Kotlin is a popular and powerful open-source programming language. It is the official language of Android development, allowing developers to create sophisticated, innovative apps. Kotlin simplifies and speeds up development, allowing ambitious projects to be implemented faster, with fewer lines of code. This makes it an attractive option for clients looking to build a highly functional app or website quickly and efficiently.

Kotlin Developers bring valuable experience and expertise to any project they take on, allowing clients to get the most out of their investment. They are experienced in app architecture and development, making sure that client’s apps function exactly as desired. They also have excellent problem-solving skills, ensuring any issue is quickly resolved. In addition, their understanding of the Kotlin language makes working with this powerful tool more efficient and effective for clients.

Here's some projects that our expert Kotlin Developer made real:

  • Intuitive payment integration platforms
  • Secure authentication systems
  • Multi-platform app development
  • Streamlined in-app purchase functions
  • API issue resolution processes
  • Customized Login activities to connect with databases
  • Bug fixes for mobile apps on all platforms
  • Detailed user profiles optimized for functionality
  • Updated Android apps up to latest Google specs
  • End-to-end VPN app solutions for iOS, Android, Windows and Macs

At Freelancer.com we want our clients to know that their projects will be handled expertly by professionals with extensive experience in building with the Kotlin language. We can provide you with an experienced Kotlin Developer who can make your ambitious projects a reality in record time. Together you can bring your plans to life quickly and efficiently, allowing you to reap the rewards of our collaboration as soon as possible. If you're interested in taking advantage of our expertise in the field of Kotlin development then please do not hesitate to post your project today so that one of our professionals can help bring your plans to life!

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    Sr. Android Developer Exp: 7+Years Kotlin, RXJava, Dependency injection (Koin/Dagger) Unit Test Worked on multi-threaded applications MVP and MVVM Experience of working in Testing tools like Appium/Expresso is good to have. Design and develop advanced applications for the Android platform in B2C domain. In depth understanding of Android recommended design principles, interface guidelines and coding best practices. Experience with performance and memory tuning of complex apps. Experience with Agile development methodology (preferably scrum), continuous integration and tools (GIT, JIRA etc.) used to achieve the same. Take full ownership of the solution and be responsible for translating functional requirements into a product solution or offering. Ability to work with multiple internal and...

    $11 / hr (Avg Bid)
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    I am in need of an experienced app developer who can develop an apps iOS and Android. While I have not finalized the primary purpose of the app, it is a given that it would need to be user-friendly, intuitive, and innovative, with primary emphasis on its UX/UI design. Key Responsibilities: - Develop high-quality app iOS and Android and flutter , - Continual updates, maintenance, and iterations Ideal Skills and Experience: - Experience in designing and building mobile applications for iOS and Android - Expertise in UX/UI - Knowledge in all phases of software development - Strong problem solver Although there is no set timeline for this project, I am looking for someone who can dedicate consistent working hours to building and refining this application. Please only apply if you meet the ...

    $1457 (Avg Bid)
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    Hello We are seeking an experienced app developer to assist us with the deployment of our Android application on the Google Play Store. The app has already been developed and tested, and we are now ready to publish it to the Google Play Store. Responsibilities: Prepare the necessary assets and documentation required for app submission. Ensure that the app meets all Google Play Store requirements and guidelines. Upload the app to the Google Play Console and manage the submission process. Address any issues or feedback from the Google Play Console team during the review process. Provide ongoing support and maintenance for app updates and revisions as needed. Requirements: AProven experience in deploying Android applications on the Google Play Store. Familiarity with the Google Play Conso...

    $14 / hr (Avg Bid)
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    I'm in need of an Android developer with experience in Java and Kotlin who can handle issues with fingerprint scanner devices like Futronics FS80H and Mantra MFS100 on Android 14. Key Responsibilities: - Diagnose and resolve compatibility issues with the latest Android 14 version. - Ensure the scanner can correctly detect fingerprints. - Ensure the scanner is responsive and functions as expected. Ideal candidates should have: - Proven experience working with fingerprint scanner devices. - Expertise in Java and Kotlin for Android development. - Strong knowledge of Android 14 and its compatibility requirements. - A track record of troubleshooting and resolving technical issues. This is an urgent project, and I'm seeking someone who can deliver results promptly and effectively.

    $13 (Avg Bid)
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    We are seeking a skilled individual who is proficient in using the Google Play Console to publish apps. As our app developer, you will be responsible for uploading, managing, and optimizing our app listings on the Google Play Store. Responsibilities: 1. Utilize the Google Play Console to upload new app versions, including APK files, screenshots, descriptions, and other necessary assets. 2. Ensure compliance with Google Play policies and guidelines to prevent app rejection or suspension. 3. Manage app metadata, including titles, descriptions, keywords, and categories, to optimize visibility and searchability. 4. Monitor app performance metrics, including downloads, ratings, and reviews, and implement strategies to improve user engagement and retention. 5. Collaborate with the development ...

    $12 / hr (Avg Bid)
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    I'm looking for a highly skilled Kotlin developer with advanced experience to join my team. Your key responsibilities will include: - Collaborating with a cross-functional team to define, design, and ship new features. - Ensuring the best possible performance, quality, and responsiveness of the application. - Helping maintain code quality, organization, and automatization. - Staying up-to-date with industry trends and advancements in mobile technologies. Ideal candidates should have: - Proven experience in mobile development using Kotlin. - Strong understanding of Android design principles and interface guidelines. - Familiarity with RESTful APIs to connect Android applications to back-end services. - Experience with offline storage, threading, and performance tuning. - Knowledge o...

    $27 / hr (Avg Bid)
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    I'm in urgent need of an expert Kotlin developer. Ideal Skills: - Exceptional Kotlin programming knowledge If you are versatile, adaptable, and have a strong understanding of Kotlin development across various aspects, please bid on this project.

    $244 (Avg Bid)
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    I am looking for an Android developer for an MDM (Mobile Device Management) Android project. The candidate should either be proficient in MDM or willing to learn it at a fast pace and start contributing to the project. This is a long term opportunity. Must have skills: Android development using Kotlin having at least 2 years of Professional Android development. Plus point : If you are in Bangalore near Whitefield, it will be great as we can even meet offline. Please bid with your portfolio. Please start your bid by the word "GREEN" so that I can filter out the spams. Note : This is a long term project.

    $7 / hr (Avg Bid)
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    We are seeking a talented freelancer to develop a comprehensive finance gadget locker app focused on EMI repayment management, along with additional features such as KYC verification, admin panel, promotions, and chat functionality. The app aims to help users effectively manage their loan or EMI payments while incentivizing timely repayments through a locking mechanism that restricts access to the user's phone in case of non-payment. Key Features: User Authentication: Implement secure user authentication methods such as PIN, pattern, fingerprint, or face recognition. Loan Account Linking: Allow users to link their loan or EMI accounts to the app, providing details like loan amount, repayment schedule, and due dates. Repayment Monitoring: Monitor users' repayment status, send no...

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    I'm in need of a seasoned Android developer with a strong background in Kotlin. I have a figma prototype. I need a one screen conversion. Figma to static responsive design in kotin and code explanation. I am attaching the screen page as jpg.

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    I'm looking for a skilled professional with dual expertise in both Android development and UX design. Key Goals & Responsibilities: - Improve user experience and aesthetics of my existing Kotlin Android application. - Enhance the app's look, colour, navigation, usability, and responsiveness. - Conduct code refactoring to ensure optimal performance. Proper understanding and experience in the following are crucial: - Android application development. - UX design practices. - Code refactoring, optimization and enhancing performance. - Visual aesthetics, and robust navigation systems. Your primary focus would be to revamp the app to make it more user friendly, agile and aesthetically pleasing. If you have sucessfully handled similar projects, please apply.

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    I am in need of a skilled backend developer who is experienced in working specifically with Ethereum in the realm of public blockchain technology. Even though the complexity level of the project is deemed simple, concerted effort and attention to detail would be crucial to perform the required tasks. Best candidates will have: - Solid experience in backend development on Ethereum's blockchain - Comprehensive knowledge of public blockchain, with a focus on Ethereum - Proficiency in understanding the dynamics of simple blockchain development projects - Excellent troubleshoot and problem-solving skills - A proven track record of successful blockchain projects completion. Keen attention to detail and the ability to work independently are paramount for this project. If this sounds like ...

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    I'm seeking a seasoned software developer to build a comprehensive restaurant management system suitable for Android, using Kotlin and Firebase. This application will not just be an order tracking platform, but a suite that includes features such as: - Order Management: This core function should not only create and track orders, but also be equipped to handle special requests and customizations from customers. - Multi User System: The system should support multiple user logins with varying access rights. - Point of Sale (POS): The system should have integrated POS capabilities - Printing: Thermal Print functionality is a must-have in order to generate customer bills and other essential hard copies. -Reports - sales report, profit etc. The preferred candidate would have prior exper...

    $750 (Avg Bid)
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    I am seeking a professional Android app developer to create a web application for me. Below are the specific features I want to include in the app: A. App Logo: I have the logo ready; you only need to integrate it into the app. B. Splash Screen Video: I possess the video for the splash screen; your task will be to incorporate it into the app. Screen: I already have a design for the homepage; I will provide you with further details via chat. D. Bottom Menu Navigation: Implement bottom menu navigation for easy access to different panels. Notes for the Developer: 1. App Compliance: Since I intend to publish this app on Google Play Store, it is crucial that the web app is developed in compliance with Google's standards. Additionally, please advise if integrating the web app with Fireb...

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    I'm looking for a java developer. Our Android App face recognition System. Live Face Detection & Match Our Database Skill • Android App Development • Knowledge in Live Face Detection Techniques • Face Authentication and Identity Verification Methods Experience with Live Face Recognation Model Train

    $323 (Avg Bid)
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    I require the development of an astrology-focused application for Android users, similar to AstroSage Kundli: Astrology. The application must incorporate the features of astrology predictions, horoscope matching, and a Panchang/Kundli section. I desire the app to follow a modern and minimalist design aesthetic. Ideal candidates will have a strong background in Android application development, an understanding or interest in astrology, and a knack for modern and minimalist designs.

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    Kotylin and JAVA engineer is wanted for crypto wallet. 1. Detect the location in the files where connection information to DB is defined and analyze how app and DB are connected. 2. Change DB name and password on app and DB sides without causing any trouble and make the system work.

    $210 (Avg Bid)
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    I'm looking for a skilled Flutter Kotlin developer to build a custom plugin for my Flutter application. The plugin should integrate with the OpenVPN client. Requirements - Develop a Flutter plugin to connect with the OpenVPN client for both UDP and TCP protocols. - Ensure that the plugin is compatible with Flutter v3.19.3. Ideal Skills and Experience - Proficient in Flutter and Kotlin. - Experience in developing custom plugins for Flutter. - Knowledge of how to integrate with VPN clients, specifically OpenVPN. - Understanding of VPN protocols and the ability to implement both UDP and TCP. This is a unique project that requires both Flutter and VPN expertise. If you have the skills and experience to deliver a high-quality plugin, I'd love to hear from you.

    $514 (Avg Bid)
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    I'd love to get assistance from a skilled developer to correct an issue on my Android app built on Kotlin. The app has a problem where an API behaves as expected on a debug APK but fails on a signed APK. Ideal candidate: - Exceptional experience with Kotlin and Android app development - Excellent proficiency in API logics - Skilled in debugging signed APK issues - Knowledge in re-templating code structures. Looking forward to a quick fix. Thanks.

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    Hola! Comentarles quisiera una app sencilla que sea un control de inventario que tenga 2 tipos de usuarios que seria el usuario normal y el administrador, que tenga 4 imágenes cada producto, que lleve una breve descripción, que se muestre la marca del producto, y que en el panel de administrador se pueda modificar precios, que desde el panel de administrador se puedan poner porcentajes de descuento y que en la vista de usuarios aparezca el precio original y después con el descuento aplicado, existencia de productos, fecha de caducidad y numero de lote también que la base de datos sea en sql server y que la app se pueda usar con internet y sin el osea si no se tiene conexión a internet que de igual manera se pueda ver los productos que hay sin importar no ...

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