Android Jobs

Hello, I have a dating app that was developed 4 years ago and is published on Google Play. It was made in JAVA, but now the version is depreciated on the market. What I want for this app is to rewrite the code using Kotlin or Flutter, because this app was made in Java 4 years ago. Within the app it has many functions. Apply for this project and tell me the price at which you would do it. and The estimated time. - Implement in the app (Membership - payment plan with Google)

I run an existing business, , that focuses on weddings. I'm eager to expand our digital footprint by launching an Android and iOS app. This application needs to exude a modern and minimalistic design aligning with our current brand aesthetic. Here are the essential features I need to be included: - RSVP Management: To assist in tracking who will be attending the events. - Guest List Management: To ensure smooth coordination and organization of attendees. - Wedding Day Timeline: For easy day-of planning and scheduling. - Photo Sharing: A space for guests to share their cherished moments. And also we have to promote different vendors categories ...maybe this option is good idea to connect with the categories of our wedding website Ideal freelancers would have a solid background in...

I'm in search of a talented app developer to create a service, mirroring the key features of the 'Zello' app, for both iOS and Android platforms. I want to launch a similar app that rivals Zello in its impressive capabilities. Main Features: - Push-to-Talk (PTT) Voice Messaging - Location Sharing - Status and Availability Information - Chat Share Image Location Ideal Skills: - Solid experience in cross-platform app development - Ability to replicate Zello's key features - Expertise in PTT Voice Messaging technology - High-level competency in integrating location-sharing features I am planning to complete this project within a month. It would be greatly appreciated if the interested candidates can demonstrate a strong understanding of the Zello app, and its operation...

I'm in need of a skilled mobile app designer who can redesign an existing android app and also make for IOS. there will be two versions (android / Ios) EDITED: this project is not only to change the color or the images to the current app. you need to know about programation in arduino, bluetooth and android ,, because this app will manage a lock using the smartphone. I send you the current android app in order that you could understand and know how the buttons work please do not offer your job if you can not open the current job and see how it works Key Requirements: - The design modifications primarily focus on be friendly and easy to use - For the user interface, I'm looking to make changes to the color scheme, font styles, and the overall layout. - In terms of functio...

Poszukuję osoby która ma na sprzedaż już gotowy skrypt strony internetowej lub aplikacji Android który łączy się z giełdą kryptowalut za pomocą API gieldy a następnie wystawia zlecenia kupna i sprzedaży w formie siatki .Każda ilość zleceń siatki mogła być modyfikowana przez użytkownika oraz żeby nie było limitu tworzenia i modyfikowania zleceń . Interesuje mnie gotowy skrypt do kupna oraz instalacji na serwerze . + Przejrzysty interfejs do konfiguracji

I am in need of a professional Android developer to create a live streaming app with the three key features of live chat, virtual gifts, and social media integration. Key Features: - Live Chat: The app should allow users to chat in real-time with streamers. - Virtual Gifts: Users should be able to gift virtual items to their favorite streamers during live broadcasts. - Social Media Integration: The app should seamlessly integrate with popular social media platforms, allowing users to share their favorite streams. Ideal Skills: - Proficient in Android app development - Experience with live streaming technologies - Familiarity with in-app chat and gift systems - Previous work involving social media integration

There are 4 slots to be chosen according to the devices availability. Only 1 test case is allowed per participant. Must have access to ONE or all THREE of the following devices: Android mobile (Android 5 and above) iPhone (iOS 12.4 or later) Desktop/Laptop All required screenshots must be in the English language. All required screenshots must show the current time (using notification or taskbar).

I am looking for a mobile app developer to create a rideshare app that will be available on both iOS and Android platforms. Although I have a rough idea for the app design, I am open to suggestions from the developer. The most important feature that I want to include in the app is GPS tracking to ensure accurate location tracking for both drivers and passengers. Other features such as in-app payments and ratings and reviews are also important to provide a seamless and reliable user experience. Ideal skills and experience for the job include: - Proficiency in mobile app development for both iOS and Android platforms - Experience in implementing GPS tracking functionality in mobile apps - Knowledge of in-app payment integration - Familiarity with implementing ratings and reviews features in...

I'm looking for a skilled mobile app developer to work on a comprehensive mobile wallet application. This project will involve: - Design customization: I need distinct color scheme, font style, and layout tweaks to give the app a unique look and feel. - Server setup: I require load balancing, security protocols, and scalability options to ensure the app's performance and security. - Feature enhancements: The app should include payment integration, transaction history, and promotions/discounts features. - UI/UX improvements: I need assistance in redesigning the user interface to ensure a seamless, intuitive user experience. Ideal candidate for this project should have: - Proven experience in mobile app development, particularly with wallet applications. - Strong design skills fo...

I'm in need of an Android developer who has high skills in the following areas: Im can suggust good budget This project is very complex Only high skills android Developer can take a part - Granting Permissions: I need someone who can work with me to set up secure and efficient permission management for the app. - Google Play Implementation: The developer should be able to implement Google Play services effectively to ensure a smooth and seamless experience for users. The project is complex, demanding someone with a deep understanding of Android development and a track record of working on similar projects. Key Responsibilities: - Manage device permissions effectively and securely - Implement Google Play services in a way that enhances user interaction with the app - Ensure that ...

Need a solution A barcode app to print and track our inventory. (Barcode&QR desirable)Online - Webbased. ProductCode/SupplierCode/Category/SubCategory/Batch/Colour/Size/Expiry/Selling PriceA/X/X/X/X/X/XX/XX/XXXX/XXXXXX.00Item description must print on the lable More details: We wish to use this app to count our inventory using bar code scanners Also when items are placed in a box to transfer between two shops, we need it to be able to use the scanner and count accuracy. Is this project for business or personal use? For an existing business What information should successful freelancers include in their application? Experience How soon do you need your project completed? ASAP

I'm in need of a comprehensive warehouse inventory replenishment tracking system for our Fastener drawer at Home Depot. The system should have a focus on reporting and analytics, real-time bin shrink, and work with an electronic keypad and analog/digital interface. Key Features: - **Reporting and Analytics:** The system should provide insightful reports on inventory levels and trends. This will help us make data-driven decisions. - **Real-Time Bin Shrink:** I need to know if the quantity of items in the bin matches the recorded amount. - **Interface:** A mobile app interface will be ideal, making it easy for staff to work on the go. Inventory Tracking: - The system should involve manual entry for inventory tracking. The system should be user-friendly and easy to use for our...

As the overseer of an exciting cross-platform application project, I am in need of a proficient Flutter developer. The project will require your expertise in various areas including User Authentication, Push Notifications, and In-App Purchases. The application needs to be compatible with iOS, Android, Web, and Desktop platforms. I have already prepared a specific design for the application, freeing you from the responsibility of conceptualization. Ideal skills and experience: - Profound knowledge in Flutter development - Experience with multi-platform app development - Practical understanding of user authentication, push notifications, video players integration, quiz, - Ability to work from an existing design and wireframe Your role will involve the application of the above-mentioned...

Create an app and software that allows users to view their recorded game play footage. Hardware at sport facilities will record game play, controllers will be programmed to post recorded footage to servers. app needs to be developed so that this game play can be accessible for users to view/download etc. please review information before bidding, as well as budget. specified budget is maximum if your bid is higher please dont bid

I have some ideas regarding the design of the app but I need assistance in finalizing it. I'm looking for a Flutter developer with experience in Magento to replicate the look and feel of my website in an app. Key Requirements: - Convert ideas into a polished app design - Implement Magento features in the app Deadline: - I'd like the project completed as soon as possible Ideal Candidate: - Proficient in Flutter app development - Experience with Magento - Strong UI/UX design skills - Ability to work efficiently under tight deadlines Please provide examples of your previous Flutter projects and experience with Magento in your proposal.

I am in need of a skilled and efficient game app developer specializing in strategy games. This project involves creating a strategy game that is compatible with both iOS and Android platforms, and also integrates social media sharing for achievements. Key Requirements: - Proficient in game development for iOS and Android platforms - Previous experience in creating strategy games - Familiarity with integrating social media sharing into apps Please only apply if you can deliver top-notch work and meet tight deadlines. No SLOW developers, please.... type int he top ASAP

I am seeking an experienced game developer for iOS and Android platforms supporting mulitplayer scenarios. As the genre is not specified yet, broad experience in diverse game types is highly appreciated. The completion time is a critical factor, requiring the project to be finalized ASAP. Ideal Skills for the Job: * Extensive experience in game development * Proficiency with iOS and Android platforms * Experience with multiplayer functionalities * Ability to work under tight deadlines * Diverse portfolio of game genres Deliverable Expectations: * A fully functional multiplayer game compatible with iOS and Android * Incorporation of diverse game genres to cater to all audiences * Swift delivery of the project following a tight timeline. Please include examples of your previous work a...

"I am looking for an experienced programmer to develop a logistics management program with integrated travel services. Key features: Inventory Tracking: The system must efficiently monitor our inventory in real-time, updating stock levels when items are added or sold. I also need assistance with travel-related services. Specifically, I need the system to manage: Travel details: When we load the goods, divide them by type of merchandise, recipient, and number of contracts. Delivery tracking: Keep track of shipments in transit, providing real-time updates on their status. Payment tracking: Indicate whether travel services have been paid for or not, allowing us to monitor outstanding payments."

I'm in need of a skilled mobile app designer who can assist in enhancing the features and look of my existing app. Key Requirements: - The design modifications primarily focus on UI improvements and functionality enhancements. - For the user interface, I'm looking to make changes to the color scheme, font styles, and the overall layout. - In terms of functionality, there are a few particular areas that need work: - Integration of push notifications to keep users engaged and informed. - Integration of social media, to enhance user experience and engagement. - Enhancing user authentication to ensure robust security measures. Ideal Skills and Experience: - Proven experience in mobile app design, with a strong portfolio of UI/UX work. - Proficient in design tools and...

I'm urgently looking for a skilled professional who understands the ins and outs of Android system and can root my device. I wish to install a custom ROM, specifically, a customised name ROM. If you are efficient in rooting Android devices and have previous experience with ROM installation, this job is for you. Please illustrate your skills and experience when bidding. Skills Needed: * Knowledge and experience in rooting Android devices. * Understanding of custom ROMs installation. * Familiarity with customised name ROM will be a plus. * Ability to start immediately and work quickly. Quick completion is my priority as I need this done ASAP. Enjoy a straightforward task with a sense of urgency. Let's discuss further details!

I'm after a full-fledged mobile application for my dance studio, compatible with both iOS and Android platforms. More than just communication, this must provide an all-encompassing experience for our dance studio users. Key Features Needed: - 'Class Schedules Registration': users should easily view and register for our classes. - 'Dance Tutorial Videos': Let our audience enjoy video content of dance tutorials from our studio. - 'Chat Room': A communication platform for users to discuss dance classes, schedules, or general queries. - 'Booking Studio Space': We have 2 dance studios for rent, users should be able to book them through the app. Registration Process: We require users to register for classes: - An Enrollment Form within the app its...

I'm seeking a talented developer to create an application where users can upload video reels. I need an artificial intelligence feature integrated into the app that can analyze these reels. Moreover, the AI should also be capable of scanning texts that users input and turn them into a document. The app needs to be monolingual and doesn't require support for multiple languages. The app will let users upload revision notes with a point system and have a dashboard of how long they've spent doing it. I want to eventually make it into an app which teachers, parents and students can use to check their childs activity and help others. i want a spot for brands to post student discounts and eventually earn commision off it the app sould also have a pro subscripion which has access to...

Necesito un experto en flutter para hacer unas mejoras a una App la cuál cuenta con unos vídeos que te ayudarán a entender como funciona la app y también te mandaría los cambios más entendible posible es un trabajo que se necesita en el poco tiempo posible

I'm looking for a mobile app developer to create a cross-platform service app similar to URBAN CLAP. The app should be available on both Android and iOS devices. Key Features: - User Registration: Users should be able to create accounts and log in securely. - Service Provider Registration: A feature that allows service providers to register and offer their services on the app. - Service Booking: Users should be able to browse available services, select, and book them. - Payment Integration: A secure payment gateway should be implemented to facilitate transactions between users and service providers. Ideal Skills and Experience: - Proficient in cross-platform app development - Knowledge of creating user-friendly and engaging interfaces - Experience in integrating secure payment gatew...

I am in need of an experienced IOS app developer to create an app similar to AliExpress. The app will be a platform where sellers can showcase their products, and customers can purchase them using various payment methods. Key Features: - Development of an Android app with a user-friendly and intuitive interface - Functionality for sellers to create product listings - Integration of multiple payment gateways including Credit/Debit Cards, PayPal, and Mobile Wallets - Secure and reliable payment processing for customers - Ability for customers to browse, search, and purchase products - Notification system for order status updates - Shopping cart and checkout functionality Ideal Skills and Experience: - Proven experience in developing Android applications - Strong knowledge of mobile app dev...

I'm looking for a talented mobile app developer to create a comprehensive family tree mobile application. The app should be available on both iOS and Android platforms. The primary goal of the app is to enhance family communication and organization, so it will feature several key functionalities, including: - User registration and login - Family tree visualization - Photo upload and tagging - Entering details for individuals by Admin or other users with approval from Admin - Family News - Family Calendar - Admin Notifications and user notifications - Family Board data with accomplishments The app should have an intuitive and user-friendly interface, making it easy for all family members to interact with. Experience in developing similar applications, particularly those focused on ...

I'm looking for a skilled mobile app developer to create a versatile and user-friendly invitation app that can be used across multiple occasions including weddings, birthdays, and more. Primary Functions: - Sending digital invitations - Managing RSVPs Key Features: - Compatibility with both iOS and Android - Advanced level of customization for the invitations (custom designs and layout) Ideal Skills: - Proficiency in mobile app development for both iOS and Android platforms - Experience in developing apps with complex user interfaces for high customization - Knowledge of managing user data and RSVP systems - UI/UX design experience to ensure a seamless user experience - A keen eye for detail and the ability to achieve a polished final product If you have the required skills and e...

Overview: We are seeking a skilled UI/UX designer to create the design for a fantasy sports app. The app will provide users with an engaging platform to participate in various fantasy sports leagues and competitions. Key Features: Splash Screen: A visually appealing splash screen that captivates users' attention and sets the tone for the app experience. App Opening Screen: A seamless and intuitive app opening screen that guides users into the main interface of the app. Onboarding Screen: A user-friendly onboarding process that allows users to register/login using their mobile number and OTP authentication. Registration/Login: Smooth and secure registration/login process, integrating mobile number verification for authentication. Refer Code Screen: After successful login or regis...

I require a skilled developer to create a bus ticket booking application supported on both Android and Web platforms. This application should feature a user registration and login capability, thereby creating personalized experiences. Here's what is needed: Features - User registration and login feature for personalized use. - Facility to book bus tickets. - Support for credit card and debit card payments. Ideal Skills - Proficiency in Android and Web development. - Excellent understanding of payment gateway integration, specifically debit and credit cards. - Experience in developing applications with user registration and login features. - A portfolio with similar apps might give you an edge. This project demands a high degree of user-friendliness, secure transactions, and fla...

I am seeking a highly skilled designer with expertise in Android app development to design a casino app for me. Your main task will be to design a visually appealing and user-friendly casino app for Android devices, with a focus on the unique feature of Avator, which will be included. Key Responsibilities: - Designing a visually appealing and user-friendly casino app for Android devices - Implementing the unique feature of Avator into the app - Ensuring the app is compatible with Android platforms - Providing ongoing support and updates as required

I'm looking for a seasoned app developer to create a mobile application that functions similar to Instagram. The app should be compatible with both Android and iOS systems. Key features of the project should include: - Video sharing capabilities - Creation of user profiles - Various filters and editing tools for enhanced media uploading experience - Seamless social media integration for easy login and registration and Data fetching As for the user interactions, I'd like a direct messaging system for the users to communicate and an option for them to save their favorite posts. People should also be able to view posts they've liked in the past. The ideal person for this job should have extensive experience in mobile app development, particularly with social media applicat...

I require a specialist to integrate Phonepay SDK into my Android application to facilitate in-app purchases. This demands a comprehensive understanding of the Phonepay SDK, as well as expertise in Android app development. Here's what I need: - Integration of Phonepay SDK into my Android app for secure and seamless in-app purchases. - Guaranteed functionality after integration, with purchasers having a smooth, error-free experience. Ideal Skills and Experience for the Job: - Experience with Phonepay SDK - Proficient in Android app development - Knowledgeable in integrating payment gateways - Proven record in similar projects. The ultimate goal is to deliver a user-friendly application capable of safe and efficient in-app purchases via Phonepay SDK. If you are up for the challeng...

I need a skilled mobile app developer, experienced in creating dynamic, user-friendly social networking apps. The main focus is to create a platform to promote meaningful individual chats interactions: - User Profiles: Develop a feature that allows users to create and manage attractive user profiles. Experience in designing user profiles for other social networking apps would be advantageous. - Messaging: Mainly, the app should support individual chats. Your expertise in integrating seamless, bug-free messaging functionality would be desirable. Your knowledge of both iOS and Android app development is critical for the successful completion of this project. So, ensure you can translate an app concept into a high-quality, user-friendly interface. Please bid if you can turn my innovative s...

I'm in need of an experienced and creative mobile app developer to craft an innovative mobile application for me. The mobile app should serve the general public and combine some specific features to make a user's experience convenient and enjoyable. Key functionalities should include: - Social media integration, allowing users to connect the app with their various social media accounts - In-app messaging, enabling users to communicate with each other within the app - Push notifications, informing users about important updates or messages even when they are not actively using the app Timing is crucial for this project as I'm looking to have it completed within a month. Ideal candidates should have: - Proven experience in mobile app development for both iOS and Android pl...

I'm on the look out for a professional developer experienced in creating engaging cross-platform mobile applications. The application is envisioned to be a playful and interactive app, similar to roleplay AI boats. The application must have the following features: * Chatbot Integration: The main purpose of this integration is to heighten user engagement, providing them interactive scenarios, dialogues and events. A strong understanding of designing and implementing responsive chatbots is key. * User Profile Creation: Users should have the option to personalise their profiles and record their progress within the application. Experience with integrating user profile creation and management is crucial. * In-app Purchases: To supplement the gaming experience, a system for in-app pur...

I'm seeking a skilled Android developer to create a unique mobile app. The main features of this app will be centered around song lyrics and will also include a shopping functionality. Key features: - An extensive database of song lyrics - Clean, intuitive interface for easy navigation - A shopping section that allows users to purchase music-related items like music player, pendives, merchandise. - Integration with payment gateways for secure transactions - User-friendly account management and personalization options Ideal candidates for this project should have: - Proven experience in Android app development - Strong familiarity with e-commerce functionalities and payment integration - Prior experience with media-heavy apps, such as music or entertainment apps, will be a plus - Abi...

Require an ecommerce shopping site and Android and iOS app

As a client, I'm in need of an experienced mobile app developer who can help me deploy a cross-platform app. The primary goal of the app is to facilitate online food delivery, catering to users across different platforms. Key Features: - User Registration and Login: The app should allow users to create accounts and log in securely, with options to save their preferences and order histories. - Restaurant Selection and Menu Browsing: Users should be able to browse through a list of restaurants, view their menus, and select items for their orders. - Order Tracking and Delivery Status Updates: The app must provide real-time order tracking and push notifications for delivery status updates, ensuring transparency and convenience for the users. Ideal Skills and Experience: - Proficiency in...

I need an Android service developed that continuously captures GPS location data in the background, enabling real-time tracking. Key Deliverables: - A service that can consistently capture GPS location data in the background - even when the app is closed. - The capture precision of the location data should be within 10 meters. - This data must be updated every 5 minutes to ensure accurate real-time tracking. Skills & Experience: - Strong proficiency in developing Android services. - Prior experience with GPS location tracking in background mode. - Demonstrated ability to deliver high-precision location data.

As the owner of a start-up aiming to connect individuals, I'm seeking a professional app developer to bring my vision to life. The platform should be available on both iOS and Android. Key Features: - Messaging: A secure, user-friendly messaging system is essential for users to communicate effectively. - Profile Customization: The ability for users to personalize their profiles with images, information and preferences is key for building a social identity. - Friend Request System: A seamless system for users to connect with others is crucial. It's important that both existing and new connections can be made with ease. Skills and Experience: - Demonstrable experience in developing and launching social apps, with a portfolio showcasing your work. - Proficient with both iOS and An...

I'm looking for an experienced game developer to create a cross-platform open world game with a realistic setting that can be played on PC, Console and Mobile. Key Requirements: - Development for PC, Xbox, PlayStation and Mobile platforms - Create a realistic open world experience - Ensure smooth cross-platform functionality The game should focus on the following elements: - Exploration: Detailed and immersive open world for players to discover - Combat: Engaging combat system that fits the realistic setting - Story-driven missions: Engrossing narrative that drives player engagement Ideal Skills: - Prior experience in developing open world games - Proficiency in multi-platform game development - Strong understanding of realistic game design - Ability to incorporate engaging gamepl...

I am seeking an experienced app developer who can enhance my existing multi-school management application. The upgrades require: 1. User Interface Improvements: - Possess strong UI/UX skills to make the app more intuitive and user-friendly. 2. Live Class Platform Integration: - Must be proficient in integrating and working with Zoom APIs. - The integration should allow users to schedule and join live classes from within the app. Ideal bids demonstrate experience in UI/UX design, app development, and Zoom API integration. Knowledge in education industry-specific applications would be a plus.

I'm in need of an experienced Flutter Developer who can design an application compatible with both Android and iOS platforms. Key features I'm looking to integrate are: - User Authentication - In-App Purchases At this stage, the requirements for SDK integration are open-ended as this question was skipped previously. Please recommend a suitable option you are comfortable with from the following choices: Firebase, AWS, Google Cloud, etc. Familiarity with Playstore submissions is also a must, ensuring a smooth transition from development to publishing. An ideal candidate for this role would have a solid record of creating Flutter applications for a variety of platforms, along with implementing the features listed above. Your techno-functional expertise would be crucial in bui...

Hi, we need a c# .net/ maui package similar to with same functionality but with support for iOS in addition to existing platforms. Please don't ask for further details before you checked the package's page. Requirements: - the package must be able to Convert PDFs into images (save the whole pages to images, not just export existing images on pdf); - the package must provide iOS compatibility; - the package must provide a parameter to specify jpeg compression level and preserve colors; - the package must be developed in c#, compliant with .net/.net framework/Mono and ready to be used in windows/ maui ios & android projects; - the developer must provide c#, not hardcoded and fully commented source code; - the developer can't use third party components except for open so...

As a businessperson venturing into the IoT space, I am in need of an experienced Tuya developer to create an app specifically. Experience in similar projects in Tuya, knowledge of IoT tech trends and skills in user interface design will be key for this project. Your ability to deliver an app that seamlessly integrates these devices, while ensuring user-friendly experience, will be a determining factor for success.

I need a React Native developer to write a code that enables an uninstallation approval feature on both iOS and Android platforms. This feature should prompt a request for uninstallation permission whenever a user wants to uninstall the app. This request is sent to the admin for approval or rejection. The entire approval process must be handled within the app itself. Key Competency Areas: - Proficiency in React Native development - Familiarity with iOS and Android platforms - Experience with creating in-app prompts and notifications - Ability to create admin-controlled features within an app - Strong attention to detail and quality of code. Please submit your bid along with any similar projects you've completed. Prior experience with similar features will be ...

As the lead of this project, I am looking for a proficient Unity developer who can efficiently handle asset delivery on both Android and iOS platforms. The main focus will be on Play Asset Delivery (on demand). Experience in this aspect is crucial as it forms a large part of the project. Additionally, knowledge and skills in iOS on-demand resources are vital too. An essential task will be delivering documentation on implementation. Therefore, first-rate communication skills, attention to detail, and a solid understanding of technical writing are key for this role. Ideal Skills: - Proven experience working with Unity on Android and iOS platforms - Proficiency in Play Asset Delivery (on demand) - Experience with iOS on-demand resources - Excellent technical writing and communication ski...

I'm urgently seeking a reliable and creative React Native Developer to build a unique app for my business. Despite the information gaps, the app should ideally have: - User Authentication: Ensure users can identify themselves before gaining access. - Push Notifications: A tool to engage users. - In-app Purchases: Improve revenue stream. The ideal developer for this project should be proficient in the use of React Native and experienced in incorporating these functionalities. It's a bonus if you have a knack for creating user-friendly designs that encourage interaction and drive profits. Please include: - Examples of your past work, specifically involving React Native. - A detailed proposal defining your approach to this project. - Your overall experience as a React Native Deve...

I am looking for an experienced Android developer to help with a couple of key issues in my app. The primary focus should be on UI improvements. Key Tasks: token refresh functionality ignore battery optimize permission run at startups functionality UI change 2 new api's refactor code for easier maintenance currently displayes persistent notification dont want it Other requirements: - The app's token refresh mechanism must be revised and optimized - You should be able to ignore battery optimization permission I would ideally like a freelancer who is experienced with Java, Android Studio and UI/UX principles. Experience with token refresh mechanisms and battery optimization is also highly desirable. Please provide examples of previous relevant work.

I am looking for a versatile developer to create an ecommerce application that will run on both iOS and Android. The application must include the following features: - Facilitate user registration and profile management - Allow product listing and search capabilities - Include a functional shopping cart and checkout process An imperative aspect of this project is the integration of external payment gateways to support the checkout process. It's therefore essential for the ideal candidate to have previous experience with payment gateway integration. The ability to cross-code for both Android and iOS platforms is essential due to the dual-platform nature of this app.