Mobile browser blackberry jobs

Project Title: Continious Speech Conversation Function Description: Simply replicate this on the frontend Our app is curretnly using push to talk function where as the backend is fully functional.

We are seeking a skilled developer to create a mobile app designed for performing a mathematical magic trick. The app will involve complex calculations and data handling to reverse engineer a sequence of mathematical operations based on user input, ultimately revealing specific playing cards with pre-determined ages and birth years. Key Features: User Input: Users will input a final large number and a chosen multiplier (1-10). Reverse Calculation: The app will perform reverse calculations to derive intermediate values and ultimately the user's birth year. Data Mapping: The app will map calculated results to corresponding birth years, ages, and specific playing cards. Deck Arrangement: The app will indicate the correct position of playing cards in a deck based on calculated re...

I'm a looking for a freelance Flutter developer to assist with my mobile app project. The app is aimed at the general public and requires a few key features: - User Authentication: The app should have a secure user login/signup system. - Push Notifications: Implement a system to send push notifications to app users. - Integration with Databases: The app should be able to store and retrieve data from a database. The primary goal of this project is to create a fully functional mobile app. I'm looking for an experienced Flutter developer with expertise in these specific areas. The ideal candidate should have a solid understanding of mobile app development, particularly with Flutter, and have experience with database integration and push notifications. A good e...

...efficient as possible. This will be achieved through the development of a cross-platform mobile application. The app will be crucial in managing and processing orders in real-time, as well as providing a seamless experience for our customers. Key features for the mobile app should include: - Online ordering system: This should be easy to use and navigate for our clients. - Service appointment scheduling: We want a feature that allows clients to book maintenance services in advance. - Real-time chat support: For immediate assistance and feedback. The ideal freelancer for this project should have a strong background in market analysis and business development, as well as extensive experience in mobile app development across multiple platforms. Experience in the HVAC...

...issue with a particular JavaScript function for an agency's portfolio website. The function is meant to update webpage elements each time the back button is clicked from the browser, but when the back button is clicked to return to the homepage, part of the function does not run, causing the animation to break and posts not to load. I'm in need of a freelance web developer with considerable JavaScript experience and in-depth knowledge. The key task will just be to improve this function so it runs each time the homepage is loaded or returned to. Key Requirements include: - Vast experience in JavaScript - Proficient in browser compatibility issues - Keen attention to functionality and performance detail Your role will be to diagnose the issue, remedy it, confi...

Hi, I am looking for the top developer who can develop a auction site with features and customize other necessary features for the frontend & backend. Need to have good sense of UI designing. Requires Live Streaming integration Reference site

Objective: Develop an audio-video chat module using WebRTC for Android and iOS platforms. The module should facilitate real-time communication between users with support for audio and video streams. Platform Req...video from their gallery Send an animated gif via integration with Tenor or similar Start a video call with the timer It will disconnect after 1 hour. Start an Audio call on the timer It will disconnect after 1 hour. Report a user for any reason See if their messages have been read by participants Record and upload voice notes Virus scanning on all uploaded files before storage in S3 buckets Mobile notifications for each message (controllable by the user in their settings) Send and receive emojis please read & then apply with the cost & timeline. Start your ...

I'm looking for a talented game developer to create a captivating word search game for mobile platforms, specifically iOS and Android. This game is intended to be highly detailed and animated, so experience with creating visually engaging mobile games is a huge plus. Key Requirements: - Development for Mobile Platforms: The game should be compatible with both iOS and Android, ensuring a wide audience reach. - Visual Excellence: The game is expected to have highly detailed and animated graphics. A strong portfolio showcasing similar work would be highly beneficial. Optional Requirements: - Social Features: While I'm open to the idea of incorporating social features within the game such as leaderboards, player profiles, or in-game chat, this is not a strict...

More details: What platform(s) do you want the mobile application to be compatible with? Both What main functionality should the application have? It is for disabled people transportation and dining in restaurants What specific features should the application have for disabled people transportation? Wheelchair accessibility information, GPS tracking for disabled-friendly transportation, Communication with drivers and reserving and dining in restaurants friendly fir disabled people

I'm looking for a skilled Magento 2 developer who can help me with a couple of issues I'm facing on my website. - The first concern is related to JavaScript errors. I'm encountering undefined variable errors, syntax errors, and function not defined errors on the browser console. These errors seem to be causing some functionalities on my website to malfunction, and I need someone who can quickly identify the root cause and provide a solution. - The second issue is regarding CSS layout problems. My website is not displaying properly due to CSS issues. It seems like the layout is not consistent across different pages. The ideal candidate should be able to fix these CSS problems, ensuring a smooth and consistent user experience. Ideal skills and experience: - Proficie...

...Online Exam Module: Create and manage online exams with customizable parameters (e.g., time limits, question types). Provide tools for question creation, including multiple choice, short answer, and essay questions. Enable automated grading for objective questions and manual grading for subjective questions. Ensure security measures to prevent cheating, such as randomized question orders and browser lockdown. Result Management: Record and manage exam results. Calculate grades and generate report cards. Provide analytics and insights into student performance. Fee Management System: Record and manage fee structures for different classes, including tuition fees, exam fees, and other charges. Allow for online payment processing with various payment gateways. Generate invoices, rec...

I need a savvy freelancer who can write in-depth and compelling reviews about educational mobile apps posted on MouthShut. Here's what will suit you for this job: - Proficiency in writing clear, concise, and grammatically correct reviews - Good understanding of mobile application especially in the educational field - Familiarity with MouthShut platform and their review format - Ability to critically analyze apps and spin a review in a positive light Your role will involve: - Downloading and understanding the use of the assigned educational apps - Penning down objective reviews, including both strengths and weaknesses of the app - Publishing the reviews on MouthShut This will be an ongoing project, so reliability and punctuality are key. Familiarize yourself with the a...

I'm looking to develop a hardware system for a fitness rig that involves real-time human movement tracking. The system should be a combination of microcontrollers and computer vision technology, specifically using Arduino boards and Raspberry Pi. Key Requirements: - Real-time Movement Tracking: The primary functionality of the system is to track human movement accurately and in real-time. This involves capturing and processing data on various physical activities. - Minimalistic and Functional Design: I envision a setup that is small, lightweight and unobtrusive. Skills and Experience Needed: - Proficiency with Arduino boards and Raspberry Pi is a must. - Experience with computer vision, machine learning and human movement tracking is highly desirable. - Understanding of ...

I need a skilled freelancer to create a click bot intended for mobile devices, mainly for Google Ads, to aid in ad testing for paid advertising. Key Requirements: - The bot should simulate mobile device interactions accurately, especially with Google Ads campaigns. - It should be able to interact with a variety of ad types, including banner ads, video ads, and interstitial ads. - The bot should be able to distinguish between different types of ads and follow a set of predetermined actions to simulate real user behaviour. Ideal Skills: - Proficiency in bot creation and automation for mobile devices. - Experience in working with Google Ads and understanding of how they function. - Strong understanding of paid advertising, particularly in the context of ad te...

I'm looking for an experienced developer to create a dynamic property search portal with Andriod and IOS mobile application / Apps. Website similar to property portal. Using laravel flexhome to customize IOS and Android application will be associated with the website. The project entails creating a seamless user experience, allowing individuals to search for real estate properties across different sectors - residential, commercial, and industrial. Below are some key requirements: - **Advanced Search Filters:** The portal should offer users advanced search filters, facilitating precise property searches. This may involve filters based on price range, location, property type, and more. - **Property Listings:** It's important for the site to have a large database of ...

I'm looking for an experienced Android and iOS programmer who can help to convert ...is a tests programme been using with some other features to work at cell phones . Key Requirements: - Successful conversion: I need the program to be fully operational on both Android and iOS devices to be able to edit qustions at the future. Ideal Experience: - Proficiency in both Android and iOS development. - Proven track record of converting PC programs to mobile platforms. - Ability to optimize user interface to suit mobile devices. The user interface design is somewhat important to me. I expect a clean and functional design, but I'm open to suggestions and improvements from someone with expertise in this area. Please provide examples of similar projects you've work...

As someone who cares about the safety and integrity of my software, I am currently in search of a skilled ethical hacker. Your task would primarily involve: - Performing network testing on our Android mobile application - Executing robust vulnerability assessments to identify potential weaknesses - Conducting comprehensive web application tests to ensure overall security Ideally, you would have an extensive background in ethical hacking and previous experience with Android mobile applications. It's important that you are familiar with contemporary network infrastructure and can proactively target potential threats. Your task will fundamentally influence the security of our app and its users, so thorough diligence and a keen eye for detail are critical. Please only app...

...expert to optimize my website's mobile version. The desktop version is running at 95% speed, but the mobile version is significantly slower, scoring only 66%. I need the mobile version to be optimized to match the desktop speed ASAP. We already use the paid plugin WP Rocket. Key Requirements: - Improve mobile page speed significantly to match the desktop version. - Prioritize optimization of images, heavy themes or plugins, and unoptimized JavaScript and CSS. - Ensure the mobile version is fully functional post-optimization. Ideal Skillset and Experience: - Proficiency in WordPress and understanding of mobile optimization techniques. - Strong experience in optimizing images, videos, themes, plugins, and JavaScript/CSS. - Proven track reco...

Hi Freelancers, UPDATES: I CAN PAY ONLY 7000 DONT BID AND WASTE YOUR TIME AND MY TIME IF YOU ARE NOT OK WITH MY I need a iOS andAndriod platforms Mobile App with payment gateway...mostly target audience are Andriod users. From scratch to publishing the app. I need a genuine freelancer who should not miss use any of my personal details and payment related details in future..if I come across any problems in future..I will report to the freelancer to take the action... I have attached requirements... I need a complete iOS and andriod mobile app..till publishing the App in Google play store.. I can only pay the above mentioned payment only... I may have more projects in the future..if i like the work..I may hire directly.. Thanks I need a seasoned developer to

I'm seeking a proficient front-end HTML developer to manage an entire website development project. The ideal candidate should have expertise in: - Front-end Development: You should have a solid grasp of HTML and be able to craft responsive designs. - Frameworks and Libraries: Famili...able to craft responsive designs. - Frameworks and Libraries: Familiarity with Bootstrap, jQuery, and React is essential, as these will be used in the project. - Site Implementation: The successful candidate will be responsible for overseeing the complete implementation of the site. You should be able to translate design mockups into fully functional websites, ensuring smooth navigation, cross-browser compatibility, and responsive design. A keen eye for detail and a strong work ethic are crucial...

Greetings everyone, I'm reaching out to gauge interest in a collaborative effort to recreate a game (check the link below) with an Australian Football twist: This is the current game I've been playing. I've already compiled a list of team names and their respective locations. Additionally, player names could be generated using AI, and we can introduce simulated gameplay with states for each player that can be at random. If this idea intrigues you, I'd love to discuss it further. Feel free to reach out, and let's explore the possibilities together! Cheers!

I need a straightforward solution that allows users on both Windows 10 and 11 to download documents via either email or browser links. Project description: Set up Win10/11 so that the download starts comfortably when you click on an FTP URL link on a website (various browsers) or in mail clients (e.g. Thunderbird). After setting it up once, it should no longer be necessary to enter the FTP access data again. The FTP server expects Explicit SSL/TLS (port 21). The link/URL typically has the following structure: ftp://ftp_username[at] Either the user should be asked where he wants to save the download file, or it is permanently saved in the settings. Ideally, well-known applications are used for file transfer, such as WinSCP, FileZilla or MS File Downloader

I'm looking for a professional to help me in developing a mobile app for WhatsApp chat handling. The app will be used for managing and responding to incoming messages. Key Points: - The primary task of this project is creating a mobile application that will enable me to manage WhatsApp messages efficiently. - The app doesn't need to automate replies based on keywords - I will be sending manual replies only. - The app needs to have an easy-to-use interface for message management. Ideal Skills and Experience: - Proficiency in mobile app development, particularly for iOS and Android. - Prior experience with chat-based applications or messaging platforms. - Strong understanding of WhatsApp's API and its integration into mobile apps. - Ability to de...

The search feature for addresses on our website, powered by Google Maps, is currently not functioning as expected. We are seeking a skilled developer to diagnose and resolve this issue pr...malfunction, and rectify it accordingly. - Thoroughly test the search feature to ensure it is functioning as intended across various browsers and devices. Ideal Skills and Experience: - Proficiency in JavaScript, particularly with Google Maps API. - Experience in debugging and troubleshooting web applications. - Strong understanding of web development and browser compatibility issues. Please note: The user did not provide information on the browser used, changes to the website code, or any error messages. Therefore, the task requires a comprehensive and systematic approach to identify a...

I've been facing an issue with the images on my WordPress website that only load after I scroll down on mobile devices. Ideally, I need them to load as soon as the page is loaded without any delay. Key Requirements: - Immediate image loading on mobile devices - No specific plugins for image optimization or lazy loading Ideal Skills and Experience: - Proficiency in WordPress development - Experience in optimizing websites for mobile devices - Understanding of image optimization techniques If you're confident in resolving this specific issue and improving mobile user experience, I'd be glad to hear from you.

I'm looking for a skilled app developer to create an e-commerce mobile app specifically for the iOS platform. Key Points: - The primary goal of this app is to facilitate e-commerce transactions on iOS devices. - The app should effectively integrate with e-commerce functionalities such as product listings, shopping carts, and payment gateways. - The design should be user-friendly, visually appealing, and optimized for iOS devices. Ideal skills and experience: - Proficiency in iOS app development. - Experience in e-commerce app development is a strong advantage. - Familiarity with creating user-friendly and visually appealing mobile interfaces. - Ability to integrate payment gateways securely. - Good understanding of the e-commerce industry is a plus.

I'm in search of a professional app developer with expertise in mobile app development and NextJS, as I have two projects lined up. Key Project Details: - I'm looking for a cross-platform mobile app that works efficiently on both iOS and Android platforms, alternative to presenting a plastic card. This will be the primary focus of the development work. - The application will have a primary feature that I will disclose during our discussions. Ideal Skillset: - Extensive experience in mobile app development, particularly within the realm of cross-platform apps. - Proficiency in NextJS is a must as one of the projects involves its usage. - A good understanding of user experience and user interface design will be an added advantage. The app will link to our s...

I'm seeking a skilled developer to build an Android mobile application that enables users to create AI images presented as trading cards. A key idea is to provide a personalized avenue for the generation of unique trading cards based on user specifications. Key Functionality: - AI algorithm that generates images tailored to look like trading cards. - A selection tool for choosing trading card themes. User Interaction and Features: - User profiles: The app should support registration and profile customization to enhance user engagement. - Social Media Sharing: The application should come with an inbuilt capacity for users to share their trading cards on major social media platforms. - Virtual Marketplace: A unique feature of the app will be a virtual marketplace where users ...

I'm looking for a skilled developer to bring my web-based project to life with interactive animations and custom shaders. Please send me a bid with your previous works. Key Project Details: - The ideal candidate should have a st...would be a definite advantage. - You will be responsible for creating interactive animations with fluid motion, character animations, and scroll animations. - Having worked on similar projects where custom shaders were utilized is a major plus. This project focuses on elevating user experience through engaging interactive animations. It's crucial that the final product is optimized for a web browser environment. Please include relevant examples of your work in your application. I'm looking forward to seeing how we can bring this project ...

I've encountered an internal server error on my website when accessing a specific page. This issue is particularly critical as some of my visitors are unable to access my site due to this error. While some visitors can browse the website, others are completely blocked. Key Project Details: - The error is...visitor access, with some able to view the site consistently and others unable to access at all. - The problem is particularly urgent as it is directly impacting my site's usability. Skills and Experience Needed: - Proficient in troubleshooting common internal server error causes. - Experience in addressing website access discrepancies for users based on their internet service provider or device/browser. - Ability to work under time-sensitive conditions to restore full...

I'm in need of a skilled web designer to help me enhance the mobile responsiveness of my website.

I'm in need of a professional who can create an advanced mobile monitoring app that is compatible with Android. The app should have the following features: - Live location tracking - Access to SMS and call logs - Social media monitoring - Screen recorder - Microphone access - Access to photos & videos I am looking for a freelancer who can ensure that the app provides full access to the target phone's data for comprehensive monitoring. The successful candidate should have experience in creating similar apps and should be able to guarantee the security and privacy of the data collected. Skills required: - Android App Development - Mobile Security - Data Encryption - Experience with phone monitoring apps It's important that the app is user-friendly and di...

Fix the fonts on mobile as shown in the screenshots

I'm in need of a skilled Flutter developer to create a mobile translation app that integrates with a third-party service, not a translation engine. The app needs to be compatible with both iOS and Android platforms. Key Features: - Text translation: Users should be able to input text and get translations in real-time. - Voice translation: The app should support translation via voice input. - Image translation: The app should allow users to scan images using their device's camera for translation. Additional Requirements: - The app should have user accounts and profiles with data storage capabilities. Ideal Skills: - Proficient in Flutter - Prior experience with mobile app development - Experience with integrating third-party services - Familiarity with translatio...

I'm in need of a skilled WordPress developer who can help me in optimising my WordPress site, https://feufo.com. I require a comprehensive set of services that include: - Speed Optimisation: My website needs to load faster. This includes improving the page load time, optimising server response time, and minimizing browser render time. - SEO Optimisation: I need to enhance my website's SEO with a focus on keyword research and optimisation. In addition, I'd like assistance in creating a privacy page on my website. This page should clearly outline the privacy policy of the site and be in line with current legal requirements. Ideal candidates for this project should have: - Proven experience in WordPress site optimisation - In-depth understanding of SEO strategies...

This price is only to post this project. Price will be discussed after providing full requirements. I need a browser extension developer for Chrome and Firefox for long term. I have so many projects in my mind to start. So, I am looking for developer for long term. Key Requirements: - Development of a Browser extension for Chrome and Firefox - Primary function should be automation, scraping etc.. - More details will be provided to the selected Freelancer. New freelancer who have expertise in this skills can also apply and they will get the opportunity to work in a long term project and they will get good reviews to boost their profiles. Thanks.

I'm in need of a skilled web designer to help me enhance the mobile responsiveness of my website. Key Requirements: - See attachments for mobile formatting instructions (mobile only, desktop view should not be modified) Ideal Skills and Experience: - Experience in designing and optimizing websites for mobile devices is a must. - Proficiency with HTML, CSS, and website design principles is essential. Please pay careful attention to the details provided in the attached markup and follow the instructions closely. It's important that you follow the direction given to maintain the overall aesthetic and functionality of the site. I look forward to seeing your proposals.

...This includes the name, date of birth, nationality, and any other relevant data. - The system should support Turkish passports primarily, but it would be a plus if it could also handle passports from other countries. Working principle: _ The mobile application will read the passport from the mobile camera, and the application will read MRZ lines. - The mobile application will generate a passkey (from mrz lines) to read the RFID passport. - The mobile application will send the passport data to a given web service. Ideal Skills and Experience: - Mobile App Android application development. - Proficiency in RFID technology and passport reading mechanisms. - Previous experience in developing similar systems. - Knowledge of Turkish passport formats and RFI...

...development of APIs and their integration into a mobile app. Key Tasks: - Developing APIs: The primary task is to develop APIs that are robust, secure, and efficient. - Mobile App Integration: The APIs need to be seamlessly integrated into a mobile app, ensuring that they function optimally and provide a smooth user experience. Skills Required: - Proficiency in NodeJs: The ideal candidate should have extensive experience working with NodeJs to develop APIs. - Mobile App API Integration: Previous experience integrating APIs into mobile applications will be a strong advantage. - Android and iOS Development: Being able to develop APIs for both Android and iOS platforms is essential for this project. Your expertise in API development and mobile ...

...and functionality of my automobile website. Your responsibilities will include creating and executing test cases, and documenting any issues encountered during the testing process. Key Responsibilities: - Creating comprehensive test cases to cover all necessary aspects of the website - Executing these test cases efficiently - Thoroughly documenting any issues found during the testing process Browser & Device Compatibility: You will be required to test the automobile website on the Chrome and Safari browsers. Please ensure that the website is fully functional and visually appealing on these platforms. Ideal Skills and Experience: - Prior experience in manual testing, especially in the domain of e-commerce or automobile websites - Proficiency in creating and executing test c...

I'm looking for an experienced developer who can create a web and mobile application for a community-based project. This is a multifaceted project with a variety of requirements that aim to promote user interaction and engagement within the platform. Features & Modules: - User Registration & Login: A seamless process that allows users to sign up and access the platform with ease. - Messaging System: A built-in messaging system that enables users to communicate with each other. - Forums for Discussions: A space where users can create and participate in discussions, fostering a sense of community and collaboration. Third-party Integrations: - Payment Gateway: Integration of a payment gateway to facilitate any financial transactions that take place within the platform. ...

I'm in need of an experienced UI/UX designer with hands-on Developing skills using ReactNative. The mobile app will be developed for both Android and iOS platforms. Looking for support for Revamp work. If you're well-versed in these elements and have a knack for intuitive, user-friendly design, I'd love to see your portfolio and discuss this further. Location - Bangalore Ideal skills: - ReactNative development experience - UI/UX Design - Android and iOS development References of projects with a modern and sleek design would be a plus.

...Wordpress knowledge to revamp our website with a focus on user experience, website traffic increase, and mobile optimization. The ultimate aim is to appeal more to my B2C consumer base. Key Aspects: - Improve navigation: Make the site more user-friendly ensuring smooth navigation across all pages. - Increase page load speed: Ensure the site runs faster with optimized codes that guarantee speed and superior performance. - Mobile Optimization: With a considerable amount of traffic coming from mobile users, the site should be seamlessly responsive on all device types. Ideal Skills: - Proven experience in Wordpress development and design upgrade - A strong understanding of UI, cross-browser compatibility, and general web functions. - Proven application of spe...

I'm in need of a professional mobile tester to ensure my app runs smoothly and user-friendly across all devices. Key Responsibilities: - Perform functional testing on both Android and iOS operating systems - Execute usability testing on smartphones, ensuring a seamless user experience Skills and Experience: - Proven experience in mobile app testing is a must - Good knowledge of both Android and iOS platforms - Prior experience with usability and functional testing - Attention to detail and ability to identify issues - Experience with testing on smartphones This is a fantastic opportunity for a detail-oriented tester to be a cornerstone in the quality assurance phase of our project. Your expertise will be essential in guaranteeing the app's success, so please mak...

...want is a simple, yet engaging question-based game for the mobile platform. - **Game Theme**: The game should be designed around a theme or subject matter that can captivate a broad audience, including kids, teenagers, and adults. Therefore, a versatile and engaging theme is essential. - **Game Mechanics**: The core gameplay loop of the game is centered around presenting the player with a question on the screen, along with four possible answers. The player must select the correct answer out of the four options. The game should be designed in a way that the questions are challenging, but not insurmountable. - **Platform**: The game will be primarily developed for mobile devices. It's crucial that the game is optimized for mobile play in terms of user interf...

I am in the market for a skilled and experienced mobile app developer who can design an e-commerce app for both iOS and Android platforms. Fundamental Elements: - A functional and intuitive shopping and delivery app with different vendors Key Competencies: - Proven experience in e-commerce app development - Expertise in building apps compatible with iOS and Android - A keen understanding of user experience and app functionality to create a simple yet efficient shopping app system Your goal will be to deliver a high-quality, user-friendly e-commerce app that prioritises a smooth shopping experience for users. If you are knowledgeable in this domain and have a knack for creating effective e-commerce platforms, I would be interested to hear from you.

There is issue with content loading that needs to be boosted performance wise.

...app or separate apps for iOS and Android. Your insights and expertise in this regard will be greatly appreciated. - The primary function of the app is to load a specific website URL. In addition to this, the app should have a menu at the bottom of the screen with 5 specific links that will be provided. - The website URL should be loaded within the webapp itself, rather than opening in a separate browser. - The app should be user-friendly, responsive, and optimized for both iOS and Android platforms. Ideal Skills and Experience: - Proficiency in app development for both iOS and Android - Previous experience with webapp development - Understanding of hybrid app development - Knowledge of user-friendly design and user experience - Ability to optimize apps for iOS and Android platfo...

I'm looking for a skilled AR developer to create an engaging augmented reality experience aimed at improving product visualization. The main goal is to allow users to view and interact with my products in an innovative way. The AR experience needs to be targeted specifically for mobile devices, ensuring a broad reach for potential customers. Key Requirements: - Expertise in AR development and mobile platforms - Previous experience in creating engaging product visualization experiences - Ability to design and implement an interactive AR system - Familiarity with automatic context-based interaction in AR The successful freelancer will need to bring a creative touch to this project, ensuring that the product visualization is not only accurate but also captivating for the ...

I'm in need of a skilled app developer to bring my taxi booking app vision to life. The app's primary function is to allow users to book taxis. Key Features: - GPS Tracking: The app must have a GPS tracking feature to locate user's positions and taxi locations. - Payment Integration: Users should be able to make payments through the app. - Driver Ratings: The app should allow users to rate drivers after their ride. If you have experience with taxi booking app development, especially in integrating GPS tracking, payment gateways, and ratings systems, I'd love to hear from you. Please include any relevant work you've done in the past.