Kotlinpekerjaan

I’m planning to release a new Android-based game and need a developer who can take it from concept to a polished APK on Google Play. The project is purely mobile—no web or iOS components—so your focus will be on Android Studio, Java / Kotlin or a preferred game engine such as Unity or Godot. Here’s what I have in mind: • Core gameplay loop, menus, and simple in-app sound effects • Clean, responsive UI that scales well across common screen sizes • Integration of basic ads or rewarded video (AdMob or similar) • Documentation plus full source code so future updates are straightforward Once the first playable build is ready, I’ll test it on a range of devices and send feedback; we’ll iterate until the final version is sta...

...other apps are open. It can receive and execute commands from notifications or voice input while running in the background. The app should maintain minimal battery usage and comply with Android’s background execution limits (Android 10+). Key Requirements: Strong experience with Android Services (Foreground Service, WorkManager, BroadcastReceiver, etc.) Java-based Android app expertise (Kotlin is a plus) Familiarity with AI or voice-based command integration (bonus) Must ensure smooth and stable performance without app crashes or battery drain Task Scope: Implement the background functionality for continuous command execution. Ensure compatibility with recent Android versions (Android 10–14). Enable app commands via notification panel or system ove...

Need to meet/Linux/Web/cross-platform development, or Java/Kotlin/C #/C++/Python/PHP/JavaScript/Rust/Go or App/Background/Protocol/Driver/Automation/Distributed/

Saya membutuhkan developer berpengalaman untuk merancang dan membangun aplikasi Android yang berfokus pada monetisasi melalui penjualan produk digital maupun fisik. Aplikasinya harus...memaksimalkan konversi dan pendapatan. • Menegakkan standar keamanan transaksi dan perlindungan data pengguna, termasuk enkripsi di sisi server serta autentikasi dua faktor opsional. • Memiliki arsitektur backend yang modular sehingga fitur baru—seperti katalog produk, kupon, atau pelacakan inventori—dapat ditambahkan tanpa refactor besar. Saya terbuka menerima rekomendasi teknologi (mis. Kotlin, Flutter, atau React Native) asalkan performa dan keamanan terjamin di Android. Sertakan contoh aplikasi serupa yang pernah Anda bangun, perkiraan timeline, serta metodologi penguj...

...penggunaan agar saya dapat mengoperasikan aplikasi tanpa bantuan teknis lanjutan. Saya belum menentukan apakah produk yang dijual nantinya berupa barang fisik, digital, atau jasa—silakan siapkan struktur data yang fleksibel. Antarmuka harus intuitif, ringan, dan tidak memerlukan perangkat server yang rumit. Berikan estimasi waktu pengerjaan, teknologi yang akan dipakai (mis. Flutter, React Native, Kotlin, atau lainnya), dan contoh proyek serupa bila ada. Saya siap berdiskusi lebih lanjut untuk memastikan aplikasi ini benar-benar bisa membantu saya mendapatkan penghasilan....

...email/password flow. If you prefer Firebase Authentication, Facebook/Google SDKs, or another reliable SSO option, that works as long as setup is straightforward for end users and easy for me to manage. Because I will eventually submit the app to Google Play, the final build has to meet the latest Play Store guidelines and target the current API level. A lightweight, maintainable codebase—whether Kotlin or Java—is fine so long as it’s well-documented and structured for future feature drops. Deliverables • Complete Android Studio project with source code • APK/AAB ready for Play Store submission • Integrated payment gateway running in sandbox and production mode • Social login fully tested (at minimum Google & Facebook) • Bas...

...replacing paper-based processes. The app is written in Kotlin and designed specifically for Android tablets. There are no plans for iOS. – The role – The MVP is complete and going live this month with 4 paying early access customers. You will take a structured handover from the existing Android developers and steward the app through the transition from development into production. The initial focus is stability, reliability, and maintainability. In the second half of the year, there may be opportunities for further feature development or greenfield work, depending on customer feedback and market response. This role suits a senior, low-maintenance engineer. – Responsibilities – – Maintain and improve the existing Android codebase in Kot...

Saya ingin membangun sebuah aplikasi bisnis Android yang membantu tim kami bekerja lebih giat dan terorganisir. Fokusnya adalah: • Fitur utama — pencatatan tugas, pengingat berkala, dan dasbor ringkas untuk memantau kinerja harian. • Platform — khusus Android, dikembangkan dengan Kotlin atau Java menggunakan arsitektur modern (mis. MVVM, Room, Retrofit). • Backend — solusi ringan cukup memakai Firebase / REST API; saya terbuka pada saran Anda asalkan data tersinkron secara real-time. • Antarmuka — bersih, intuitif, dan siap dipakai oleh pengguna non-teknis. Hasil akhir yang saya butuhkan: 1. APK siap uji di perangkat Android 10+. 2. Kode sumber lengkap beserta instruksi build. 3. Dokumentasi singkat alur fitur utama dan str...

...map, request a trip, and pay securely with a credit or debit card. • Drivers toggle their availability, receive requests, navigate via in-app GPS, then review completed trips and earnings. • The backend matches riders to drivers instantly, calculates distance-based fares, and settles transactions to the appropriate accounts. Key components to build • Two mobile apps (Swift/SwiftUI for iOS, Kotlin/Jetpack for Android) compiled and ready for App Store / Google Play submission • REST or GraphQL API, WebSocket channel for live location updates, and scalable database architecture • Secure payment module limited to credit/debit cards, including tokenisation and PCI-compliant processing • Driver dashboard screens: Earnings overview, Ride histor...

I’m ready to bring my online store to Android and need a talented developer who can translate a straightforward e-commerce concept into a smooth, modern mobile experience. Because I’m starting with Android only, the build should be fully native (Java / Kotlin) or cross-platform so long as the Android release is polished and Play-Store-ready. Scope • End-to-end development of the Android app—from clean architecture and intuitive UI right through to final deployment. • Core e-commerce flow: product browsing, cart, checkout, and secure payment processing. (If you have proven plug-ins or gateway SDKs you prefer, let me know; I’m flexible as long as PCI-compliant options are in place.) • Admin-friendly integration so I can add or update inven...

...clean, modern look matters to me, so please wire in theme customization (at minimum light and dark, with room for future accents). I’m not asking for streaming, gesture navigation, or custom button layouts right now—those can stay on the wish-list until the core experience is rock-solid. I’m fine with ExoPlayer, Media3, or a comparable native library as long as you keep the codebase modular (Kotlin preferred, Java acceptable) and target the latest stable SDK. Smooth seeking, orientation changes that don’t restart playback, and hardware acceleration should work out of the box. Deliverables: • Full Android Studio project with clear, commented source code • Release-ready APK for quick testing on real devices (API 24+) • Short README...

My web application is already live, backed by Supabase and managed through a GitHub repository. The next milestone is a fully native mobile experience—Swift for iOS and Kotlin (or Java) for Android—mirroring the core web-app workflow without compromising performance or security.

...to launch a simple yet solid music-streaming application that runs natively on both Android and iOS. The core focus is a clean audio player that fetches and streams tracks from my back-end, with social-media login (Google, Facebook, or Apple) as the only authentication option—no email/password flow needed. I’m flexible on the tech stack: if you favour Flutter, React Native, Kotlin Multiplatform, or native Swift + Kotlin, that’s fine as long as the end result feels fast, modern, and stable on each platform. UI/UX assets, API endpoints, and sample tracks will be provided. Deliverables • Fully functioning Android and iOS apps compiled from a single codebase or two native projects • Social-media sign-in wired up and returning a valid user token ...

I want to turn “Wirna Mendrofa” into a polished mobile application and need a developer who can handle the full software-development cycle—from architecture and UI all the way to store submission. The finished product should run smoothly on both iOS and Android; how you reach that goal (native Swift / Kotlin, React Native, Flutter, or another framework) is up to you, so long as performance and maintainability stay top-tier. To be considered, send me a detailed project proposal. Walk me through your suggested tech stack, development milestones, testing process, and maintenance plan, and include links to any similar apps you’ve built so I can see your past work in action. Clear, well-commented code in Git, regular testable builds, and comprehensive deployment...

...can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: • A brief outline of how you prefer to structure an Android project • Any simil...

Preciso de um desenvolvedor capaz de criar um launcher SA-MP totalmente funcional para a plataforma Android. A ideia é permitir que um jogador...Usuário instala o APK. 2. Ao abrir, o launcher verifica se os assets de SA-MP já estão presentes; caso contrário, baixa e instala automaticamente. 3. Ajusta as configurações padrão que eu definir. 4. Exibe um botão “Jogar” que inicia SA-MP já conectado ao IP fixo. Entrego o IP do servidor, logo e cores principais; você devolve: • APK final para testes. • Código-fonte comentado (Java ou Kotlin, Android Studio). • Pequeno manual explicando como trocar o IP ou atualizar assets no futuro. Se você já trabalhou co...

...Berjalan mulus di Android dan iOS. • Menghadirkan fitur sosial inti—pengguna dapat membuat profil, mem-posting konten, serta berinteraksi lewat like dan komentar. • Menyertakan Keranjang belanja agar pengguna bisa menambah produk pilihan mereka. • Memiliki Pencarian produk cepat dengan filter sederhana sehingga item mudah ditemukan. Saya terbuka pada stack apa pun—React Native, Flutter, Kotlin/Swift, atau lainnya—selama performa stabil dan UI responsif. Berikan: 1. Rancangan arsitektur aplikasi beserta flow fitur utama. 2. Prototype UI/UX (figma/sketch) untuk layar utama, detail produk, dan halaman checkout sederhana. 3. Kode sumber terstruktur, siap dibangun di Xcode dan Android Studio. 4. Panduan build & deploy singkat agar tim...

...clips remain in the local Room/SQLite store indefinitely, while every unpinned clip should be purged exactly one hour after its creation time. I’m fine with the standard Android UI conventions—think long-press selection, a pin icon in the contextual action bar, and a small pinned indicator inside each row. No custom assets are required beyond the built-in Material icons. The current codebase is Kotlin, minSdk 24, using ViewModel + LiveData. Please stay within that stack. If you see a cleaner Jetpack-recommended way to schedule the one-hour expiry (WorkManager or AlarmManager), let me know and implement it. Deliverables • Updated source code with the pinning logic and expiry scheduler • Any new database entities or migrations applied • Brief mar...

...in-app behaviour. I’m open to the exact technique you use (TensorFlow Lite, ML Kit, embedded models, or a lightweight cloud call), so long as it stays responsive on typical mid-range Android devices. No third-party property-management or CRM integrations are required; the app should run as a self-contained product with its own lightweight backend or local data layer. A clean Material-style UI, Kotlin codebase, and modern Android architecture (Jetpack components, MVVM or similar) will make maintenance easier down the road. Deliverables • Full Android source code and build instructions • Compiled, installable APK targeting Android 11+ • README that documents model choice, training data source (if custom), and how to retrain/replace it • Short vid...

...can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: • A brief outline of how you prefer to structure an Android project • Any simil...

...can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: • A brief outline of how you prefer to structure an Android project • Any simil...

...produk dengan pencarian dan kategori • Keranjang belanja, kupon, dan perhitungan ongkir • Checkout ter­integrasi payment gateway lokal (midtrans / xendit atau setara) • Riwayat pesanan serta notifikasi status via push Desain UI inti sudah ada sebagai wireframe sederhana; Anda tinggal memolesnya menjadi tata letak Material Design yang responsif di berbagai ukuran layar. Kode harus ditulis Kotlin dengan arsitektur MVVM, memanfaatkan Jetpack (Navigation, ViewModel, LiveData) agar mudah saya pelihara. Saya tidak memerlukan fitur iOS ataupun web untuk tahap awal—cukup Android. Berikan: 1. APK demo dan kode sumber lengkap (Git). 2. Panduan build + setup payment sandbox. 3. Satu kali revisi pasca-uji coba internal. Jika Anda pernah mengerjakan ...

...production build of my app is intermittently crashing, and I need a clean, targeted code update to eliminate these functionality-related bugs without introducing new issues. The crashes appear after recent OS updates and seem tied to memory handling inside two core screens; logs point to null pointer exceptions in the data-binding layer. You’ll receive: • Full Git repository access (Android, Kotlin + a small legacy Java module) • Current crash logs from Firebase Crashlytics and Logcat • A short video that reproduces the issue on two devices What I need from you: 1. Diagnose the root cause of the crashes. 2. Refactor or patch the affected classes so the app runs reliably across Android 8-14. 3. Commit code in a separate branch with clear comm...

I need a straightforward yet polished online-shopping app for my supermarket, available on both iOS and Android. The primary goal is letting customers browse products and place orders from their phones; everything else is secondary to a smooth buying experience. Because I’m not on a tight deadline, you’ll have the freedom to choose the tech stack—native Swift/Kotlin or a cross-platform approach such as Flutter or React Native—so long as the final result feels fast and intuitive. Key deliverables I’d like handed over: • Shopper-facing app for iOS and Android, ready for App Store and Google Play submission • Clean, well-documented source code • Simple admin or API hook that lets me update products, prices, and stock in real time &...

...episodes and tracks balance in real-time. • Smooth audio streaming with background play; buffering and bitrate handling should feel invisible to the listener. (Offline downloads are optional for a later sprint, so build with that future toggle in mind.) Design & tech notes The UX should echo popular audio apps—clean mini-player, intuitive queue, dark/light mode if practical. I am comfortable with Kotlin or modern Java and would like well-structured, maintainable code. If you rely on a backend (Firebase, custom REST, etc.) outline the stack and provide clear API documentation so future content ingestion is straightforward. Deliverables 1. Source code and compiled APK ready for Play Store submission. 2. Admin-side setup instructions for managing stories, pricing ti...

...feature is rock-solid time tracking: staff must be able to clock-in, clock-out, record breaks, and review their own daily totals from any modern iOS or Android device. Shift planning and push notifications are not required in this phase, but the architecture should leave room for those additions later. For this initial release, please deliver: • A clean, intuitive mobile interface (native Swift/Kotlin or a cross-platform stack such as Flutter or React Native is fine) • Secure user authentication tied to our existing employee IDs • Real-time clock-in/out with local offline support and automatic sync once connectivity returns • A lightweight back-end (Firebase, Supabase, or a simple REST API with PostgreSQL) storing punch data and producing daily time s...

I need a skilled Flutter developer to plug a very specific feature set into my...recording when my code tells you to, and send the resulting MP4 to the backend with the required headers and auth token. No UI beyond a minimal overlay is expected, so you can concentrate on the functionality itself. Deliverables • Flutter module(s) that expose AR filters, advanced eye tracking, video capture, and an async upload call • Clean, well-commented Dart code plus any native Swift/Kotlin snippets wrapped with platform channels if needed • Quick README explaining integration points and outlines for build settings on both platforms I already handle all server-side processing; I just need this mobile piece integrated and tested on one recent ARCore phone and one ARKit devi...

...Users must be able to discover new people, send and accept requests, organise their contacts, and browse basic profiles in a fluid, Material-design interface. Messaging and photo sharing are out of scope for now; the architecture, however, should keep future modules in mind. You’ll receive my wireframes and brand assets on day one. From there I need a clean Android Studio project, preferably in Kotlin, targeting API 26+. Please follow standard MVVM patterns, use Jetpack components where they add value, and keep third-party libraries lightweight and well-documented. Deliverables • Complete, well-commented source code and project files • Signed release-ready APK/AAB plus debug build • One-page setup & deployment guide Acceptance criteria The ap...

...qualifying transaction, allocates the agreed-upon percentage and makes the balance visible to the referrer inside the app. • Payout trigger via Stripe once a configurable threshold is reached, including email or in-app confirmation. • Admin-side reporting to search users, see conversions and manually adjust commissions if ever required. • Lightweight mobile UI updates (React Native / Swift & Kotlin OK) for the “Invite & Earn” screen and an “Earnings” dashboard. Acceptance criteria – Referral is credited only when the invitee takes out a paid subscription and Stripe confirms the payment via webhook. – Commission percentage and payout threshold can be edited in one backend location and apply immediately. &ndash...

I’m looking for a fully-functional white-label mobile application—similar in flow and features to Gromo or BankSathi—that lets users discover, compare and sign up for retail financial products. I want to launch on both iOS and Android at the same time, so a single code-base approach (Flutter, React Native, Kotlin Multiplatform, etc.) is welcome as long as performance is solid. Core scope • A polished customer-facing app where products such as credit cards, personal loans, insurance, and savings plans are displayed with rich detail, filters, and instant lead capture forms. • A secure onboarding funnel with KYC and basic document upload. • Real-time tracking of applications, commissions, and payout status for users who refer friends. • Push notif...

I’m looking for a fully-functional white-label mobile application—similar in flow and features to Gromo or BankSathi—that lets users discover, compare and sign up for retail financial products. I want to launch on both iOS and Android at the same time, so a single code-base approach (Flutter, React Native, Kotlin Multiplatform, etc.) is welcome as long as performance is solid. Core scope • A polished customer-facing app where products such as credit cards, personal loans, insurance, and savings plans are displayed with rich detail, filters, and instant lead capture forms. • A secure onboarding funnel with KYC and basic document upload. • Real-time tracking of applications, commissions, and payout status for users who refer friends. • Pu...

...support, order summary and UPI/Bhim checkout • Live order tracking with push notifications • Vendor dashboard inside the same codebase or a light web panel for stock and order management • Simple admin panel so I can approve vendors, manage categories, view sales analytics and send alerts Tech stack is up to you as long as it results in smooth Android and iOS builds—Flutter, React Native, Kotlin + Swift or any modern framework you’re comfortable maintaining. Clean, well-commented source code and a quick hand-off guide are must-haves because I’ll be plugging in loyalty features and possibly more payment methods later. Acceptance criteria 1. Two fully functional builds (Android APK / iOS TestFlight) ready for store submission 2. Work...

A) Android TV App (Client) This is your player application: M3U Xtream Codes API Portal MAC EPG VOD / Series Themes PIN Favorites VLC integration Technical stack: Kotlin + Android TV (Leanback / Compose for TV) ExoPlayer + VLC (external or integrated) Room DB for favorites / watch history WorkManager for automatic updates Glide/Coil for posters TV-optimized navigation (D-Pad focus handling) B) Backend / Admin Panel Your control center: Device management Manage MAC IDs Upload background images Push messages to devices Filter categories (languages) Control player settings Technical stack: Backend API (e.g.) Node.js + NestJS or Laravel or Django Database PostgreSQL or MySQL Web Admin Panel React / Vue or Laravel Blade Push system Firebase Cloud Me...

...validation, scoring, win/loss logic, and an intuitive hint/undo system. • Design a clean, touch-friendly UI that scales from phone to tablet, with simple animations for card movement. • Implement local data persistence so players can resume unfinished games and view basic stats (wins, streaks, best times). • Deliver well-commented, modular source code—Unity C#, Flutter/Dart, or native Swift/Kotlin are all acceptable, as long as setup instructions are included. • Package a test build (APK and/or TestFlight) plus a short README covering build steps, asset folders, and any third-party libraries. Nice-to-haves If time allows, optional hooks for future multiplayer or web deployment are welcome; just keep them neatly separated so the single-player rel...

...Android versions and models. If root, Magisk modules, Xposed, or similar low-level methods are required, build those steps into the solution and document them clearly. A simple UI where I can enter custom values, generate random ones on demand, and restore factory values in one tap will be ideal. Deliverables • Signed APK (or Magisk/Xposed module, if applicable) with source code (Android Studio / Kotlin or Java) • Setup guide covering permissions, rooting or flashing steps, and rollback procedure • A brief test report that proves each identifier is successfully spoofed on at least two different Android versions The project is strictly for legitimate privacy research, so clean, well-commented code and a repeatable installation process are essential. Let me k...

My Tamil-language FM radio app is written in Java and built in Android Studio. A recent refacto...fragment lifecycle calls. The issues are isolated to the UI layer: the now-playing fragment, its data-loading helper, and the activity that hosts them. I can point you straight to the offending methods, but I need a clean, compile-ready project and a brief note on what you changed so I can learn from the fix. You’ll be working with: • Android Studio (latest stable) • Java source only – no Kotlin in this module Acceptance: the project builds without warnings, launches, and the UI loads station data and switches fragments without throwing exceptions on at least API 23+. If you’re comfortable speaking Tamil so we can walk hrough any remaining doubts o...

I need a reliable Android developer to jump into my existing project and resolve a few lingering bugs. The code-base is stable overall, but a handful of issues are affecting the user experience and I’d like them cleaned up quickly so I can push the next release to Google Play. You will receive: • The current Android Studio project (Kotlin) • A concise list of the reproducible bugs with steps, expected vs. actual behaviour, and device logs where available I expect: • Clean, well-commented fixes that slot neatly into the existing architecture • No regressions elsewhere in the app—please test on at least two API levels • A pull request or zipped project, plus a signed APK so I can verify on real devices If this sounds straightforw...

...overall matrix. • Local profile so a user can save their own matrix for quick access; additional dates can be stored as “friends.” • Easy sharing: native iOS/Android share sheet so results can be sent to social apps or copied as a link/image. • A short, friendly insight section that shows dynamic tips based on the matrix numbers (logic and text supplied). Technical notes • Android-native (Kotlin preferred, Java acceptable) in Android Studio. • Clean MVVM architecture, material-3 UI, dark/light modes. • Room or lightweight Firebase for local persistence; open to your suggestion. • Code must be well commented—the matrix calculation is unique, so clarity is critical. Deliverables 1. Source code in a private G...

I am ready to turn a concept into a fully-functional Android application and need a developer who can guide the project from initial design through Play-Store-ready build. The scope is limited to Android only—no iOS version is planned—so I want the solution to take full advantage of the Android ecosystem and its latest SDKs. Key things I will look for are clean, maintainable Kotlin or Java code, a modern UI that follows Material guidelines, and a robust architecture that scales if we later add new modules. I will share wireframes and a concise feature list as soon as we agree on the collaboration, but you can expect standard app elements such as user onboarding, data storage (local or cloud, depending on your recommendation), and basic analytics. Deliverables I expect:...

...Android 10 upward. 3. A short change log describing every file or library touched, plus build instructions I can reproduce. Acceptance The build installs through the Play Console’s pre-launch report with zero critical issues, opens charts, registers data, and syncs exactly as the current version does on legacy phones. The code is predominantly Java with a touch of XML; feel free to introduce Kotlin only where it replaces deprecated calls cleanly....

Saya ingin sebuah aplikasi Android yang secara konsisten menghasilkan pendapatan dari iklan. Fokus utamanya adalah: • Pengembangan aplikasi – mulai dari konsep hingga rilis di Google Play. • Platform tunggal Android, dibangun native (Kotlin/Java) atau dengan framework yang tetap ringan dan cepat. • Monetisasi iklan sebagai sumber utama—integrasi Google AdMob (banner, interstitial, dan rewarded video) beserta uji coba penempatan dan frekuensi agar CPM optimal. Gambaran fitur minimal: 1. Antarmuka sederhana namun menarik agar retention tinggi. 2. Konten dinamis (mis. artikel pendek, kuis ringan, atau game kasual) sehingga pengguna punya alasan untuk kembali. Silakan ajukan ide konten terbaik Anda. 3. Dashboard admin dasar untuk memperbarui kont...

... and India are highly preferred. Project Overview The app is related to health & fitness tracking. Main features include: BMI Calculator Daily Weight Tracking Workout Time Tracking Diet Status Tracking Progress / Improvement Reports User authentication Data storage on server / cloud Basic Admin Panel Future feature expansion planned Required Skills Android App Development (Java or Kotlin or Flutter – Android only) REST API integration Backend communication (Firebase / PHP / Node.js – any) Database handling (Firebase / MySQL / SQLite) Bug fixing & performance optimization Basic UI/UX understanding Git / version control (preferred) Job Type Hourly Contract 20–30 hours per week (flexible) Long-term opportunity for the right developer ...

...should mirror the reliability users expect from top ride-hailing brands: quick account creation, precise location selection, in-app status updates, push notifications, secure payments, and a lightweight admin console for vendor onboarding and order oversight. Code quality and scalability matter more to me than the framework you pick, so feel free to propose React Native, Flutter, native Swift + Kotlin, or any stack you’re confident will get through App Store and Google Play review without drama. Just keep the UI consistent with the “minimalist and clean” direction. Please include links to two or three live apps you’ve shipped that prove you can deliver something of similar scope. If we agree on milestones, I’ll provide detailed wireframes, brand as...

...Android 10 upward. 3. A short change log describing every file or library touched, plus build instructions I can reproduce. Acceptance The build installs through the Play Console’s pre-launch report with zero critical issues, opens charts, registers data, and syncs exactly as the current version does on legacy phones. The code is predominantly Java with a touch of XML; feel free to introduce Kotlin only where it replaces deprecated calls cleanly....

... • añadir / quitar números de la lista • indicar el número de desvío o activar el envío a buzón Lo prioritario es la lógica de desvío (opción “Ambas funcionalidades”). La app debe ejecutarse en segundo plano, solicitar los permisos de gestión de llamadas y funcionar, al menos, desde Android 8.0 en adelante. Entregables solicitados: • APK firmado para pruebas • código fuente (Java o Kotlin) • breve guía para compilar, instalar y conceder permisos Daré el proyecto por cerrado cuando verifique que: 1. la llamada de un número incluido se redirige correctamente en menos de dos segundos; 2. las llamadas no incluidas suenan con norma...

I need a clean, lightweight utility application that runs natively on both iOS and Android. The entire focus is on smart task management—no alarms, no file organisers, just an intuitive way to create, edit, prioritise and mark off tasks on the go. Core requirements • Native-feeling experience on each platform, whether you work in Swift/Kotlin or a solid cross-platform stack such as Flutter or React Native. • Fast, searchable task lists with categories, deadlines and basic push notifications. • Local persistence with optional cloud sync so a user can pick up exactly where they left off on another device. • Modern, accessible UI that meets Apple App Store and Google Play guidelines. Deliverables - Clickable high-fidelity mock-ups approved before c...

...functionality • A user can create a task, add a short description, and assign it to themselves or another user/contact. • Tasks should save locally and sync to the cloud when a connection is available (Firebase or your recommended alternative). • A clean Material Design interface with intuitive add/edit screens and a simple list view of all tasks. Deliverables 1. Complete Android Studio project (Kotlin or Java) with clear, well-commented code. 2. Release-ready APK and signed app bundle. 3. One-page setup guide covering build, run, and how to change Firebase keys (or chosen backend). Acceptance criteria • Creating and assigning a task works on Android 11–14 without crashes. • All data persists after app restart and re-syncs correc...

...synchronisation. The SDK file is ready for you to inspect; what I need is clean, production-ready code that lets users sync Step count, Heart rate and Calorie burn seamlessly across both iOS and Android builds. Here’s how I see the flow: you review the SDK documentation, plan the best way to surface the sync endpoints in our existing architecture, build the bridge layer for iOS (Swift) and Android (Kotlin/Java), then hand back a tested, merge-ready pull request along with brief implementation notes. I’ll provide the repo, the current data models and access to our staging API as soon as we start. Please have proven experience integrating third-party SDKs into live apps; this is critical because I don’t have bandwidth for a learning curve on this part of the pro...

...can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: • A brief outline of how you prefer to structure an Android project • Any simil...

...interface is essential: users should be able to drill into detailed comparisons, simulate different scenarios, and see real-time point valuations without feeling overwhelmed. Biometric authentication (Touch ID, Face ID, compatible Android sensors) is the default sign-in method we want, so please factor in any SDK or OS-level requirements for that. I am flexible on the tech stack—native Swift + Kotlin, Flutter, or React Native are all options—as long as the final build is fast, secure, and passes App Store and Play Store review. You will also help set up a straightforward admin panel or config file so I can adjust reward rules without redeploying the entire app. Deliverables: • Cross-platform mobile app with biometric login and a responsive, detail-oriented UI ...