모바일 개발 Jobs

I need an Android app developed that includes a user login feature. The login method should be via phone number OTP. Requirements: - Experience in Android app development - Proficiency in implementing secure and reliable OTP login systems - Knowledge of user authentication protocols Ideal Skills: - Android SDK - Firebase or similar for OTP - UI/UX design for user-friendly login interface Please provide a portfolio of similar work. Looking forward to your bids!

I’m looking for someone who can quickly turn my idea for a lightweight social-networking Android app into an installable APK with full source code. The concept is deliberately minimal: users create a basic profile, post short text updates, and like or comment on other posts. No advanced media sharing, payments, or location features—just a clean feed that proves the core interactions work smoothly on recent Android versions. Because my budget is only $10, I need tight focus on essentials: straightforward layouts in XML, clean Kotlin (or Java) code, Firebase or another free backend for real-time data, and clear instructions so I can build and publish the app myself afterward. A simple splash/logo screen and basic auth (email or anonymous sign-in) will be enough. Deliverables ...

Tengo una landing page desarrollada en HTML5 puro que funciona sin problemas en escritorio, pero cuando la abro desde un teléfono Android el botón de reproducción de YouTube simplemente no aparece. No se trata de un problema de alineación ni de tamaño: el elemento desaparece por completo en la versión móvil. Necesito que revises el marcado, los estilos CSS y, de ser necesario, el pequeño script que embebe el iframe para que el botón se muestre correctamente en cualquier dispositivo y navegador móvil. Tu solución debe conservar la estructura actual de la página y evitar dependencias pesadas; prefiero un ajuste limpio sobre el HTML5 existente. Entregarás: • El fragmento de código modifica...

I need a cross-device video player built for Android TV, tablets, and phones, replicating the complete experience of MX Player. The core must include smooth subtitle rendering (multiple formats, online/offline), responsive gesture-based controls for brightness, volume, and seeking, plus reliable hardware acceleration so even high-bit-rate files play without stutter. Beyond those headline items, I expect the familiar MX staples—playlist handling, aspect-ratio toggles, background playback, and on-screen codec info—to feel just as polished on all three form factors. A single code-base that detects screen class and adapts its UI is ideal; Jetpack Compose or standard XML layouts are both fine as long as Leanback guidelines are respected on TV. Because I’d like to move quickl...

I need a comprehensive testing of my mobile app on both iOS and Android platforms. Requirements: - Test on the latest iOS version - Evaluate Functionality, User Interface, and Performance Ideal Skills and Experience: - Experience with mobile app testing on both iOS and Android - Familiarity with the latest iOS features and updates - Strong attention to detail and ability to document issues clearly - Experience with testing tools and frameworks Please provide examples of previous work and any relevant certifications.

We are looking for native Dutch speakers from the Netherlands and Belgium to participate in a speech data collection project. Project Overview Record 281 prompts through a mobile application 280 short sentence recordings 1 authorization/name-signing task Takes approximately 40–50 minutes Must be completed by the same participant Eligibility Native Dutch speaker living in the Netherlands or Belgium Android or iOS smartphone Clear speaking voice Quiet indoor recording environment One submission per person only If you have previously completed a similar task through the Shujiajia app, please do not apply Important Notes One step requires you to enter your full first and last name using your phone's touch screen A handwritten signature is not required Duplicate submissions wil...

I have a complete SMS Backup & Restore XML archive containing approximately 20,000 messages spanning about 10 years between two Android users. This includes SMS, MMS, and RCS messages. Goal: Restore this conversation onto the OTHER participant's Android phone so that it appears as a normal conversation thread in Google Messages. Source: Samsung Galaxy S26+ SMS Backup & Restore XML archive Approximately 20,000 messages Mostly SMS Some MMS (photos/videos) Small amount of RCS content (can be converted to SMS if necessary) Destination: Samsung Galaxy S21+ Google Messages Challenge: The backup was created from my phone. Messages are stored from my perspective. To restore the conversation onto the other participant's phone, message ownership must be reversed: Messages I...

I’m running several CPA campaigns that credit only when a user located in the United States or the United Kingdom installs a list of specific mobile apps I will supply. The offers are strictly “app-download” conversions and they track on both iOS and Android, so you’ll need access to real devices (or a compliant emulator that the network recognises) on each platform. Here is what I need from you: • Take the list of apps I provide and install each one from the official App Store or Google Play while connected through a genuine US or UK IP address. • Open the app after installation and complete whatever initial action the network requires (usually just the first launch or a short sign-up) so the conversion fires. • Capture a dated screenshot of t...

Redesign and rebuild the existing fully-working React Native App in both iOS and Android stores which is used to create posts and share images, videos; now it is time for a complete redesign and feature expansion while keeping as much of the existing codebase as possible. I am looking for someone who is good with knowledge of posts sharing, friend requests management, My Profile page, Events creation and guest management, payment integrations, gifting system and integrations with Online platforms, Vendor management. More features will be explained during the discussions. New functionality • Push notifications (Firebase Cloud Messaging is fine, but I am open to alternatives) . Event Management • Secure user authentication (e-mail, Face ID, biometric, PIN) • In-app purchases ...

Looking for a clean, premium, masculine website design. Black, silver and white colour scheme. Modern biotech/performance aesthetic. Mobile-first design. Similar feel to premium supplement brands. Need homepage, product pages, contact page, and WhatsApp integration. Will be selling products individually around 15-20 max. Needs to have a cart and checkout but no payment option, payment will be made via bank transfers at this stage.

My social-networking app is live on both iOS and Android, brief is simple: put the app through its paces and document every insight that relates to usability and overall design and layout. Work through typical new-user flows—sign-up, profile creation, posting, searching, and messaging—then note friction points, confusing labels, dead ends, or visuals that feel inconsistent with modern UI guidelines. Annotated screenshots or short screen-recordings are ideal for illustrating issues. Deliverables • A concise findings report, grouped by screen/flow, highlighting usability hurdles and design inconsistencies • Severity rating for each issue (minor, moderate, critical) • Practical, prioritised recommendations I can hand straight to my dev and design teams ...

Load project to Android Studio and handle exceptions for lead developer. - report developed exceptions to lead developer - see his responses and fix them

I need someone to set up a digital download sales system for our animated series episodes. The episodes should be available on both our website and mobile app. Requirements: - Digital downloads of episodes - Availability on website and mobile app - Payment methods: credit/debit cards and PayPal Ideal skills and experience: - Experience with digital sales platforms - Strong web and mobile app integration skills - Familiarity with payment processing systems

I need help with a third-party app that's crashing on my Android phone. The app crashing issue started after I uploaded spyware on my phone. Ideal Skills and Experience: - Experience in debugging Android phones. - Proficiency in dealing with app issues, especially third-party apps. - Knowledge of spyware removal and phone security. Please provide a detailed plan and timeline for the fix.

I'm seeking an experienced web developer to create a premium industrial website. The site is primarily for product showcasing, with a modern, minimalist design. Key Requirements: - Product showcase - Manufacturing and quality pages - Inquiry forms (basic contact info, detailed quote requests) - WhatsApp integration - SEO optimization - Mobile responsiveness - Easy-to-manage backend for future growth and lead generation Ideal Skills and Experience: - Strong portfolio in industrial websites - Expertise in minimalist design - Proficiency in SEO and mobile optimization - Experience with WhatsApp integration and user-friendly backend development Please provide examples of similar work done and an estimated timeline.

I need a mobile app for swing trading stocks, developed for both iOS and Android platforms. The app must include real-time stock data. Ideal skills and experience: - Mobile app development for iOS and Android - Experience in financial applications - Real-time data integration - UI/UX design for trading apps Please provide samples of relevant work.

Front-End Developer (React + TypeScript) — Improve Our MVP Website About the project We've built the MVP of a real estate marketplace website, mostly using AI tools. It works but we need an experienced developer and UI/UX experience to make it look and feel premium, polished, and professional before we go live. Scope About 12-15 core pages: homepage, search results, listing detail, the "post a listing" flow, edit listing, user profiles, etc. We can discuss more in detail later and can also share the references of other websites what level we are aiming for. This is front-end task only. The backend is already built, working, and integrated so we don't need any backend work. Tech stack we are using: React 18 + TypeScript (Vite) Tailwind CSS + shadcn/ui React Ro...

pop-up that appears only after a user arrives via a click from Google Ads on our website on ios iphone. The pop-up will freeze the ios device screen with a number to call Key points I have to hit: • Trigger only for traffic that carries Google Ads parameters (gclid, etc.). Organic, direct, or referral users must never see it. • Fire instantly on page load, no scroll or time delay. • Overlay must lock the rest of the page to prevent interaction until the user taps the call button or closes the window. • Must work smoothly in Safari and Chrome on current iOS versions without being blocked by built-in pop-up protections. • Code should be modular—one HTML/CSS/JS snippet I can drop into any page, with clear comments and a short read-me so I can adapt the...

RSH Connect – Smart QR-Based Business Management Platform Project Overview I want to build a professional SaaS-based web platform called RSH Connect that provides QR-based access control, attendance management, customer management, and business operations automation for Study Hubs, Libraries, Gyms, Coaching Centers, Coworking Spaces, and similar membership-based businesses. The platform will consist of two major sections: 1. Customer Portal For customers/members of partnered businesses. 2. Partner Business Portal For business owners who join the RSH Connect network and manage their operations through a dedicated dashboard. --- Main Website Structure Navigation Menu - Home - Features - Become a Partner - About Us - Contact Us - Login - Register Brand Logo RSH Connect ---...

I have just upgraded to Zen Cart v2.0.0 and installed a new theme (Wookie). Since the switch, two things need immediate attention: 1. Layout & visual tidy-up • Some page elements refuse to line up and the menu occasionally breaks when viewed on tablet or mobile. I need these alignment quirks ironed out so every page—home, category, product, checkout and account—renders cleanly across modern browsers. 2. GST calculation bug • GST is not being added to Australian orders that end up in the abandoned-cart state. It should trigger automatically for Australian customers only and nowhere else. Once fixed, totals, tax reports and abandoned-cart reminders must all reflect the correct GST figure. Acceptance criteria • Pages display without broken menus o...

I’m ready to move forward with a dedicated Android application and need an experienced mobile developer to turn my concept into a polished, Play-Store-ready product. The focus is Android only for this first release, though I’m open to discussing a future iOS build once we’ve proven the idea on Google’s platform. Here’s what I’m looking for: • End-to-end development: wireframes, UI/UX, coding (Kotlin or Java), testing, and deployment. • Clean, well-documented code that I can easily maintain or expand on later. • Integration of any required APIs, push notifications, analytics, and in-app purchase modules if they make sense for the feature set. • A short post-launch support window to catch bugs and handle the first minor iterati...

I’m planning an Android app designed to make everyday life a little easier by connecting ordinary people with a supportive community. The core idea is simple: users open the app, find others facing similar challenges, share advice in real time, and access curated help resources. Here’s what I need from you: end-to-end Android development—from refining the concept and mapping the user journey, through clean, well-documented Kotlin or Java code, all the way to a polished, Play-Store-ready build. Reliability is crucial; regular progress updates and tested, maintainable code matter as much to me as the final feature set. Because community and support sit at the heart of the product, experience with chat systems, push notifications, secure user authentication, and scalab...

We need a custom React Native native module or an integrated wrapper package that allows our application to upload photos, videos, and audio files from the user’s camera roll/local storage to a remote server. The absolute most critical requirement is robust, uninterrupted background uploading that survives app closure and system standby. Scope of Work & Requirements Cross-Platform Compatibility: Must work flawlessly on both iOS and Android. File Formats: Full support for images, large video files, and audio recordings. Background Resilience: Must leverage OS-native background tasks (like Background App Refresh configurations on iOS and WorkManager or foreground services on Android) to continue uploads when the app is minimized or closed. Chunked/Resumable Uploads: Support for mul...

## Project Description Develop a secure cross-device synchronization system for an existing React web application and React Native mobile application. The applications store machine-learning generated data locally, including face embeddings, vector embeddings, media metadata, and versioning information using IndexedDB (Web) and SQLite (Mobile). The objective is to enable automatic synchronization of data between a user's authorized devices while minimizing network usage and avoiding full database transfers. The solution should support Web-to-Mobile, Mobile-to-Web, and Mobile-to-Mobile synchronization through efficient device discovery and bi-directional data exchange within the LAN/Wifi network. The synchronization process must transfer only new or updated records, prevent duplicat...

VEER NETWORK MVP WEBSITE REQUIREMENT DOCUMENT Project Name: Veer Network Objective: Create a simple, low-cost MVP website that connects customers with local Veers (representatives) and allows the admin team to manage profiles and enquiries. User Levels: 1. Veer 2. Shoorveer 3. Mahaveer 4. Paramveer For MVP, only Paramveer will have admin access. --- PUBLIC WEBSITE PAGES 1. HOME PAGE Sections: - Company Introduction - What is Veer Network - How It Works - Benefits for Customers - Benefits for Veers - Contact Information - Submit Requirement Button - Find Veer Button --- 2. FIND VEER PAGE Features: - Search by State - Search by City - Search by Area - Veer Listing Each listing should show: - Photo - Name - Area - Services - Contact Button - View Profile Button --- 3. VEER P...

My backup phone - a Galaxy S20 Ultra is currently frozen behind a forgotten screen password/PIN, yet it is fully mine and I can provide the original proof-of-purchase immediately. I need the handset unlocked without triggering a factory reset because every contact, message, photo and video stored on the internal memory must remain intact. Deliverable - to be done online ofcourse , you give instructions and I follow • Device unlocked and booting to the regular One UI home screen, all data present. Timeline is flexible for a truly safe solution, but the sooner I can reach my data the better.

I need a focused Android build that lets users sign up or log in securely and receive real-time push notifications. The core of the job is to: • set up robust user authentication (email / password and social login options are both fine as long as they follow current Android best practices); • wire the app to a reliable push service—Firebase Cloud Messaging is my default choice, though I’m open to an alternative if you can justify it. Everything else—UI polish, extra features, store submission—can follow later. For now, I want a clean, well-structured codebase that I can extend. Please use Kotlin where possible, document the key classes, and make sure the build runs without errors in Android Studio. Deliverables 1. Full Android Studio project folder re...

I’m building an Android app that must ship with truly robust, “ethical-hacker-grade” protection. The single most important piece is a custom security module that monitors everything users do inside the app and flags anything suspicious. Here’s what I need you to deliver: • A lightweight, unobtrusive activity-monitoring component that captures user behaviour events in real time. • Intelligent tracking logic: distinguish normal navigation from potentially risky actions, then push those events to my existing backend through secure, encrypted calls. • Clear, well-structured code (Kotlin or Java) plus concise documentation so I can maintain and extend the module later. • A quick demonstration APK and companion README showing how to plug the c...

I’m ready to build a brand-new website and I’m looking for a developer who can guide the entire process—from picking the right stack to launching the finished site. While I haven’t locked down the specific category (e-commerce, portfolio, blog, or something hybrid), I do know I want a modern, responsive experience that loads quickly, looks professional on every device, and is easy for me to update afterward. Here’s how I picture the collaboration working: • You’ll advise on the best platform or framework based on my goals and budget. • Together we’ll map out the site structure and user flow, then turn that into clean, mobile-first page designs. • You’ll build the front-end and any required back-end or CMS functionality, t...

I need a fully-functional modded APK for an existing Android utility app. The goal is simple: strip out every advertisement, unlock all premium features that normally sit behind a paywall, and apply a fresh custom theme so the interface feels cleaner while still matching the original layout. Because I use the app daily, stability is critical. The patched build must install over the current Play-Store version without forcing me to uninstall, preserve my user data, and launch without triggering Play Protect warnings. Please keep the original package name and signature scheme unless there’s a technical reason to re-sign—just let me know first. I’m looking to receive: • One signed, ready-to-install APK (latest app version) • A brief changelog or notes outlinin...

I need an Android application (APK only, no iOS for now) that can automatically accept incoming Rapido and Ola ride requests the moment they appear, then surface a simple confirmation screen to the rider. Core workflow • User opens the app and signs in with Firebase Authentication. New users must verify their phone number through an OTP flow. • From the home screen the driver can toggle Ola or Rapido acceptance on or off independently; when a service is switched off, no rides from that platform should be auto-accepted. • Whenever the toggle is on, the app stays in the foreground/background (your call on the best technical approach) and listens for ride offers. Matching offers must be auto-accepted in milliseconds, mimicking the speed of native Ola / Rapido acceptanc...

I rely on an auto-clicker to keep the Ola Driver app running smoothly, but the latest Ola update now shows a screen-wide blocker that stops any touch automation. I need a developer who can give me back that hands-free convenience. Here’s what I’m after: if you can simply unblock my current auto-clicker, great. If that proves impossible, then I’m happy to commission a brand-new Android app that reproduces the same auto-click features while cleanly bypassing the new blocker. I’m unsure whether I still have full source code for the existing tool, so please plan for both scenarios. Core requirements • Seamless auto-click functionality inside the newest Ola Driver build • Reliable bypass of the overlay/blocker screen introduced in the recent update &bul...

I need a purpose-built CRM for my vehicle-tracking and fleet-management business that runs smoothly in any modern browser and on iOS / Android devices. The workflow is already mapped out: • A live Dashboard that shows every new activity the moment it happens. • A Wall Board where staff can scroll through past activities, complete with time stamp, client name, vehicle number and all related notes. • Forms to add and edit vehicle details in required format at any time. • Full device inventory management with complete history, plus SIM management with its own change log. • Clients Management system. • Create jobs for technicians and it will popup to them and they can enter the data from mobile and come to main app, then user authenticate data and go i...

I'm seeking an experienced web developer to create a premium industrial website. The site is primarily for product showcasing, with a modern, minimalist design. Key Requirements: - Product showcase - Manufacturing and quality pages - Inquiry forms (basic contact info, detailed quote requests) - WhatsApp integration - SEO optimization - Mobile responsiveness - Easy-to-manage backend for future growth and lead generation Ideal Skills and Experience: - Strong portfolio in industrial websites - Expertise in minimalist design - Proficiency in SEO and mobile optimization - Experience with WhatsApp integration and user-friendly backend development Please provide examples of similar work done and an estimated timeline.

I need an Android app for auto rickshaw drivers in Bangalore. Features: QR code scan for fare calculation, Bangalore rate Rs.36 for 2km then Rs.18 per km, waiting charge per minute, live GPS location sharing for family, share auto for school students with monthly payment, admin panel to edit rates, Razorpay UPI payment, automatic daily driver settlement. Budget Rs.50000. Source code must be given to me. Bangalore developer prefer

I’m looking for a developer who can build a dedicated Android application focused on social networking. The core goal is to let users connect, share updates, and interact easily on their phones. Key expectations • Design and develop the full Android app, from splash screen to main social feed. • Implement standard social features such as user sign-up/login, profile pages, posting, likes, and real-time chat or commenting. • Ensure a clean, modern UI that feels familiar to Android users and follows current Material Design guidelines. • Code must be well-structured, documented, and ready for future updates. I will provide the brand name, color palette, and any required graphics once we start. Please outline your preferred tech stack, estimated timeline, and...

I'm seeking an experienced app developer to create a unique platform designed to connect lonely individuals seeking cuddles with gig workers. Key Features: - Prioritize gig worker registration - User profiles with pictures, bios, and a rating/review system - Verification methods for gig workers: ID verification and social media verification Ideal Skills and Experience: - Mobile app development expertise - Experience with user profile and verification systems - Strong UI/UX design skills - Background in secure registration processes Please provide a portfolio with your bids. Looking forward to your proposals! I will tell more details to anyone who accepts!

My Android app requests the “Phone Permission – Overlay permission (show on top)” as part of its very first-run onboarding. I need fresh eyes to verify that this flow behaves correctly across a wide range of devices, with special attention to brands that ship heavily customised Android builds such as Huawei, Xiaomi, Oppo, Vivo, OnePlus and other lesser-known or non-standard models. Scope • Install the current release from scratch on each device you have access to and walk through the entire onboarding once. • Observe every prompt related to the overlay permission: wording, order, visibility, and whether the user is taken to the correct system screen. • Note any brand-specific quirks (e.g., hidden toggles, additional confirmation pages, or manufacture...

Core App Idea When a customer opens the application: Step 1 — Search The user sees a search bar. Customers can search for: * itineraries * travel packages * hotels * transport/logistics * destination-based services Examples: * “Manali package” * “Kerala honeymoon” * “Munnar trip” * “hotel in Manali” * “transport in Kerala” The app should immediately show: Package Options Destination-specific packages with: * pricing differentiation * package highlights * trip duration * inclusions * logistics support The user should have the option to either: 1. Choose a fixed package, OR 2. Customize the itinerary and logistics based on budget Step 2 — Detailed Itinerary Planning The core idea is a day-wise itinerary planning sys...

Preciso de um aplicativo para Android e iOS que controle um torrefator de café via TCP/IP. O aplicativo deve se conectar via Wi-Fi. Funcionalidades principais: - Monitoramento da temperatura - Controle de tempo de torra - Relatório de histórico - Salvar e replicar perfis de torra de forma autônoma Habilidades e experiências ideais: - Desenvolvimento de aplicativos móveis (Android e iOS) - Experiência com conectividade TCP/IP e Wi-Fi - Interface de usuário intuitiva - Histórico de trabalho com aplicações de monitoramento em tempo real Por favor, forneça exemplos de projetos semelhantes concluídos.

Busco a alguien que desarrolle una aplicación Android llamada OMEYO que brinda servicios de reparacion para los hogares centrada en un flujo de compra sencillo y seguro. Esta en pausa. Lo que necesito: • Pantalla de catálogo y detalle de productos. • Funcionalidad completa • Integración de procesamiento de pagos con tarjetas de crédito/débito Valoro experiencia previa en apps e-commerce, buenas prácticas de UI/UX y manejo seguro de datos. Si además puedes sugerir mejoras opcionales menciónalo en tu propuesta.

My online Matka-play application is fully developed and ready for release in the Entertainment category, with every permission and licence already in place. What I need now is a reliable partner who owns an established (“old”) Google Play Developer Console and is willing to publish the app for me on a monthly-rental basis. Here’s how I see the collaboration working: you upload the APK/AAB to your console, complete the listing that I supply (screenshots, description, privacy policy, etc.), and keep the app live and compliant. Each month I send you the agreed rental fee, and you provide me with the standard Play Console statistics so I can track installs, crashes and revenue. Whenever I push an update, you simply replace the build and roll it out. Deliverables • In...

I need an Android-only application that lets me record purchases, instantly total them, and then share each person’s share with friends in just a tap. The flow I have in mind is straightforward: enter an item, assign it to one or more people, have the app keep a running subtotal and grand total, and finally push the results out through the native share sheet (WhatsApp, SMS, email, etc.). Core functions
 • Billing & totaling: a clean screen for adding items, prices, quantity, tips or taxes, with automatic calculations.
 • Sharing with friends: once the bill is closed, the app should generate an easy-to-read breakdown that I can send or export (PDF, text, or link—whichever is fastest to implement). Tech notes
 • Native Android (Android Studio, Kotlin or Jav...

Help beta test our WearOS game. Highest score wins $50. We’re looking for beta testers for Techu on the Chair, a fast 5x5 strategy card game for WearOS smartwatches. Play the game on your watch, submit your highest score as a screenshot to here, win $50 for the highest score. The game is simple. There are 25 spaces. . Take turns playing cards. Cards must connect back to your home row. The person with the most amount of spaces wins! Fast time wins this contest. To join, comment or DM me, and we will add your email address to the beta testing list. You must have a smartwatch with WearOS (Pixel, Samsung, etc) Learn more about Techu on the Chair by visiting