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

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

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

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

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

De 46,637 opiniones, los clientes califican nuestro Kotlin Developers 4.9 de un total de 5 estrellas.
Contratar a Kotlin Developers

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

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

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

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

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

De 46,637 opiniones, los clientes califican nuestro Kotlin Developers 4.9 de un total de 5 estrellas.
Contratar a Kotlin Developers

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    41 trabajos encontrados

    Tengo mi bot de trading escrito íntegramente en Python, con varios módulos .py ya probados, que se conecta vía API al bróker IQ Option y ejecuta estrategias listas para usar. Lo que necesito ahora es transformarlo en una aplicación nativa que funcione tanto en Android como en iOS/iPadOS. La app debe ofrecer una interfaz de usuario completa —gráficas en tiempo real, botones de compra/venta, panel de configuración— y, al mismo tiempo, ser capaz de seguir corriendo en segundo plano para no interrumpir la operativa cuando la pantalla se apaga. Funcionalidades clave que quiero ver operativas: • Ejecución de órdenes directamente al bróker mediante la API. • Visualización de gráficas ...

    $443 Average bid
    $443 Oferta promedio
    51 ofertas
    Social Networking App Developer
    6 días left
    Verificado

    I’m building a social-networking Android app for a university project and I’d like an experienced developer to help me get it production-ready. The core of the app is simple: users sign up with their email, complete a short profile, and then start connecting with others. Before they can do anything else, I need a robust email-verification flow that sends a one-time link, blocks unverified accounts from accessing content, and handles resends gracefully. My current stack is Android Studio with Kotlin, and I’m leaning toward Firebase Authentication for speed, though I’m open to other secure methods if you can justify them. Once the email gate is solid, I’d like advice on extending the foundation to typical social features—messaging, real-time feeds, or ric...

    $112 Average bid
    $112 Oferta promedio
    10 ofertas

    Attendance Management App with Integrated CRM System (Android + Web Admin) Project Description We are looking for an experienced developer or development team to build a complete Attendance Management Application with an integrated CRM system. The application will be used for managing employee attendance, tracking field staff activity, and managing customer relationships and sales data. The system should include a mobile application for employees and a web-based admin panel for management. Core Modules Required 1. Employee Attendance System Features required: Employee Login / Logout Daily Check-in & Check-out GPS Location Tracking during attendance Selfie Photo Capture at check-in Time Tracking Late Entry Detection Leave Request System Attendance History Monthly Attendanc...

    $157 Average bid
    $157 Oferta promedio
    63 ofertas
    Samsung Tablet POS Development
    10 horas left
    Verificado

    I am building a full-featured point-of-sale app that will run on a Samsung Android tablet. The core of the project is solid order management—dine-in, takeaway, and delivery—so staff can take, save, cancel, and instantly send tickets to the kitchen. The printer workflow is critical: you will need a compatible docket printer on hand to prove every ticket flows from tablet to printer without delay. Once we have a working build I will either buy the same printer model locally or cover the cost of shipping yours to New Zealand, so real-world testing on your side is essential. Beyond orders, the system must capture dietary notes (allergies, vegetarian/vegan, gluten-free, dairy-free) and keep a rolling count of top-selling items so I can spot trends at a glance. Employees will clock ...

    $342 Average bid
    Urgente
    $342 Oferta promedio
    117 ofertas
    Android Kotlin Debug & UI Upgrade
    6 días left
    Verificado

    My Kotlin-based Android app needs attention on two fronts. First, I’m running into “update functionality” issues: certain screens don’t behave as they should after recent code changes, and a clean, crash-free build is now a priority. Second, I want the interface to feel identical to the already-polished iOS version. That means revisiting layout decisions, refining graphics/icons where they look off, and smoothing the overall navigational flow while we’re in there. Think material-compliant but visually in sync with iOS. Once stability is restored, I’d also like you to roll in a couple of small new features lurking in the current product roadmap (all scoped, with designs ready to hand over). Deliverables • Debugged APK and updated source wi...

    $153 Average bid
    $153 Oferta promedio
    124 ofertas

    Saya ingin merilis sebuah aplikasi keuangan di platform Android yang berfokus pada penyusunan laporan keuangan secara otomatis. Intinya, pengguna cukup memasukkan transaksi harian, lalu aplikasi mengolah dan menyajikan laporan laba-rugi, arus kas, serta neraca dalam tampilan ringkas—dengan opsi ekspor ke PDF atau Excel. Cakupan kerja: • Bangun antarmuka Android yang intuitif (Java / Kotlin). • Buat modul pencatatan transaksi sederhana dengan kategori dasar. • Kembangkan engine perhitungan laporan keuangan real-time. • Sediakan fitur ekspor dan bagikan laporan. • Sertakan dokumentasi singkat dan kode sumber terstruktur. Aplikasi harus ringan, kompatibel minimal Android 8, serta mudah dikembangkan lebih lanjut bila kelak saya ingin menambah Pelacak ...

    $17 / hr Average bid
    $17 / hr Oferta promedio
    9 ofertas

    Job Summary : We are looking for a Junior Kotlin Mobile App Developer to support the development and maintenance of our Android applications. As our user base grows, we need a motivated developer to assist in implementing new features, fixing bugs, enhancing UI/UX performance, and supporting quality assurance efforts. This is a hands-on role where you'll work closely with our Lead Developer and Product Team, gaining real-world experience and contributing to live, user-facing projects. This role is ideal for someone with foundational knowledge of Kotlin and Android development who is eager to learn, grow, and thrive in a collaborative, agile environment. Role Summary : Minimum 2 years of Experience is desirable. • Assist in developing and maintaining Android applications using...

    $172 Average bid
    $172 Oferta promedio
    47 ofertas

    PROJECT DESCRIPTION We are looking for an experienced Android developer to build a professional mobile application for location-verified photo and video capture. The application will allow users to capture photos and videos with location-based information embedded directly into the image or video. The goal is to create a reliable field documentation tool that can be used in professional environments such as inspections, infrastructure monitoring, site documentation, and survey reporting. The application will include camera functionality, GPS location capture, metadata overlays, media storage, gallery viewing, and report generation features. This project requires strong experience in: • Native Android development • CameraX API • GPS and location services • And...

    $335 Average bid
    $335 Oferta promedio
    61 ofertas

    ق,صد دارم یک اپلیکیشن اندرویدی بسازم که هستهٔ اصلی آن ارسال و دریافت اعلان‌ (Push Notification) باشد. به یک برنامه‌نویس مسلط به Android Studio و Kotlin یا Java نیاز دارم تا نسخه‌ اولیه‌ای آماده کند که شامل موارد زیر باشد: • راه‌اندازی ساختار پروژه و معماری تمیز • پیاده‌سازی سرویس اعلان‌ها (Firebase Cloud Messaging یا راهکار معادل) • یک رابط کاربری ساده برای نمایش پیام‌های دریافتی • تنظیمات کاربر برای فعال/غیرفعال کردن اعلان‌ها • تحویل فایل APK قابل نصب، کد منبع مستند و راهنمای اجرای محلی اگر تجربه‌ی ادغام سرویس‌های آنالیتیکس یا ویژگی‌های تکمیلی دارید، خوشحال می‌شوم پیشنهاد بدهید اما تمرکز اصلی همان اعلان‌ها است. کد باید خوانا و قابل توسعه باشد تا در مراحل بعد بتوانم ویژگی‌های دیگری...

    $456 Average bid
    $456 Oferta promedio
    66 ofertas

    I need a robust buy-and-sell marketplace built as two fully-native apps—one for iOS (Swift / SwiftUI) and one for Android (Kotlin). Core user flows are product listing, advanced search & filtering, in-app chat between buyers and sellers, and a secure checkout powered by Stripe. The server side will run on Node.js with a MongoDB data store. Please structure the API around REST principles, protect every endpoint with JWTs, and enforce role-based access control so that buyers, sellers, and admins see only what they should. An accompanying web-based admin panel must let me review or remove listings, verify users, and handle dispute management. Key points to cover • Product catalogue CRUD, image uploads, and category / tag search • Real-time chat using WebSockets or an...

    $394 Average bid
    $394 Oferta promedio
    64 ofertas

    Saya ingin membangun sebuah aplikasi media sosial berbasis Android yang dapat segera mulai menghasilkan pendapatan. Fokus awal saya adalah memiliki prototipe fungsional yang memungkinkan pengguna: • Mendaftar dan masuk (email atau Google Sign-In). • Membuat profil dasar dengan foto. • Memposting teks, gambar, dan memberi “like” atau komentar. • Melihat feed beranda yang diperbarui real-time. • Melihat iklan bawaan AdMob sebagai sumber monetisasi pertama. Teknologi yang saya bayangkan mencakup Android Studio, Kotlin, dan Firebase (Auth, Firestore, Storage, serta Cloud Messaging untuk notifikasi). Silakan usulkan pendekatan lain bila lebih efisien, asalkan tetap ramah skalabilitas dan hemat biaya. Kriteria penerimaan: 1. APK debug dan source co...

    $25 / hr Average bid
    $25 / hr Oferta promedio
    13 ofertas

    I need an Android application that allows users to send and receive funds quickly, track their full transaction history, and handle multiple currencies inside a single, clean interface. Security is critical: log-in and every sensitive action must be gated by a traditional password plus a four-digit PIN flow. Core scope • Android-only build, coded in Kotlin or Java and compiled in Android Studio. • Real-time money movement between verified accounts. You may connect to an existing payment gateway or build REST endpoints; either way the transfer must settle instantly in a sandbox environment. • Persistent ledger so users can open “History” and filter by date, currency, or status. • Multi-currency wallet: balances, FX conversion at live rates, and clear...

    $314 Average bid
    $314 Oferta promedio
    91 ofertas

    Saya ingin membangun sebuah aplikasi media sosial berbasis Android yang dapat segera mulai menghasilkan pendapatan. Fokus awal saya adalah memiliki prototipe fungsional yang memungkinkan pengguna: • Mendaftar dan masuk (email atau Google Sign-In). • Membuat profil dasar dengan foto. • Memposting teks, gambar, dan memberi “like” atau komentar. • Melihat feed beranda yang diperbarui real-time. • Melihat iklan bawaan AdMob sebagai sumber monetisasi pertama. Teknologi yang saya bayangkan mencakup Android Studio, Kotlin, dan Firebase (Auth, Firestore, Storage, serta Cloud Messaging untuk notifikasi). Silakan usulkan pendekatan lain bila lebih efisien, asalkan tetap ramah skalabilitas dan hemat biaya. Kriteria penerimaan: 1. APK debug dan source co...

    $39 / hr Average bid
    $39 / hr Oferta promedio
    13 ofertas

    I have an Android Studio project that needs some spring-cleaning before we add a small new feature. First, the housekeeping: • strip out any dead or unused classes, methods, and resources • refactor what remains so the codebase is readable, well-named, and lint-warning free • resolve a couple of known crashes and UI glitches Once that baseline is solid, I’d like a new dropdown on the main screen. It only has to show a static list that ships with the app—no dynamic filtering or server fetches right now—but please wire it so it can be extended easily later. The app is built with Kotlin (with a few legacy Java files), Gradle 8, minSdk 24. I’ll provide Git access and notes on the bugs I’m seeing. Deliverables • Clean compile with zero...

    $36 Average bid
    $36 Oferta promedio
    29 ofertas

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $311 Average bid
    $311 Oferta promedio
    51 ofertas

    Hello, I need an Android developer (Kotlin or Java) for one specific task only: When the camera detects a specific image, a video must immediately play aligned with that image (AR overlay on the tracked image). Speed is critical. Image detection and video playback must be very fast and smooth — not slow like many default implementations. Please check the demonstration video I provided. I need the same speed of detection and video playback shown in that video. I will also provide an Android app example that already achieves the required performance. You may need to create an account on their website to test how the image + video pairing works. Important Requirements: Use ARCore image tracking The video must start immediately when the image is detected The video must stay aligned...

    $28 Average bid
    $28 Oferta promedio
    20 ofertas

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $286 Average bid
    $286 Oferta promedio
    44 ofertas

    Je souhaite développer une première version d’une application mobile exclusivement pour Android. L’objectif est simple : mettre en place une interface basique permettant aux utilisateurs de créer un compte, se connecter et se déconnecter de façon sécurisée. Portée du projet • Architecture épurée, codée en Java ou Kotlin (ou un framework hybride si la performance Android reste optimale). • Écrans essentiels : page d’inscription, page de connexion, tableau de bord vide (placeholder) pour confirmer que l’authentification fonctionne. • Stockage et gestion des comptes via une base de données locale ou un backend léger (Firebase, Supabase ou équival...

    $22 / hr Average bid
    $22 / hr Oferta promedio
    64 ofertas

    Project Overview We are building Enarv, a social platform for readers where users can discuss books, join reading clubs, track books they read, and purchase books directly from the platform. The main platform is already being developed as a web application hosted on AWS. We now want to launch an Android app on Google Play Store that loads our web platform inside a native mobile app. The goal is to create a lightweight Android application that wraps our web app while still supporting important mobile features like push notifications and app-like navigation. --- What We Need We are looking for a developer who can build an Android application using Kotlin that: - Loads our website inside a WebView - Can be uploaded to Google Play Store (.aab file) - Supports push notifications - Feels ...

    $14 Average bid
    $14 Oferta promedio
    43 ofertas

    I need my live B2B fintech portal () rebuilt as a fully-native Android application in Kotlin. The backend—PHP with MySQL—already exposes clean, well-documented REST APIs, so your focus is UI, API binding, and biometric SDK handling. Tech stack & architecture • Kotlin using MVVM or other Clean Architecture patterns • Retrofit for networking and JSON parsing • OTP + MPIN login with device binding, SSL pinning, and token-based sessions Biometric requirement AEPS transactions must trigger the RD Service intent flow for Mantra, Morpho, and Startek devices. Please demonstrate successful capture and response handling for each model during testing. Dashboard behaviour On launch the dashboard must pull data dynamically and show: 1. User account summary ...

    $134 Average bid
    $134 Oferta promedio
    39 ofertas

    I need a complete unilevel-based MLM system that runs primarily through an Android app and sends real-time crypto trading signals to every member—similar in flow to the SignalMax WordPress notification experience I referenced. Core experience Members should be able to register, view their downline, and receive push notifications the moment a new signal is published. An intuitive user dashboard must show current rank, personal volume, group volume, and wallet balances. I also want an admin space where I can issue signals, upload short training videos, manage plans, and monitor overall network health without touching code. Key functions we must hit • User dashboards • Commission tracking with automatic unilevel calculations and daily/weekly payout runs • Sale...

    $69 Average bid
    $69 Oferta promedio
    11 ofertas

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $283 Average bid
    $283 Oferta promedio
    50 ofertas

    Saya sedang mencari bantuan untuk mengembangkan sebuah aplikasi mobile dari nol hingga siap rilis. Fokus utama saya adalah Pengembangan aplikasi, jadi saya memerlukan seseorang yang mampu: • Merancang arsitektur aplikasi serta alur pengguna yang efisien. • Membuat antarmuka (UI) yang intuitif sekaligus responsif di berbagai ukuran layar. • Membangun fungsi inti—mulai dari basis data, log-in, hingga fitur khusus yang nanti kita bicarakan lebih detail. • Menguji aplikasi secara menyeluruh dan menyiapkan build produksi untuk Google Play atau App Store. Saya akan menyediakan wireframe awal dan referensi fitur serupa. Silakan gunakan framework yang Anda kuasai (misalnya Flutter, React Native, Kotlin, atau Swift) selama hasilnya stabil, mudah dipelihara, dan t...

    $36 / hr Average bid
    $36 / hr Oferta promedio
    24 ofertas

    I need a straightforward Android application that lets registered grocery users browse a product pricelist and narrow it down by local brand name. When an item appears on-screen it should show only two fields—price and a short description—so the layout stays clean and readable. Core flow • A user signs up (or logs in) under the single available category: Area in which user is located. • Once inside, they see the full grocery pricelist pulled from a small dataset or back-end of your choice. • A filter control lets them pick the local brand they’re interested in, instantly updating the list in place. • An optional image upload screen is required so that I, as the admin, can attach a product photo or company logo for future use, even though image...

    $318 Average bid
    $318 Oferta promedio
    65 ofertas

    We are looking for an experienced mobile developer (or small team) to build an Android application that captures photos and videos with GPS-based metadata stamping. The application will be used for field documentation and inspection purposes, where each captured photo or video contains reliable location and time information. The project requires clean architecture, stable camera implementation, and accurate GPS integration. Core App Functionality • Photo capture • Video recording • Switching between front and rear camera during video recording • GPS location capture and accuracy verification • Timestamp stamping on photos and videos • Altitude and compass direction display • Offline GPS capture support Media must include a metadata over...

    $326 Average bid
    $326 Oferta promedio
    76 ofertas

    I’m ready to turn a concept into a full-fledged social media experience built specifically for Android. At its heart the app must give users a smooth way to create a personal profile, exchange real-time messages, and share photos or videos as effortlessly as they would on any top-tier platform. I want a clean, modern Material-based interface, fast loading feeds, and a backend architecture that can scale gracefully as the community grows. You’re free to choose the stack you feel is best—Kotlin with Jetpack components, or perhaps Flutter if it still delivers a first-class Android experience—but the end result should look and feel native. If Firebase, AWS Amplify, or your own custom Node/Express + MongoDB setup will get us to reliable authentication, media storage, pu...

    $304 Average bid
    $304 Oferta promedio
    47 ofertas

    Project Title Senior Android + Blockchain Developer Needed to Complete Multi-Chain Crypto Wallet (NEXA BULL) with MLM Integration Project Overview We are developing a multi-chain Android crypto wallet application named "NEXA BULL". The initial Android project structure and basic functionality are already developed, but several features still require completion, optimization, and full integration. We are looking for a highly experienced Android + Blockchain developer to complete the wallet and integrate it with our MLM website backend system. The wallet should function similarly to leading crypto wallets such as SafePal Wallet, Trust Wallet, and MetaMask, supporting multiple networks, tokens, live prices, and secure wallet management. Current Project Status The Android app has alr...

    $35 / hr Average bid
    $35 / hr Oferta promedio
    46 ofertas

    I’m looking to roll out a dedicated Android app that lets my site engineers capture everything that happens on a construction project—while they are still on-site. Core workflow The app opens to a simple dashboard where the crew can: • File a structured daily report (labour, materials, weather, notes). • Attach and annotate unlimited photos straight from the phone camera. • Create, assign, and update tasks so I can track execution in real time. What matters most to me is speed and offline reliability: if there’s no signal, data should sync automatically once the device reconnects. A clean UI that field staff can learn in minutes is critical; think big buttons, clear status indicators, and minimal typing. Tech expectations Android is manda...

    $307 Average bid
    $307 Oferta promedio
    60 ofertas
    $32 / hr Oferta promedio
    138 ofertas

    Quero criar um aplicativo nativo para Android focado na integração com redes sociais. Preciso que o usuário possa compartilhar conteúdo diretamente em plataformas populares e que a experiência seja fluida, rápida e estável. Escopo principal: • Desenvolvimento completo do app para Android, desde a configuração inicial do projeto até a publicação na Google Play. • Implementação de integração com redes sociais (login ou compartilhamento, de acordo com as políticas de cada plataforma). • Código-fonte organizado e documentado para facilitar futuras manutenções. Entrego o layout em alta fidelidade; espero de você a lógica, o ...

    $19 / hr Average bid
    $19 / hr Oferta promedio
    28 ofertas

    I’m building a social-networking experience exclusively for Android and need an end-to-end developer (or team) who can take the idea from wireframes all the way to a polished release on Google Play. Here is what I expect: • Design and implement a clean, modern UI that feels native to current Android versions (Kotlin or Java is fine, Jetpack Compose welcome). • Set up the complete back-end, authentication, real-time data exchange, push notifications and analytics using tools you are most comfortable with (Firebase, AWS Amplify, custom REST—open to recommendations). • Deliver a thoroughly tested APK / AAB plus full source code and clear build instructions so I can compile future versions myself. Acceptance criteria: 1. App installs and runs on A...

    $18 / hr Average bid
    $18 / hr Oferta promedio
    35 ofertas

    I’m building a social-networking experience exclusively for Android and need an end-to-end developer (or team) who can take the idea from wireframes all the way to a polished release on Google Play. Here is what I expect: • Design and implement a clean, modern UI that feels native to current Android versions (Kotlin or Java is fine, Jetpack Compose welcome). • Set up the complete back-end, authentication, real-time data exchange, push notifications and analytics using tools you are most comfortable with (Firebase, AWS Amplify, custom REST—open to recommendations). • Deliver a thoroughly tested APK / AAB plus full source code and clear build instructions so I can compile future versions myself. Acceptance criteria: 1. App installs and runs on A...

    $19 / hr Average bid
    $19 / hr Oferta promedio
    45 ofertas

    I’m building a personal trading companion for Android that lets me size positions before I press “buy”, jot every trade into a structured journal, review my discipline with clear statistics, and keep an eye on total portfolio risk—all without ever sending a single byte to the cloud. Everything lives locally on-device, and the experience has to feel instant, smooth, and pleasant enough for multiple check-ins a day. Core flow • Position-size calculator → user keys in entry, stop, risk % and the app returns exact quantity. • Trade journal → fast form to log entry, exit, notes, screenshots (stored locally). • Performance dashboards → offline calculations of win rate, expectancy, drawdown, etc., with lightweight charts that render flu...

    $274 Average bid
    $274 Oferta promedio
    18 ofertas

    I’m building a personal trading companion for Android that lets me size positions before I press “buy”, jot every trade into a structured journal, review my discipline with clear statistics, and keep an eye on total portfolio risk—all without ever sending a single byte to the cloud. Everything lives locally on-device, and the experience has to feel instant, smooth, and pleasant enough for multiple check-ins a day. Core flow • Position-size calculator → user keys in entry, stop, risk % and the app returns exact quantity. • Trade journal → fast form to log entry, exit, notes, screenshots (stored locally). • Performance dashboards → offline calculations of win rate, expectancy, drawdown, etc., with lightweight charts that render flu...

    $270 Average bid
    $270 Oferta promedio
    19 ofertas

    I’m building a personal trading companion for Android that lets me size positions before I press “buy”, jot every trade into a structured journal, review my discipline with clear statistics, and keep an eye on total portfolio risk—all without ever sending a single byte to the cloud. Everything lives locally on-device, and the experience has to feel instant, smooth, and pleasant enough for multiple check-ins a day. Core flow • Position-size calculator → user keys in entry, stop, risk % and the app returns exact quantity. • Trade journal → fast form to log entry, exit, notes, screenshots (stored locally). • Performance dashboards → offline calculations of win rate, expectancy, drawdown, etc., with lightweight charts that render flu...

    $100 Average bid
    $100 Oferta promedio
    17 ofertas

    Saya membutuhkan seorang developer yang dapat merancang dan membangun aplikasi edukasi berbasis Android. Fokus utama aplikasi ini adalah membantu pengguna belajar materi tertentu melalui konten interaktif dan evaluasi mandiri. Lingkup kerja: • Menciptakan arsitektur aplikasi yang rapi dan skalabel menggunakan Kotlin serta komponen Jetpack modern. • Membuat layar onboarding, pendaftaran, dan login sederhana (Google Sign-In atau email). • Menyusun modul pembelajaran yang mendukung teks, gambar, dan video pendek. • Menambahkan kuis pilihan ganda otomatis-skor di akhir setiap modul untuk menguji pemahaman. • Menyimpan progres pengguna secara lokal; opsional sinkronisasi awan bila waktu memungkinkan. • Menyediakan tampilan dashboard yang menampilkan pela...

    $500 Average bid
    $500 Oferta promedio
    9 ofertas

    I’m ready to bring a brand-new social media experience to Android and need an experienced app developer who can guide the idea from concept to a polished release on Google Play. The core objective is straightforward: design and code an engaging, modern-looking Android application that lets users create profiles, follow one another, post updates (text, photos, or short videos), and interact through likes and comments. I have wireframe sketches that outline screen flow, but I’m counting on you for UI refinement, smooth navigation, and selecting the right tech stack—Kotlin or Java on Android Studio is fine as long as the final build is stable and future-proof. Robust back-end thinking is important too; whether you prefer Firebase, AWS Amplify, or another scalable service, p...

    $11 / hr Average bid
    $11 / hr Oferta promedio
    43 ofertas

    I need a mobile app created for the Android platform. The project starts with refining the concept together and moves through design, coding and final deployment to Google Play, so you’ll be handling the full development life-cycle while keeping me in the loop at each milestone. Feel free to recommend the best tech stack—whether native Kotlin, Flutter, Firebase back end, or another solution—so long as the code remains clean, well-documented and easy to maintain. Key deliverables: • Interactive wireframes or prototype for my approval • Production-ready Android App Bundle (AAB) that meets current Play Store requirements • Complete, well-commented source code and build instructions • Short hand-off session to walk me through deployment and future u...

    $19 / hr Average bid
    $19 / hr Oferta promedio
    143 ofertas

    Saya ingin membangun sebuah aplikasi jejaring sosial khusus untuk platform Android. Fokus utamanya adalah memungkinkan pengguna membuat akun, menambah teman, berbagi status atau foto, serta berkomunikasi lewat pesan langsung—semuanya dengan antarmuka yang ringan dan modern. Ruang lingkup pekerjaan: • Merancang arsitektur aplikasi (Java atau Kotlin, MVVM atau arsitektur setara). • Membangun fitur inti: pendaftaran & login, profil pengguna, feed unggahan, sistem pertemanan, chat realtime, dan notifikasi push. • Menghubungkan aplikasi ke backend pilihan (Firebase, Supabase, atau REST API milik Anda) beserta autentikasi yang aman. • Menyusun UI/UX Android berprinsip Material Design, responsif di ponsel dan tablet. • Menyediakan dokumentasi build, str...

    $19 / hr Average bid
    $19 / hr Oferta promedio
    9 ofertas
    Need develop Android App
    16 horas left
    Verificado

    We are looking for a skilled Android developer to develop our app based on our Figma designs. This requirement is for front-end development only; API integration is not needed at this stage. The app must be built using Kotlin with Jetpack Compose, and the code should follow global coding standards, clean architecture principles, and best practices for scalability, readability, and maintainability. A few screens have already been developed, and the selected developer will be responsible for continuing the work and developing the remaining screens within the existing live project. So, experience working on ongoing projects and understanding existing codebases is important. We expect the developer to work using ChatGPT and Cursor to improve productivity and development speed. Strong expert...

    $5 / hr Average bid
    $5 / hr Oferta promedio
    42 ofertas

    I’m looking for an Android developer who can build a lightweight calculator that handles the four basic operations—addition, subtraction, multiplication and division—and nothing more. The interface can be straightforward; it just needs to look clean on both phones and tablets and pass Play Console requirements without extra permissions. I will give you my AdMob App ID and individual Ad Unit IDs. Please wire them up so ads display properly in the released build and comply with Google policy. When you hand the project back, I need: • A signed, release-ready APK • The corresponding AAB file for Play Console • The complete, well-organised Android Studio source code Everything should compile out of the box and be ready for direct upload to Google Play. Le...

    $195 Average bid
    $195 Oferta promedio
    107 ofertas

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