Flutter & Xamarin I help clients achieve top-tier performance with cross-platform mobile development, ensuring seamless user experiences and fast load times. ⚡ Client-Focused Approach I prioritize your business goals, ensuring that every solution I provide is tailored to your specific needs, with a commitment to clear communication and over-delivering on expectations. 🚀 Proven Track Record With years of experience working with top-tier clients, I have consistently delivered impressive results. From faster app performance to higher engagement rates and better user satisfaction, my work speaks for itself. Client Testimonials: • “Vitalii did a great job on our Xamarin-based mobile application. We will definitely hire him again for any future work.” $56,707.00 • “Vitalii worked quickly on the tasks assigned to him and also familiarized himself quickly with the topics. He has genius knowledge of Xamarin Forms. It was a pleasure working with him.” $13,656.42 • “Vitalii and his team are a pleasure to work with. They are always willing to listen, share ideas, and adapt quickly to project changes.” $70,705.83 🚀 Your app’s not started or it’s dragging—let’s fix that. I’ll take your idea and build it into something solid, or speed up what’s already there. Ready to kick things off? Message me today and let’s make it happen. Keywords: cross-platform app development, mobile app architecture, mobile UI/UX optimization, hybrid app development, mobile performance tuning, enterprise mobile solutions, API integration, RESTful API development, mobile app consulting, app modernization, legacy app migration, iOS and Android development, custom mobile applications, full-stack mobile development, user-centered mobile design, codebase optimization, mobile app refactoring, native-like performance, cloud-connected apps, mobile MVP development, business-focused app development, app lifecycle management, continuous deployment for mobile, offline-first mobile apps, cross-platform strategy, mobile-first development, modular app architecture, test-driven mobile development, secure mobile development, mobile accessibility compliance, integration with third-party SDKs, reusable component development, platform-specific customization, performance monitoring and crash analytics, team collaboration and mentorship, agile mobile development, mobile project planningPush Notifications
StripeAuthorize.NetPoint of Sale & Payment SystemsCRM DevelopmentGeoreferencingGoogle PlayApp MarketplaceFlutterAPI IntegrationChat & Messaging SoftwareSQLiteLocation-Based ServiceXamarinFirebase - $42 hourly
- 5.0/5
- (2 jobs)
🚀 iOS Developer | Swift, SwiftUI, UIKit, Obj-C | 30+ Launched Apps | 200+ App Store Rejections Resolved 🌟 Top Rated Plus | 100% Job Success Score Hi! I’m Kyrylo — a results-driven iOS Engineer with over 5 years of experience, 30+ successfully launched apps, and 200+ App Store rejections resolved. I build high-performance, scalable, and future-proof applications for iOS, iPadOS, macOS, watchOS, and tvOS. I take full ownership of your app — from design implementation and architecture setup, to release optimization and long-term support. 🌟 Why Work With Me? ✅ Top Rated Plus – Top 9% of Upwork Talent ✅ 100% Job Success – Clients consistently return ✅ 30+ Published Apps – Real-world App Store expertise ✅ 200+ App Store Rejections Resolved – Compliance expert ✅ Ultra-Fast Response – Clear and proactive communication ✅ Deep Apple Stack Knowledge – True Apple ecosystem dev 🧰 Core Technical Skills 🚀 Languages & Platforms • Swift (5.9), SwiftUI, Objective-C • UIKit, AppKit, Combine, Core Graphics • C, C++, JavaScript (JSBridge), WebRTC, WebKit • tvOS, watchOS, macOS, Catalyst 🧱 Architecture & Design Patterns • MVVM, VIPER, MVC, Clean Architecture • SOLID, TCA (The Composable Architecture), RIBs • Coordinator Pattern, Dependency Injection (Swinject, Resolver) • Combine + Redux-like state management • Modular architecture and feature-based code splitting 📡 Networking & API • URLSession, Alamofire, Moya • REST, GraphQL, gRPC • WebSockets, MQTT, Socket.IO • Background Tasks, Push Notifications, Remote Config 🧮 Databases & Persistence • CoreData, Realm, SQLite, GRDB • Firebase Realtime Database, Firestore • iCloud / CloudKit, Keychain, Secure Enclave • UserDefaults, App Group Shared Storage 🔐 Authentication & Security • Apple Sign-In, Firebase Auth, OAuth 2.0 • JWT, SSO, 2FA, biometric auth (Face ID, Touch ID) • DeviceCheck, AppAttest, Keychain Access 💰 Payments & Monetization • StoreKit 1 & 2, RevenueCat, Subscriptions • Apple Pay, Stripe, PayPal • In-App Purchases (consumable/non-consumable), sandbox testing • Promo codes, offer codes, trial setup 📊 Analytics & Crash Reporting • Firebase Analytics, Crashlytics • Mixpanel, Amplitude, Sentry • Custom logging frameworks, DebugTools, MetricKit ⚙️ DevOps, Testing & CI/CD • Xcode Cloud, Bitrise, GitHub Actions, Fastlane • XCTest, Quick/Nimble, Snapshot Testing • TestFlight, Beta testing, A/B Testing • Code coverage, static analysis (SwiftLint, SonarCloud) 📱 Types of Apps I Build ✅ Enterprise Tools & B2B Solutions – Mac & iPad apps for internal systems ✅ Health & Wellness – HealthKit, CareKit, Mindfulness APIs ✅ FinTech & Crypto – KYC/AML flows, realtime charts, biometrics ✅ E-Commerce & Marketplaces – Complex cart flows, product filters, custom UI ✅ Social & Messaging – WebSockets, group chats, mentions, push notifications ✅ Streaming & Media – AVFoundation, AirPlay, DRM, Apple TV support ✅ Smart Home / IoT – HomeKit, CoreBluetooth, Zigbee/MQTT integration 🔧 Apple Cloud & Backend Experience • CloudKit, Key-Value Store, App Groups • Firebase – Auth, Hosting, Functions, Messaging • AWS – S3, Cognito, Lambda, EC2, DynamoDB • Backend-as-a-Service: Supabase, Hasura, Parse • App Automation – Shortcuts, SiriKit, AppleScript, Background Sync • Push Services – APNs, Firebase Messaging, VoIP pushes 💬 Why Clients Keep Coming Back ⭐️ End-to-end ownership – From idea to App Store ⭐️ Clean, scalable code – Written for performance & growth ⭐️ Deep Apple ecosystem understanding – Not just iOS ⭐️ Rejection-proof development – I’ve fixed 200+ App Store issues ⭐️ Crystal-clear communication – No micro-managing needed ⭐️ Figma-to-Code fluency – Pixel-perfect UI implementation ⭐️ Fully async-ready – Combine, async/await, concurrency best practices 📬 If you’re looking for a trusted iOS/macOS expert to build, launch, or rescue your app — let’s talk!Push Notifications
Core LocationMapKitWatchKitCore MLGitHubAlamofireCore DataSwiftUIIn-App SubscriptionFirebaseSnapKitRealm DatabaseUIKitSwift - $50 hourly
- 5.0/5
- (6 jobs)
🟢 Enjoyed building apps for startups and mature businesses. 📱I'm an iOS developer with more than 6 years of strong experience. I have worked as software engineer and software development team leader. Accurate and well organised, always looking for best practices and efficient solutions. I believe application code should be maintainable and business behind that code should be successful. That means UI and UX also matters a lot. Here is a list of my competencies: 🌟 Programming languages: * Swift * Objective C and Java as supporting 🌟 Custom UI interfaces and animations with SwiftUI 🌟 Networking: * URLSession * GraphQL 🌟 Geolocation * ArcGIS * Apple Maps 🌟 Async programming * Combine * Structured Concurrency * GCD 🌟 Services and frameworks * HealthKit * Push Notifications * AVFoundation * MusicKit * Bluetooth Low Energy * Core Data * Apollo * Salesforce * Google Analytics * Mixpanel 🌟 App management: * AppStore Connect * TestFlight * App Center * Fastlane 🌟 Project management * Jira * Trello * Monday * Asana 🌟 Code management * GitHub * Bitbucket 🌟 Tools * Xcode * Instruments * Charles Proxy * Proxyman 🟢 In my recent applications, I have worked with such domains: - Health care, AI - Entertainment - Geolocation and risk management Years of experience allows me to implement wide range of projects for your business - from first prototype to final product. Developing applications is my passion. My goal is to bring your ideas to reality, doing the job accurately and on time. Continuously tracking guidelines, technical trends and modern solutions helps me to deliver top class products. Therefore SwiftUI development is my current focus. Let's change this world together to the better!Push Notifications
Unit TestingMixpanelMusicKitCore LocationiPad App DevelopmentSalesforce Marketing CloudArcGISiOS SDKGoogle AnalyticsHealthKitCore DataCore BluetoothiOS DevelopmentSwift - $35 hourly
- 5.0/5
- (7 jobs)
Hi! I'm an iOS developer passionate about crafting clean, high-performance apps that deliver smooth user experiences. I love solving complex challenges that push my skills and drive innovation. 🏆 My expertise includes: - Swift - SwiftUI - iOS SDK - Firebase - UIKit - CocoaPods/Swift Package Manager - AVFoundation - Core Animation - Jira, Github, TestFly - Architectural patterns (MVVM, MVP, VIPER etc) - SOLID principles - TDD approach - Agile methods etc. 🎯 Whether you need a new app from scratch, performance optimization, or feature enhancement, I’m here to help! 📩 Let’s build something great together—reach out today! ______________ * Need a wider range of services? No worries, you are on the right path anyway. I'm working in association with the 90-person-strong TOP Rated Plus Agency - PECODE. You can count on us if you need experts in UX/UI design, Mobile app development, Quality Assurance ( manual & automation). We will support you at each stage of development: 🥇 Before the start, we provide you estimates based on project requirements analysis and specification 🥇 Take care of the web product's development from needs to production 🥇 Support and improve the product after realisation. Since 2017 we bring client's ideas into reality, and we are looking forward to starting the collaboration with you!Push Notifications
Cocoa APIiOS SDKUser AuthenticationIn-App PurchasesFirebaseMap IntegrationOffline FunctionalityReview or Feedback CollectionSmartphoneTabletMobile App DevelopmentSwiftiOSiPadOS - $35 hourly
- 5.0/5
- (51 jobs)
Full-stack developer specializing in Java for robust backend systems and Flutter for sleek, cross-platform frontends. Java Enterprise Development. 13 years of hands-on experience building robust Java enterprise applications, specializing in custom development for open-source ERP systems. Strong expertise in business process automation and enterprise data modeling. Flutter Development. 5 years of experience creating high-performance cross-platform applications with Flutter, covering mobile, web, and desktop platforms. Proven ability to develop complex solutions, including networking, video streaming, marketplaces, and social applications. Backend Expertise. Capable of designing and integrating backend solutions, whether leveraging cloud services like Firebase and AWS or implementing custom Java-based architectures. Experienced in implementing and automating testing processes, including unit testing and integration testing, to ensure software reliability and maintainability. With a deep understanding of software development and a passion for creating scalable, efficient applications, I bring a results-driven approach to every project.Push Notifications
Apache OFBizJ2EESpring FrameworkFlutterFirebaseDartAndroid App DevelopmentKotlinJava - $40 hourly
- 5.0/5
- (18 jobs)
I’m a Flutter-focused mobile developer with over 7 years of experience and 20+ apps launched on both the App Store and Google Play. In most of these projects, I took the lead as the sole developer - from shaping the idea and choosing the tech stack to development, testing, and launching. I’ll guide you through the process of turning your app idea into a polished, high-performing product your users will love and return to. I build with clean, well-tested, and scalable code - so your app is not just great today, but easy to grow tomorrow. ✅ Verified & Top Rated Mobile Developer on Upwork ✔️ 100% Job Success | 5-star rating ✔️ 10+ apps published ✔️ Deep experience with both iOS and Android using Flutter & Dart Clear and consistent communication is key - I’ll keep you in the loop with regular progress updates via Upwork, Zoom, or whatever works best for you. You’ll have a working version on your phone early and often, so we can build your app exactly the way you envision it. Let’s connect! Drop me a message or invite me to your job - I’d love to hear more about your project and see how we can bring it to life. 🚀 Frameworks and programming languages · Cross-platform App Development: Flutter & Dart (iOS, Android, Web, Desktop) 📚 SDKs and libraries · Database + Auth: Firebase, Supabase, Hive, NoSQL, PostgreSQL · Payments / Subscriptions: Stripe, RevenueCat, Superwall, Square · Maps / GPS Location: Mapbox, Google Maps, Google Places API, OpenStreetMap · Push Notifications: FCM, OneSignal, Supabase · Analytics and Performance Monitoring Google Analytics, MixPanel SDK, Crashlytics · Social Media Integrations: Facebook, Twitter, Instagram, LinkedIn, Snapchat · Cloud Services: Google Cloud Platform · Cloud Functions: Firebase Functions, NodeJs, Firebase Hosting · Bluetooth Low Energy Device Connection / Integration · Advertising and Monetization: Google AdMob, Facebook Audience Network SDK, MoPub SDK · AI: OpenAI API, Whisper SDK · No Code / Low Code Builders: FlutterFlowPush Notifications
Apple XcodeFlutterAndroid App DevelopmentFirebaseSwiftFirebase Cloud FirestoreIn-App PurchasesDartiOS DevelopmentAndroidKotlinMobile App DevelopmentHybrid App Development - $35 hourly
- 4.6/5
- (26 jobs)
I have been working professionally as an iOS Developer since 2014. Through those years I have become advanced in developing full feature apps in both Objective-C and Swift. If you would like to hire a result-oriented, reliable and responsive person who is getting the job done, and whose key to success is attention to details, then feel free to contact me!Push Notifications
iPad App DevelopmentMac OS App DevelopmentApple XcodeiOSTabletUser AuthenticationIn-App PurchasesMobile App DevelopmentAPI IntegrationSwiftObjective-CiOS DevelopmentNative App Development - $40 hourly
- 4.9/5
- (4 jobs)
Hi, With over 8 years in the IT sector, I specialize in mobile app development for both iOS and Android platforms, as well as in related disciplines such as management, design, and backend development. I've had the pleasure of working with both small and large startups across various sectors like IoT and eCommerce. I can guide you through the entire app development process — from designing UI and code architecture to development, testing, and eventual publishing and support. I place a high value on ownership and transparency, allowing me to maintain long-term relationships with several clients over the years. What drives me is the desire to create something of value, executed using the most efficient resources and technical solutions. Clean, readable code, well-thought-out architecture, and automated tests not only bring me joy but also result in reliable and easily maintainable code for my clients. Feel free to reach out to me. ___________________________________________ ▾ Some technologies I can help you with ▾ ✅ Flutter for iOS and Android: Dart, Flutter SDK, BLoC, Flutter DevTools. ✅ Native iOS, Swift, CocoaPods, Swift UI, AVFoundation, CoreAnimation. ✅ Native Android, Java, Kotlin, Live Data, Coroutines, Dagger 2, Butterknife, Databinding, Retrofit 2, Volley, AndroidX, Picasso, Timber. 🔸 Android & iOS design principles and interface guidelines, UI with animation, custom views, graphics (drawing), Material Design, dark theme, 🔸 SQLite, Realm, Room, Firebase Database, JSON, XML, Pojo, Moshi 🔸 Tests and Test Cases Development, Unit & Integration & Acceptance tests, Manual testing, JUnit, Mockito, Espresso, Appium, CI (TeamCity, Jenkins) 🔸 Purchases & In-app Purchases, Subscriptions 🔸 Background tasks & Services, Sharing, Calendar, Media (music, video), Push Notifications, Off-line mode, In-App Advertising 🔸 Camera, Geo-Location, Geofence, Bluetooth, BLE, GATT, Wifi stack 🔸 Firebase Authentication, Cloud Messaging, Analytics, Crashlytics, Performance 🔸 Google Authentication, Analytics, Maps, Places 🔸 Facebook, Twitter, PayPal, Braintree ✅ Some tools I use to get projects done 🔸 Jira, Trello, and similar 🔸 Git, Github, Bitbucket 🔸 Sentry, Swagger, Firebase 🔸 Figma, InVision, Zeplin 🔸 Xcode, App Code, Android Studio, Makefile, WebStorm, Postman, PosticoPush Notifications
ScrumGitMobile App DevelopmentAndroid App DevelopmentiOS DevelopmentTabletKotlinFlutterFirebaseAndroidSwiftJavaiOS - $40 hourly
- 5.0/5
- (23 jobs)
As a seasoned Flutter developer with a proven track record in delivering top-tier cross-platform mobile applications, I leverage my skills to create smooth, responsive, and visually appealing apps for both iOS and Android. My 8 years of experience encompass: - Integration with REST APIs and third-party services - State management using Provider, Bloc, and Riverpod - Comprehensive Firebase integration (Firestore, Authentication, Cloud Messaging) - Deployment of push notifications and in-app messaging - Payment gateway integrations, including Stripe and PayPal - Location-based app development with Google Maps and Mapbox - Performance optimization and bug resolution I am dedicated to writing clean, maintainable code and commit to timely deliveries. Whether it's building a new app from scratch or enhancing an existing platform, I am ready to collaborate to bring your vision to life. Let’s discuss how we can elevate your project!Push Notifications
Healthcare SoftwareAI ImplementationInternet of ThingsMobile App Development ConsultationMobile AppFlutter StackMobile App DevelopmentAPI IntegrationFirebaseAI PlatformAndroidiOSDartFlutter - $45 hourly
- 5.0/5
- (14 jobs)
- 10+ years of software engineering background (Mobile, Web, Desktop). - 7+ years of experience in iOS development. - 2+ years of experience in Android development. - 2+ years of experience in leading iOS development team. - 20+ successfully delivered projects: dating applications, fintech, video/audio chats, social networks, games, security, banking.Push Notifications
JSONiPad App DevelopmentApple XcodeSmartphoneiOSiOS DevelopmentFirebaseSwiftMobile App DevelopmentObjective-C - $40 hourly
- 5.0/5
- (35 jobs)
🔥 SwiftUI | 🛠️ UIKit | 💵 Subscriptions | 🛜 Firebase | 🤖 OpenAI | 🎥 WebRTC... ...and much, much more! I am a full-stack iOS Developer, meaning I can build both front-end and a back-end based on Firebase functions using JavaScript/TypeScript. I've been developing apps since 2014 (Objective-C 💪). While working in agencies, I've built more than 20 applications - some of which were widely downloaded and generated significant revenue 💰, while others had a more limited audience 🤫. Lately I've been working on my own apps. I know that's implementing app is just about 20% of job, what is more important is to make them visible to the users! I can help you save money by building serverless apps using third-party services like Firebase, RevenueCat, and Analytics platforms. By leveraging these tools, you can avoid the cost and complexity of setting up and maintaining your own servers, and pass those savings on to you. But there is also no problem if you want the application to communicate with your own backend! Among the many published applications, there were such as live video-streaming apps, video-editing apps, custom shirt-making app, e-commerce apps, dating and social networking apps, chats, betting, fitness app that works with wearing accessories (Fitbit, Jawbone), intercom-client app, enterprise apps, for internal usage etc. etc. etc. Are you still uncertain about your app idea? Let's discuss your goals and priorities, and identify any potential challenges or opportunities!Push Notifications
Amazon Web ServicesApple WatchiPad App DevelopmentRESTful ArchitectureiOS SDKCore DataiOS DevelopmentAmplitudeApple XcodeIn-App SubscriptionIn-App PurchasesFirebaseObjective-CSwiftSwiftUI - $50 hourly
- 5.0/5
- (9 jobs)
Greetings! My name is Data. I'm a skilled and reliable native iOS developer for over 6 years now. I care about the architecture of the app, clean code and task prioritization. I responsibly assume the challenges and goals that are assigned to me and solve problems efficiently. My primary goal is to understand what my client needs and find the best possible solution. I do believe that solid, constant communication is the key to a successful project. Please feel free to contact me and have a nice day.Push Notifications
SmartphoneUser AuthenticationIn-App PurchasesMobile App DevelopmentiOS DevelopmentNative App DevelopmentPayment FunctionalityObjective-CSwiftiOSGoogle Maps APICore DataUIKitWebsockets - $50 hourly
- 4.8/5
- (32 jobs)
Hello, my name is Vlad. I have 7 years of mobile applications development experience for iOS and Android using Flutter, Dart, Swift, Objective-C and Java. Also I have worked on Flutter plugins and native iOS libraries, Scala, Go. I am quick learner and I am opened for new technologies. I am interested to work on long term projects and I can be a good team player. Please contact me to schedule a meeting.Push Notifications
FigmaApp Store UploadAndroid AppIn-App SubscriptionWeb DevelopmentPlay FrameworkFlutter StackiOS SDKFirebaseScalaiOS DevelopmentMongoDBFlutterIn-App Purchases - $35 hourly
- 0.0/5
- (0 jobs)
🚀 Senior Android Developer | Kotlin, Java, AR, VPN, CRM, and More! I am a highly skilled Android developer with 5+ years of experience, specializing in Kotlin, Java, and modern Android architectures. I have developed successful mobile applications with millions of downloads, including AR-powered digital fashion apps, VPN clients, taxi services, and bank clients. ✅ What I bring to your project: 🔹 Expertise in Android SDK, Jetpack Components, and MVVM/MVI architecture 🔹 Deep knowledge of Dependency Injection (Dagger, Hilt, Koin) 🔹 Strong experience in networking (REST, Retrofit, WebSockets, VPN protocols) 🔹 Advanced performance optimization and multithreading (Coroutines, RxJava) 🔹 UI/UX best practices, including Jetpack Compose & Material Design 🔹 Experience with Google Maps, Firebase, Google Pay, Bluetooth, and WorkManager 🚀 Notable projects: 🎯 DressX (100K+ downloads) – AR-powered digital fashion app with camera-based try-on 🎯 Free Planet VPN (5M+ downloads) – Fast and secure VPN client, optimized for Android TV 🎯 UTC Driver – Real-time taxi app with WebSocket integration 🎯 Bank auth client –auth face recognition system for bank client 💡 If you need a reliable and experienced Android developer who can build high-quality, scalable, and performance-optimized applications, let’s discuss your project! I’m open to both long-term collaborations and short-term tasks. 📩 Let’s build something amazing together!Push Notifications
Firebase Cloud FirestoreDagger 2JetPackAndroid Room PersistenceMultithreaded ProgrammingRetrofitFirebaseJavaSQLiteAPI IntegrationAndroid SDKAndroid App DevelopmentAndroid StudioKotlin - $20 hourly
- 5.0/5
- (1 job)
Software developer with more than 3 years of experience building high-quality, scalable, and user-friendly iOS applications. Dedicated to work with a good practical basis of frequently used architecture and design patterns, databases and reactive frameworks.Push Notifications
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