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Rating is 4.8 out of 5.
4.8/5
based on 194 client reviews
  • $60 hourly

    • 4.9/5
    • (73 jobs)
    I am a well-rounded software engineering expert with around two decades of experience. As a developer, architect and a consultant I have hundreds of successfully completed projects under my career belt. Software development is what I like and I do it very well. My skillset roughly covers these areas: - software development - applications design and architecture - troubleshooting and bug fixing - operations support - requirements analysis. My major areas of expertise are: - software development for a wide range of platforms, including but not limited to Microsoft ecosystem, Apple devices, web and cross-platform apps and services; - cloud platforms - Azure, CGP, AWS; - data modeling, data warehouses, ETL, data engineering; - Business Intelligence with a strong focus on MS BI (MSSQL, SSIS, ADF, etc) and Power BI; - Office 365 (O365). I can write clear and efficient code in a wide variety of programming and scripting languages. I hold a number of certifications from Microsoft, CompTIA and I am also a PMI-certified professional. I have excellent communication skills and unique cross-discipline experience. I will be glad to help you with your next software project. Feel free to reach out to me to discuss or invite me to your job.
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    Microsoft Visual Studio
    C#
    Business Intelligence
    Microsoft Power BI
    iOS Development
    Troubleshooting
    Microsoft SharePoint Administration
    Microsoft Azure
    Apple Xcode
    React Native
    Microsoft Azure SQL Database
    Software Development
    Root Cause Analysis
    Database Programming
  • $50 hourly

    • 4.9/5
    • (71 jobs)
    🦖 14+ years of experience 📱 Native iOS: Swift | SwiftUI | Objective C 📱 Multiplatform frameworks: Flutter | React Native 🖥️ macOS | watchOS | tvOS 🚀 AI | ChatGPT 🧑🏻‍💻 Python | Javascript | Ruby on Rails 💻 Firebase | AWS
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    Mobile App Development
    React Native
    Flutter
    iOS Development
    Objective-C
    Swift
    SwiftUI
  • $18 hourly

    • 4.9/5
    • (72 jobs)
    ✅ Top Rated Upwork Engineer ✅ 100% Job Success ✅ I love developing apps Skills

: ✅ iOS development ✅ MVVM development ✅ MVP & Prototyping Thank you for visiting my profile. Hi Upworkers, I will help you to build your iOS app from scratch or help with some refactoring or feature improvement. My experience includes: - 8+ years of experience with iOS platform - experience in object-oriented software architecture, design and programming, design patterns - good understanding of the internals of iOS - testing of iOS applications including writing Unit tests - experience in Multithreading, Networking - excellent written and verbal communication skills - ability to perform in a fast-paced agile environment and work both as a tech lead, a team member, and independently Technical skills: **Programming languages: Swift | SwiftUI |Objective-C | Flutter | React Native **Apple Frameworks: CoreData, Core Location, MapKit, Quartz, Core Graphics, Core Animation, Core Location, UIKit (Cocoa Touch), AVFoundation, Core Text, SpriteKit, AudioToolbox, AVKit, Audio Kit, AdSupport, iAd, CoreImage, MediaPlayer, AddressBook, MessageUI, Photos, SafariServices, NetworkExtension, Twitter, Social, SystemConfiguration, XCTest, XCUITest **External Services: CocoaPods, ObjectMapper, Realm, SDWebImage, Facebook SDK, Fabric, Stripe, Braintree, PayPal, Socket.io, Firebase **IDEs/Development Tools: Xcode **Databases: Realm, CoreData, SQLite, SQL **Source Control Systems: Git **Task tracking: Redmine, JIRA, Teamwork, Trello Please write me and let's work together!
    vsuc_fltilesrefresh_TrophyIcon watchOS
    AR & VR
    RESTful API
    SwiftyJSON
    Apple Watch
    Apple Xcode
    Firebase
    Mobile App Development
    GraphQL
    UIKit
    ARKit
    WatchKit
    iOS Development
    Objective-C
    Swift
  • $25 hourly

    • 5.0/5
    • (104 jobs)
    As a highly experienced and top-rated plus mobile app developer (Top 3% on Upwork), I offer exceptional services to startups, established businesses, and individuals seeking MVP OR Mobile app development. With a proven track record of 100% job success and 90+ projects completed successfully, I am committed to delivering high-quality, affordable solutions for web and mobile app development. Technologies: ✅ Android: Kotlin, Java ✅ iOS: Swift, Objective-C ✅ Cross-Platform (Hybrid): Flutter (Dart), React Native ✅ Web / Backend: PHP, Node.js, Python, Laravel, WordPress, Express.js, Nest js ✅ Frontend: React.Js, HTML5, CSS3, BootStrap, JavaScript, jQuery Benefits of Working with Me: ✅ Strong technical expertise and industry knowledge ✅ Commitment to quality and client satisfaction ✅ Competitive pricing and flexible payment options ✅ Timely delivery and efficient communication ✅ Free consultation to discuss your project and vision Skills and Expertise (App Development): ✅ Mobile App Development: Android & iOS Mobile app development, and Backend Architecture ✅ Backend: Firebase, Rest API, Soap, Web Sockets ✅ Databases: SQLite, MySQL, MongoDB, Realm ✅ Social Integration: Facebook, Google, Twitter, Instagram ✅ Chat: Socket, Firebase, GetStream, Twilio, Agora ✅ Version Control: Github, Bitbucket, Gitlab, Azure ✅ Maps & Location: Mapbox, Google Maps, Apple Map kit, Geolocation ✅ Broadcast & Livestream: Agora, Twillio, Wowza Cloud ✅ Subscription & Payments: Paypal, Stripe, Peach Payment, My Fatoorah, In-app purchases, Hyperpay ✅ Scan: QR Codes, Bar Codes, NFC Tags Reading ✅ Editing: Photo & Video Sharing, Editor, Filters ✅ AI & ML: Augmented Reality (AR), Internet Of Things (IoT), Beacon, Machine Learning ✅ Othesr: Advertisements, Push Notifications, GCM, Google Analytics, Cloud Messaging, In-app messaging, Crashlytics, App distribution and many more. Call to Action: I invite you to schedule a free consultation today to explore how my services can help you achieve your mobile app development goals. Let's work together to create a successful and impactful solution for your business.
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    Web Application Development
    API Development
    AI App Development
    App Development
    Swift
    Flutter
    AI Mobile App Development
    iOS Development
    Hybrid App Development
    Kotlin
    Android App Development
    AngularJS
    React
    Mobile App Development
  • $15 hourly

    • 4.8/5
    • (146 jobs)
    Top-Rated Developer | 5-Star Feedback | 100% Client Recommendation | 100% Job Success Hello! I’m Naresh, a passionate developer with over a decade of experience in creating innovative mobile and web applications. Specializing in iPhone, Android, and cross-platform apps using React Native and Flutter, as well as robust web applications built with PHP and Node.js, I lead a dedicated team of industry experts committed to bringing your ideas to life with precision and care. What I Offer: 10+ Years of Expertise: Leveraging extensive experience to deliver high-quality mobile and web solutions. Full-Cycle Project Management: Guiding your project from initial design through to app store launch. Client-Centric Approach: Dedicated to understanding your needs and exceeding your expectations, as reflected in my 100% job success rate. My Skills & Team's Expertise: Mobile Development: iOS, Android, React Native, Flutter Web Development: ReactJs, Angular, PHP, Node.js Project Management: Comprehensive oversight from concept to deployment Together with my team of skilled professionals, I pride myself on a client-centric approach, always striving to understand and meet your unique needs. Your satisfaction is our priority, and we are committed to delivering solutions that not only meet but exceed your expectations. Let's work together to turn your vision into reality with cutting-edge technology and dedicated project execution. . Why should you consider me for your project? ✔ A team of experienced designers, programmers and testers who are proven veterans ✔ 10+ years of unblemished track record in partnering clients across USA, Australia, UK, and India ✔ Quality work + quick turnaround time + tight budgets ✔ Customized, personalized, tailor-made solutions for client specific business needs ✔ Focus on client specific ROI objectives & metrics Technology Services: ✔ Mobile Application Development ✔ Web Application Development ✔ Ui & Ux design ✔ IT Consulting ✔ Project management / Agile methodologies ✔ Quality Assurance/Testing and Support Solutions delivered: Core skills & Technologies: ✔ Interaction with backend - Restful / JSON / XML / PHP ✔ Databases / Data Management - MongoDDb, SQLite / MySQL ✔ Social Integration - Facebook / Twitter / Google+ / YouTube / Instagram ✔ Chat - React time chat, socket.io, Firestore, XMPP / Quickblox ✔ Version Control Tools - Github / SVN ✔ Google Maps / Apple Map kit / Geolocation / GPS / Location Tracking ✔ Audio / Video Live Streaming ✔ Parse / Firebase ✔ Paypal / Braintree / Stripe Payment Gateway, Any payment gateways ✔ QR Codes, Bar Codes, VIN Scanner, NFC Tags Reading ✔ In-App Purchase / Advertisement / Push Notifications / GCM / Google Analytics ✔ Photo & Video Sharing / Editor / Filter Key Benefits of choosing us as your preferred vendor in application development: - Domain knowledge, Expertise, Reliability and Work Ethics. - Full Stack Development support. - Available over Phone/Skype/Emails. With over 250+ apps to our credit, our customers simply love working with us! We’ve helped change the face of business and improve the digital footprints of over 200+ happy clients and we have established a global presence with our success stories. Feel free to invite me if you need help bringing your ideas to life.
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    Android SDK
    Web Development
    Node.js
    iOS Development
    React Native
    Mobile App Development
    PHP
    GPS
    Android App Development
    AngularJS
  • $60 hourly

    • 4.4/5
    • (18 jobs)
    Blockchain Developer & Mobile App Expert With over five years of experience, I specialize in blockchain technology and mobile app development. I excel in designing and deploying decentralized applications (dApps) and creating intuitive, user-friendly mobile apps. My skills include smart contract development, API integration, and cross-platform mobile frameworks. I deliver high-quality, secure, and scalable solutions that drive business growth. Here's the list of the services that I offer, Blockchain Expertise: I specialize in: - Cryptocurrency Wallets - Extensive experience with EVM Chains ( ETH, POLYGON, BSC), XRP Chain, Bitcoin Chain - Non-Custodial Wallets - NFT Minting Engines - Smart Contracts - NFT Websites - DeFi Solutions - dApp Development - NFT Marketplace Management Mobile and Web App Development Skills: In mobile app development, I have expertise in: - Flutter/Dart - React Native - AI Apps and Integration - State management (BLOC , Provider, Redux) - Firebase (including FCM, Auth, Database) - Full Stack Development - iOS and Android Apps - REST APIs - In-app Purchases - React (for frontend web) - Node.js (for backend) - Version Control (GitHub/Bitbucket) - App Store, Play Store - Google/Facebook Ads - Figma/XD (wireframes & components) - Product Design I prioritize clear communication and high availability. Let's bring your blockchain and app ideas to life!
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    web3.js
    Ethereum
    Smart Contract
    Blockchain Platform
    Crypto Wallet
    NFT Marketplace
    Crypto Wallet Development
    Blockchain Development
    Solidity
    Blockchain
    Flutter
    React Native
    Full-Stack Development
    React
    Mobile App Development
  • $50 hourly

    • 4.9/5
    • (83 jobs)
    I am an expert-vetted software engineer and outsourcing consultant with 10 years of experience in mobile apps, Web development, and outsourcing services. I have worked with many startups and leading development agencies across the globe to build great mobile apps and Websites for them. Past Achievements: - Successfully set up outsourcing/back-office operations for Australian-based public listed companies. - Built an award-winning Mobile App for Bible readers. Expertise: ✅Mobile Development: - iOS (Swift/Objective-C) - Android (Kotlin/Java/Android SDK) - React Native - Flutter ✅ Web Development: - MEAN Stack / MERN Stack - ReactJS - PHP ✅E-commerce Development: - Magento - Shopify - BigCommerce ✅ Content Management Systems (CMS): - WordPress ✅Immersive Technologies: - Virtual reality - Augmented Reality Project Management & Specialized Skills: - Business Process Automation & Integration: Streamline workflows and connect applications to enhance efficiency. - Full-Stack Web Development: Build custom web applications from the user interface to the backend. - Responsive Web Design (RWD): Design websites that adapt seamlessly to any device (desktop, tablet, mobile). - Project Management: Effectively manage projects using Agile Scrum methodology (team lead experience). I'm your go-to person to bring your tech dreams to life! Tags: Mobile Development | Web Development | E-commerce Development | Content Management Systems (CMS) | AR/VR Development | Project Management | Agile Scrum | Upwork | Freelancer | Mobile App Development | Web App Development | Full-Stack Development | Responsive Web Design | UI/UX Design | API Integration | Business Process Automation | Cloud Platforms (AWS, Azure, GCP) | Version Control (Git, SVN) | PHP | ReactJS | React Native | Flutter | MEAN Stack | MERN Stack | Magento | Shopify | BigCommerce | WordPress | iOS Development (Swift/Objective-C) | Android Development (Java/Kotlin)
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    AR & VR
    Ecommerce Website
    WooCommerce
    Shopify
    Full-Stack Development
    Magento
    WordPress
    Mobile App Development
    iOS Development
    Android App Development
    Swift
    Kotlin
    React Native
    React
    Flutter
  • $28 hourly

    • 5.0/5
    • (31 jobs)
    "Junaid is Excellent to work with. Always on time, keeps communication to make sure everything is done correctly the first time. It has been an excellent opportunity to work with him." Ready to take your mobile app to the next level? Let's make it happen! Tap 'invite' for a FREE 30-minute consultation and let's transform your app idea into a digital success story together. What you'll gain from partnering with me: -Have an exciting app idea? I'm your development partner ready to bring it to life. -Facing business challenges? Let's automate and streamline your processes. What I offer: -End-to-end app development from wireframes to App Store launch (iPhone/iPad/Android) -Proficiency in Kotlin, Swift, and Objective-C -Expertise in UX/UI design and project management -App upgrades and maintenance Why choose me? With 23 successful projects delivered to satisfied clients, a 5-star rating, and over 8 years of experience, I bring a proven track record to the table. Ready to embark on an innovation journey? Let's connect and turn your dream idea into reality!
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    Artificial Intelligence
    Git
    Mobile App Design
    Android SDK
    iOS Development
    Mobile App Development
    Android App Development
    Java
    Objective-C
    Kotlin
    Swift
    React
    Firebase
    Dart
    Flutter
  • $39 hourly

    • 4.7/5
    • (68 jobs)
    I have worked on iOS, Android, Web apps for tech giants like AT&T, Verizon, Univision, NBC, MySpace, Letsintern, AMCAT & more. HIGHLIGHT - I also completed 5 SUCCESSFUL projects with 'Government Of India' & 'European Union'. Areas of Specialization : - iOS/Apple Mobile Application Development - Swift & Objective C - Android/Google Mobile Application Development - Java & Kotlin - Android & iOS apps using Flutter - Android & iOS apps using React Native - iOS/Android Cross Platform Multiplayer Game Development - Unity - RESTful API Development (Web-services) - PHP, Node.js, Python - Front end/UI Development - React.js, Angular, HTML, CSS, Bootstrap, Javascript - IOT based apps - SDK/Plugin development Third party frameworks - Social Media Integration: Facebook, Twitter, LinkedIn, Google+, Youtube - Cloud Backend: Firebase, Parse.com, Amazon S3 - Bluetooth LowEnergy(BLE), iBeacon, NFC - Billing/Payment - Stripe, Apple pay, Google pay & other payment gateways - Location : Google Maps, Apple maps Foursquare, Geolocation, GPS, Geofencing, Open Street Maps - Notifications : AWS SNS, Onesignal, Pushcrew, etc - Analytics : Firebase, Google Analytics, Fabric - Storage : CoreData, Sqlite, Rooms, Realm, - Code versioning - Github, Bitbucket
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    Web Development
    Git
    UI/UX Prototyping
    Web Application
    Laravel
    Mobile App Development
    iOS Development
    Android App Development
    Angular
    React
    React Native
    Android Studio
    PHP
    Node.js
    Flutter
  • $30 hourly

    • 4.9/5
    • (69 jobs)
    🏆 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫 ✅ 𝟏𝟎𝟎% 𝐣𝐨𝐛 𝐬𝐮𝐜𝐜𝐞𝐬𝐬 𝐫𝐚𝐭𝐞 👨‍💻 𝐓𝐨𝐭𝐚𝐥 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐡𝐨𝐮𝐫𝐬 𝟕𝟎𝟎𝟎+  💰 𝐃𝐨𝐥𝐥𝐚𝐫 𝐒𝐢𝐠𝐧 𝐇𝐚𝐯𝐞 𝐞𝐚𝐫𝐧𝐞𝐝 𝟐𝟎𝟎𝐤+ My core competency is iOS mobile app development. I create elegant and efficient applications for iOS, iPadOS, macOS and watchOS, using the latest technologies and SDK versions while ensuring compatibility with older iOS versions and devices. With over 𝟏𝟏+ 𝐲𝐞𝐚𝐫𝐬 of flawless experience in iOS development, I embarked on my freelance journey in 𝟐𝟎𝟏𝟓". Before this, I worked with various organizations, gaining hands-on expertise in Swift, SwiftUI, RxSwift, Objective-C, Xcode, and Apple’s UIKit. I have a solid background in the analysis, design, development, and implementation of apps, particularly for the App Store. I excel both independently and as part of a team, following AGILE methodologies. I am a collaborative team player, skilled at working with product managers and developers to create and refine Jira Stories. I have worked with global teams, contributing to numerous enterprise-level apps with millions of users. 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐭𝐲 𝐢𝐧 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬: * Swift, SwiftUI, RxSwift, Objective-C, XCode, Apple’s UIKit * Apple Watch * CoreData, Firebase, Amazon services * Integrating Web Services * MVC/MVVM/MVP architectures * Maps and Locations for iOS: Apple Maps experience with MapKit, MapBox, Core Graphics * In-app purchases, Payment methods (Stripe, PayTabs, Paypal, ApplePay, Google Pay) * Push Notifications * Database Management * File-handling * Data Synchronisation * App Monetisation * App Localisation * Git and Bitbucket versioning Control 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐭𝐲𝐩𝐞𝐬 𝐨𝐟 𝐢𝐎𝐒 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬: Food delivery App, On-demand Mobile App, Ride Instructor Booking App, Real Estate Listing App, Social Media Mobile App, Task Management App (like To-Do), Investors Management App, Sports Mobile App, E-commerce Mobile App, Event Management Mobile App, Grocery Mobile App, Freelance Marketplace App, Home Service Booking App, Inventory Management App, Learning Management Mobile App, Appointment Booking App, Venue Booking Mobile App. I am eager to explore long-term opportunities, whether to take charge of a project individually or to join a dynamic team. I am passionate about bringing innovative ideas to life and contributing to groundbreaking products. #iOS, #iOSApp, #iOSAppDevelopment, #iOSDeveloper, #Swift, #SwiftUi, #ObjectiveC, #SwiftDeveloper, #Apple, #iPhoneApp, #AppStore, #AppDevelopment, #MobileApp, #MobileAppDevelopment, #Xcode, #AppDesign, #Tech, #Coding, and #Programming.
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    Mobile App
    iPhone & iPad Apps
    iOS Development
    SaaS Development
    Health & Fitness
    SwiftUI
    Native App
    RxSwift
    Apple Xcode
    iOS SDK
    Swift
    Mobile App Development
    Objective-C
    Firebase
    Native App Development
  • $20 hourly

    • 4.9/5
    • (70 jobs)
    Passionate software developer, team lead. I go deep into the subject area and carefully listen to you to create really what you want and need. I have worked on various mobile and web applications. I have built mobile applications in React Native (Hybrid apps). I am also experienced in creating SaaS applications from scratch using the Laravel framework. I was part of the creation from the ground up of small and big projects alike, from presentation websites to a network of real-estate websites with build-in administration. I was also responsible for the maintenance and building of new features for existing websites. Experience in Trello, JIRA, Asana, BitBuket, Springloops and BaseCamp for project management.
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    Node.js
    Redux Saga
    Angular 10
    Redux
    React
    PHP
    React Native
    JavaScript
    Android
    iOS
    Laravel
  • $25 hourly

    • 5.0/5
    • (485 jobs)
    I have specialized and core expertise to work in web and mobile applications in a variety of industries, ranging from startups to enterprises. I got my start working as a developer to work . Since then, I have progressed to building and working with large, highly-customized and integrated platforms, becoming an expert in full-stack development. I have also had the opportunity to work extensively with many other frameworks and API's. I excel at meeting goals, making deadlines and consistently challenging myself to learn new things. I am both detail and goal oriented and thrive in a fast-paced environment. My technology summaries are as follows: ✔ Front-end Skills: React.JS, Angular.JS, Vue.JS , Javascript/jQuery, HTML5, CSS3, Bootstrap, ✔ Back-end Skills: PHP (Laravel, CakePHP, Yii 1.x&2, Codeigniter, Zend, Symfony, Wordpress, ROR), Node.JS/Express.JS, Python(Django) ✔ Database Development, Utilization, Optimization and Administration (MySQL, MSSQL, MongoDB, PostgreSQL, Oracle ... ) ✔ Hybrid Mobile application: Ionic, React-native, Flutter, Cordova, PhoneGap, iOS development, Android development. ✔ Other skills: API Development (Social Networking, Payment Gateway, Marketing), OCR, Motion tracking, Logo detection, Vehicle counting and so on) Firebase, AWS, Heroku, Desktop Application Development using C, C++, C#, Java Let’s work together!
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    WordPress
    Angular 5
    Front-End Development
    Progressive Web App
    Redux
    Vue.js
    Laravel
    Swift
    Flutter
    React Native
    Java
    Ionic Framework
    Mobile App Development
    Node.js
    PHP
  • $25 hourly

    • 4.3/5
    • (55 jobs)
    Over the last 10 years i started been doing software development for different multi-nationals like Elixir, Bantlay etc. And then moved towards full-time freelancing for the last 7 years now, i have doing freelancing on different forums like odesk, Elance both of which are now Upwork and have my full ratings and projects summary on this profile. In total i have more than 50 ratings of doing different projects of web development, desktop applications development and mainly Mobile Application development. The main fields i have worked in and have related ratings are: Web development: I have been doing website development full responsive with front-end and back-end both involved, Web application with third part libraries integrated and also intefacing mobile apps with them. I have been using technologies like Php, Mysql and now mainly Javascript platforms such as Node.Js and Angular.js Mobile development: has always been my major skill set and the filed i got the most and main expeience in. I started with Native application development for Android and IOS using Eclipse and Objective-C then moved to Studio and Swift and now Kotlin for Android. I also do cross-platform application development using the tools like React Native, Flutter and Titanium appcelerator.
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    HTML
    .NET Framework
    Appcelerator Titanium
    C#
    Firebase
    React Native
    Objective-C
    Swift
    JavaScript
    C++
    Java
    Kotlin
    Android App Development
    MySQL
  • $35 hourly

    • 4.9/5
    • (16 jobs)
    Developing iOS apps for too many years. Still love each OS release and looking forward what they have to come out with next time! Apple fan, how not surprising this may be. iOS skills include but not limited to: - Swift 5 / Objective-C - iOS SDK, Xcode - UI: UIKit, WatchKit, SwiftUI - Design Patterns: MVC+C, MVP+R, MVVM+C, VIPER, Clean Swift, Modular Clean Architecture - Reactive Frameworks: Combine, RXSwift - Dependency Managers: Cocoapods, SwiftPackageManager, Carthage - Dependency Injection: Swinject, Custom DI - Network: REST API, GraphQL, Alamofire, Moya, SwiftWebSocket, SocketIO, URLSession - Integration with existing social networks: Facebook, Twitter, Google - Media: AVFoundation, AVKit - Animations: UIKit, CoreAnimation, Lottie - Image Processing: CoreImage, CoreGraphics - Payment systems: In App Purchases, Apple Pay, Stripe, Square, PayPal, Liqpay, Swish - Databases: SQLite, CoreData, Realm, CloudKit - Multithreading: GCD, Swift Concurrency - BLE 4.0, 5.0 - CI/CD: Fastlane, AppCenter, GitLab, GitHub - Calendars: Google, Apple, CalendarKit - Notifications: UserNotifications, Firebase Cloud Messaging, OneSignal - Code generation: Swiftgen, Apollo - Version Control System: GitHub, GitLab, Bitbucket - Design resources: Zeplin, Figma - Task managers: Jira, Zenhub, Trello - Apple account: App Provisioning, AppStore Connect - Mobile advertisement: AdMob, IronSource, Unity, AppLovin - Other OS: watchOS, tvOS - Other services and SDKs: Firebase, AppCenter, Braintree, Branch, Maps (MapBox, Google, Apple), Mobile Bank ID, Google Analytics, Crashlytics, Test Flight etc. iOS apps (iPhone, iPad) apps (phone and tablet) of any complexity or style (material style, flat style): - delivery and ordering systems related applications - logistics mobile applications - marketplace apps - video and chat applications, WebRTC / VoIP, socket connection - booking mobile apps - online TV applications - educational applications - fitness applications - medicine applications - health applications - applications for online stores - cleaning services - and whatever you want - you tell it - I do it
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    iPad App Development
    App Development
    iOS SDK
    Core Data
    iOS Development
    Mobile App Development
    Swift
    Objective-C
  • $12 hourly

    • 4.6/5
    • (135 jobs)
    ****TOP RATED DEVELOPER SINCE 2016 ON UPWORK**** * Lead iOS and Android Application Developer with over a decade of experience possessing top-notch development skills and a systems-level approach to software. * Design, develop, maintain, and test software written for iOs and Android; work independently and also with the teams to analyze user needs and develop mobile solutions to optimize operational efficiency. * Consistently expands knowledge about new technologies—deep expertise in SWIFT, SWIFTUI, Objective-C, Kotlin, and JAVA. * Thrives on a challenge and works well under pressure, with technical expertise to learn new environments quickly, write codes, support the entire application lifecycle (concept, design, test, release, and support), and provide quick solutions with project management skills that drive a quality software development process forward. I am a patient, thorough person with close attention to detail. I can provide consulting, software development, testing/debugging, and other services ranging from a short couple of hours job , to full-time everyday work long-term cooperation and support. Feel free to review my profile, or ask any queries. My Skill Set: 1) Objective-C and SWIFT 2) Java 3) Xcode/iOS SDK 4) Android Studio/Android SDK 5) MySQL 6) AWS Why should you hire me? A full-stack developer with 12 years of experience coding apps from scratch. Apps from business solutions to dating to Video broadcasting and appointment booking apps. Providing free after-launch maintenance. Not an agency, a direct stand-alone freelancer in contact, providing genuinely lowest budget as compared to agencies. Thanks for giving your precious time to my profile 🙏. In case you need my help or want to discuss anything- Send a message, I am available, and it's free 😁
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    Web Design
    Web Development
    iPad App Development
    iOS Development
    Mobile App Development
    Android App Development
    Apple Xcode
    Smartphone
    QR & Barcode Scanner
  • $100 hourly

    • 4.5/5
    • (313 jobs)
    ** Ranked in Top 100 Developers in the world! ** Rated as Top 1% in Upwork Tests - In-depth knowledge of Yii, Flutter, Kotlin, PHP, SWIFT, and React JS. - Global experience in AI services, Automation, and Machine learning, chatbots, OpenCV, FreePBX 1) Mobile App development * iOS (Swift/ Objective-C) * Android (Java/ Kotlin) * Hybrid (Flutter/ React) 2) Website development * Web Yii , Laravel * Python, Nodejs 3) Cloud computing * AWS , S3, Azure * Google cloud platforms * Heroku * Firebase 4) Database Management * MySQL * MongoDB PostgreSQL 5) FreePBX * VOIP/SIP 6) Others: Rust , OpenCV, RASA, Chatbot, Tensorflow, Top Business Category that we have worked for: • Internet of Things (IoT) websites and apps • Medical and Health websites and apps • CRM/ERP solutions • Taxi Booking/Ride-Sharing websites and apps • Food Ordering apps • Social Media apps and websites • Real Estate, Marketplace website, and apps • E-commerce websites and apps • On-Demand Education websites and apps • Event Booking websites and apps • Classified websites and apps • Chat Web and Mobile Applications • Logistics and Transport Applications • Documentation / Prototyping/QA plus submission on Google and Apple store Currently, I am leading a team of 300+ developers. If it sounds interesting to you, let's connect and discuss your project requirements in detail!
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    Agile Project Management
    Alexa Skills Kit
    Django
    phpMyAdmin
    Yii2
    ChatGPT
    Laravel
    Node.js
    Angular
    React Native
    Android App Development
    Flutter
    MongoDB
    Python
    PHP
  • $25 hourly

    • 4.2/5
    • (79 jobs)
    I have ample experience with blockchain as a backend and front-end designer and have broad and robust involvement with the plan and improvement of big business and fin-tech frameworks. I've rich experience with DeFi lending protocols that power many of today’s yield farming ventures and are considered a relatively safe and tested way to make extra income on crypto-assets. My experience includes crypto exchanges, Dapps, Solidity & Ethereum, as well. API : inrura.io, binance.com,poloniex.com, bitfinex.com,coinbase.com, kraken.com, cex.io, coinmarketcap.com, uniswap.org, aave.com The crypto exchanges, blockchain forks, tokens creation (ERC-20, ERC-721 NFT BSC), Forking, intelligent contracts, DeFi and Ethereum mass payment tools with low gas consumption, NFT Platform , Defi/dapp Development. Have also worked on FLOW/ WAX Blockchain network and created various NFT platforms which include decentralisation network setup, smart chain. - NFT marketplace Development - Crypto wallet development - Defi/Dapp Development, Smart contract, Ethereum ERC721, ERC1155 - Cryptocurrencies API: all kinds of BCT and ETH, LTH ... - Bitcoin-QT - Wallets API: Trezor, Ledger Nano S (ETH) ... - Exchanges: Cexio, BitMex, Bittrex ... - Integrated with BSC , Ethereum and other network setup - DeFi Consulting (swaps, liquidity pools, borrowing and lending, yield farming, impermanent loss, governance tokens) - AMM DEXs (Liquidity, PancakeSwap, Uniswap, Curve, Balancer, SushiSwap, etc) - NFTs (ERC-721, ERC-1155, Flow, BSC, Polygon, Rarible, Opensea, Nifty, etc) - SSI and identity solutions, attestation and verification - Exchanges, mining - Marketplaces and ecosystems - Token standards (ERC, BEP) The segment have worked and developed 1) Worked with Mobile app development where integrate with different Blockchain Network 2) Integrated with BSC , Ethereum and other network setup 3) Wallet creation and crypto coin Management 4) NFT management on mobile app 5) Blockchain transaction management 6) Fin-tech Management and trading apps - DeFi Consulting (swaps, liquidity pools, borrowing and lending, yield farming, impermanent loss, governance tokens) - AMM DEXs (Liquidity, PancakeSwap, Uniswap, Curve, Balancer, SushiSwap, etc) - NFTs (ERC-721, ERC-1155, Flow, BSC, Polygon, Rarible, Opensea, Nifty, etc) - SSI and identity solutions, attestation and verification - Exchanges, mining - Marketplaces and ecosystems - Token standards (ERC, BEP) My Blockchain Skills include: ====================== - Smart Contract Development - Smart Contract Audit, - ICO and Token Implementation, - ERC20 and ERC721 Token Standards, - Smart Contract Consulting, - General Smart Contract Implementation, - Consulting in the area of Ethereum Blockchain, - Project and Product Management. I have a broad skill set ranging from full-stack development and distributed computing to blockchain technologies with extensive experience in Java and Node.js ecosystem. TECH STACK : Language: MEAN | MERN | Solidity | Python | Golang | Javascript | Php | Go Blockchain: Web3, Solidity, Infura, Truffle, BTC, ETH, Hyperleadger Wallets & Clients MEW, Geth, Parity, Mist, Metamask, Ganache Hands-on experience in Java/C++/Node/Golang. Application development and systems implementation. Blockchain research, understanding and solution development. Experience in NodeJS, GIT repositories, open-source tools & Technologies. Excellent understanding of Blockchain technology, cryptocurrencies (BTC, ETH, TRON, EOS & others), various consensus protocols. Experience in development on one of the Blockchain platforms like Hyperledger, Ethereum, R3 Corda, Ripple, Bluemix, Rubix. Experienced in the development of applications using distributed applications framework like Meteor, Multichain, etc. Basic understanding of cryptography, symmetric/asymmetric (public/private key), hash functions, encryption/signatures. Area of Expert : P2P Trading [LBC Concept] P2P Lending Centralized Trading & Exchange DEX -ETH & EOS Protocol DAPP Development DAPP Games Development [TRON, EOS, ETH Network] Tokenization Platform development ICO/IEO/STO End to End development Whitepaper Consultation Cryptocurrency Development IPFS Application development
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    Crypto Wallet Development
    DApps
    DevOps
    React Native
    iOS
    web3.js
    Blockchain
    Smart Contract
    Blockchain Platform
    Solidity
    DApp Development
    Cryptocurrency
    Blockchain Architecture
    Metaverse
  • $20 hourly

    • 4.8/5
    • (29 jobs)
    My skills: Native iOS, Native Android, Flutter, React Native,Ionic, Cordova, Python, ChatGPT/LLM/NLP I provide: • Excellent software architecture skills, with the ability to develop well-structured code. • Experience integrating with third-party libraries and APIs. • Good comprehension of UI/UX, including Android Material and iOS Design guidelines. • Solid understanding of the mobile development life cycle. • Proven track record of publishing apps to App Stores. • Expertise in using mathematics, statistics, and cutting-edge approaches to create models that collect data, analyse it, and offer actionable insights for our clients' businesses, allowing them to make better decisions. Core Strength Areas: -- IOS/ iPhone App Development - Swift 5 and Objective-C, -- Android App Development: Core Java, and Kotlin -- Cross-Platform App Development: Flutter, React Native - Redux, EcmaScript ( ES6 and ES5), Cordova, Relay. -- Wireframing: Invision, Balsamiq, Marvel, and Mockingbot -- Database Management: RealM/PostgreSQL/MySQL/SQLite -- Amazon web services, Firebase, GCP --Proficiency in programming languages commonly used in AI/ML, such as Python, R, and libraries like TensorFlow, PyTorch, scikit-learn, etc. FinTech Experience : Coming to experience in the Fintech domain, here are a few core areas we work in Money remittance system, stock trading platform - ETF and Crypto, Robo-advisory / Spare change investment platform, mortgage Planning system with the use of Financial Aggregator services, funds Management and wallet system/ banking API implementation, etc.  Experience in various banking APIs ranging from : -- Authentication of the user account with Bank account Using Plaid or True Layer -- Integration with Money Transfer APIs like grey systems, Dwolla, Tellero, and OpenBank -- Hyperledger to store transaction data/log files and enforce the contracts and in TRON we use TRX10-based Tokens -- Investment API for stocks (Interactive broker and independent reserve) and crypto as well as integrating exchanges like (Binance, Poloniex, Gemini, and Bittrex) AIML Experience: Bots (using Google Dialog Flow, Watson Assistant, RASA, AWS Lex) -- Predictive Algorithm (e.g. Stock Market prediction) -- Natural Language Processing (e.g. sentiment analysis) -- Deep Learning (e.g. emotion detection) -- Data Extraction (e.g. text extraction from EHRs) -- Machine Learning (e.g. customer churning) -- Computer Vision (e.g. Facial Recognition, Object Detection and Recognition) -- Data Visualisation (using Tableau, PowerBI, Matplotlib libra BLE and WiFi Experience : Experience in integrating IoT & BLE Protocol devices following high-level ACE 128-bit encryption & OAuth2 in different industries like health and wellness by integrating iWatch for session tracking and notification purpose. -- BLE and WIFI enabled OBD 2 Device -- BLE and WIFI Printers integration via SDKs and API -- IoT Devices with BLE support -- Encryption and Decryption using PKI Key -- Fitness band integration - smartwatch Live streaming, Chat/Messaging Expert: -- Experience in Live streaming integration using OpenLive SDK and Agora.io and many more. -- Experience in developing chat/messaging-based platforms ranging from XMPP to Rocket chat, Socket.io, Jitsi, Signal R, and integrating the third party like Firebase/Twilio and quickblox -- Encryption and Decryption techniques for the secure messaging platform -- Handle Large User databases with offline features and online syncing behavior Latest : -- COVID Vaccination booking, certificate tracking, available slots -- COVID-19 tracking App using BLE and real-time tracking of quarantine patients. -- COVID-19 prescreening/Symptom checker -- Telehealth portal: Video conferencing using tools like Zoom, Vidyo.IO We work with the latest mobile programming languages like React Native/Flutter/Cordova for cross-platform applications AND SWIFT or Kotlin/Java for Android with strong experience with Xcode/Android studio and its toolchains following the MVC/MVVM-based apps architecture. We follow the latest libraries/components like View binding, runtime permissions (Location permissions), build type (for Flavouring) provided by the developer community.
 --Machine Learning: Baysian, Gaussian processes, PyTorch, Scikit, Tensorflow, regression models, SVC, SVM, classifier models, deep learning with neural networks (R-CNN, Mask-RCNN, SSD, YOLO), NumPy, Pandas -- Computer Vision: OpenCV -- NLP: NLTK, Spacy, Baysian, NER, BERT, GPT3 (prompt engine davinci-instruct-beta and davinci), Context Analysis, Theme Analysi
    vsuc_fltilesrefresh_TrophyIcon watchOS
    MongoDB
    Mongoose
    CMS Framework
    Python
    Django
    Node.js
    Chatbot
    AI Chatbot
    Chat & Messaging Software
    API Integration
    React Native
    Kotlin
    Mobile App Development
    Flutter
    iOS Development
  • $25 hourly

    • 5.0/5
    • (37 jobs)
    I am a professional developer with a bachelor’s degree in Computer Science engineering and extensive experience in crafting robust mobile apps and websites. I have developed more than thirty iOS and Android applications designed for iPhones, iPads, Android phones and tablets and successfully executed numerous updates to existing applications for a variety of small to mid-size companies. I have experience of developing and maintaining bespoke websites for many of my clients which includes redevelopments, re-platforming or the creation of new web applications that meet a specific need of the client's business model. My experience ranges from building intuitive and robust social media apps to building scalable apps for the human service industry. I have built numerous production-grade web apps that include basic websites as well as complex data processing pipelines that work well cross-browser and are mobile responsive. Over the past few years I have worked on the following technologies: ✔ Swift and Objective-C for iOS and macOS app development ✔ Java and Kotlin for Android app development ✔ Flutter, Xamarin and React Native for hybrid app development ✔ ASP.NET MVC, .NET Core, PHP (WordPress, Laravel, CodeIgniter, etc.) for website backend development ✔ Angular 2+, HTML5, jQuery, JavaScript, CSS for website frontend development ✔ Database: MySQL, NoSQL, MSSQL, PostgreSQL I've worked with a wide range of technologies and will help you choose the one that best suits your needs and provides a highly customised, scalable and integrated solution. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. Thanks for going through my profile. Looking forward to hear from you!
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Apple Watch
    AngularJS
    Microsoft SQL Server
    Xamarin
    Firebase
    C#
    macOS
    PHP
    NoSQL Database
    ASP.NET
    iOS Development
    iPadOS
    Mac OS App Development
    MySQL Programming
    Objective-C
    Swift
    Android App Development
  • $60 hourly

    • 5.0/5
    • (25 jobs)
    I am a Senior Apple Developer located in Belgium, with a background in architecture, manufacturing, machining and programming, proficient in Swift, Objective-C, Python, C++,  iOS, iPadOS, macOS, watchOS, tvOS, visionOS, UX/UI-design, OpenAI and Machine Learning.
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    iOS Development
    Apple Xcode
    iOS
    Apple Watch Application
    iPadOS
    Mac OS App Development
    Objective-C
    iPad App Development
    Swift
    GitHub
    Machine Learning
    Python
  • $17 hourly

    • 4.2/5
    • (171 jobs)
    With over 8 years of hands-on experience in Mobile and Web application development, I specialize in crafting bespoke solutions tailored to your needs. Whether it's Native or Cross-platform development using technologies like React-Native or Flutter, or leveraging cloud-based solutions such as MEAN/MERN stack, I ensure reliable and cost-effective outcomes for your projects. Throughout my career, I've successfully delivered a diverse range of iOS and Android applications. From dynamic classified apps to engaging social networking platforms, from seamless e-commerce experiences to intuitive navigation with Google Maps integration, I've tackled various domains including but not limited to dating, taxi services, restaurants, food delivery, and freelance platforms. Fitness and Wellness Apps Educational Apps Productivity and Task Management Apps Entertainment and Media Streaming Apps Financial Management and Budgeting Apps Health Tracking and Medical Apps E-learning apps Gaming Apps Event Management and Ticketing Apps Language Learning Apps Here's a glimpse of my expertise: iOS Skills: Proficient in creating captivating animations and designs, ranging from simple gestures to complex GPU-accelerated transitions. Experienced in implementing In-App Purchase, Server Integration for live messaging, and feedback systems. Skilled in utilizing mapping technologies such as Google Maps SDK and Apple's MapKit for seamless navigation experiences. Expertise in data management using Core Data and Realm, with a preference for the latter due to its simplicity and performance. Prioritizing security measures including HTTPS implementation, secure password hashing, and encryption techniques. Proficient in leveraging CoreML for on-device neural network implementations for tasks like image and handwriting recognition. Well-versed in Location Services framework for efficient handling of GPS data. Android Skills: Proficient in Java, Kotlin, React Native, Redux, and Flutter Dart for versatile Android development. Experienced in building RESTful APIs with libraries like Volley and Retrofit. Skilled in implementing MVP pattern and utilizing reactive programming with RxJava, RxAndroid, and RxJs. Familiarity with Cloud Services like Firebase and AWS for scalable backend solutions. Expertise in media files playback and local data storage mechanisms such as Realm and SQL. Experienced in stress testing applications across various Android devices to ensure robust performance. Website Development Skills: Proficient in Website Development and Design, API Development, and integration. Skilled in utilizing technologies like Bootstrap, WordPress, HTML5, and Shopify. Expertise in front-end development with JavaScript, jQuery, and back-end development with PHP. I take pride in delivering high-quality, well-structured code while maintaining a strong sense of self-motivation, honesty, and reliability throughout the project lifecycle. Let's collaborate to turn your ideas into reality. Thank you.
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Next.js
    Cloud Architecture
    Sass
    Live Streaming Setup
    Agora Video SDK
    UX & UI
    MEAN Stack
    Flutter
    Mobile App Development
    Java
    React Native
    Firebase
    Kotlin
    Android App Development
    Swift
  • $29 hourly

    • 5.0/5
    • (11 jobs)
    Hi👋, my name is Taras. I am an iOS and tvOS Developer with 5️⃣ years of experience. I have experience in complete iOS, tvOS and watchOS developing apps, communicating with customers, and publishing. I’ve also developed a personal app for learning based on Ebbinghaus’s curve. 
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 10+ 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,
 Taras
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    AI Mobile App Development
    Mobile App Development
    iOS SDK
    tvOS
    Push Notifications
    iOS Development
    AV Foundation
    RESTful API
    UIKit
    Swift
    SwiftUI
    iOS
    Apple Xcode
    iPad App Development
  • $15 hourly

    • 4.9/5
    • (41 jobs)
    I am a seasoned Mobile Application Developer with a strong expertise in iOS, Android, and Flutter development. With a track record of over 3700+ hours and a top-rated status, I am committed to delivering high-quality mobile apps tailored to meet your specific needs. 🚀 Why Choose Me? Proven Track Record: With over 3700+ hours completed, I have a proven track record of delivering successful mobile applications. Diverse Skill Set: My technical skills span across iOS (iOS 7 to iOS 16.3.1), Swift (5.7.3 / 19), Objective C, Xcode, Android (including database skills - Sqlite, Mysql), and Flutter using Dart language. Innovative Solutions: I am proficient in utilizing the latest technologies and frameworks to design and develop mobile apps from scratch, ensuring they are cutting-edge and future-proof. Cross-Platform Expertise: I specialize in cross-platform app development with Flutter, providing efficient and cost-effective solutions for both iOS and Android platforms. 🛠️ Technical Skills: iOS Skills: Swift, Objective C, Xcode, Cocoa, Swift UI, and more. Android Skills: Database – Sqlite, Mysql, JDBC, Third-party APIs - Twitter, LinkedIn, Foursquare, and more. Google Services: Maps, Cloud Messaging, Play In-App Billing, Admob Ads Parsing. Cross-Platform: Flutter using Dart language. 🌟 Client Satisfaction: I prioritize client satisfaction and am dedicated to ensuring that your vision is translated into a seamless and functional mobile application. I thrive on delivering high-quality work within deadlines, ensuring a smooth and collaborative client experience. 📈 Let's Achieve Your Goals Together: Whether you need an expert in Swift, Kotlin, or Flutter, I am here to help revamp your mobile app or build one from scratch. Let's embark on this journey together, turning your ideas into reality! 💡 Additional Services: Code Optimization UI/UX Design Enhancement Bug Fixing and Maintenance Consultation on Latest Technologies 📬 Invitations are Welcome: I am open to collaboration and invite you to connect with me for a detailed discussion on your project requirements. Let's create something extraordinary together! Feel free to reach out, and let's get started on transforming your mobile app vision into a reality!
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Dart
    Android App
    Android App Development
    Flutter Stack
    Back-End Development
    Mobile App
    Third-Party Integration
    Amazon Web Services
    Payment Gateway Integration
    iOS Development
    Native App Development
    Mobile App Development
    Flutter
    Hybrid App Development
  • $75 hourly

    • 4.9/5
    • (171 jobs)
    -Top 1% web and mobile app designer and developer by Upwork -My clients apps have raised $250M+ USD and made it to Frobes -Trusted by Harvard, Yamaha, UC Berkeley & Samsung -100+ 5-star reviews across different platforms (UpWork, Clutch, Yelp) -#1 in San Francisco for web & app development by The Manifest & Expertise.com Do you have a great idea for a web or mobile app but not sure where to start? I’m looking to help 3 entrepreneurs a month in launching their web & mobile apps. If we are a good fit for one another, I’ll create a FREE Launch Deck for your idea, laying the foundation to bring it to life! I’m Marcos. I’ve been in your shoes. About a decade ago I launched my startup called SchooLinks with no tech background. I hired the wrong freelancers, used the wrong tech stack, and made many other expensive mistakes along the way. It was a nightmare to say the least. I learnt that "cheap" can be expensive. While anyone can design or code, very few can create products that not only scale but also remain stable over time. This is especially critical when developing MVPs (Minimum Viable Products) and POCs (Proof of Concepts), where the right approach can make the difference between success and costly failure. After 2 years, I was able to finally launch SchooLinks. It has raised over $10 MM USD and became the industry leader of its category. I learnt to design, code and went back to school at UC Berkeley, where I became the VP of Technology for Entrepreneurial Association. During my time there, I helped dozens of startups launch their apps! This experience led me to want to help other fellow entrepreneurs and business owners to avoid the expensive mistakes I made. As a result, my clients have raised over $250 MM USD with web and mobile apps I helped them launch. You can count on me being upfront when I don’t think we are a good fit and point you in the right direction. I believe this has led me to be on the top 1% on UpWork and have over 100+ 5-star reviews across different platforms (UpWork, Clutch, Yelp). My preferred tech stack includes: Figma, Flutter, NodeJS, Angular, AWS & MongoDB. I also have solid experience integrating API’s, including Stripe, ChatGTP and Twilio.
    vsuc_fltilesrefresh_TrophyIcon watchOS
    User Authentication
    JavaScript
    Software Development
    Android App Development
    iOS Development
    User Experience Design
    UX & UI
    Front-End Development
    Mobile App Development
    Web Application
    iOS
    Android
    UI/UX Prototyping
    Mobile App Redesign
    Mobile App Design
  • $10 hourly

    • 4.9/5
    • (40 jobs)
    I have 7+ years of experience in iOS programming since the first iPhone SDK release back in June, 2012. Also, I bought the very first Android device the same year and immediately started programming mobile applications for both platforms. Over all these years I accomplished amazing 50+ mobile projects successfully. Now, I wanna be one of the top upwork contractors with all of my work experience and my own technical know-how, providing high quality products to my business partners. My favorite development method: Mobile device platform: ✔ iOS 15, iOS 14, iOS 13, iOS 12, iOS 11, iOS 10, iOS 9, iOS 8 ✔ iPhone X, iPhone 8, iPhone 7 plus, iPhone 7, iPhone 6 plus, iPhone 6, iPhone 5s, iPhone5 ✔ iPad Air, iPad4, iPad3, iPad mini ✔ Google Nexus 5, Samsung Galaxy J7, S7, S6, S5, HTC One Experience: ✔ Native: iOS, Android (Kotlin, Swift, Objective C, Java), JNI, NDK (C/C++) ✔ Hybrid: React Native, Flutter, Ionic (HTML5, jQuery) ✔ Web : HTML, CSS, JavaScript, Bootstrap, React, Angular, Vue, Ajax, XML/JSON, REST/SOAP ✔ Device, Kit: Bluetooth Low Energy (BLE), iBeacon. ✔ Backend: MongoDB, PHP, Firebase, Amazon S3 EC2 AWS, Twilio ✔ Chat & Messaging Engine, Streaming: OpenFire, OpenTok WebRTC, Wowza ✔ Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation I can be 24*7 available to provide assistance to your project. Let's discuss your requirements, and start working together to complete the project successfully!
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Ionic Framework
    React Native
    Python
    iPad App Development
    Kotlin
    iPhone UI Design
    In-App Search
    Android App Development
    Objective-C
    iOS Development
    Amazon Web Services
    Core Java
    Android SDK
    Swift
  • $20 hourly

    • 5.0/5
    • (5 jobs)
    7+ software engineer, specializing in iOS/macOS development. My expertise extends to Flutter, C#, Node, and Angular. Enthusiast of Apple technologies, I have applied my skills across diverse industries, including banking, real estate, logistics, and education. Additionally, I'm passionate about mentoring aspiring developers in the field.
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Apple Xcode
    iOS
    Swift
    Flutter
    Mobile App Development
    iPadOS
    Dart
    iOS Development
  • $40 hourly

    • 5.0/5
    • (14 jobs)
    I am a Top-rated developer to bring all your product ideas into a success story. My experience in mobile software and web development field is ready to serve your business. I was working on Healthcare and Fitness apps, social and e-commerce solutions. There is a lot of experience in (but not limited to) Finance, Education, Travel and other entertaining and business apps. If you need a mobile app or website I'm happy to provide you with the solution. I have an extensive background in leading and driving all phases of software projects and client engagements with the largest brands as well as with tiny startups. Key facts: • Good references and happy clients, • Successful apps on the marketplaces, • Software Development Experience – over 15 years • Mobile Software Development • Web Development Software development is my passion. I achieve high quality of products with proven software development process. I can work both as individual and as a part of software agency which gives you bigger opportunities for scaling the work. Over the time has built various complex solutions for a diverse range of businesses and industries (Health&Fitness. IoT, Finances, Retail, IT management, e-Commerce, Marketing&Advertising, Transport&Logistics, Media&Publishing, Social networks, Entertainment). Sergey and his team can guarantee the highest quality of our services, quick turnaround, professional communication and 24/7 Skype/email support for our clients. Please get in touch with me for our references or to request a quote.
    vsuc_fltilesrefresh_TrophyIcon watchOS
    Health & Fitness
    Apple Watch
    Front-End Development
    Healthcare IT
    Swift
    React
    PHP
    Kotlin
    iOS Development
    React Native
    HealthKit
    Android
    iOS
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