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  • $80 hourly
    • 5.0/5
    • (10 jobs)
    Senior iOS Developer Fundamentals: Master Degree of Computer Science 10+ released projects 7+ years of iOS development experience 2+ years of Project Management experience (side, pet projects) Professional skills: - Highly proficient in object oriented methodologies, design patterns, data structures, algorithms, quality coding skills and excellent debugging skills; - Expert iOS platform mobile application development skills with a proven record of creating commercial quality software. Preference for Swift skills; - Debugging skills with proven experience in Xcode, Instruments and other performance analysis tools; - Strong experience and skills developing Swift and Objective-C iOS applications with Xcode; - Proven working experience with Apple products and services; - Strong problem-solving skills by identifying and correcting bottlenecks and fixing bugs. - Effective English communication skills.
    Featured Skill Mobile App Development
    Apple Xcode
    iPhone UI Design
    Smartphone
    iOS
    Realm Database
    Objective-C
    Swift
    Firebase
    JSON
    iOS SDK
    Core Location
    Cryptography
    UIKit
    iOS Development
  • $29 hourly
    • 5.0/5
    • (64 jobs)
    For twelve years, I work as an iOS Developer. During this time, I have completed many projects. More than half of my projects are client applications for servers. I understand how such applications are arranged. How to receive the data from a service using a REST API. I know how to parse a service response and display it in an app and create offline mode. I have experience with video and audio. I can combine video files, put sound on them, change this sound, add text or image to the resulting video. I worked with video and audio players and recorders. I worked with Maps. I can display places on this map, present custom callouts on it, and show routes from a user location to these places. I also can work with the CoreData framework. I know how to get data from a database on a thread and display it to a user without an interface freezing. In 2017 I decided to create some apps on my own. My friend is a radiologist, and he shared with me his idea about a medicine app. We have created this app and published it to AppStore. You can find it if you search for RadAnatomy and RadAnatomyLite. 50% of the proceeds I transfer to my friend. During the work on this app I put myself in the place of customers and gain the priceless experience how an idea is embodied to the app. I can use Photoshop and Sketch, and you do not need to slice images. Just provide me a file with a design. The rest I will do by myself. I pay attention to pixel-perfect and custom fonts because I respect designer work.
    Featured Skill Mobile App Development
    macOS
    Mac OS App Development
    Apple Xcode
    RxSwift
    iOS Development
    iOS
    Firebase
    Objective-C
    Swift
  • $20 hourly
    • 4.8/5
    • (47 jobs)
    🌟 Elevate Your iOS, iPhone, iPad, and macOS Development Projects with a Proven Expert! 🌟 🔹 Over a Decade of Mastery in Crafting Digital Excellence for Apple Platforms ✅ 50+ Successful Mobile Apps Delivered for iOS, iPhone, iPad, and macOS ✅ 4200+ Hours of Top-Tier Development Across 47+ Projects ✅ POS Expert – Built a custom Point-of-Sale (POS) system for a Canada-based pizza chain, deployed in 125+ stores 🔹 Why Choose Me? ✨ End-to-End Development – From concept to App Store deployment ✨ Agile/SCRUM Pro – Reliable, iterative, and transparent workflows ✨ Deep Platform Expertise – iOS, iPhone, iPad, macOS, Swift, Objective-C, SwiftUI ✨ Industry-Specific Solutions – FinTech, Healthcare, E-commerce, Social Media, POS, and more 🚀 My Specializations: 📱 App Development Expertise ✔ Social/Dating Apps – Video/audio chat, real-time messaging (WebRTC, Twilio) ✔ E-Commerce & Marketplaces – Payment gateways (Apple Pay, Braintree), cart systems ✔ On-Demand Apps – Ride-hailing, food delivery, home services ✔ Health & Telemedicine – HIPAA-compliant data, appointment booking ✔ Live & Video Streaming – Low-latency streaming (Agora, ZegoCloud) ✔ FinTech & Banking – Secure transactions, KYC integration ✔ Augmented Reality (ARKit) – Interactive AR experiences ✔ POS Systems – Custom-built for retail, restaurants, and multi-location businesses 💡 Technical Skills & Tools Languages: Swift, Objective-C, SwiftUI Architecture: MVVM, MVP, MVC, Clean Architecture Backend Integration: Firebase, REST, GraphQL, WebSockets (Socket.IO) AI & Chat: OpenAI API, ChatGPT, CometChat SDK Payments: Apple Pay, Stripe, Braintree, Moneris, In-App Purchases Testing: XCTest, UI Automation, CI/CD (Fastlane, Jenkins) Security: Biometrics, OAuth2, End-to-End Encryption 🔧 Advanced Integrations Real-Time Features: WebRTC, Live Streaming, VOIP (Linphone, Sinch) Maps & Location: Google Maps, Mapbox, Geofencing, Beacons Analytics & Crash Reporting: Firebase, Crashlytics, New Relic Push Notifications: Firebase Cloud Messaging, OneSignal Database: CoreData, Realm, SQLite 🎯 Industries I’ve Worked In: Retail & POS – Custom checkout systems, inventory management Food & Beverage – Delivery apps, POS for restaurants Healthcare – Telemedicine, fitness tracking Finance – Mobile banking, investment apps Travel – Airline & hotel booking platforms Social Media – Dating apps, audio/video communities 💼 Notable Projects: ✔ POS System for 125+ Stores – Custom-built for a Canadian pizza chain ✔ Live Video Social App – 1M+ downloads, WebRTC integration ✔ Banking App – Secure transactions, biometric login ✔ AI-Powered Wellness App – ChatGPT integration for personalized coaching 📩 Let’s Build Something Remarkable! I’m fluent in English and passionate about turning your vision into a high-performance Apple app. Whether you need a startup MVP or a large-scale POS solution, I’ve got you covered. 👉 Get in touch today—let’s discuss your project!
    Featured Skill Mobile App Development
    AI App Development
    Google Maps API
    Push Notifications
    Objective-C
    VoIP
    Firebase
    Map Integration
    Chat & Messaging Software
    Swift
    Mac OS App Development
    macOS
    iPhone
    iOS
    iOS Development
  • $35 hourly
    • 5.0/5
    • (10 jobs)
    I'm an iOS Developer who cares about these things: (and you should too!) 👉 Customer Experience 👉 Integrity 👉 Purpose 👉 Result What do I offer: ✅ 7 years of relevant experience in iOS Development ✅ Experience in working for an app with 10M+ monthly active users ✅ Experience in creating apps from scratch and publishing it to the App Store. ✅ Exceptional debugging skills. Can-fix attitude whether it's a UI, Network, App Behavior, or even 3rd party SDK related bug. ✅ Resourcefulness (by prioritizing results, I can work with minimal instructions by utilizing the documentations and other ready-made materials on the internet) 💎 QUALITY OF WORK. The apps/features that I develop are always at around 99% crash-free. Other relevant skills: 👍 Knowledge in publishing iOS apps built from other platforms (React Native, Flutter, etc.) 👍 High-quality work ethic, always responsive and transparent. Feel free to reach out to me if you have further questions. I'd be more than happy to help.
    Featured Skill Mobile App Development
    Swift
    iOS
  • $45 hourly
    • 4.7/5
    • (16 jobs)
    I'm very passionate about programming and i like creating creating applications that people like using. I have experience of working on products of well known companies.
    Featured Skill Mobile App Development
    iOS Development
    Android App Development
    MongoDB
    Node.js
    JavaScript
    Swift
    Objective-C
  • $100 hourly
    • 5.0/5
    • (70 jobs)
    MY SKILLS: * Platforms: iOS, iPadOS, watchOS, macOS * Languages: Swift, Objective-C, SQL, Dart & Flutter * All the usual Apple Frameworks: UIKit, SwiftUI, MapKit, CoreLocation, AVKit, StoreKit etc * Databases: Core Data, CoudKit, Realm, Firebase, SQL, ObjectBox, Parse * Other Libraries/frameworks: AWS, Facebook SDK, MapBox, AFNetworking/AlamoFire, SDWebImage, Vapour, SnapKit, Sourcery, SwiftGen & more * Source Control: Git, GitHub, Bitbucket. MY EXPERIENCE: * Programming since 2010 * Releasing iOS apps since 2014 * Freelancing on Upwork since 2016 * Top Rated freelancer since 2016 "Top Rated Plus is our way of highlighting freelancers and agencies who consistently perform on large contracts at the highest level." * Expert Vetted since 2023 "Expert-Vetted Talent is the top 1% — pre-screened by our Talent Managers and experts in their field." (this badge is only visible to Enterprise clients). * 100% Job Success Score since 2016 * Clients who would recommend me according to Upwork statistics: 98% * 62 completed contracts, 52 5 star reviews, 3 ~4.50 star reviews, 7 no feedback given * I estimate over 15,000 hours of coding experience creating apps and libraries for clients, my business and for fun * 8 apps published under my own developer account * 40+ apps released or updated for clients MY SERVICES: * Developing New Apps: Bring your ideas to life, whether you have a fully fleshed-out design or just a rough concept. I can work with you from the pre-development stage to app store release and beyond. * Enhancing Existing Apps: Improve your app by fixing bugs and implementing new features. If you're unsure about what needs to be done, I can review the code, identify problem areas, provide a full report and an estimate for you to decide on priorities and budget. * Consulting: Benefit from my expertise to guide you through the development process, ensuring you make informed decisions and achieve your project goals. * AI Generated Code Consultations: If you've been building your own app using AI to generate the code and have gotten stuck or need help, I can review the code and guide you to the next steps. MY WORKING STYLE: * Communication: I maintain clear and open communication for successful collaboration. I'm flexible with using Upwork, Slack, Zoom, Email, Phone, etc., as long as it complies with Upwork's rules. * Architecture: I write modular and S.O.L.I.D. code for better maintainability and reusability. * Unit Testing: I write unit tests to ensure app stability and maintainability, reducing development costs and improving app performance.
    Featured Skill Mobile App Development
    Machine Learning
    Core ML
    Cocoa Touch
    iOS Development
    API Integration
    Native App Development
    Swift
    Objective-C
    iPadOS
    iOS
    Apple Xcode
    Fastlane
    App Marketplace
    iPad App Development
    Apple Watch
  • $55 hourly
    • 4.9/5
    • (27 jobs)
    "Rock Solid Skills!! Azamat has amazing development and analytical skills. He is fast, collaborative and mission focused! He is one of those developers, who just understands what you want, quickly." I can help you with your iOS application whether you want to build it from the ground up or you want to add new features/improve it. To provide the best results I implement a high-quality development process from end to end through prototyping, validation, implementation, launch, and further iteration. It's the responsibility of a programmer to provide secure, scalable, maintainable, and bug-free solutions nowadays. Because there is a high demand for complex iOS applications and more and more important parts of our lives connected with our devices. It's a challenging task and I always ensure that I meet these challenges. I am keen on developing my test-driven methodology and strive to keep up to date with my programming skills. Programming is not only my job but also my hobby. I'd be very glad to work with you. ✅ Swift, Objective-C, C, C++ ✅ MVC, MVP, VIPER, MVVM, Clean Architecture ✅ TDD, Clean, maintainable code ✅ Continuous Integration ✅ Agile methodology I graduated from the Ufa State Aviation Technical University in 2010 and then worked as a full-stack web developer. I know the frontend and backend side of the projects. I then started my iOS career by building my own applications, and games following that I worked for a large Multinational company in Russia where I developed complex iOS applications in Objective-C for iPhone/iPad. Presently, I'm an independent iOS engineer and ready to help you. You can find examples of successful projects in my profile. My recent project was a complex app for employment with video profiles. I was responsible for developing an employment app from the ground up. The main challenge was to implement a complex caching/prefetching system for video files. My skill-set: OpenAI API, ChatGPT, Gemini Developer API, Sendbird Firebase, Twilio, Payonline, Paymobile, card-io, Apache​ Thrift​, Superwall, Revenuecat CircleCI, Bitrise, Git, CI/CD, Passbook, Core Data, In-app purchases, Sprite-Kit, Touch ID, Deep links, Branch, Mixpanel, TwitterSDK, FacebookSDK, XML/JSON, REST, H.264, FFMPEG, Wowza, RTSP, Linea Pro, Quickblox, iBeacon, Swift5.2, SwiftUI, Combine, Neumorphic design, Neumorphism, iOS Development, Swift, Objective-C, C/C++, JavaScript, Xcode. CoreML, Vision, ailabtools I look forward to working with you. Feel free to contact me for more details.
    Featured Skill Mobile App Development
    Problem Solving
    Firebase
    iOS Development
    Agile Software Development
    RESTful API
    Objective-C
    Continuous Integration
    Swift
    Stripe
    In-App Purchases
    Business with 1-9 Employees
    GraphQL
    Unit Testing
    iOS
    Apple Xcode
  • $40 hourly
    • 5.0/5
    • (36 jobs)
    I am an expert mobile application developer of IOS and Android with around 10 years of experience. My coding skills are top notch as I develop state of the art applications with maintainable and clean code. My objective is to provide for my clients, the best quality work. I believe that my success is directly related to the success of my client. For me, The most important part of the job is to understand the requirements of the client and use my expertise to provide the best quality content to bring fortunes for my client.
    Featured Skill Mobile App Development
    Bootstrap
    Android App Development
    iOS Development
    iOS
    Smartphone
    Swift
    HTML5
    CSS 3
    AngularJS
  • $96 hourly
    • 5.0/5
    • (13 jobs)
    I ❤️ solving iOS problems - big and small. You can hire me to fix a bug, implement a complex feature, integrate ChatGPT or other services or frameworks, implement a design, or write a whole new mobile app from scratch. WHAT I OFFER • I prefer setting clear milestones from the beginning of the project and delivering on time. • Communication is a top priority for me, I post regular updates on my progress. • I write top-quality, maintainable, and robust code. • I freelance full-time, and you have my full attention on your project. EXPERIENCE I’m a seasoned iOS developer with 12 years of experience making 5-star-rated apps for the iPhone, iPad, and Apple Watch. In my previous role as a full-time senior developer, I was responsible for the development of business and productivity apps - document processing, cloud storage, and online collaboration. Before I fell in love with iOS I had 10 more years of experience developing mobile applications for Symbian, Palm, and Windows Mobile. I am familiar with most standard iOS APIs such as UIKit, Foundation, SwiftUI, Combine, animations, in-apps, push notifications, MapKit, StoreKit, StoreKit 2, Sign In with Apple, etc. I can help with App Store Review guidelines and issues. I’ve used many third-party frameworks like Firebase, AdMob, Facebook SDK, Flurry, AppsFlyer, etc. Dev tools: Xcode, Git, Figma, Jira, Trello, TestFlight, Jenkins. Don’t hesitate to drop me a message. I’d love to discuss your project.
    Featured Skill Mobile App Development
    Mobile App
    ChatGPT API Integration
    SwiftUI
    iPad App Development
    AI Mobile App Development
    Apple Xcode
    In-App Purchases
    iOS Development
    iOS
    iPadOS
    Firebase
    Swift
    Objective-C
    Native App Development
  • $99 hourly
    • 5.0/5
    • (42 jobs)
    ✅ Upwork Top Rated & Verified Mobile Developer Apple App Store Rankings: #74 Overall | #5 Sports | #25 “What’s Hot” | #11 Productivity ✔︎ 5-star rated | 100% Job Success | 15+ years experience ✔︎ 75+ projects completed | 50+ apps published to Apple App Store / Google Play ✔︎ Extensive iOS and Android experience (Swift, Objective-C, Kotlin, Java) Creating a modern app is a challenging task, so having someone to help you navigate through the many complexities of not only creating the app, but also getting it live on the store is necessary. I realize how important this project is to you, and with my experience and track record I will be your advocate throughout the entire process. Communication is key to the way that I develop software. With proper communication you can feel confident that all aspects of the app development are moving in the right direction. I will keep you aware of the apps’ progress both with frequent communication by phone/email/Zoom and with consistent updates that can be downloaded and installed on your devices. You are the expert on what the app needs and only you know what is going to work for you and your users. As a former teacher, helping people reach their goals comes naturally to me. I’m looking forward to helping you create the next great app! ------------------------------------------------------------------------------------------------------ Apps developed in these app store categories: Productivity, Medical, Health & Fitness, Sports, Utilities, Education, Games, Music, Books, Business, Lifestyle, Reference, Shopping, News, Navigation, Photo & Video, Food & Drink, Social Networking, Entertainment Large clients include: Stanford University, Monster Digital, UC Davis, Allegheny Health Network, Schroeder Publishing Co, Washington Suburban Sanitary Commission, Cambridge Health Alliance, VICIS Sporting Goods **Additional information available at my company’s website twosuntraders.com.
    Featured Skill Mobile App Development
    Mobile App Development Consultation
    Mobile App Improvement
    App Store
    Kotlin
    SwiftUI
    iPad App Development
    Android App Development
    iOS Development
    Firebase
    iOS
    Swift
    Objective-C
    iPadOS
  • $45 hourly
    • 5.0/5
    • (4 jobs)
    ✅ 𝟐𝟓 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ✅ 𝟓𝟎𝟎+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐲𝐞𝐚𝐫𝐥𝐲 ✅ 𝟐𝟎+ 𝐢𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 ⚠️ 𝐏𝐫𝐞𝐬𝐬 𝐈𝐧𝐯𝐢𝐭𝐞 𝐁𝐮𝐭𝐭𝐨𝐧 𝐨𝐧 𝐦𝐲 𝐩𝐚𝐠𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 Welcome to my Upwork profile! As an experienced iOS Developer with over 8 years of hands-on experience in mobile application development, I specialize in creating innovative and high-performance native iOS apps. My expertise spans across the entire mobile app development lifecycle, from UI/UX design to API integration and App Store deployment. I work with cutting-edge technologies such as Swift, Objective-C, UIKit, Core Data, SwiftUI, Xcode, and Cocoa Touch to deliver robust solutions tailored to your business needs. 🚀 I specialize in developing custom mobile apps, including social networking apps, e-commerce apps, enterprise-level solutions, and utility apps. I have extensive experience in third-party API integrations, cloud services, backend connectivity, and push notifications. Additionally, I am highly skilled in performance optimization, bug fixing, code refactoring, and multithreading to ensure smooth and responsive apps. 📱 Whether you're building a start-up app or scaling an existing product, I focus on delivering high-quality, user-centric apps that align with your goals. I also work closely with backend developers and UI/UX designers to create a cohesive and efficient development process. My Services Include: - iOS App Development using Swift and Objective-C - Mobile App Design (UI/UX) - API Integrations (RESTful APIs, GraphQL, Firebase, etc.) - App Performance Optimization - App Store Submission & App Store Optimization (ASO) - Backend Integration & Cloud Services - Custom UI/UX Designs for intuitive user experiences - Push Notifications and in-app messaging, etc. My approach is always collaborative; I strive to understand your business goals and ensure full transparency throughout the process. I’m passionate about delivering high-quality solutions that provide exceptional user experiences. ✅ Fast project start | ✅ Full transparency | ✅ Quality-driven results If you're looking for a skilled and reliable iOS developer who can bring your mobile app idea to life with clean code, exceptional UI, and seamless performance, please don't hesitate to contact me. I look forward to hearing from you! 😉 🔑 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐭𝐨 𝐟𝐢𝐧𝐝 𝐦𝐞: iOS Developer, Swift, SwiftUI, iOS developer, App Development, iOS Developer, Mobile Developer, Swift Developer, Objective-C, iOS App Development, Swift, Objective-C, CoreData, UIKit, MapKit, Core Animation, Core Location, Autolayout, GPU Image, Mobile Architecture, Advanced iOS Features, Networking Libraries, iOS Performance Optimization, Memory Management, Bluetooth Integration, Camera Integration, Cocoa Touch, Push Notifications, Multithreading, Xcode, Swift Networking, iOS Frameworks, App Store Optimization (ASO), Firebase Integration, GraphQL Integration.
    Featured Skill Mobile App Development
    Mobile App Design
    Full-Stack Development
    iOS SDK
    iPhone
    Mobile App
    Software Architecture & Design
    iPhone & iPad Apps
    Smartphone
    Native App Development
    Objective-C
    Swift
    iOS Development
    iOS
  • $55 hourly
    • 5.0/5
    • (3 jobs)
    I'm an iOS developer and UI/UX designer experienced in building products from the concept to completion. Whether you need help developing an entire app, a feature for an app, or just some UI/UX design, I'd love to help out. - Expert in Swift & SwiftUI for native, fast product development - Experience with branding and visual design for beautiful + performant projects - Experience building app backends in Swift for full stack development - Experience with other programming languages like Python, HTML, CSS, and Javascript for smaller tasks and scripts - Great communicator, flexible and quick to learn
    Featured Skill Mobile App Development
    AWS Development
    Git
    Docker
    Figma
    UX & UI Design
    RealityKit
    XCTest
    SwiftUI
    JavaScript
    Python
    Apple Xcode
    ARKit
    UIKit
    Swift
    iOS
  • $50 hourly
    • 4.9/5
    • (27 jobs)
    I’m a Software Engineer and Mobile Developer with over a decade of experience building high-quality native apps. My expertise covers both iOS and Android development, using latest standards for both platforms. But I'm also familiar with writing and deploying REST backend APIs using Vapor, Node.js with SQL databases. Fluent in English with over 7,000 hours logged on Upwork, I’ve earned a top-rated status and maintained a 100% job success rate, guaranteeing you a high standard of work. My apps, including both personal and client projects, have been downloaded by over 100,000 users, earning ratings of 4.5 stars or higher. I enjoy using clean architecture principles and writing SOLID, maintainable code. From concept to launch, I’ve transformed designs from tools like Figma and Sketch into seamless, pixel-perfect store published apps. What I’m great at: - iOS development with Swift, SwiftUI, Vapor, and Objective-C - Android development with Kotlin and Jetpack Compose - Building robust, scalable code using MVVM and Clean Architecture - Clear, concise communication. Let’s connect!
    Featured Skill Mobile App Development
    Software Architecture
    JetPack
    JSON
    Android App Development
    Objective-C
    iOS Development
    RESTful Architecture
    tvOS
    Kotlin
    Swift
    Android
    iOS
  • $60 hourly
    • 4.8/5
    • (20 jobs)
    I am an enthusiastic iOS developer with a strong programming background and over 7 years of experience. I specialize in developing native iOS apps for iPhone and iPad using Swift and Objective-C. My portfolio spans various domains including fitness, sports, education, and social media, and I have consistently delivered high-quality, client-satisfying projects. Key Skills and Services: - iOS Development: Proficient in Swift, SwiftUI, and Objective-C. - SDK Integrations: AV Foundation / Camera, Authentication Services, PhotoKit - (Files/Images), Core Animation, Core Data, EventKit, EventKitUI, Vision, ARkit, In App Purchases, SwiftUI, UIKit. App Maintenance: Providing ongoing maintenance and updates for existing projects. - Education: BS in Software Engineering from a reputed university. - Competitions: Participation in Google Code Jam, HackerRank, CodeFest, and other programming competitions. I am committed to delivering satisfactory and high-quality work to establish long-term relationships with my clients. Looking forward to collaborating with you.
    Featured Skill Mobile App Development
    RxSwift
    MVC Framework
    User Authentication
    In-App Purchases
    Firebase
    Objective-C
    Swift
    API Integration
  • $90 hourly
    • 4.4/5
    • (11 jobs)
    I've been at it since 2009 — developing iOS apps for startups, software development agencies, and large corporations. I'm great with UI & UX design, and specialize in audio and music software. App development is often an exercise in striking a balance between the ideal functionality and what can be achieved within a short timeline. The objective is to minimize time and effort while providing an exceptional user experience. I enjoy this balancing act — it's the core of the value I provide to my clients, in addition to clean & easily maintainable code, and interfaces that look and feel sublime. Services: • iOS Development • UI & UX Design • Music & Audio Apps Languages and frameworks: • SwiftUI, UIKit • Swift, Objective-C, C, C++ • Core Audio, AVFoundation, AudioKit, and a trillion other frameworks Tech: • In-App Purchases / Subscriptions • API Integration • REST APIs • Supabase • Firebase • Localization • Analytics • Unit Testing • CI/CD • Xcode • Git If you have an app, an idea, or both — let's connect!
    Featured Skill Mobile App Development
    Objective-C
    macOS
    Apple Xcode
    Supabase
    UX & UI Design
    Music Theory
    Music
    Audio & Music Software
    iOS
    iPhone & iPad Apps
    UIKit
    SwiftUI
    Swift
    iOS Development
  • $12 hourly
    • 4.5/5
    • (13 jobs)
    I have 8+ years of native iOS experience. Major Programming languages are Objective C and Swift. Experience in build complex application with a high-quality level Experienced in creating an application from scratch, releasing it in Appstore, and updating an existing application Technical Skills For Mobile Development - Frameworks: RxSwift, Alamofire, AFNetworking, Google Maps - Product Design & Analysis - Project Risk Analysis - Effective Cost & time estimation - User Requirements Analysis - Functional Specification - Development in iOS, NodeJS - AutoLayout - Appstore submission Appstore review
    Featured Skill Mobile App Development
    Mobile App Design
    RESTful API
    CodeIgniter
    Mobile UI Design
    Cocoa Touch
    Laravel
    iOS Development
    Flutter
    Swift
    Objective-C
  • $200 hourly
    • 5.0/5
    • (17 jobs)
    I am an Entrepreneur and Senior Developer with a focus on developing technology products for iOS and MacOS. During the last 12 years I served in multiple roles developing products from scratch, managing teams, starting a new company and creating the world’s best two mobiles apps: Horos Mobile (DICOM workstation) and CT Anatomy. Today as the leader of a team I cover all aspects of software development, business operations and technology leadership. I have a big passion for technology innovations, operations efficiency and bold moves. I have also worked for the NHS as a Head reporting radiographer (MSc in Medical Imaging).
    Featured Skill Mobile App Development
    Database Programming
    Mac OS App Development
    iPhone UI Design
    RealityKit
    3D Design
    2D Design
    iPad UI Design
    Swift
    Objective-C
    iOS Development
    iPadOS
  • $40 hourly
    • 5.0/5
    • (3 jobs)
    I create iOS apps that are intuitive, fast, and designed to drive business results. With a solid foundation in programming concepts and a passion for learning, I am here to take on new challenges and build upon my skills. I am committed to delivering high-quality work and excited to collaborate on new projects. Let’s create something amazing together! My Skills: • Swift, SwiftUI and UIKit; • Strong knowledge of OOP and SOLID principles; • Experience with MVC, MVP, MVVM, and MVVM-C design patterns; • Solid understanding of CocoaPods, Swift Package Manager, and Git; • Proficient in Auto Layout, JSON parsing, and REST API integration; • Deep understanding of concurrency in iOS using GCD, OperationQueue, and Swift’s async/await • Implemented Core Data, SwiftData, Realm, and SQLite; • Experience with Firebase, Google Cloud Platform, Supabase; • Familiar with libraries such as Alamofire, Kingfisher, SnapKit, Lottie, and many others; • Experienced in integrating AI APIs such as OpenAI, Claude (Anthropic), Google ML Kit and others.
    Featured Skill Mobile App Development
    OpenAI API
    Firebase Realtime Database
    Firebase Cloud Firestore
    Twilio API
    Dropbox API
    Supabase
    SwiftUI
    UIKit
    Firebase
    GitHub
    Apple Xcode
    Figma
    iOS Development
    Swift
  • $20 hourly
    • 5.0/5
    • (2 jobs)
    Hi 👋 I am an iOS developer with about 3 years of experience. I've been involved in many aspects of creating and maintaining applications, such as analysis, implementation, user interface design patterns and principles, writing unit tests, code reviews and etc. Tech stack: iOS, tvOS; Swift; Xcode; Combine, RxSwift, GCD; MVC, MVVM, MVP, VIPER, CleanSwift; UIKit, SwiftUI; TinyConstraints, SnapKit; Realm, Firebase, CoreData; REST, GraphQL; Fastlane, TestFlight distribution; CocoaPods, SPM, Carthage; SwiftGen, SwiftLint, SwiftFormat; CI/CD; XCTest; Git.
    Featured Skill Mobile App Development
    Jira
    TestFlight
    Fastlane
    XCTest
    Git
    REST API
    SwiftUI
    SpriteKit
    Apple Xcode
    tvOS
    Realm Database
    RxSwift
    UIKit
    Swift
    iOS
  • $75 hourly
    • 4.9/5
    • (58 jobs)
    Ever felt swamped in the vast sea of mobile app developers? It's frustrating when deliveries are late, functionalities go missing, and codes resemble intricate mazes. Trust me, you aren't the only one navigating these waters. Many collaborators have shared stories of past stumbles. But here's a ray of hope: we can steer towards a brighter horizon. With a decade under my belt and a heart full of passion, I aim to rewrite these narratives. Some Milestones: ⭐ Spearheaded development for Fitbit, which impressively raised $66M. ⭐ Had the honor of collaborating with Pure, Powerdot, and Xsat, all of which celebrated significant investment milestones. ⭐ Steered numerous projects using cutting-edge technologies, simplifying and accelerating the development trajectory. ⭐ Seamlessly merged the principles of Agile & Scrum, fostering flexibility and quick turnarounds. Let me introduce myself I'm Sergey, possibly your next Lead Android/iOS Developer. The past decade has been an exhilarating roller-coaster, packed with invaluable experiences, challenges, and a string of successful projects. I've lent my expertise to startups, and industry giants, helping them manifest their mobile app dreams. Why do they choose me? ✅ A relentless drive to craft projects that stand out and garner rave reviews. ✅ Undying support post-project because our relationship isn't just transactional. ✅ A rich toolkit encompassing Kotlin, Swift, and trailblazing frameworks like Jetpack Compose & SwiftUI. ✅ Agility in approach with a deep-rooted foundation in OOP & Functional programming styles. My Array of Specialties: 📱 Leading mobile development with Kotlin, Java, Swift 🚀 Cross-platform mobile app development using Flutter, React Native 🌐 Backend prowess with Firebase and Node.js. 💻 Architectural excellence with MVVM, MVP, MVI, and VIPER. 🔄 Transparent updates and effortless communication, ensuring you're always in the loop. In a nutshell? I value transparency, efficiency, and making a tangible difference. It's not just about crafting any mobile app, but sculpting one that resonates, scales, and surpasses the norm. Ready to embark on an extraordinary journey? Let's unite over a virtual coffee and set the wheels in motion for your next mobile marvel!
    Featured Skill Mobile App Development
    Machine Learning
    VPN
    Wear OS
    Smartphone
    Mobile App
    iOS
    Android
    iPad App Development
    Kotlin
    Android NDK
    Java
    Android App Development
    Android SDK
    Swift
    iOS Development
  • $65 hourly
    • 5.0/5
    • (11 jobs)
    I am an iOS developer with 7 years of experience, utilizing my skills to build various iOS projects using various technologies. My current focus is on building robust projects with SwiftUI and a strong project architecture. My passion for technology and commitment to delivering high-quality work have resulted in a deep understanding of the iOS platform and a proven track record of success. I strive to consistently exceed client expectations and deliver results that meet their unique needs.
    Featured Skill Mobile App Development
    Supabase
    Firebase Cloud Firestore
    Firebase
    Flutter
    Apple HealthKit
    iPhone & iPad Apps
    Mobile Development Framework
    Mobile App
    Mobile App Development Consultation
    Apple Xcode
    Swift
    iOS Development
  • $60 hourly
    • 5.0/5
    • (55 jobs)
    ✅ TOP RATED PLUS EXPERT (top 1% of performers on Upwork), specializing in mobile native and hybrid apps. (iOS, Android, React Native) ✅ 10+ years of experience building mobile software for clients like Apple, Facebook and more, I am the developer who will complete your project with the highest quality and satisfaction within the agreed upon timeframe. Developing good rapport with excellent communication is important to me and I guarantee 100% satisfaction!
    Featured Skill Mobile App Development
    Interactive Design
    UX & UI
    Web Application
    UX Research
    UI/UX Prototyping
    Apple Xcode
    Mobile UI Design
    Objective-C
    Flutter
    iOS Development
    Webflow
    User Experience Strategy
    Swift
    React Native
  • $35 hourly
    • 4.5/5
    • (25 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 👷
    Featured Skill Mobile App Development
    RESTful Architecture
    Push Notifications
    MapKit
    Flutter
    Apple Xcode
    iOS
    Model View ViewModel
    MVC Framework
    Firebase
    Firebase Realtime Database
    ChatGPT API
    Core Animation
    ARKit
    App Store
    API
    Core Data
    In-App Subscription
    In-App Purchases
    iOS SDK
    iOS Development
    Native App Development
    UIKit
    SwiftUI
    Swift
  • $30 hourly
    • 4.9/5
    • (25 jobs)
    Over the last 5 years, I have developed a wide range of iOS Applications including apps for small businesses and for huge international companies. I am an expert in creating native iOS apps. Software development is my greatest skill and I have an incredible attention to detail and perseverance in getting the job done, and done well. My goal - "not doing too many things satisfactorily but doing selective things perfectly"
    Featured Skill Mobile App Development
    RESTful Architecture
    Social Networking Development
    Objective-C
    Swift
    iOS Development
  • $15 hourly
    • 5.0/5
    • (9 jobs)
    Hi, If you are looking for a 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐜𝐫𝐞𝐚𝐭𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 App Developer, you have come to the right place - I will eagerly become your longtime partner. I am an expert 🆃🅾🅿- 🆁🅰🆃🅴🅳🏅 App Developer (Android, iOS) with 7+ years of experience, 𝐈 𝐡𝐚𝐯𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐝, 𝐭𝐞𝐬𝐭𝐞𝐝, 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲𝐞𝐝 𝐬𝐞𝐯𝐞𝐫𝐚𝐥 𝐚𝐩𝐩𝐬 𝐨𝐧 𝐛𝐨𝐭𝐡 𝐭𝐡𝐞 𝐚𝐩𝐩 𝐬𝐭𝐨𝐫𝐞 𝐚𝐧𝐝 𝐩𝐥𝐚𝐲 𝐬𝐭𝐨𝐫𝐞.I prefer long-term work and am In love with coding and am proud of my creations! I am working on high-quality iOS/Android applications for different industries, including medicine, marketing, advertisement, etc as a developer. I have overall 6 years of experience. It's important to me to create supportable and upgradable applications. I prefer to build long-term relations with my customers. When they come back to add support for new mobile devices or new features - I am always glad to see that application continue its life. My Skill Set: ------------------- - Flutter, Dart - Swift, Xcode, iOS SDK - Java, Kotlin, Android Studio - Super Level UI Customization, Suggestion of Best User-Friendly and elegant UI/Graphic design - Google Map Service, Real-time tracking, Geo-location, GPS, Geo-fencing - Web services, REST/SOAP, XML/JSON Domains on which i developed apps ------------------------------------------------- On-Demand Marketplace Utility Social networking/Chat/messaging Mini-games E-commerce Bluetooth/beacons Taxi/booking Fitness/health Coding Strategy: ------------------------- *Well-optimized, clean, robust, and well-commented code with qualified naming conventions. * Multi-Language Support * Localization And Internationalization support * API /Web Service Integration Thanks!
    Featured Skill Mobile App Development
    RESTful API
    Apple Xcode
    Android App Development
    iOS Development
    Firebase
    Kotlin
    Java
    PHP
    Firebase Realtime Database
    Swift
  • $30 hourly
    • 5.0/5
    • (24 jobs)
    I'm an expert iOS Swift developer with a passion for UX / UI. I have been creating iOS apps for 4+ years. I have worked with the most complex technologies in iOS such as AVFoundation, HLS Live Streaming, ARKit, Sprite Kit. I am extremely communicative, and I understand what exactly needs the business so I offer the best solutions for it. I am extremely communicative, always available for any type of calls, meetings, so be free to discuss with me your next successful project.
    Featured Skill Mobile App Development
    iOS Development
    StoreKit
    Firebase Realtime Database
    Firebase
    Core Data
    UIKit
    WebKit
    iOS
    ARKit
    iPadOS
    Realm Database
    Swift
  • $45 hourly
    • 4.8/5
    • (116 jobs)
    Thanks for viewing my profile! I am a detailed and thorough professional with over 10+ years of extensive experience in Mobile application development. I specialize in delivering quality services with respect for strict deadlines. Both my experience and problem-solving skill made me an outstanding developer. I will apprehend your business requirements and will help you choose the right technology for your solution. Below are some of the domains and technologies I've worked on. 🎨 User Interface and User Experience Designing Figma, Invision Studio, Adobe XD, Adobe Illustrator, Adobe Photoshop, Sketch, Balsamiq, etc. 📱 Mobile Application Development (Native & Hybrid) Kotlin, Java, Swift, ObjectiveC, React Native, Flutter 📟 Augmented Reality (AR) Vuforia, ARKit, ARCore Let's meet and discuss how to convert your idea into reality using technology!
    Featured Skill Mobile App Development
    Graphic Design
    Dating Website
    Mobile UI Design
    Travel & Hospitality
    Health & Wellness
    Apple Xcode
    Mobile App Testing
    Kotlin
    Java
    Augmented Reality
    Android App Development
    Payment Functionality
    Swift
    iOS Development
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Mobile App Developer Hiring Guide

What is a mobile app developer?

A mobile app developer is a software professional who designs, develops, and maintains applications for mobile devices like smartphones, iPads, and tablets. Specializing in mobile application development, these experts use programming languages like Swift, Java, Kotlin, and JavaScript to build apps tailored to specific business needs. Developers focus on optimizing functionality, enhancing user experience, and ensuring seamless performance on platforms such as iOS, Android, and cross-platform apps.

The app development process involves creating intuitive user interfaces, integrating APIs for advanced functionality, and ensuring compatibility with various operating systems. Whether developing apps for e-commerce, healthcare, IoT, or real-time communication platforms, developers address business goals by delivering high-quality, scalable solutions. Skilled in frameworks like Flutter, React Native, and Xamarin, they handle everything from end-to-end systems to UI/UX design, creating engaging and effective apps that meet the needs of diverse industries.

Why hire a mobile app developer?

Hiring a mobile app developer ensures your mobile app development project is executed with expertise, precision, and attention to detail. Developers specialize in creating apps for platforms like the App Store and Google Play, ensuring your application meets the technical and design standards required for successful launches. By focusing on usability, functionality, and app performance, developers help businesses create apps that deliver value to users and align with their business goals.

Experienced developers can handle iOS app development, android app development, and cross-platform apps, offering versatility to meet the demands of different markets. For startups, hiring a developer can help turn ideas into reality by building prototypes or MVPs. At the same time, established businesses can leverage developers to scale their offerings with advanced features like real-time messaging or IoT integrations.

A skilled development team also ensures the app is optimized for performance through rigorous quality assurance testing, debugging, and refining the workflow. Whether you need a user-friendly interface, advanced back-end capabilities, or seamless integration with APIs, a developer can provide the expertise to bring your vision to life.

How to hire a mobile app developer

To hire a skilled mobile app developer on Upwork, follow these steps:

  • Define your needs. Decide whether you need assistance with iOS app development, android app development, or a hybrid app that works on multiple platforms. Outline your business goals and desired features, such as real-time messaging, e-commerce capabilities, or IoT integrations.
  • Write a detailed job post. Specify the skills you’re looking for, such as expertise in Flutter, React Native, or Swift, along with experience in UI/UX design and app performance optimization.
  • Evaluate candidates. Look for professionals with strong programming language skills, a portfolio showcasing successful mobile application development services, and expertise in cross-platform apps or native development.
  • Request references and case studies. Review past development projects to assess their ability to deliver high-quality results.
  • Set clear expectations. Define deliverables, timelines, and specific tools or frameworks required for the project, such as SDKs or APIs.

How to write a mobile app developer job post

Creating a detailed job post helps attract the right talent for your project. Follow these steps:

  • Use a clear title. Examples include “Experienced iOS Developer Needed for Healthcare App” or “Cross-Platform App Developer for Real-Time Messaging.”
  • Provide a project overview. Explain your goals, such as improving app performance, creating a seamless user experience, or building a robust back-end.
  • Highlight required skills. Mention technical expertise in areas like Flutter, Xamarin, JavaScript, or API integration. Outline specific skills, such as UI design experience or knowledge of HTML.
  • Define deliverables. Specify what you expect, such as a fully functional app ready for the app store, a tested MVP, or ongoing quality assurance support.
  • Add context. Share information about your industry, whether it’s e-commerce, healthcare, or a startup, to help candidates understand your specific needs.

Common mobile app developer services

Mobile app development services cover a wide range to meet diverse business requirements and target audiences. Here are some common services:

  • iOS app development. Creating applications for iPhones and iPads optimized for Apple’s operating system and the app store.
  • Android app development. Building apps compatible with various Android smartphones and tablets, ensuring functionality on Google Play.
  • Cross-platform app development. Using methodologies and frameworks like Flutter and React Native to create apps that work seamlessly on both iOS and Android platforms.
  • UI/UX design. Mobile app design requires intuitive and visually appealing interfaces that enhance user experience and improve engagement.
  • Back-end development. Reputable providers deliver robust server-side systems for APIs, databases, and real-time data synchronization.
  • Prototyping and MVPs. Creating initial app versions to test ideas and gather feedback, helping refine the app development process.
  • E-commerce solutions. Building apps with features like payment gateways, inventory management, and personalized shopping experiences for online stores.
  • Quality assurance and debugging. Ensuring apps are free of errors through rigorous testing and debugging, maintaining high-quality standards.

FAQ

What qualifications should a mobile app developer have?

A mobile app developer should have expertise in programming languages such as Swift, Java, JavaScript, and Kotlin. They should be skilled in using frameworks like Flutter, React Native, and Xamarin and have experience with UI/UX design, API integration, and optimizing app performance. Strong problem-solving skills, a proven ability to handle back-end and front-end tasks (such as a full-stack developer), and familiarity with app development costs and timelines are essential. Developers should also stay updated on trends in mobile app development to deliver innovative solutions.

Can mobile app developers work remotely?

Yes, many mobile app developers work remotely, providing services such as coding, testing, and optimizing apps for platforms like the App Store and Google Play. Remote developers often use collaboration tools to maintain efficient communication with development teams and clients, regardless of location. This flexibility allows businesses to hire top talent for projects, whether they are based in New York or anywhere else.

How do mobile app developers ensure app performance?

Mobile app developers ensure app performance by writing optimized code, conducting rigorous testing, and using tools like SDKs and performance monitoring software. They focus on enhancing usability, ensuring compatibility across devices, and optimizing apps for real-time functionality. Regular updates and debugging also play a crucial role in maintaining smooth operation and meeting user expectations.

What tools do mobile app developers use?

Developers rely on tools like Xcode for iOS app development, Android Studio for Android, and frameworks like Flutter and React Native for building cross-platform apps. Design tools like Figma or Adobe XD are used for UI/UX design, while APIs and SDKs enhance app features. For project management and collaboration, tools like Microsoft Teams or Slack are commonly used to streamline workflows.

What industries benefit from mobile app developers?

Mobile app developers create solutions for industries like e-commerce, healthcare, IoT, and startups, delivering apps tailored to specific business needs. For example, they can build e-commerce apps with payment integration, healthcare apps with patient portals, or real-time messaging platforms for communication. Their versatility ensures businesses across all sectors can achieve their goals through innovative apps.

Hire a mobile app developer on Upwork

Find top mobile app developers on Upwork to create innovative applications that align with your business goals. Whether you need an iOS, Android, or cross-platform solution, Upwork connects you with professionals skilled in UI/UX design, API integration, and the app development process.

With expertise in programming languages, frameworks like Flutter and React Native, and platforms like the App Store and Google Play, these developers deliver tailored solutions for industries ranging from e-commerce to healthcare. Post your job today to hire top talent who will bring your app vision to life with high-quality results.

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Mobile App Developer Hiring Resources

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