Name: Swift developers
Brand: Upwork
Rating: 4.7 (878 reviews)

Check out Swift Developers in the United States with the skills you need for your next job.

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Clients rate Swift developers

4.7/5

based on 878 client reviews

$35 hourly
- 5.0/5
- (15 jobs)
Independent mobile developer. President of Oxigenic Inc. I make ideas come to life. Let's make yours next.

Swift
Audio Production
Graphic Design
In-App Subscription
In-App Purchases
SQL
Firebase
Game Development
App Development
iOS Development
Mobile App Development
$56 hourly
- 5.0/5
- (11 jobs)
Android Experience: o Kotlin and Java o Jetpack Compose, XML, and view binding o Android Studio IDE and Google Play Publishing Console o Firebase libraries: Auth, Realtime Database, FireStore, GeoFire, and Analytics o Google Maps and Location Client Services o Support Library o Consuming Restful APIs using Volley and Retrofit o Permission Requests o Material Design o Proguard o Google Games Services: Sign-In, Achievements, and Leaderboards o Unit Testing o AdMob iOS Experience: o Swift o Map View o Game Center Sign-In, Achievements, and Leaderboards o Eureka o Sticker Packs Tech Experience: o Parsing JSON/XML o MVVM and MVC o Github VCS o CircleCI o Agile Methodologies o TFS/Trello Kanban Boards o Freshdesk o LibGDX Framework o Tiled Level Editor o Davinci Resolve, Adobe Premiere Pro, Adobe Photoshop, and Gimp

Swift
English
Email Etiquette
Technical Support
Mobile UI Design
Mobile App Testing
iOS Development
Java
Kotlin
Android App Development
$50 hourly
- 4.9/5
- (14 jobs)
I am Delaware-based Mobile development expert. I have done a lot of successful projects as iOS & Android developer for the last 7 years. I have worked with many startups, mid-scale, and enterprise clients and provided them with the best return on their investment. Along with that, I also have extensive experience with ✳️ Java, Kotlin, Swift, and Flutter Languages. ✳️ AWS Services like Cognito, IAM, Lambda, API Gateway, Dynamo DB, etc. ✳️ Serverless Architecture Design & Product Development ✳️ Firebase Integration for Real-time Database, Notifications and data storage My goal is to make demanded and highly-rated projects. I have enough experience and can work hard to achieve it. Also, I provide service after projects completion. Strengths and Skills:- ✔️ iOS: Swift & Objective C ✔️ Android: Java & Kotlin ✔️ AWS, Firebase, PlayFab, Photon. ✔️ Monetization SDKs. ✔️ Google Maps Integration in iOS and Android! ✔️ Deliver on Time, the best quality work! ✔️Expert in Git & BitBucket ✔️Project Management tools: Jira, Asana, Basecamp, Trello All ears to hear your ideas and I can help you build the Solution/Product you are looking for. Best!!

Swift
Mobile Game Development
Game Development
Web Development
UX & UI Design
SwiftUI
AWS Development
Cloud Services
Xamarin
Java
React Native
Flutter
Kotlin
Augmented Reality
Android
$100 hourly
- 5.0/5
- (12 jobs)
Hello! I’m Charlie, your expert for full stack development & analytics across mobile/web applications. 💎 “Any team would be lucky to have Charlie, and those he mentors will benefit from his exceptional leadership” Steven W - Full Stack Backend Engineer I bring a niche combination of technical expertise and startup guidance with a background as a software engineer and an MBA making me a great asset for any team. ★ CS/MBA ★ 20+ Applications ★ 1+ Million Shares (Unicorn Swag) ★ 20K WAU Techstars (Tripcents) ★ 10+ Years Experience in software development ★ Mindpaint: AI powered coloring pages behind a Stripe paywall. ★The Code Store: AI Boosted developer marketplace for monetizing packages. ★Forgeworks: AI Driven SaaS toolkit for revenue operations. ★MERN Architecture: Scalable multi-tenant applications. ★Backend: MongoDB preference. ★SDLC + Analytics 📝 Reviews: “Charlie developed an amazing application used by thousands of users. As a hands-on CTO, he mentored and hired additional developers while leading development himself. Charlie is not only a great developer but also an excellent teammate.” — Brantley P, VP of GTM, Events (formerly Hopin) “If I was picking a programmer to head my development team, Charlie would easily be my number one pick. A pleasure to work with, a pleasure to learn from and a pleasure to be around. Expert is an understatement when describing Charlie's skillset. Charlie has a knack for knowing the right time and right way to explain just about anything relating to code. Frontend, backend, side-end, doesn't matter, this is the guy that will point you in the right direction. I'm honored to worked beside this gentleman.” — Stanley M, Software Engineer, Designer & Author “Charlie is a great example of what a leader should be. He’s very knowledgeable, passionate, and dedicated to his craft in a way that’s unique to those who truly love what they do. I learned a lot from working with Charlie, which has empowered me to seek further career growth and refine my work. Any team would be lucky to have Charlie, and those he mentors will benefit from his exceptional leadership.” — Steven W, Full Stack Backend Engineer, 12+ Years of Professional Experience "Charles is the real deal. Our second contract went just as smooth as the first. His expertise in ios development and commitment was above and beyond my expectations. Each time we work together he brings new ideas to the table. His code and work ethic is unmatched. If your looking for someone who knows there stuff, is fair and easy to communicate with look no further. Highly recommend." - Tanner H, Upwork “Charlie has been a great CTO and engineer, comfortable digging in anywhere in the tech stack. I highly recommend having him lead your project to bring it to life or join your existing team to bring on some experienced engineering.” — Eli Z, Full Stack Web Developer, 8+ Years of Professional Experience “It's always a pleasure working with Charlie. Charlie is an experienced iOS developer and CTO. Not only does Charlie have the technical skills, but he also has an eye for recording talented developers and building strong teams. I look forward to continuing to work with him on current and future projects.” — Adrian O, Full Stack Web and Systems Architecture Specialist, 10+ Years of Professional Experience

Swift
Node.js
JavaScript
React
Web Development
iOS Development
$70 hourly
- 5.0/5
- (40 jobs)
Over 2500 billed hours | 100% Job Success Expert Mobile App Developer | iOS & Flutter | B.S. in Computer Programming (GCU) READY TO TURN YOUR APP IDEA INTO A LIVE PRODUCT? 🚀 App MVP Development ⏰ Daily updates 🔥 Firebase | SwiftUI | Flutter 🎓 B.S. in Computer Programming 📱 Mobile app workshops ✏️ Complex mobile UIs 💯 100% Job Success 🇺🇸 Fluent English "All the way to the App Store, his experience and expertise in iOS development allowed him to see and develop for the bigger picture... I’ve had some bad experiences with other devs but he gave me faith in the freelancers realm" Daquan (Featrrr App) ⭐️⭐️⭐️⭐️⭐️ "Josh communicated everything well, made himself available whenever I needed him with any questions or queries. Everything was completed to the highest possible standard and met every single requirement." Mitch (EIHLFL App) ⭐️⭐️⭐️⭐️⭐️ "Josh was friendly, professional and offered excellent advice. I started the contract with a smaller implementation and kept Josh on to complete the entire project. He has great attention to detail and I'm incredibly happy with the final product." Ruby (Good Chat App) ⭐️⭐️⭐️⭐️⭐️ A bit more about me 😉 I am experienced for the entire app lifecycle from idea creation, project planning, prototyping, MVP development, debugging, and releasing on the App Store. I communicate extensively and strive to be available for any calls, meetings, or consultations. Feel absolutely free to talk to me about your next sick project 🤙 I try to handpick app/design projects that are interesting and fit my skills well OR challenge me to grow in a new skill! My favorite relationships are long-term relationships with clients. Any amount of time I get you though is perfect if you leave absolutely satisfied! 🌟 Bests 🍻

Swift
Location-Based Service
High Fidelity Design
App Feature Development
API Integration
iPad App Development
App Development
Back-End Development
Front-End Development
Full-Stack Development
Android App Development
Firebase
Flutter
Mobile App Development
iOS Development
$70 hourly
- 5.0/5
- (11 jobs)
👋 Hey there! 🚀 I am a seasoned Full-Stack and Mobile App Development Lead with a rich history of working in 📱 Mobile App Development, 🤖 Machine Learning, 📊 Data Analytics, and 🚗 Autonomous Driving space. 👨‍💻 Currently, I lead a team of iOS, Android, and Full-Stack engineers who love developing top-notch apps. Working together, we deliver results that exceed expectations while ensuring projects are completed on time and on budget. 👨‍🔬 My area of expertise is in the design and development of robust, scalable, and high-performance mobile applications using modern technologies and frameworks. Additionally, I have experience in integrating 🤖 machine learning and 📊 data analytics into mobile apps to provide personalized and intelligent experiences to end users. 🚗 Furthermore, I have a deep understanding of autonomous driving systems. I have contributed to the development of several sensor models, including a deep learning-based camera model for computer vision. In addition, I have experience developing algorithms and software for LiDAR-based perception. 💼 In summary, if you are looking for a Full-Stack and Mobile App Development Lead with a track record of delivering high-quality solutions, I am the right fit for your project. I am committed to ensuring that your project is a success, and I look forward to the opportunity to work with you.

Swift
RESTful API
Mobile App Development
Python
Kotlin
iOS
React Native
Android
MongoDB
Amazon Web Services
Flutter
React
Node.js
$75 hourly
- 5.0/5
- (29 jobs)
I am the founder of Create Neptune, a software and game development studio focusing on creating fun, user-focused, and beautiful apps and games for mobile (iOS / Android), web, PC, and consoles. Our developers and designers have worked on franchises like Scrabble and The Sims, and with companies like Mattel, EA, 2K Games, Estée Lauder, The New York Times, AppLovin (Lion Studios), and Boombit. I have led app development projects from the concept phase to post-launch marketing, and I am an expert in all stages of the application and game development life cycle. I am particularly attuned to the commercial side of application and game development: I was previously a hedge fund analyst focusing on the energy and power sector, and a mathematics, economics, and finance instructor. At Create Neptune I have published dozens of mobile games, with our most successful app Paddle Clash reaching millions of users worldwide since publication in mid-2020 and maintaining a 4.9 / 5.0 globally and 4.7 / 5.0 in the US on the App Store. Aside from our published portfolio, I have concepted, prototyped, and built dozens of other 2D and 3D games for a variety of clients, from Fortune 500 mega-caps to bootstrapped startups. I have almost a decade of game and app development. I typically work in Unity (C#), but I have also worked on successful native apps for iOS (Xcode, Swift) as well (Pandamonium, iOS, 4.7 / 5.0 on App Store). I have worked on numerous apps from the concept and prototype phases to post-launch marketing, so I can be with you every step of the way in the creative process. Specifically, in addition to coding, I can provide concept and prototype work, professional-quality UI and UX, 2D and 3D artwork, and marketing services. Lastly, I am very familiar with the post-launch app marketing process and publishing process on both the App Store and Google Play, and I would be happy to help you and your team with my experience. I began my career in finance as a mergers and acquisitions investment banker and an energy and power analyst at a distressed debt fund, completing the largest leveraged buyout in fund history and managing a book of $1.3 bn of energy and power assets. I have also worked as a mathematics and economics instructor, designing several advanced mathematics and financial analysis courses.

Swift
Bug Fix
JavaScript
HTML5
C#
Android
Company Valuation
Mobile UI Design
Mobile App Design
Financial Modeling
Mobile App Development
Financial Analysis
$40 hourly
- 5.0/5
- (14 jobs)
Hi, I'm Oliver, and I have spent the past 5 years building mobile and web applications for startups and small businesses. I can take your wireframes and transform them into a full-fledged app you can put before real users in just weeks. With my fully custom, user-friendly, designs and my quick, scalable backend architectures, I will make your visions a reality. I am a student of computer science at Colorado College and I spend my free time writing code. I specialize in native iOS development and full-stack web development with a broad range of skills across many different languages and frameworks. I love working with new technologies and tackling tricky problems! I am especially interested in developing open-source projects that can make a difference in the world. Let's talk about your project! Here are the skill sets I have: IOS DEVELOPMENT:- Swift SwiftUI Spotify SDK Google Admob Revenue Cat Firebase Mapkit Healthkit AVFoundation WEB DEVELOPMENT:- HTML Javascript CSS React Next js Node js jQuery tailwindcss Spotify API Prism Flask Stripe Sendgrid Next Auth Cloud: - Lambda Functions Elastic Beanstalk Eventbridge Firebase CouchDb MonogoDb CosmosDb Api: - Express Flask SQL Next js Web3: - Solidity Wagmi IPFS Sign-In With Ethereum

Swift
Next.js
Full-Stack Development
Spotify
CSS
Web Application
HTML
Back-End Development
Apple Xcode
iOS Development
Java
JavaScript
Python
React
Firebase
$60 hourly
- 5.0/5
- (12 jobs)
Experienced Full Stack developer helping small businesses and startups develop custom apps. I have developed from the ground up and published several apps to the app store which have a lot of 5 stars. Pre-launch support: • Backend API development and integration • Frontend development • Testing and Quality Assurance • App Store Submission and Approval Post-launch support: • Maintenance/Bug Fixing • Further Extensions Areas of Expertise: • Swift, Objective-C, React Native, React.js, Typescript, Flutter, Dart, C#, Xamarin, Python, Django, Node.js/Express, Angular, .NET Cloud services: • Firebase, Crashlytics, AWS Misc: • Jira, Git, Slack, TestFlight, AppStore Contact me if you're working on any interesting projects! I consult people for FREE and would be happy to help you if you have any questions about your project or idea! Cheers!

Swift
C#
Dart
Flutter
Shopify
Kotlin
TypeScript
React Native
Firebase
Objective-C
Java
Mobile App Development
React
$40 hourly
- 5.0/5
- (16 jobs)
I specialize in JavaScript, PHP, Dart, Kotlin, and Swift. I thrive on developing Web/API/Mobile applications from the ground up, with a recent focus on crafting and integrating POS systems with major platforms such as Square, Clover, Heartland, and Toast. Notable projects I've worked on include: * Food ordering websites and mobile applications integrated with Square/Clover * Rewards system integrated with POS * Booking/Scheduling Systems * E-commerce websites * Messaging/Calling mobile applications * Music mobile application for Android and IOS. * IPTV player for mobile and TVs My preferred frameworks are: * React * Flutter * NextJs * ReactNative * Laravel

Swift
Next.js
CRM Development
API Development
Scheduling Software
Booking Website
Point of Sale & Payment Systems
Mobile App Development
Kotlin
MySQL
MongoDB
Firebase
React
Laravel
API Integration
$150 hourly
- 4.9/5
- (26 jobs)
Vardhan Agrawal has over 7 years of experience with iOS development and UI/UX design. He is also the author of Mastering Machine Learning with Core ML and Python and the founder of TheOpenCode Foundation, through which he aspires to bridge the digital divide. Not only does he tinker with new projects and ideas, but he also makes it possible for others to do the same by teaching others to code. Vardhan is a part of the tutorials team at raywenderlich.com, Envato Tuts, Heartbeat by Fritz, and freeCodeCamp.

Swift
iOS
Mockup
High Fidelity Design
Apple Xcode
AV Foundation
ARKit
iOS Development
Sketch
App Design
User Interface Design
iOS SDK
Core ML
$35 hourly
- 5.0/5
- (6 jobs)
Hello there, Thank you for landing on my profile and for devoting your valuable time for my profile review. I have 10+ years of experience with web as well as mobile app development. Coding is my passion and I am living my passion every day, every line of code helping me to push the boundaries of my knowledge and experience. Also, I have tried my hands on the UI/UX and have substantial experience with the user-interface because the user-interface of any app is just like the reception which should be attractive and engaging at the same time. I strongly follow the steps of "Software Development Life Cycle (SDLC)" and everything will be developed under the fence of SDLC such as: ➥ System analysis and development plan ➥ Wire framing and app screen designs (UI/UX) ➥ Mobile app programming (Native and Cross-platform both) ➥ Backend + Database development ➥ Full app testing/QA ➥ Best release and feedback from client-side and other sources ➥ Final deployment on the app store ☛ I am proficient with the following technologies: ------------------------------------------------------------- ⇨ UI/UX: Photoshop, Sketch, and Illustrator ⇨ Cross-platform app development: React Native + JavaScript/TypeScript, Flutter ⇨ iOS App Development: Swift, Objective-c, Xcode, iOS SDK ⇨ Android app development: Java, Kotlin, Android Studio & Android Developer Tools and Android SDK ⇨ Backend development: LAMP (Linux, Apache, MySQL, PHP) or MEAN (MongoDB, ExpressJS, AngularJS, Node.JS, ), J2EE, Micro-services, Spring boot), Python, Django and Flask Python Frameworks I always understand the problems of the clients and execute them accordingly in real-time with the best way to solve it with high quality and strong mathematical and system control knowledge. Thank you for taking the time to go through my profile.

Swift
API Development
J2EE
Spring Boot
Oracle
Laravel
iOS Development
Angular
Kotlin
PHP
Node.js
Objective-C
Android App Development
Flutter
$40 hourly
- 4.7/5
- (5 jobs)
Hello! I am a software engineer with 5 years of experience in software development. I have great experience working on the front-end, backend, and mobile. I have worked in the areas of social networks, finance, and e-commerce as a full-stack and mobile developer. I love startups and have previously been a co-founder & CTO at one, as well as a founding engineer at a Silicon Valley startup. I have extensive knowledge in the following programming languages / tools: React, React Native, Typescript, Python, Java, Firebase, Swift and NodeJS. I enjoy learning about new technologies and am open to picking up any new technologies that are needed. I'm extremely diligent and will do whatever it takes to get things done in a timely matter.

Swift
Angular
Firebase
JavaScript
Python
Node.js
Java
iOS
React
TypeScript
Flutter
React Native
CSS
Odoo Development
HTML
$60 hourly
- 5.0/5
- (9 jobs)
Erik is a senior-level software developer and award-winning former journalist whose unique background has allowed him to infuse strong communication and marketing skills into the creation of cutting-edge mobile and web applications. Erik spent 15 years as a reporter and editor at major newspapers such as the Atlanta Journal-Constitution and The Dallas Morning News before switching to a career in engineering. A specialist in mobile apps, Erik has worked on dozens of projects and has authored works presently in the App Store for iOS and Google Play Store for Android. His code has been featured in a wide range of apps, including those used by millions on a daily basis down to new products for small indie startups.

Swift
iOS
iOS Development
WordPress
Data Recovery
Web Development
Mobile App
Web Application
NodeJS Framework
Back-End Development
Database Development
Java
Android App Development
Objective-C
$75 hourly
- 5.0/5
- (7 jobs)
SUMMARY Senior web developer with bachelor of science, attended master of science, and 8 years of experience as a web developer. Proven expertise in building websites and backend along with databases. Solid experience with leading features and mentoring team members.

Swift
React Native
Java
Golang
Python
Google Cloud Platform
Redux
PostgreSQL
GraphQL
Vue.js
Angular
Node.js
TypeScript
React
JavaScript
$75 hourly
- 5.0/5
- (3 jobs)
I'm a Senior Mobile Developer with comprehensive full-stack proficiency in iOS, Android, tvOS, and various cross-platform technologies. I have over 12 years of experience including designing complex financial trading systems as well as crafting user-friendly mobile apps tailored for the end-user. I'm not just driven by technology; I'm passionate about it. With a keen eye for detail and a passion for innovation, I love the process of turning ideas into realities. Here's a snapshot of my tech palette: • 10+ years as a dedicated mobile developer & architect. • Mastery over Native App Development: iOS, Android, tvOS, and RokuTV. • iOS proficiency with Swift, SwiftUI, Objective-C, and its variations. • Familiar with Kotlin components such as Activity, Intents, Coroutines, SQLite, and more. • Good understanding of Android OS, interactive apps, and memory optimization. • Extensive work with tools and APIs including Apple Push Notification, Google Cloud Messaging, MapKit, HealthKit, CoreLocation, GoogleMap, Android Pay, and many others. • Experienced with creating hybrid web apps using iOS web views. • Hands-on experience with several design patterns: MVVM, MVP, and MVC. • Keen eye for neat and tidy UI/UX design. • Unit Testing and TDD approach. • Familiarity with Git. • Devotion to continuous learning in the tech landscape. • Architecture and agile proficiency. • Team spirit, especially with diverse and global teams. • Clear communicator with a collaborative essence. Additionally, with 5 years under my belt in Cross-Platform Application using Flutter, React Native. I'm well-versed in optimizing widgets, components, and state management. My passion lies in embracing novel challenges and staying in sync with the dynamic tech evolution.

Swift
SwiftUI
Firebase
Amazon Web Services
Flutter
Node.js
Python
React Native
SceneKit
TVMLKit
tvOS
UIKit
Java
Kotlin
Objective-C
$80 hourly
- 5.0/5
- (2 jobs)
I'm a seasoned mobile app developer with a passion for creating innovative and user-friendly mobile applications. With over 10 years of experience in the industry, I've had the privilege of working on a diverse range of projects, from small startups to large enterprises. My goal is to help you turn your app idea into a reality and ensure it stands out in the competitive app market. Key Skills: - Mobile Platforms: iOS (Swift), Android (Java/Kotlin) - Cross-Platform Development: React Native, Flutter - UI/UX Design: Wireframing, Prototyping, User-Centered Design - Backend Integration: RESTful APIs, Firebase, AWS - Database Management: SQLite, MySQL, MongoDB - Version Control: Git/GitHub - Testing and Debugging: Unit Testing, UI Testing - App Deployment: App Store, Google Play, TestFlight - Continuous Integration: Jenkins, Travis CI Let's Discuss Your Project: Whether you have a detailed project plan or just a rough concept, I'm here to help. Let's discuss your ideas, goals, and requirements to turn your mobile app dream into a reality. Feel free to reach out, and I'll be happy to provide a free consultation and quote for your project.

Swift
Back-End Development
Front-End Development
API Integration
iOS Development
Android App Development
Mobile App Development
Firebase
Flutter
React Native
Kotlin
Java
$40 hourly
- 5.0/5
- (4 jobs)
Hi, I'm Raheel, a Comprehensive Web/Mobile App Developer and Senior UX/UI Designer 🚀 With over 8+ years of experience, I excel in crafting exceptional Web and mobile applications across React, Vue, Node, Laravel, iOS, Android, Flutter, React Native, Machine Learning, NLP, and more. From concept to ongoing support, I'm your all-in-one solution. 🎨 UI/UX Expertise: ✔️ Professional UI/UX Designer with 6+ years working with global brands. 🔹 Tools: • Figma, Invision, Adobe XD, Photoshop, Illustrator 🔹 Mobile Expertise: ✔️ Native & Hybrid App Development ✔️ iOS: Swift, Objective-C ✔️ Android: Kotlin, Java ✔️ Cross-Platform: Flutter , React Native ✔️ AI: Machine Learning, NLP, TensorFlow 🔹 Web Expertise: ✅ Frontend: React.js, Next.js, Vue.js, Tailwind CSS, TypeScript, HTML, CSS ✅ Backend: Express.js, Node/Nest.js, GraphQL API, Laravel ✅ Database: MySQL, PostgreSQL, MongoDB ✅ DevOps: GCP, AWS, Azure, S3, EC2, Lambda, Docker, Kubernetes, DynamoDB 🔹 Impactful Designs: ✨ Enabled products to generate 10M+ revenue ✨ Impacted 1M+ users across USA, Australia & Middle-east ✨ Elevated product experience leading to acquisitions 🔹 Additional Services: ▪️ Brand identity, Logo, Illustrations, Animation 🔹 Key Features & Services: ✔️ In-App Purchases ✔️ User Profile Creation ✔️ Voice Recognition (AI) ✔️ Multi-factor Authentication ✔️ Google Map & AWS Integration ✔️ AI-enhanced Chat and Messaging ✔️ API & FCM Integration ✔️ Analytics & Feedback Collection ✔️ Push Notifications (FCM, GCM, AWS) ✔️ Crashlytics & Google Play Services 🔹 Toolset Mastery: • Xcode, Android Studio, Sketch, Adobe, InVision, Jira, Trello, Asana, Slack, BitBucket, GitHub 🔹 Management Excellence: Agile, SCRUM, TDD, CI, AI Analytics I follow Agile, SCRUM, TDD, CI practices to ensure your project exceeds expectations. Variable sprint durations and daily SCRUMs guarantee a flawless workflow. 📩 Contact me via Upwork for mobile app development, enhancements, bug fixes, and more! Best Regards, Raheel A. 𝐊𝐄𝐘𝐖𝐎𝐑𝐃: UI/UX Design | Figma | Sketch | Adobe XD | Responsive Design | Wireframing | Prototyping | Visual Design | Mobile App Design | Web Design iOS Development | Swift | SwiftUI | Objective-C | Xcode | UIKit | HealthKit | Core Data Android Development | Kotlin | Java | API Integration | Firebase | API Development | RESTful APIs Cross-Platform Apps | Flutter | React Native | Backend Integration | User Authentication | Payment Gateway Integration OpenAI | Chatbot | AR/VR Mobile Apps | Interface Builder, App Store Connect, Cocoa Touch, App Extensions

Swift
Android App Development
Web Development
Nuxt.js
Next.js
Vue.js
Laravel
Node.js
React
Objective-C
Java
Kotlin
Flutter
React Native
UI/UX Prototyping
$55 hourly
- 5.0/5
- (3 jobs)
I’m an iOS developer experienced in building iOS apps for small and medium-sized businesses. - Knows Objective-C and Swift, UIkit and SwiftUI - Full app development from start to finish - Regular communication is important to me, so let's keep in touch.

Swift
Git
SwiftUI
GitHub
Objective-C
iOS
$60 hourly
- 5.0/5
- (3 jobs)
Greetings! I'm Ryan, a seasoned software engineer with a proven track record in the computer software industry. With over 12 years of expertise, I specialize in the development of robust mobile applications. I am a proficient mobile app developer, skilled in Swift, React Native, and Flutter. As a backend developer, I am well-versed in Node.js, PHP, and Python. My capabilities extend to both relational and non-relational databases, statistical data analysis, machine learning algorithms, and AR. Furthermore, I bring substantial experience with Firebase, AWS, social authentication, payment gateways, third-party packages, maps, APIs, animations, and state management in Flutter, including Provider, BLoC, and GetX. 1. Native Development - Swift / Objective-C - iOS/macOS/tvOS/watchOS - UIKit, MapKit - Kotlin/Java - Apple Pay, In-app purchase, Siri, iBeacon - Web Services (RESTful APIs) - Material Design - Firebase, CloudKit, Coredata 2. Cross-Platform and Hybrid App Development - React Native/React - Flutter / Dart - Xamarin.iOS / Xamarin.Android / Xamarin.Forms As a leading mobile application developer, I am committed to crafting an intuitive, creative, and interactive mobile app that enhances engagement with your brand.

Swift
Python
Node.js
Xamarin
Kotlin
Java
Objective-C
UIKit
Firebase
React
iOS
Android
Dart
Flutter
React Native
$80 hourly
- 5.0/5
- (2 jobs)
As a seasoned Senior Mobile Developer with over a decade of experience in the fast-evolving mobile app development landscape, I have honed an extensive skill set across a wide array of technologies including React Native, Flutter, Swift, Java, Kotlin, and more. My career has been marked by a commitment to excellence, innovation, and a proactive approach to embracing new technologies and methodologies. Throughout my extensive career in mobile application development, I've consistently pushed the boundaries of what's possible, leveraging cutting-edge technologies and methodologies to deliver outstanding results. My key achievements reflect a blend of technical innovation, strategic leadership, and a deep commitment to user experience: - Revolutionized cross-platform app development by spearheading projects that seamlessly integrated cutting-edge features like real-time messaging, payment integrations, and augmented reality, resulting in a 40% increase in user engagement and opening new revenue streams. - Transformed application performance through targeted optimizations, achieving a 30% reduction in load times and a 50% enhancement in responsiveness, which significantly improved user retention rates and app ratings. - Elevated code quality and reliability by leading the implementation of comprehensive unit and UI testing frameworks, achieving over 90% coverage and drastically reducing post-launch bugs and user-reported issues. - Accelerated development cycles and improved efficiency by pioneering the adoption of CI/CD pipelines and Agile practices, reducing time-to-market by 25% and fostering a culture of continuous improvement and innovation within the development teams. - Drove collaborative success with cross-functional teams, playing a pivotal role in the ideation, design, and launch of feature-rich applications. My leadership in adopting and advocating for modern architectural patterns and programming paradigms such as MVP, MVVM, and reactive programming significantly enhanced project scalability and maintainability. My approach to mobile development is user-centric and data-driven, focusing on creating seamless, intuitive, and innovative applications that meet and exceed user needs. With a proven track record of success, I am passionate about leveraging my skills to tackle new challenges and contribute to the success of dynamic, forward-thinking teams.

Swift
Firebase
Mobile App Development
Android
iOS
Dart
FlutterFlow
Kotlin
Java
Flutter
React Native
$66 hourly
- 5.0/5
- (3 jobs)
With over a decade of expertise in iOS/Android Mobile App development, I bring a wealth of experience to the table. Specializing in crafting applications for both iOS and Android platforms, I excel in delivering diverse projects such as Social Networking, Booking, Fitness, Shopping, and Gaming applications, among others. Here are my Core Skills & Experiences: - Native Frameworks: iOS (RX-Swift, Swift, Swift UI, Objective C), Android (Kotlin, Java) - Hybrid Frameworks: React Native (JavaScript, TypeScript), Flutter (Dart) - Back-End: Laravel, Drupal, Node.js, Meteor, ExpressJS, Django - Unit Testing: Jest, Mocha, Enzyme - Databases: MongoDB, Redis, MySQL, PostgreSQL, Google Firebase, AWS, Firebase - Software & Project Management: Git, GitHub, GitLab, Bitbucket, SVN, Trello, Asana - IDE: Apple Xcode, Android Studio, WebStorm, VScode - Tools: Node.js, Yarn, Expo, Performance Debugging I am eager to discuss your projects, ideas, and how we can collaborate to ensure success. Please feel free to reach out with any questions you may have. Thank you for considering my services. Warm regards, Victor.

Swift
Node.js
Laravel
Dart
Flutter
TypeScript
JavaScript
React Native
Kotlin
Java
Android App Development
Objective-C
SwiftUI
iOS Development
Mobile App Development
$40 hourly
- 5.0/5
- (9 jobs)
In 2018, when I was in high school, I wrote my first iPhone app, which was a local online marketplace for students of my school. Ever since, iOS development has been a passion of mine, which I've maintained throughout my study at the University of Chicago from where I graduated in 2023 with a degree in economics and computer science. Throughout my college career, I've published multiple apps to the App Store, held an iOS engineering internship at OpenSea, worked as a technical consultant, and led iOS development for an LLM chess coach startup. I have experience with multiple generations of the iOS tech stack including Obj-C, Swift, UIKit, and SwiftUI, and I consider myself an expert in native iOS solutions. In addition to software engineering, I would be happy to assist you with any step along the route of delivering a successful iOS application, from creating a functional specification document to UI/UX design to publishing and promoting your app on the App Store. In delivering quality software I focus on two high-level objectives: 1) Guaranteeing a seamless experience for the end-user. Because even slight malfunctions can lead to tanked ratings 2) Creating a highly maintainable code base. Because I want to ensure that my work maintains its value over time, as your app grows and evolves To achieve these, I make clean architecture paramount in my approach to any software project. Good architecture leads to modular, composable code, which lends itself to rigorous testing, and as a result, is much less likely to break. Moreover, it makes work straightforward and efficient in the present and future. SKILLS: Architecture: MVC, MVVM, MVVM + Coordinator, VIPER, Redux, dependency injection Languages: Swift, Obj-C, C, C#, Python, JavaScript iOS Frameworks: SwiftUI, UIKit, Foundation, Core Data, Combine, StoreKit, AVFoundation, Core Location, MapKit, HealthKit, SnapKit Firebase: Authentication, App Check, Cloud Firestore, Cloud Functions, Emulator Suite Testing: XCTest (unit tests and snapshot tests), ViewInspector, mocking Technologies: GCD, Swift 5.5 concurrency, ARC, Xcode, Git, Unix

Swift
Payment Processing
App Store Upload
Reactive Programming
Clean Architecture
XCUITest
XCTest
Objective-C
StoreKit
Core Data
Firebase Cloud Firestore
Firebase
UIKit
SwiftUI
iOS Development
$40 hourly
- 5.0/5
- (5 jobs)
I develop high-performance, scalable mobile apps designed to streamline your business processes and give you a competitive edge in the mobile-first world. Transform your startup or entrepreneurial vision into robust mobile applications, from initial app idea validation through MVP design and full-scope mobile app development. Specializing in UX/UI design and custom iOS and Android mobile applications, I offer strategic technical consulting to ensure your mobile app project is not only viable but primed for success, minimizing technical debt and enhancing user engagement. ✨ 𝗪𝗵𝘆 𝗣𝗮𝗿𝘁𝗻𝗲𝗿 𝗪𝗶𝘁𝗵 𝗠𝗲: 𝗖𝘂𝘀𝘁𝗼𝗺 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: From MVPs to full-scale enterprise apps, I deliver high-quality, feature-rich products. 𝗦𝘂𝗽𝗲𝗿𝗶𝗼𝗿 𝗔𝗽𝗽 𝗗𝗲𝘀𝗶𝗴𝗻: My commitment to excellent mobile app design ensures a seamless user experience with a focus on UI/UX principles. 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Whether it’s a single-feature MVP or a full-scope project, I build MVPs that effectively validate your business concept and prepare it for wider market introduction. 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: I handle all stages of the app development process, ensuring timely delivery and alignment with your business goals. 𝗢𝗻𝗴𝗼𝗶𝗻𝗴 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 𝗮𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: I provide continuous maintenance and updates to enhance functionality and address the evolving needs of your business. 🤝𝗪𝗛𝗔𝗧'𝗦 𝗧𝗛𝗘 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣? Send me a message or invite me to your job on Upwork and let’s make your app the next big thing in the market!

Swift
User Authentication
React Native
Dart
JavaScript
Kotlin
Firebase
Java
iOS Development
Flutter
Smartphone
Android App Development
iOS
Mobile App Development
Android
$65 hourly
- 5.0/5
- (3 jobs)
As a mobile app developer, I'm driven to create innovative applications that not only leverage my expertise in Swift, Java, React Native, and Flutter, but also serve a greater purpose. Whether it's by incorporating user-friendly design elements or by ensuring accessibility for communities with limited technological resources, I strive to create meaningful mobile experiences for everyone. My technical proficiency is constantly evolving, and I'm a firm believer in the power of collaboration to build truly impactful mobile experiences. I'm a lifelong learner, constantly seeking new ways to utilize technology to create positive change.

Swift
Laravel
Node.js
Kotlin
Java
Amazon Web Services
Firebase
REST API
Apple Xcode
Flutter
Expo.io
React Native
SwiftUI
Mobile App
$70 hourly
- 5.0/5
- (3 jobs)
I am a Full Stack Developer who has been developing websites and mobile applications for 10+ years. I freelance full-time and am always available during normal business hours across all US time zones. I’ve worked on a UI analytics dashboard for some Fortune 500 companies that had their own component design system. I used GraphQL to query data from their New Relic and Github accounts, React/React Native/NextJS, VueJS for the Frontend, Laravel/Drupal, NodeJS/NuxtJS for the Backend, and Tailwind CSS for styling. Also, I have extensive experience in AI, machine learning, and ChatGPT. I have developed and deployed ChatGPT 4 models for customer service and marketing applications, trained ChatGPT 3 and ChatGPT 4 models on large datasets of text and code, and improved the safety and reliability of ChatGPT models by incorporating human feedback and reward models. I have also presented ChatGPT research at top AI conferences and published in peer-reviewed journals. I specialize in Python for web development, data analysis, web scraping, API integration, and backend logic. My expertise includes writing algorithms, creating Django/Flask web applications, developing React/Angular applications, building desktop applications, and implementing automated bot scripts using Python. Frontend development: - HTML5, CSS3, PHP, JavaScript, ES6, TypeScript - React, Angular, React Native, Redux, Redux-Thunk, Saga, React Hook, NextJS - VueJS, Vuex - Bootstrap, Material UI, Tailwind CSS Backend development: - Node, Express, NestJS, NuxtJS - C#, ASP.NET, ASP.NET Core - Laravel, Drupal, Codeigniter - Python, Django, PyTorch - GraphQL Data Engineering: - Data Analysis, Data Scraping - Web Scraping ML/DL model development: - Machine Learning, Deep Learning, Natural Language Processing - ChatGPT, ChatBot - Open AI, Computer Vision - GAN, TensorFlow Web & Mobile UI/UX Design: - Figma, MockFlow, - UXPin, UIKit, UX/UI prototyping - Adobe Illustrator, Adobe XD, Canva Database management: - MongoDB, MySQL, PostgresDB, Firebase, Dynamodb DevOps & CI/CD: - Travis CI, Jenkin, Fastlane, CircleCI, Docker, Kubernetes Deployment / Infrastructure: - AWS, Azure, GCP, Heroku, DigitalOcean

Swift
GIS
Mapbox
Database Development
Artificial Intelligence
ASP.NET
C#
React Native
Django
Python
TypeScript
PHP
Next.js
Node.js
React
$60 hourly
- 5.0/5
- (1 job)
I leverage vast industry experience to tailor solutions for businesses of all sizes. My expertise includes web and mobile application technologies such as Angular, React, Vue.js, .NET, PHP, Python, and Flutter for hybrid mobile app development. I excel in implementing DevOps services for streamlined and optimized development. 💪Technical Skills:💪 💻Front-end technologies:💻 - React, Next.js, Redux, JavaScript, Tailwind CSS, Material UI, Ant Design, Bootstrap, Storybook for styling, Jest. - TypeScript, Angular, RxJS, NgRx, Karma, Angular Material for dynamic web apps. - Vue.js: Vue.js, Vuex, Vuetify for responsive front end, Quasar Framework, Vue CLI, Vue Dev Tools for efficient development. ⚙Back-end technologies:⚙ - Node.js, Express.js, TypeScript, RESTful API - Python, Django, Flask, CherryPy, Fast API, Swagger API - C#, ASP.NET, .NET Core, Blazor, VB.net, WPF, Winforms, ASP.NET MVC, Sonarlint, Sonarqube, Xunit. - Java, Spring, Hibernate, Struts, Spark, JAX-RS, Apache Wicket, JUnit, Mockito, TestNG. - PHP, Laravel, CodeIgniter, Magento, WordPress, Zend Framework, PHPUnit. 💳EDI (Electronic Data Interchange):💳 I employ standard formats like ANSI X12, TRADACOMS, EDIFACT, ODETTE, and RosettaNet to streamline operations by reducing manual data entry, errors, and costs. This enables faster decision-making, bolstering supply chain management, and ensuring data accuracy while adhering to compliance standards, scalability, and sustainability. 📚Database Expertise:📚 I have proficiency in various databases, including MySQL, MongoDB, MS SQL, PostgreSQL, MariaDB, and SQLite. 📳Mobile App Development:📳 - React Native, Swift, Bubble.io, Flutter: Dart, Android & iOS, Firebase, push notifications, in-app purchases, maps, API integration for data retrieval and synchronization. Experience in various state management approaches in Flutter, such as Provider, Bloc, Redux, and Riverpod. 🏬Salesforce:🏬 Proficient in Salesforce CRM with Apex, Visualforce, and Lightning Web Components (LWC). Specialized in fresh implementations, Sales/Service process automation, Reporting, and Customer/Partner Portals setup. Customized Salesforce with Flows, Apex, LWC, Triggers, and Classes for unique needs. Generated valuable insights through Sales Reports, Service Desk KPIs, Forecasting, Pipeline reports, Lead/Opportunity Funnel, SLAs, and custom reports. 👩‍🏫QA Services:👩‍🏫 Over a decade in software testing, specializing in manual, automation, and load testing. Key Tools: Selenium, Appium, JMeter, Cucumber, Cypress, Jasmine, Mocha. Testing Scope includes Mobile/Web App Testing (manual, JAVA, Selenium, Appium), Load & Performance Testing (JMeter, LoadRunner), Accessibility Testing, Backend Database & API Testing (SQL, Postman, SoapUI), Front End Testing (Selenium WebDriver), Cross-Browser/Device testing (Browser Stack). QA Documentation includes Test Plan, Strategy, Cases, Bug Reports, RTM. Process Expertise: Strong grasp of SDLC, STLC, Agile/SCRUM. Version Control: Git, GitHub. Project Tracking and Collaboration: JIRA, Confluence. 🎡DevOps:🎡 Cloud setup, infrastructure management, migration, and CI/CD processes. Proficient in AWS (Lambda, EC2, S3, Redshift, Sage Maker, Cognito) and Azure (Virtual Machines, Blob Storage, Azure AD, Data Factory). 🏆Domain Exposure:🏆 My experience spans diverse domains, including Insurance and Finance Portals, CRM and ERP Solutions, Healthcare, E-Learning, E-commerce, Travel, Real Estate, Logistics, and Supply Chain Solutions. Ready to discuss your project further? Click "Hire Me" or invite me today to explore how I can be a good fit for your needs! Thanks.

Swift
JavaScript
Webflow
Adobe XD
Figma
Android App Development
Mobile App Development
Kotlin
PHP
Stripe
Node.js
TypeScript
Flutter
React Native
React
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