Hire the best Kotlin Developers in California

Check out Kotlin Developers in California with the skills you need for your next job.
  • $56 hourly
    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
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    English
    Email Etiquette
    Technical Support
    Mobile UI Design
    Mobile App Testing
    Swift
    iOS Development
    Java
    Android App Development
  • $80 hourly
    As a passionate software developer based in California, I've always been drawn to the dynamic world of web and software development. My journey has led me to specialize in both coding and managing websites with WordPress, significantly expanding my portfolio. I thrive in environments that challenge my adaptability and problem-solving skills, whether working solo or collaborating with teams. I take pride in my ability to dive into complex projects, guiding them from conception to launch. My technical background is diverse, spanning the creation of large-scale applications designed for client interaction to implementing cutting-edge, open-source technologies that push the boundaries of innovation. Currently, I am focused on deepening my knowledge and skills in web development, data visualization, and game/engine development to enhance my visibility in the industry. My toolset includes Java, J2EE, Spring Technologies, and I'm equally proficient in frontend and backend development with technologies like PHP, Node.js, and modern frameworks such as React, Vue.js, and Angular. Effective communication is key to my workflow, ensuring clear and productive interactions with both technical and non-technical colleagues. I am naturally inquisitive and quick to adapt, always eager to explore new technologies and tackle the next challenge. My approach to projects is methodical and efficient, which allows me to exceed expectations and meet deadlines consistently. Areas of Expertise: Programming Languages: Java, J2EE, Spring: Deep expertise in building robust backend applications. PHP, Node.js: Skilled in dynamic server-side development. JavaScript (Angular, React, Vue.js): Proficient in creating interactive and responsive client-side interfaces. Python: Proficient in Python programming, emphasizing automation, data analysis, and backend solutions. Web Development: Skilled in a broad range of web development techniques and technologies, catering to both frontend and backend needs. Others: C, C++, RESTful and SOAP APIs, SQL, Hibernate, Maven, Gradle, Microservices. Web Development: WordPress: Advanced experience in developing and managing websites, enhancing user experience and site functionality. Full Stack Development: Comprehensive ability to handle both frontend visuals and backend functionality seamlessly. Soft Skills: Communication: Excel at articulating project goals and technical details clearly, ensuring all team members are aligned. Initiative and Agility: Motivated by new challenges, I approach projects with enthusiasm and a readiness to innovate. Time Management: My projects are not only completed within deadlines but also with a quality that often surpasses expectations. I'm excited about the future projects and opportunities that lie ahead, and I'm always looking for ways to contribute to and learn from the vibrant tech community here in California.
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    Amazon Web Services
    Web Application
    React
    Angular
    Node.js
    RESTful API
    C++
    Spring Boot
    J2EE
    SQL
    JavaScript
    Python
    Java
  • $80 hourly
    Over 10 years of experience in backend, mobile, desktop, and cross-platform development with a myriad of languages & platforms for major software companies in the bay area and around the world. Strong background in advanced algorithms, data structures & high-performance multithreading. Specialization in advanced build tooling including Bazel, Buck & Pants, and a leading Bazel community expert with proven expertise in porting many millions of lines of code to build & test with Bazel.
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    Buck
    Golang
    Build Automation
    Reactive Programming
    Android SDK
    iOS Development
    Java
    Scala
    Swift
    C++
  • $80 hourly
    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.
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    Firebase
    Mobile App Development
    Android
    iOS
    Dart
    FlutterFlow
    Java
    Flutter
    React Native
    Swift
  • $70 hourly
    With over 10 years of experience in mobile app development, I am a seasoned expert specializing in creating high-quality applications for both iOS and Android platforms. My expertise spans a diverse array of technologies, including Swift, SwiftUI, Objective-C, Java, Kotlin, and cross-platform frameworks such as Flutter, FlutterFlow, and React Native. I have had the privilege of contributing to significant projects, including the Vessel Health App, where I implemented AI-driven logic to predict users' daily health status and provided tailored food and workout recommendations. I also developed the Fedvan GPS tracking system, enhancing its real-time tracking capabilities. Additionally, I worked on the NSF app, where I implemented livestreaming features and improved overall app performance. From large-scale applications with extensive user bases to innovative indie projects, I bring a deep understanding of both mobile app development and design. My commitment to delivering exceptional results is matched by my dedication to fostering long-term client relationships. Whether you're looking to enhance an existing app or bring a new idea to life, I am here to provide the expertise and support needed to achieve your goals. Please feel free to reach out to discuss your mobile app development needs. I look forward to the opportunity to collaborate with you.
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    Google Maps API
    RESTful API
    SwiftUI
    Mobile App Development
    Android App Development
    Native App Development
    Firebase
    Android
    iOS
    React Native
    Flutter
    Java
    Objective-C
    Swift
  • $100 hourly
    Since 2013, we’ve been at the forefront of AR, MR, and XR technologies. We’ve brought dozens of products to market, and our solutions have been used worldwide. Our team specializes in using computer vision to develop immersive experiences using the latest tools and platforms including Apple’s vision framework, Yolo, tensorflow, coreML, ARKit, Reality Kit, Unity 3D, Swift, Flutter, Python, Open CV, Open XR, MRTK. Why work with us? Expertise in Prototyping & Mixed Reality: Whether it's developing AR apps, mixed reality 3D experiences, or complex prototypes, we offer both deep technical know-how and a creative production background. AI & Machine Learning Integration: Our team has deployed machine learning models for image segmentation, classification, and depth estimation on mobile platforms, as well as facial recognition and computer vision integration for advanced AR and VR applications. Cross-Platform Development: From Unity AR game development and Meta Quest 3 VR/MR projects to camera array image stitching, we're well-versed in XR technologies. We’ve optimized VR environments, integrated Photon Fusion for multiplayer functionality, and utilized tools like OpenCV, Yolo, CoreML, and TensorFlow to push the limits of innovation. Vision Pro and Meta Quest Pioneers: We are early adopters of the Vision Pro and Hololens headsets, and will soon be adding the Pico XR to our repertoire upon its release. We’ve beta-tested platforms like Niantic’s AR SDK and created AR experiences leveraging ARKit’s Lidar and UWB technology. Facial Emotion & Human Tracking Experts: We use tools like MediaPipe and Apple’s Vision framework for facial analysis, alongside our experience in training AI models for human tracking in defense, security, and sports applications. End-to-End AR/VR Solutions: From mobile AR app development to full-fledged VR environments, we’ve contributed to client patents in the AR space, always bringing a balance of technical prowess and creative vision. Let’s discuss how we can help bring your AR or VR project to life. Whether you're a startup or a global enterprise, we're the experienced developers you need to make it happen.
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    Beacon
    Bluetooth Beacon
    Virtual Reality Headset
    Mixed Reality Application
    Flutter Stack
    Vuforia
    Machine Learning
    Computer Vision
    OpenCV
    AR Application
    Microsoft HoloLens
    AR & VR
    Mixed Reality
    Firebase
    Swift
    Flutter
    ARCore
    ARKit
    Unity
    Augmented Reality
  • $50 hourly
    Hi, As a highly skilled Full Stack Developer with a wealth of experience in creating exceptional websites, web apps, and mobile apps, I would like to introduce myself: Throughout my career, I have successfully built and delivered a wide range of projects, showcasing my expertise in developing high-quality and responsive mobile sites. I am well-versed in creating cross-browser-compatible eCommerce Systems, CMS, and custom web portals, web applications, and mobile apps that provide seamless user experiences across different devices. Having had the opportunity to work on a diverse range of projects throughout my career, I have developed a deep appreciation for the importance of crafting interfaces that not only look great but also provide a seamless user experience. I firmly believe that the fusion of aesthetics and usability is key to creating remarkable digital solutions. In addition to my passion for creating engaging interfaces, I thrive in long-term collaborations. Building strong and lasting relationships with clients is one of my top priorities, as it allows for a better understanding of their needs and enables me to deliver solutions that truly align with their goals. I bring a flexible approach to my work, including my willingness to adapt my working hours to accommodate team needs. I thrive in collaborative environments and genuinely enjoy working with diverse teams, leveraging collective strengths to deliver outstanding outcomes. I would be thrilled to contribute my skills, experience, and dedication to your team and projects. I look forward to hearing from you!
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    Shopify
    Mobile Game Development
    RESTful API
    Node.js
    Swift
    Mobile App Development
    React Native
    MongoDB
    Vue.js
    Website Redesign
    iOS Development
    React
    Android App Development
    Native App Development
  • $60 hourly
    🏆 Top Rated Plus 🏆 10+ years of experience 💡🧠 🛠️ crafting high-quality mobile solutions 💻📱 for iOS, Android, and Flutter. I don't just build apps, I architect 🎨 and lead the development of robust 💪🛡️, scalable software 📈 that solves real-world problems 🧩 and delivers exceptional user experiences 🌟. My Expertise: ✅ Flutter Architect: I've spearheaded successful migrations of native apps to Flutter, reducing development time and boosting performance. I'm proficient in building custom Flutter plugins, optimizing for web and mobile, and deeply understand Flutter's architecture and best practices. ✅ SDK & Plugin Development: I have a proven track record of creating multi-platform SDKs and plugins that streamline development and enhance functionality for other developers. My focus is on clean code, intuitive APIs, and seamless integration. ✅ Mobile-First Strategy: I'm passionate about creating mobile experiences that prioritize user engagement and satisfaction. I have a strong understanding of mobile design principles and UI/UX best practices. ✅ Technical Leadership: I've led teams, mentored developers, and fostered collaboration to deliver complex projects on time and within budget. I'm a certified Scrum Master with experience in Agile methodologies. My Skills: ✅ Languages: Swift, Objective-C, Java, Kotlin, Dart, C/C++, C# ✅ Platforms: Flutter, iOS, Android, Web ✅ Tools: Xcode, Android Studio, Git, CocoaPods, Firebase, RESTful APIs, GraphQL, MQTT, BLE, NFC ✅ Methodologies: Agile, Scrum, Mobile-First Design, Clean Architecture, SOLID Principles 🤝 Let's Collaborate! 🤝 I'm eager to apply my skills and experience to your next project. Whether you need a Flutter expert, a Mobile developer, an SDK developer, or a technical leader to guide your team, I'm ready to deliver results that exceed your expectations.
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    Machine Learning
    Python
    Bluetooth
    Firebase
    MQTT
    C#
    C++
    Java
    Swift
    Objective-C
    Dart
    Flutter
    Android
    iOS
  • $119 hourly
    I am a software developer with over ten years of experience creating high-quality digital products that customers love. I am an effective communicator and team members appreciate my ability to turn complex problems into actionable steps. I am very self-driven, solution-orientated, and eager to step in where I am needed most to help a company scale and grow.
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    React Native
    Unity
    Python
    PostgreSQL
    Django
    Google Cloud Platform
    iOS
    Redis
    React
    ExpressJS
    Node.js
    Amazon Web Services
  • $30 hourly
    I am a full stack developer with expertise in iOS & Android & web app design and development using Native or Cross-platform development approach. I do Back end development using Nodejs, Firebase, .NET, or PHP technologies. Coding is my passion. I love to bring ideas to life. I work full-time at Upwork and am online 12 hours a day to answer any of your questions. My strengths are: — everyday reports about progress — well commented enterprise-ready source code — ultra-fast response time; — all tasks are recorded in the Issue Tracking system. I use Git to track source code, know JSON, XML, Geo-location, Push, Core Data, Multithreading, and more technologies.
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    Salesforce App Development
    Web Development
    Apex
    Salesforce
    .NET Core
    React
    Swift
    Android
    React Native
    Node.js
    Mobile App Development
    Flutter
    iOS Development
    PHP
  • $60 hourly
    I am an experienced full-stack software developer with over 8 years of expertise in designing, developing, and managing complex, high-quality projects. My skills and experience allow me to create and oversee intricate software systems that cater to the diverse needs of businesses across various industries. Skills and Technologies: - React Native/Flutter - JavaScript/TypeScript, React/Angular/Vue, and Node - PHP/Laravel and Python/Django/Flask - WordPress, Wix, and Webflow I bring a wealth of technical expertise, a steadfast commitment to excellence, and a strong work ethic to every project I undertake. Please feel free to reach out, and let's start a conversation. Best regards, Alex.
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    Vue.js
    React
    ASP.NET
    C#
    Angular
    Objective-C
    PHP
    Java
    JavaScript
    Laravel
    Python
    Node.js
    React Native
    Swift
    Flutter
  • $85 hourly
    Hi! Nice to meet you online! I enjoy writing code, solving technical problems, interacting with people, and helping my clients succeed. My skills: 1. Mobile app development (iOS - SwiftUI/Swift/Objective-C/C++, Android - Kotlin/Java/NDK, Realm) 2. Web app development (Full Stack, Angular, Vue, Python, Java, RDBMS, NoSQL) 3. Desktop app development (Java, JavaFX, cross-platform installers) 4. Computer Vision, OCR, NLP, Deep Learning, and AI (Python, OpenCV, Tesseract, TensorFlow) 5. Google Cloud computing, GAE, AWS (SAM, Elastic Beanstalk, Lambda, API, RDS)
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    Docker
    Google Cloud Platform
    JavaFX
    Android NDK
    iOS Development
    Mobile App Development
    TensorFlow
    OpenCV
    Computer Vision
    Tesseract OCR
    PostgreSQL
    Objective-C
    Swift
    Java
  • $59 hourly
    I am a native German iOS and Android App developer assisting startups and entrepreneurs in manifesting app ideas into real-life businesses done locally in West Hollywood, CA. Many of them with 500+ 5star rated reviews and released in over 100 international languages. Being multilingual myself, I had the opportunity to work with international development teams as a senior app developer for Universal Music in New York and Paris. There, I've created mobile applications and web platforms for a broad range of clients like Peugeot, CityJet Airways, Yves St. Laurent, and Daft Punk. Acquiring a sense for design, user experience, and appreciation of the importance of attention to detail. On the technical side, I've mastered SwiftUI (since Dec'20), Swift5, Java, PHP, node.js, Firebase Functions, AWS, Google Cloud, MS Azure, and all the common databases required to scale any existing app to its success size. On the human side, I offer a strong ability to understand complex requirements and retain project details with proven self-established processes that save both parties time. My current best selling service is providing secure face authentication solutions inside civil and governmental applications (DUI offender apps etc.) with self-created proprietary processes in the field. FaceCheck for ex. is recognized by leading cybersecurity firms and can enhance security in any networking app where people meet people in real life. I exclusively communicate in video calls here on Upwork throughout the span of a project and with service and care beyond an app launch. My success rate of 5-star ratings on published apps speaks for itself. The majority of my satisfied clients have turned ideas into real startups and dreams into reality. Let's take on yours next!
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    Cryptocurrency
    Mobile UI Design
    Objective-C
    Swift
    Java
    Android
    Augmented Reality
  • $45 hourly
    Hi there! 👋 I'm an Ex-Apple Engineer with over 12 years of experience in software development. My tech stack: 🔥 Native app development - Swift/Objective C for iOS and Java/Kotlin for Android 🔥 Cross-platform app development - React Native and Flutter 🔥 Web development - React, NodeJS, Angular, PHP, Java etc. 🔥 Cloud - AWS, Firebase, Google Cloud Platform, Digital Ocean etc. 🔥 Tools - Jira, ClickUp, Trello, Slack, Github, Bitbucket, Gitlab, Amplitude, AdobeXD, Photoshop, Canva etc. I've built software applications for a number of domains, some are - 🌍 Social media/ networking and Dating 🛍️ Rewards, Coupons and Discounts 🗺️ Navigation/GPS 🏠 Real estate 📈 Business 🛒 E-commerce, Fashion and Clothing 🌟 Entertainment 🎓 Online Learning 🚗 Transportation 🌇 Travel 📱 Wearables and IoT (Internet of Things) 🍽️ Restaurants 🏥 Telemedicine 💉 Healthcare, Wellness and Fitness 📚 Education 💵 FinTech 🏈 Sports 🧪 Science and Research 👨‍🍳 Cooking and Recipes 🎯 Games and Trivia 🚘 Automotive I lead a team of 30 developers, where I am responsible for managing team activities and projects, ensuring timely delivery, and maintaining code quality standards. In addition, I am highly communicative, detail-oriented, and passionate about delivering exceptional work. I strive to keep up with the latest industry trends and technologies to ensure that my clients receive the most innovative and cutting-edge solutions. You don't have to look anywhere else if you are looking for a reliable and skilled software developer to bring your ideas to life! Let's work together to create something amazing! 🚀
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    RESTful API
    Amazon EC2
    Stripe
    AWS Lambda
    iOS Development
    Android App Development
    Node.js
    AWS Amplify
    PHP
    Amazon Web Services
    Java
    Swift
  • $70 hourly
    👋 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.
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    RESTful API
    Mobile App Development
    Python
    iOS
    React Native
    Android
    MongoDB
    Amazon Web Services
    Flutter
    Swift
    React
    Node.js
  • $80 hourly
    I build mobile applications and backend services. If you're looking to make your app idea come to life. I can build your MVP or help take your React native/Android app to the next level. My approach to building mobile apps is fast and scalable using industry best practices. Apps I've built have amassed more than 500k+ downloads across iOS and Android. 💡 Technologies I work with: ⭕️ Languages: HTML, CSS, Javascript, Typescript, Python, Sass, Kotlin, Golang ⭕️ Frameworks: React-Native, Expo, Node.js, Express, Next.js, Android, iOS ⭕️ Libraries: React, jQuery, Redux, MobX, Material, Reanimated, ⭕️ Cloud: AWS, Oracle, Amplify, AppSync, Firebase ⭕️ Database: MYSQL, MongoDB, Postgresql, GraphQL, DynamoDB, Oracle ⭕️ Misc: GIT, Heroku, Linux, REST-API, Babel, Xcode, Apollo, MVC, MVVM, MERN ❓ Have an app idea? ❓ Want to see your UX/UI designs become real IOS/Android Apps? Message me for a free product assessment 📱
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    React Native
    Oracle APEX
    PostgreSQL
    React
    JavaScript
    TypeScript
    Flask
    RESTful API
    Websockets
    GraphQL
    NestJS Development
    NestJS
    OpenAPI
    Python
    ExpressJS
    SQL
    MongoDB
    Android
  • $45 hourly
    I am an experienced programmer that wants to help you create your dream Android app! I believe that communication is key to making sure the finished product is exactly how you envisioned it.
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    Google Maps API
    Android App
    Git
    Room
    Android NDK
    GitHub
    Android SDK
    Android App Development
    Android
    Firebase
    Java
    Android Studio
    SQLite
  • $100 hourly
    Senior Software Engineer with 15+ years of professional experience in almost every market vertical and technology area. I craft solutions that feel like magic.
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    Cryptocurrency
    Deep Neural Network
    Ethereum
    Blockchain
    Mobile App
    Deep Learning
    Blockchain Development
    Crypto Exchange Platform
    Rust
    Crypto Wallet
    Golang
    C#
    JavaScript
    Node.js
  • $75 hourly
    I've built multiple apps with over 20k active users. Since 2017, I've built 20+ apps from scratch to release on both App Store & Play Store. if you * need to validate, start and launch your startup ideas * are expanding your existing business with apps * need help on your technical team * need to solve bugs or continue from other developers I'm your guy * I'm very experienced in native apps: From iOS apps in Storyboard & SwiftUI to Android Apps in Kotlin * I build backends primarily in node.js with mongodb. I primarily build on AWS but I also have experience with other cloud & vps providers like godaddy, hostinger, etc. * I do not compromise on quality Feel free to reach out! Depending on my availability, I will get on a confidential 30 minute free call with you if you need help figuring out your project in technical details :)
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    CSS 3
    HTML
    Web Hosting
    Swift
    MongoDB
    Node.js
    iOS
    Android
    JavaScript
    MySQL
    PHP
  • $75 hourly
    Hi. I am a mobile developer driven by the thought that the devices we carry everywhere can make our everyday lives easier, more efficient, and more secure. Experience with: - Flutter Development - React Native development - iOS Development - Android Development - Mobile Game Development
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    Game
    Unity
    Unreal Engine
    Java
    React
    Android
    iOS
    Dart
    Mobile App Development
    Objective-C
    React Native
    Firebase
    Flutter
    Swift
  • $50 hourly
    I'm a backend developer with 5+ years of industry experience who is interested in building scalable and efficient backend systems. I am most knowledgeable in scaling large databases, building complex APIs, and streamlining data pipelines. I also have a strong sense of ownership and leadership and will fully close out any task with no loose ends.
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    Data Engineering
    Back-End Development
    SQL
    Python
    Java
    GraphQL
  • $40 hourly
    "Let's always work together. If you want to go fast, go alone, if you want to go far, go together" I'm Julius, a skilled and experienced Full Stack developer who specializes in Next, Vue, and Go. I completed a bachelor's degree program and developed a mobile application for the IoT industry at that time. It was designed to communicate with Bluetooth devices on Android mobile devices. This experience motivated me to pursue a career in web and mobile app development. With this background, I have developed many Web and Android mobile applications. Three years ago, I was very impressed with Next, Vue ,and Golang, and I've enjoyed developing cross-platform web applications ever since. This is particularly impressive as it allows me to build web applications for both platforms with a single codebase. Additionally, React Native development also involves React, so I am able to develop web frontends using React and NextJS. Vue framework as well. Can I consider myself a full-stack developer? Here are my skills: - Web Frontend: React/Next, Vue/Nuxt - Web Backend: Golang, Node/Express, NestJS, PHP/Laravel, Python/Django - Hybrid mobile app development: Flutter, React Native - Version Control: GitHub, GitLab, Bitbucket - Tools: Android Studio, Xcode, Visual Studio Code, IntelliJ IDEA - Programming Languages: Go, C++, Java, Python, Kotlin, Dart, PHP, JavaScript, TypeScript, C# - DevOPS: AWS, GCP
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    CI/CD
    TypeScript
    Python
    Node.js
    Firebase
    Objective-C
    Swift
    Dart
    Java
    iOS
    Android
    Flutter
    React
    React Native
  • $95 hourly
    Developed and published over 200 mobile apps, and various SDKs. Lots of experience creating apps with wireless communication (Bluetooth, WiFi, NFC) - 15+ years of native iOS app development experience with Objective-C, Swift, SwiftUI. - 9+ years of native Android app/SDK development experience. - Experience with: - Flutter - Kotlin Multiplatform - React Native Developing AR apps for Apple Vision Pro - Python - Developed scripts and automation tools for Blender - Blender - Created assets for VisionOS apps - Apple RealityKit/AVKit - Experience with: - Unity - Unreal Engine Experienced UX/UI Designer
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    Blender
    NFC
    Bluetooth
    Flutter
    Python
    Android App
    iOS Development
    Software Development
  • $40 hourly
    Innovative and solutions-oriented Software Engineer with 12+ years of diverse experience in information security, IT infrastructure, and software design & implementation. Proven record of working with various development frameworks, systems, & databases, executing Continuous Integration/Continuous Deployment (CI/CD), and collaborating with cross-functional teams. Skilled at aligning software solutions to company goals, utilizing complex technologies, and maintaining systems.
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    Cucumber
    Python
    Core Java
    Kibana
    Elasticsearch
    Logging Framework
    JUnit
    Redis
    Apache Kafka
    Hibernate
    SQL
    PostgreSQL
    Spring Framework
    Java
  • $70 hourly
    🏆 5 + Years Of Experience 🏆 Cost-Effective 🏆 High-Quality Work 🏆 Fluent English Verified 𝗘𝗺𝗽𝗼𝘄𝗲𝗿𝗶𝗻𝗴 𝗦𝘁𝗮𝗿𝘁𝘂𝗽𝘀, 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀, 𝗮𝗻𝗱 𝗢𝗿𝗴𝗮𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀 𝘄𝗶𝘁𝗵 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 𝗠𝗼𝗯𝗶𝗹𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. With over 5 years of experience in mobile app development, I provide a comprehensive suite of services to turn your vision into high-performing web and mobile applications. Whether you need a robust web platform or a sophisticated mobile app, I deliver solutions that are seamless, scalable, and secure. 𝗠𝘆 𝗮𝗿𝗲𝗮𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: 📱 Mobile Apps (iOS and Android) 🎯 We excel in projects due to our focus on gaining high levels of client trust from the start 💡 Why Work with Me? I’m committed to building robust, future-proof solutions that solve real business problems. I value collaboration and maintain clear communication throughout the project. With me, you get: ⚡ Quick Turnaround Times ✅ High-Quality, Reliable Code 🎯 Transparent, Client-Centered Approach 📈 Ongoing Support & Maintenance ✏️✏️𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗣𝗹𝗮𝗻 ✏️✏️ The design and development of the whole product will be in phases. BA Analysis → Wireframes & Prototypes → UI/UX Design → Backend and API Development → Testing → Launch and Maintenance 𝗠𝘆 𝗰𝗼𝗿𝗲 𝘀𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝘀: ✅ Technologies we use - React Native | Flutter | Swift | Kotlin | SwiftUI | IoT| Socket.io ✅ Interaction with backend - Rest API | JSON | XML | PHP | Nodejs ✅ Databases / Data Management - SQLite | MySQL ✅ Social Integration - Facebook | Twitter | Youtube | Instagram | Snapchat | Tinder ✅ Chat - XMPP | Socket | Firebase ✅ Version Control Tools - Github | Bitbucket | Gitlab ✅ Google Maps, Apple Map kit | Geolocation | GPS | Location Tracking ✅ Audio / Video Live Streaming ✅ Firebase APIs ✅ Paypal | Braintree | Stripe Payment Gateway ✅ QR Codes | BarCodes | VIN Scanner | NFC Tags Reading ✅ In-App Purchase | Advertisement | Push Notifications | GCM | Google Analytics 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 🏐🤾‍♂️ - Sports betting and i-gaming 📚🎓 - Education and Academia 🏥⚕️ - Healthcare and Fitness 💇✈️ - Service Booking 🚚📦 - Delivery Platforms 🛒🛍️ - Retail and E-commerce ✈️🌍 - Travel and Tourism 🚚📦 - Logistics and Transportation 🏡🏨 - Real-estate and construction 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 🍻 keyword: Full Stack Developer | Web Application Development | Mobile App Developer | End-to-End Development | Frontend Developer | Backend Developer | MERN Stack (MongoDB, Express.js, React.js, Node.js) | MEAN Stack (MongoDB, Express.js, Angular, Node.js) | LAMP Stack (Linux, Apache, MySQL, PHP) | JAMstack Development | API Integration | Responsive Web Design | Cross-Browser Compatibility | Scalability Solutions | Microservices Architecture | Cloud-Based Solutions | RESTful APIs | React.js Developer | Vue.js Developer | Angular Developer | HTML5/CSS3 | JavaScript Expert | TypeScript Developer | Bootstrap | Tailwind CSS | Single Page Applications (SPA) | Node.js Developer | Python Developer | Ruby on Rails Developer | Express.js Developer | Django Developer | API Development | GraphQL Developer | MySQL/PostgreSQL | MongoDB Developer | Firebase Expert | Redis | Docker & Kubernetes | CI/CD Pipelines | DevOps Engineer | iOS Developer (Swift) | Android Developer (Kotlin, Java) | React Native Developer | Flutter Developer | Cross-Platform Mobile Apps | Hybrid Mobile Apps | Native App Development | Xamarin Developer | Progressive Web Apps (PWA) | Mobile UI/UX Design | AWS Developer | Google Cloud Developer | Azure Solutions Architect | Cloud Computing Solutions | Serverless Architecture | WordPress Developer | Shopify Developer | WooCommerce Developer | Custom E-Commerce Solutions | Web Performance Optimization | SEO-Friendly Development | Page Speed Optimization | Mobile Optimization | UX/UI Optimization.
    vsuc_fltilesrefresh_TrophyIcon Kotlin
    JSON
    iOS
    Mobile App
    Java
    Android
    Firebase
    SQLite
    Node.js
    RESTful API
    Socket.io
    SwiftUI
    Swift
    Flutter
    React Native
  • $60 hourly
    I am an skilled software engineer with over a decade of experience specializing in designing and developing high-quality mobile applications for both iOS and Android platforms. My key skills include: * iOS Development: Swift, SwiftUI and UIKit framework. * Android Development: Java, Kotlin * Cross-Platform Development: Proficient in Flutter and React Native * Back-End Development: AWS, Firebase, Node.js I have delivered solutions across the finance, insurance, and legal sectors, including a collaboration app for lawyers, a fitness app integrating data from multiple devices, mobile wallets using advanced technologies, ride-sharing platforms, and enterprise-level location tracking solutions for global clients.
    vsuc_fltilesrefresh_TrophyIcon Kotlin
    React Native
    RESTful API
    Node.js
    Flutter
    Firebase
    GraphQL
    MongoDB
    Java
    Android
    SwiftUI
    Swift
    Android App
    iOS Development
  • $200 hourly
    With over 10+ years of professional experience, I have honed my expertise in iOS and Swift native app development. My career highlights include leading the creation of apps that significantly improved user engagement and market responsiveness. I bring a proven track record of successful app launches and innovation. 1. Director of R&D at DJI: build SDKs that controls all the Drones. Lead all Software and Hardware development in North America 2. Head of Engineering at Sincerely: Built all Android/iOS apps for Sincerely Inc from scratch (5 apps) 3. CTO of Rocketlink Mobile: build Web and Android solution from Scratch
    vsuc_fltilesrefresh_TrophyIcon Kotlin
    Project Management
    Engineering Management
    Test Development
    Product Management
    Reverse Engineering
    Model View ViewModel
    Drone
    API
    Mobile App Development
    Tablet
    Smartphone
    Java
    iOS
    Android
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