Android Mobile Applications jobs

As a client, I'm currently experiencing an unspecified "controller not found" bug in my Laravel application. Unfortunately, I haven't been able to determine any exact error messages, affected pages/routes, or recent application changes that could be related to the issue. I'm looking for an experienced Laravel developer with the following skills: - Debugging and troubleshooting Laravel applications - Comprehensive understanding of Laravel controller structures My main goal is to have the current bug fixed efficiently and professionally. Don't hesitate to ask if you have any questions. Please include any similar Laravel bug fixing experiences in your proposal. Your ability to describe the possible problems based on the lack of specific error information...

...Here the process ends. Overall, we expect the developer to be independent and to have experience in developing complex and automated applications in Django. We perform extensive code review, expect well-documented code, test-driven development and expect optimised code. This application is business critical and should be stable and secure; we cannot tolerate any downtime or bugs. We also require that the developer signs a non-disclosure agreement and transfers the intellectual property before any payments are made. When responding to this project, please provide extensive information about: - your experience with developing comparable complex applications in Django and web design - please also include your portfolio that is relevant to this project - please also reflec...

I'm looking to transfer my existing Laravel application to WordPress, where I'm primarily needing user registration and login functionality. I don't have a specific theme in mind, so your creative suggestions will be much appreciated. Here are the skills and experience I'm ideally looking for: - Proven experience in converting Laravel applications to WordPress - Strong knowledge of WordPress and comfortable suggesting suitable themes - Experience in creating user login and registration systems on WordPress If your background aligns with these requirements, I am eager to learn more about how you would approach this task. Please bid with relevant examples of your work.

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 seeking an experienced, intermediate-level tutor who can assist me with understanding and mastering linear differential equations and elementary differen...differential equations. - Ability to explain complex concepts in a simple and understandable manner. - Patience and ability to adapt teaching style to the student's needs. I prefer to receive tutoring through online sessions. Ideal Skills and Experience: - Proven experience in tutoring differential equations, especially linear and elementary ones. - Good understanding of the principles and applications of these concepts. - Strong ability to teach effectively in an online setting, ensuring clear communication and understanding. Please ensure you have a portfolio or past experiences that demonstrate your proficiency...

...deliver a user-friendly, customizable orientated dashboard that pulls and represents data in real-time using Python and Salesforce. This task will require: - Tracking and visualizing loan applications, sales revenue (interest income), and franchise performance among other metrics. - Representation of fintech franchise lender-related metrics such as concentration by brand, average loan amount across our portfolio, target brands, US state-wise brand distribution in our franchise portfolio. - Highlighting lead conversion rates and time intervals from application to funding and status updates on total applications, approvals, declines, and those pending. - Displaying data in the form of bar charts, line graphs, and pie charts for a comprehensive understanding and clean aesth...

I require the development of an Android Java Studio App designed for entertainment purposes with an emphasis on task management as a core feature. Specifications: - The application must be built using Android Java Studio. - It should ideally support up-to-date Android versions. Experience with Java programming language, Android SDK, and Android Studio IDE is crucial. Core Features: - Entertainment aspects to be discussed in greater detail at a later stage within the project. Creativity and ideas for entertainment-focused applications are a definite advantage. Task Management Features: - The app must primarily include the ability to manage tasks. While specific functionalities were not listed, potential features of interest could be creating t...

I am looking for: - An expert Swift/Kotlin developer with in-depth understanding of the Mobile App Development, as well as Firebase. - The app will be developed for both iOS and Android platform. - I have a Figma design and DB structure. - You should be an individual reliable/honest developer. Agencies will be declined automatically. - You need to sign a NDA to get started. - If you're proficient with all these specifications, you could well be the professional I'm looking for.

Create Gaming Dating Mobile App (Ex.- Hello Yo & Ludo Play Room etc.)

I'm looking for a professional who can train an AI system for me. The aim is to accurately measure the areas of house roofs using open source satellite imagery or other similar sources. ...accuracy in measuring house roof areas - Ensure that the system is geared towards roof repair or replacement estimation - Focus on specific geographical regions for training data, tailored to my needs Ideal Skills and Experience: - Strong background in AI and machine learning - Experience in working with satellite imagery or similar data sources - Prior knowledge of training AI for specific applications, such as roof area measurement - Ability to create a flexible system that can be easily adapted to different regions - Clear understanding of the importance of high measurement accuracy for t...

I'm in need of a mobile application for both iOS and Android that allows users to capture the food additives list (code numbers) on a product packaging using their phone's camera. The core functionality of the app should involve the following: - Image Recognition: The app should be able to accurately scan and recognize the text from the image of the additives list. - Text Analysis: Automatically provide the official and layman descriptions of all the additives. - Health Impact: The app should also have a feature that provides known health impacts of each additive. Key Features: - Cross-Platform: The app should be developed for both iOS and Android, ensuring a wider reach. - Minimalist Design: The user interface should be simple and minimalist to ensure ease...

I am on the hunt for a skilled logo designer to create a distinct and memorable logo for my business. The design should incorporate the colors purple and light orange to align with our brand identity. KEY REQUIREMENTS: - Proficiency in graphic design and applications like Adobe Illustrator or Photoshop - Eye for aesthetics and detail - Able to incorporate our color choices into the logo design - Produce a sample or a draft design for discussion It's preferable if you could provide links or files of your past work, especially in logo design. Expertise and experience in the field would be highly favored. We hope to wrap up this project within a month, so time-management and ability to meet deadlines is key.

I'm in need of a skilled PHP CodeIgniter Developer to help me debug my existing application. Key Points: - The main goal of this project is to fix bugs within the current applicati...is to fix bugs within the current application. Therefore, I require someone with a strong background in troubleshooting and debugging. - I'm specifically looking for a developer with extensive experience in PHP CodeIgniter. Therefore, please highlight your experience in this specific framework when you apply. Ideal Candidate: - Proficient in PHP CodeIgniter - Proven experience in debugging applications - Strong problem-solving skills - Excellent attention to detail - Ability to work independently and efficiently Please make sure to include your experience in your proposal. Looking forward ...

...products to sell are UAVs, bearings, and titanate material (e.g. brake). The ideal candidate will have: - Experience selling to the automotive and industrial manufacturing sectors - Know related product importation process, import duty, custom clearance, local transportation - Homologation if any - A strong network and knowledge of these regions - Familiarity with the specific products, their applications, and market demands Your role will involve selling these items to your local customers, establishing a steady sales channel for my products in these regions. Let's collaborate and create a mutually beneficial partnership. I also have sponge product with a super nice price. Or you have some exsiting channel, I could provide your local products. Or another way around, I be...

I urgently need a mobile app for travel developed! - The app should be compatible for Android and iOS. - The main goal is to create a platform that supports travel-related services. - The exact features will be discussed later but they will likely include, but not be limited to, features like flight and hotel booking, city guides and maps, language translation and more. - Experience in e-commerce app development will be a plus, as this app will include booking and purchasing functionality. - Ideally, I'm looking for someone who has previously worked on similar travel apps. Please bid only if you can commit to a fast-track development process, as completion of the project is needed ASAP.

I am looking for a dating application in flutter with admin panel using node js. I don't want to use firebase as the operating cost will become high. So need a solution which will be cost friendly in terms of monthly/yearly operating cost.

I am in need of a...of a Telegram bot that can provide user registration and efficiently store and retrieve data from a Firebase database. Key Responsibilities: - Implement a user registration system directly on the Telegram bot interface itself. - Develop a clear and efficient data storage and retrieval process from the Firebase database. - Ensure that the bot can handle user profiles, user activity logs, and applications in the database. Ideal Skills and Experience: - Proficient in Python, especially for developing Telegram bots. - Extensive experience working with Firebase databases. - Prior projects that involve implementing user registration systems. - Strong understanding of data storage and retrieval systems. - Good communication skills to ensure the system is implemented ...

...MOSSE with SCRFD for Java Android 2) Implement it in our app by replacing MLKit and connect it to our engine 3) Replace our engine with ARCface The App must be fast and robust. For the 1st milestone deliverables... implement MOSSE tracking with SCRFD for Java Android running the C++ libs. Create a demo app that runs detection and tracking and: 1. shows boxes and tracking ID for each face detected. 2. model size 3. fps 4. face confidence 5. screen resolution 6. Allow the app to run on Android's both front and back camera 7. add a zoom feature if supported by the device's camera. 8. add an option to upload and process recorded videos. no need to do ui/ux design key point is to integrate c++ library with android app Need to do some test before start Chec...

...comprehensive web and mobile application built. This project's goal is to manage service logistics from requesting to delivering. Some key features I need are: - User Management: Implementation of user registration/login, user roles, and permissions, and user profile management are essential. - Service Request Management: An efficient system for creating new service requests and assigning them to specific users or teams. Furthermore, being able to track the status and progress of these service requests is crucial. - Real-time Notifications: The applications should notify users in real-time as changes or updates are made. Advice on the best technologies to use for these functionalities is also needed. Ideal candidates for this job have experience building similar w...

...vehicle control device that have or will have the technologies described in the “Technology Description” section below. <Technology Description> This technology arbitrates between control commands acquired from driving support applications that respectively implements driving support functions, outputs instructions based on a control command after arbitration to a processor that is able to control at least one of a brake actuator or a drive actuator. This technology also acquires a steering angle and a yaw rate as the control commands from the driving support applications. Please search for this technology in this contest. <<NOTICE>> The target car brands in this search are limited to US, European, Chinese, and South Korean brands. <Req...

I'm seeking an experienced app developer who can assist me in enhancing existing features in my existing mobile application. It has been available on both IOS and Android for 4+ years, and I need the following enhancements: - Improve app’s existing feature set, to run as intended: The app has a few feature sets with inconsistencies or tend to be unreliable. Enhancements and overall App should be fine tuned for improved responsiveness, and a better customer experience. - Soften existing UI found within Communications: Modify the content being sent within email communications, with consistent interface populated with the appropriate details drawn from the App. - Admin Dashboard - surface additional details in the existing dashboard, that are already captured i...

I'm looking to create a custom CRM platform that leverages NFC card technology, and an accompanying iOS app. Here's a breakdown of the p...user engagement - User Portfolio: Users should be able to customize their interface with links, contact information, and product displays - **iOS App Development:** I need an iOS app to complement the NFC interface and provide a seamless user experience across different platforms. Ideal candidates for this project should have: - Proficiency in developing both NFC card interfaces and iOS applications - Experience with payment processing integration - Strong background in access control and user management systems - Familiarity with loyalty program implementation - Excellent communication skills to understand and implement the use...

I'm in need of a skilled developer to create a group chat client for me. The client will primaril...message, signaling their attention. Additional Features: - File Sharing: The ability to share files within the chat would be a very useful feature. - Chat Moderation Tools: I'd like the chat to have basic moderation tools to oversee the group chats and manage user interactions. Ideal Skills and Experience: - Proficiency in text-based chat client development - Experience in developing group chat applications - Familiarity with user mention functionalities - Ability to integrate file sharing within the chat - Understanding of chat moderation tools If you feel confident in your ability to deliver this project with all the key features and additional functionalities I requir...

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More details: What platforms would you like the auto-rickshaw booking app to be developed for? Both What specific features should be included in the app? Real-time tracking, Integrated payment system, User rating system Do you have any design preferences for the app? Minimalistic and clean We can book auto using mobile phone, online through web portal and kiosk in the exhibition.

...organization and writing polished proposals to earn Ontario & Federal government grant money. The Grant Writer will identify, define and develop funding sources to support existing and planned program activities as well as lead the development, writing, and submission of grant proposals to the Ontario/Canadian Federal Government. Primary responsibilities include preparation of proposals and grant applications, and performance of responsible professional and administrative work in researching, identifying, developing and responding to Ontario/Canadian grant opportunities in areas that support IT, Digital Marketing & SEO programs. Essential Functions * Understand the history, structure, objectives, programs and financial needs of our organization. * Research grant oppor...

We are in search of an intermediate level Java developer with in-depth knowledge on multi-threading. The main task presents a for loop which needs to be partitioned between n number of threads. Your skills and experience should include: - Solid understanding of Java programming language - Hands-on experience with multi-threading in Java - Proven experience with running Java applications with multiple threads To ensure your competency for the task, applicants should provide documentation of past work specifically highlighting instances with similar programming challenges. Join us in this interesting endeavor, let's make the code more efficient together!

I'm on the lookout for a skilled Flutter developer to create a cross-platform (iOS and Android) restaurant application with intuitive and user-friendly interfaces. This app serves as a comprehensive solution for consumers to view menu options, order meals online, and make reservations seamlessly. Key features of the application: - Menu Display: Should allow customers to easily browse various menu categories and individual meal descriptions. - Online Ordering: Requisite infrastructure for placing orders online, including a secure payment process system. - Reservation System: Must include a highly-efficient table reservation system with instant confirmation. Ideal Skill set: - Extensive knowledge and experience with Flutter app development - Strong fluency in Dart program...

I need an Android IPTV development along with a user-friendly panel. - The application should have a user-friendly interface that is easy to navigate. - It should support live streaming capabilities in high quality. - A Video-on-demand library should be integrated to provide a variety of content for viewers. The panel should come with the following functionalities for user management: - User subscriptions management: allowing the administration of user accounts and subscriptions. - Multi-user access control: enabling different levels of access for various users. - User activity tracking: to monitor and analyze user engagement with the platform. Ideal candidates for this project should have experience in: - Developing Android applications, particularly in the field o...

The database is on the National Environmental Agency's website, and it includes all of the applications submitted for environmental permits. Here is a link to the database: Please go over all of the records, and filter ones that match all criteria: 1. EIA Screening Application/Statement or EIA Scoping Application/Statement and 2. The application is for an activity in the sea Start a new spreadsheet, and for every such record, meeting the above criteria, add a row to the spreadsheet including: date of the record, screening/scoping, title of the application (translated to English), a url linking to the application on the NEA website. In addition, download the screening/scoping report document, translate it to English with Google translate

WRITE HTML CODE. CONTENT AND PHOTOS INCLUDED. GENERIC DESCRIPTION TO BE USED ON ALL LISTINGS.

I am currently seeking a virtual assistant to help me with my job hunting in the technology sector. The role of the virtual assistant will primarily involve: - Job application submissions: The ideal candidate should be proficient in submitting job applications online, particularly for senior-level positions in the technology industry. This includes customizing cover letters to match job descriptions and ensuring that all required documents are submitted. Sharable resources: - resume - guide doc. Salary: $25 per week Responsibilities: - open job board platform accounts with my profile - apply for 200 proper jobs matching my profile every weekday - record them in the google sheet. Requirements: - fluent English is a must - prior experience working on similar stuff - software engin...

I'm looking for a ...app to effectively and securely gather logs from IoT devices. - Access Control Management: It should have the ability to manage and control access to the security system. Logging Mechanism: - The application should be able to log activities from sensors and smart home devices effectively. Ideal skills and experience: - Strong Python programming skills, coupled with experience in security applications. - Proficiency in designing and implementing robust intrusion detection systems. - Prior work on IoT device integration and data gathering. - Experience in access control management is a plus. - Understanding of secure logging mechanisms. In your bid, please include examples of similar projects you've completed and let me know how you plan to tackle th...

I require your expertise for an end-to-end testing of my Ruby on Rails application. Inclusive of all the components, which are Models, Controllers, and Views. Knowledge and usage of MiniTest, Simplecov, and Capybara for the testing frameworks are also required for thi...end-to-end testing of my Ruby on Rails application. Inclusive of all the components, which are Models, Controllers, and Views. Knowledge and usage of MiniTest, Simplecov, and Capybara for the testing frameworks are also required for this project. Key features for testing: - User Authentication - Database Queries - Form Validation The ideal candidate would be someone experienced with Ruby on Rails applications, fluent in the use of multiple testing frameworks, and specializes in identifying and rectifying potential...

...frameworks or libraries, and the main purpose of the project. This could mean I need help on multiple fronts. So, I'm seeking an experienced JavaScript developer with broad expertise including but not limited to: - Debugging - Code optimization - Designing interactive web elements - Working with commonly used frameworks such as React, Angular, and Vue.js - Creating dynamic web pages - Building web applications - Enhancing user interactions Your bid should reflect your ability to handle a wide array of tasks and complexities. As we move forward, I will provide more detailed information about the specific tasks at hand. Here is the task: I have a website (online store mock up) almost done (on my local computer). But few issues I still have with the Contact Us form (ema...

I'm looking for a savvy salesperson who can help sell machine blades designed for food processing in the USA market. It's a niche product category, so prior experience in the industry will be highly beneficial. Ideally, I need someone who has: - Familiarity with different types of machine blades and their applications. - An understanding of food processing machinery and industry requirements. - Previous success in selling industrial products, particularly in the USA. - A proactive approach, great communication skills, and a strong network in the food processing industry. This is a fantastic opportunity to leverage your industry connections and expertise in a novel product area. Let's get these machine blades cutting through the market!

I'm seeking the expertise of a Laravel developer who's at least a beginner but possesses a solid understanding of ...at least a beginner but possesses a solid understanding of user authentication, database integration, and payment gateway integration. The primary goal of this project is to build a web application. Skills and Experience Needed: - Beginner to intermediate level experience in Laravel development - Proficient in user authentication methods - Understanding of database integration within web applications - Familiarity with integrating payment gateways This project offers an opportunity to apply and further develop these essential web development skills. Your input will be absolutely crucial in taking this web application from concept to a tangible, fully fun...

...intermediate-level Node.js developer who can help me in building a server-side API and real-time applications. Key Responsibilities: - Develop server-side API: You will be responsible for creating a robust server-side API that can handle data requests efficiently. - Build real-time applications: You should have experience in developing real-time applications that provide seamless user experience. Ideal Skills and Experience: - Hands-on experience with Node.js and server-side development. - Familiarity with real-time application development. - Proficiency in using frameworks like , , and will be a plus. - Prior experience in building scalable and performant applications. - Intermediate level of experience and expertise in Node.js development. If you have...

I'm in need of a skilled UI/UX designer to take my social media application from wireframe to a fully functional iOS application. The primary skills and experience needed for this project are: - Experience in transforming ideas to prototypes and applications - Proficient in iOS app design - Strong understanding of User Interface and User Experience design - Portfolio showcasing previous work in applications or social media - Ability to implement user profiles and authentication, in-app messaging, content sharing and posting, shopping, infinite scroll, photo and video edit If you think you fit the job description, message me with your portfolio and I'll provide more details about the project.

...Photoshop, Sketch, and Figma - Proven experience as UI/UX Designer or similar role - Strong leadership skills - Capable of working under pressure, meeting tight deadlines Title: Senior UI Designer (Team Lead) Job Description: As a Senior UI Designer and Team Lead, you will lead a team of designers in creating intuitive, visually appealing, and user-centric interfaces for both web and mobile applications. Your expertise in user interface design, combined with your leadership skills, will be instrumental in driving the design process, fostering creativity, and ensuring the delivery of high-quality design solutions that meet the needs of our users and business objectives. Key Responsibilities: 1. Team Leadership: - Lead a team of UI designers, providing mentorship, gui...

I am in need of a bilingual static responsive website that will be solely one page in length. The site will be designed in both English and French, and should be optimized for basic SEO. Note : have the content ready. website is based on AI and design should be reflecting the same. Key Requirements: - Programming Languages: HTML, CSS, JavaScript - SEO Optimization: Basi...design should be reflecting the same. Key Requirements: - Programming Languages: HTML, CSS, JavaScript - SEO Optimization: Basic SEO optimization is required, please include the best practices for this in your plan. When applying, please include: - Past Work: I would like to see examples of your previous projects, especially those related to single page websites. I am looking forward to your applications...

...create a suite of applications. Firstly, we will need a web application, a mobile application, and an enterprise application developed. These are crucial tools for our business operations and customer interactions. In terms of functionalities, I require the following: - User authentication: The applications should have a secure login system. - Data storage and retrieval: The ability to store data and retrieve it when needed. - Integration with third-party APIs: Seamless integration with external APIs is a must. I'm expecting a relatively small user base initially, but these applications should be scalable and able to handle growth. Ideal candidates would have: - A strong background in low-code development - Experience in building web, mobile,...

...rectify improper error handling, ensuring that user-friendly error messages are displayed and errors are logged for debugging purposes. - Address server banner disclosure, to enhance the security of the application. - Modify CORS configuration to prevent misconfigurations and enhance security measures. I am looking for an expert who is well-versed in AWS, particularly in working with applications. The ideal freelancer for this job should have: - A thorough understanding of AWS services and its integration with Next.js. - Proficiency in addressing security vulnerabilities, in particular server banner disclosure and CORS misconfiguration. - Excellent troubleshooting skills, to quickly identify and rectify improper error handling. Time is of the essence and I need this project ...

I'm looking for a skilled developer to create a comprehensive, easy-to-use ERP software tailored to the gold and diamond j...functional e-commerce website and application. - POS: A point of sale system for store transactions. - WhatsApp Features: Integrating WhatsApp for customer communication. - Reminder and Offers: Sending reminders and offers to customers. - Mobile Application: Developing a mobile application for store management and billing. The ideal candidate should have experience in: - ERP system development. - E-commerce software development. - Creating mobile applications. - Working with CRM, Credit, and Finance Management systems. - Integrating WhatsApp features into applications. - Developing POS software. Please provide examples of pr...

I have a physical part for a radio that I need to be 3D modeled for printing. The item i... so the complexity is relatively low. Key Requirements: - Create a 3D model suitable for 3D printing based on the physical part provided - Design should be simple with basic shapes, ensuring it's ready for printing - Provide the final design in a file format that is compatible with most 3D printers Skills and Experience: - Proficiency in 3D modeling software, particularly for 3D printing applications - Experience in reverse engineering or replicating physical parts into 3D models - Understanding of designing simple parts with basic shapes - Ability to deliver high-quality designs ready for 3D printing Please include any relevant portfolio items or previous experience in similar projec...

I'm in need of an Android App developer who has a deep understanding of troubleshooting and resolving video playback issues, particularly with MP4 format. Currently, videos within my app are buffering and failing to load fully, which disrupts the overall user experience. - Competencies Required: - Extensive experience with Android App development - Specific experience in handling video-related issues in Android apps - Deep knowledge of MP4 video format in relation to app integration Your task is to diagnose and rectify this issue ensuring smooth and complete video playback. I would appreciate if you include your diagnostic plan in your proposal.

I'm seeking help with my job applications on LinkedIn. I'm interested in applying for product management jobs. Key Requirements: - Apply for product management roles on LinkedIn on my behalf - Assist in tailoring cover letters and resumes to specific job postings - Should have a good knowledge of the LinkedIn platform and job application process Ideal Skills and Experience: - Proven experience in job application assistance - Strong communication and writing skills - Familiarity with LinkedIn's job application process - A good understanding of the job market in the LinkedIn industry.

I'm seeking an experienced Android developer for a major interface update to my app. We need to facilitate a better user experience through user interface design enhancements and additional features. Key project aspects: 1. UI Design Updates: - Specifically, I want to improve the layout and navigation of my existing app. This process requires an innovative approach to enhance user experience and navigation flow. 2. Adding New Features: - Although I'm open to your expert suggestions for new features, the direction was not specified upfront. Potential freelancers must be proficient in Android development with a keen eye for intuitive, modern design. Working remotely, your ability to maintain clear communication for updates and changes on a shared session i...

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: - Refactoring and enhancing the UI of my Android app - Improving the layout and design, including color scheme and branding, typography and font styles, iconography and visual elements - Ensuring a smooth navigation flow - Enhancing user interaction and feedback 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 pro...

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: - Refactoring and enhancing the UI of my Android app - Improving the layout and design, including color scheme and branding, typography and font styles, iconography and visual elements - Ensuring a smooth navigation flow - Enhancing user interaction and feedback 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 pro...