Kotlin Jobs

I’m looking for someone who enjoys building quick, lightweight Android utilities and can handle the entire cycle from coding to publishing on my Google Play Console. For the very first assignment I’d like “another small utility app” beyond the usual calculator or wallpaper examples—something simple yet useful that can be shipped fast and then refined as we collect user feedback. Here’s what I need each time we work together: • Clean, well-commented code in Java or Kotlin, built in Android Studio • AAB/APK ready for release plus the signed keystore or key management steps handled • Play Console assets prepared (screenshots, feature graphic, short description) and the app successfully published under my account • Basic after-lau...

I want a lightweight Android app that can read the live feed of 1xBet’s Crash game and forecast the crash point a few seconds before each round stops. Mobile is the only environment I need covered, so everything you build should install cleanly on recent Android versions without side-loading gymnastics. The core of the project is the prediction engine. Whether you choose pure probability modelling, machine-learning, or a hybrid approach, the algorithm must process real-time data from the game screen or API and return a single number—the expected multiplier at which the round will bust. A simple, distraction-free interface that shows the current round, your predicted crash point, a confidence score, and a quick history log is enough for version one; fancy charts can wait. You&...

I want to launch a feature-rich social media application built natively for Android. Because the focus is Android only, the entire UX should follow Google’s latest Material Design guidance and take advantage of Kotlin (or Java if you have a strong case). Core scope • Account creation, secure login and profile editing • Dynamic feed with posts, images, likes and comments in real time • Push notifications for follows, messages and activity • Basic in-app messaging (text and images) • Admin dashboard or simple backend panel for moderating content I’ll provide branding assets and the initial wireframes; you’ll translate them into a polished UI, develop the app, connect it to a scalable backend (Firebase or a RESTful service—happy to ...

I’m putting together an Android Studio app whose only job is to pull product records from a Postgres instance hosted on Google Cloud and show them in a clean, scrollable list. The data connection must run through Google’s Antigravity agent so the app stays lightweight and secure without shipping database credentials inside the APK. Here’s what I need from you: • A minimal yet solid Android Studio project (Kotlin or Java—your choice) that connects to the Postgres database via the Antigravity agent. • An async call that fetches product data—name, price, description, image URL are enough for a working demo—and maps it into a RecyclerView list. • Basic UI: toolbar with app name, RecyclerView list, placeholder images handled gracefully, a...

I’m gearing up to launch a brand-new Android app that lets my hardware-shop customers browse products, add items to a cart, and place orders straight from their phones. The focus is strictly on online sales and ordering—no inventory management module for now—so every screen should guide shoppers smoothly from discovery to secure checkout. Core flow I need: • Product catalogue with categories, search, photos, prices and live stock count pulled from our existing SQL database (REST/JSON endpoint is ready). • Cart, quantity edits and promo-code field. • Checkout supporting cash-on-delivery plus at least one standard payment gateway (Stripe or Razorpay is fine). • Order confirmation, push notification updates and a simple order-history screen. &bul...

I need a complete Android-only mobile app built from the ground up for my project, Jamzith ja. The core idea is defined, yet the feature set still needs to be refined and transformed into an intuitive, production-ready experience. I’m looking for a developer who can guide the process end-to-end—brainstorming UX, translating it into clean Kotlin or Java code, and delivering a signed release build on Google Play. Key deliverables • Interactive wireframes and UI designs approved before coding begins • Native Android app coded with modern SDK practices and a modular architecture • Integrated analytics and crash reporting, plus responsive layouts for phones and tablets • Ongoing commits to a private Git repo and clear documentation for future maintenan...

I need help wiring up a small but very specific feature in my Android app: when a user touches and holds any saved text clip, it should toggle a “pinned” state; pinned clips stay forever, while anything left un-pinned is automatically purged 60 minutes after creation. The core UI is already in place; what’s missing is the persistence logic and the timer-based cleanup. I’m working in Kotlin with the current stable Android SDK and Jetpack libraries, so I’d like the solution to slot neatly into that stack—Room (or another lightweight local store) for persistence, a WorkManager or Coroutine-based job for the hourly sweep, and straightforward state handling so the pin icon reflects changes instantly. Acceptance criteria • Long-press marks or unma...

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I need a native-Android application that reproduces the workflow now handled in my Excel sheet. The sheet records every job, lets the person doing the work enter his direct costs, and then helps me track what has already been paid and what is still outstanding. I want the same data-entry fields and the same automatic calculations migrated into an intuitive mobile interface so nobody has to touch the spreadsheet again. Two distinct roles are required. • Job performer: opens the app, chooses or creates a job, keys in labour, material or travel costs and immediately sees the calculated total for that job. • Manager/Administrator: sees every submitted job, the running balance of payments, marks items as paid, and can export a simple summary report for accounting. Core features ...

I want to release a clean, lightweight GPS running tracker built exclusively for Android. The app’s single non-negotiable is rock-solid, real-time location tracking that draws the runner’s path on a map and keeps accurate distance and pace figures throughout the session. I’m aiming for something dependable enough for everyday use, yet simple enough to feel snappy on mid-range phones. Here’s how I picture the flow: • User taps “Start” and the route begins drawing instantly on a Google Map. • Live stats (time, distance, current pace) update each second. • Hitting “Stop” saves the run to a local store; I’m open to your recommendation on whether to sync it later to Firebase, Room, or another lightweight option. Core expecta...

I want to launch an Android and iOS application that mirrors the core experience of Bubbly Live—real-time streaming, one-to-one video calls, and virtual gifting—while still carrying my own branding touches. The interface should feel instantly familiar to regular Bubbly users, yet stand apart through subtle design tweaks that we will define together (think updated colours, iconography, and motion cues rather than a full layout overhaul). Core scope • Low-latency live streaming rooms that support thousands of concurrent viewers. • One-to-one video calling initiated either from a stream or directly from a user profile. • Gift-sending system with animated effects and a creator revenue share logic. • In-app wallet and consumable coin balance, including p...

I’m building a dedicated grocery-only delivery service and need a native Android application created from the ground up. The core experience I’m after is smooth product discovery, an intuitive cart, secure checkout, and real-time order updates—all wrapped in clean Material Design that feels at home on modern Android devices. Core flow • Users sign up or log in, browse or search the grocery catalogue, add items to their basket, pick a delivery slot, and pay in-app. • As soon as an order is placed, the customer sees live status updates and can follow the driver’s route on Google Maps until the groceries arrive. Management tools A lightweight web-based admin (or Firebase console extensions) should let me update inventory, set pricing & promos, assign ...

I’m looking for an experienced Android developer to build a grocery delivery application from the ground up. The app should run smoothly on Android phones and tablets, guiding a customer from product browsing all the way to order confirmation and delivery. At minimum, the flow needs to cover browsing a live catalogue, adding items to a cart, scheduling or requesting immediate delivery, and checking out securely. I’m open to your recommendations on tech stack—whether that’s native Kotlin, Java, or a cross-platform framework that still produces a polished Android build. Clean architecture, modular code, and thorough inline documentation are very important because my in-house team will take over maintenance once the project is live. Please include examples of previou...

I’m adding a small yet important interaction to my Android app: when a user performs a long-press on any video clip, that clip should become “pinned.” A pinned clip must stay on the device indefinitely, while every unpinned clip should be automatically removed exactly one hour after it was created or downloaded. What I already have • The app already plays and lists video clips; you’ll be working inside an existing Android project. • Current codebase is in Kotlin, but clean Java is acceptable if you keep the modules consistent. What I need from you • Detect a long-press gesture on each clip thumbnail or list item and toggle its pinned state visually (e.g., overlay icon or colour change). • Persist the pinned flag locally so it survives a...

PROJECT: ChaloTrain – End-to-End Android App Completion & Google Play Store Launch Budget: ₹5,000 fixed I already have an existing ChaloTrain Android project ZIP. The project is built with Kotlin + Jetpack Compose and several railway features/APIs are already implemented. I am looking for a freelancer who can take the existing project and complete the remaining work end-to-end up to Google Play Store production publication. SCOPE OF WORK: 1. Take my existing ZIP/project and continue from the current codebase. 2. Audit the existing project and preserve all working features. 3. Complete all remaining railway API integrations using my provided API access. 4. Verify the already integrated APIs and fix any integration issues. 5. Complete Fare Enquiry real API verification. 6. Com...

Hi, I’m Monika and I need a complete Android mobile app built from the ground up. This project is strictly Mobile app development, and the target platform is Android only. The work covers everything from refining the core concept with me, creating a clean Material Design-compliant interface, and coding the full stack in Kotlin or Java, through to final testing on multiple screen sizes and submitting the release build to Google Play. To wrap things up smoothly, I will require: • Production-ready APK plus full, well-commented source code • Brief setup and deployment documentation • Assistance during the Play Store publishing process Experience with Firebase, RESTful APIs, secure user authentication, and Git-based version control will make collaboration eas...

I’m building a quick-commerce solution specifically for Android and need a developer who can move fast without compromising quality. The app must keep to a clean, minimalistic aesthetic while still feeling lively and intuitive for shoppers. Core functionality includes seamless user registration and login, robust product search with smart filters, and a reliable payment gateway that supports the major local wallets and cards. In addition, the order flow has to connect to my existing delivery-partner company through their API so riders receive jobs instantly once payment is confirmed. Deliverables • Fully-functional Android application (latest stable SDK) • Integrated authentication, advanced search/filter, and secure payment modules • End-to-end link with the de...

The goal is to wire every layer of a new pair of smart glasses—from the on-board sensors right through to an Android companion app—so that the device behaves like a polished, consumer-ready product. Hardware & low-level work • Pair, stream and reconnect reliably over Bluetooth Low Energy while also supporting high-bandwidth features across Wi-Fi sockets. • Drive the critical modules selected for this build: the camera, IMU sensors, plus the speakers and microphones. • Optimise power draw, heat and battery life; handle sleep / wake cycles intelligently. Middleware • Integrate the OEM SDK, which exposes Android libraries first, and bridge any native C/C++ portions that sit beneath those Kotlin/Java calls. • Build or adapt media pipelines f...

I need a lightweight Android application that lets our supervisors enter and track employee attendance only—no chat or task boards, just clean data entry around staff presence. Core flow • Open the app, search or scan for an existing employee record. • Mark the employee as present, absent, or late and save the entry on the spot. • View a history screen that can be filtered by date, department, or name. • Export the attendance log to CSV or have it sync automatically to the REST endpoint I will provide. Tech expectations Kotlin in Android Studio, targeting Android 8.0 and above. A local Room/SQLite database should cache records when the device is offline, then push them once a connection returns. Material Design components are preferred so the UI feels ...

I need an Android application that recreates the core Rapido experience for use in just one city, fully branded with my own logo and colours. Users must be able to register or log in, book a ride, pay inside the app, follow their driver’s live GPS location, and review every completed trip in a ride-history screen. Deliverables • Release-ready Android APK and complete, well-documented source code • Secure backend and database powering registration, bookings, payments, GPS updates and ride logs • Basic admin interface (web or in-app) for monitoring rides and managing users • Deployment guide and one post-launch bug-fix cycle Acceptance criteria • A new user can sign up, book, pay and track a ride end-to-end without crashes or hangs • Each tri...

I’m rolling out an internal-only Android application whose single purpose is to make it effortless for every employee to talk to any other employee. Messaging, voice calls, and video conferencing all have to live in one clean interface, running smoothly on current Android versions. Once a user signs in with corporate credentials, all conversations are open—there are no department or role restrictions—so the directory must load the full company roster by default. Realtime text chat should feel as immediate as today’s consumer apps: status presence, push notifications, read receipts, and the ability to share images or small files. For voice and video I’m leaning toward WebRTC, but I’m open to equivalent low-latency libraries that keep call setup snappy ev...

I want a lightweight, ad-free Android application that lets me look up UP Bhulekh land-records from my phone. The scope is deliberately small: the only in-app action is to search records by owner name and show the matching result exactly as it appears on the official site. A minimalist interface—logo, single search field, and a clean results screen—is all I need. You may implement it in Flutter or in native Android (Kotlin/Java). Under the hood you can either wrap the official website in a well-behaved WebView or call the public endpoints directly; whichever route you choose, the experience must stay fast and free of pop-ups or banners. No Play Store deployment is required. Just hand over: • A signed, install-ready APK • The complete, readable source code with basic...

I’m planning a brand-new social media experience built exclusively for Android and need a developer who can carry it from first wireframe all the way to a polished Play Store release. The goal is a familiar yet fresh environment where users create profiles, share photos or short videos, follow one another, chat in real time and receive push notifications. I’d like clean, well-documented Kotlin or Java code, a modern Material-You interface and a lightweight, scalable backend—Firebase or a custom REST API, whichever you can justify best. Core features include secure sign-in (email, phone and Google), content upload with basic moderation tools, and analytics hooks so I can track engagement. Deliverables • Production-ready Android app (.apk and full source) • ...

I’m building a mobile app that lets anyone point a phone camera at a room, capture either a set of photos or a smooth video walkthrough, and immediately see precise length, width, and height readings—plus a clean 2-D floor plan—right on the screen. The app must run natively on both Android and iOS and handle either input mode interchangeably, detecting which media type the user supplies and processing it automatically. Here’s the core workflow I need implemented: 1. Media capture
 • Photo series or continuous video, initiated inside the app with clear guidance overlays. 2. 3-D reconstruction
 • Apply state-of-the-art computer-vision (depth estimation, photogrammetry, or AR—whichever you judge most accurate and efficient on modern device...

I’m looking for experienced mobile talent to turn my fintech concept into a polished application that works seamlessly on both iOS and Android. This project is mobile-first from day one, and every screen, workflow, and API call should feel equally at home on an iPhone or an Android device. The app’s core purpose is fintech, so security, data integrity, and a clean user experience will guide every technical and design decision we make together. I already have a rough feature outline and brand assets; once we start, I’ll share those so we can lock down the final scope. Here’s what I need from you: • A single, maintainable codebase that compiles to native iOS and Android binaries • Help selecting the most appropriate stack (Swift/Kotlin, Flutter, React Na...

I need an experienced programmer to turn my concept into a fully-functional Android application. This is purely a programming and development assignment—no cross-platform work—so your focus will be native Android best practices, clean architecture, and a polished, responsive UI that feels at home on recent Android releases. I will supply wireframes, feature notes, and brand assets; you will handle everything from setting up the project in Android Studio through to a signed APK ready for Play Store submission. Along the way, I expect well-documented Kotlin code, sensible use of Jetpack components, and Git version control so I can follow progress in real time. Key milestones will include: • Interactive prototype that proves core navigation and screens • Fully integr...

Saya ingin membangun sebuah aplikasi Android sederhana yang berfokus pada fungsi login pengguna. Aplikasi ini hanya perlu menampilkan layar pendaftaran, layar masuk, dan satu halaman beranda kosong setelah autentikasi berhasil. Ruang lingkup pekerjaan: • Merancang antarmuka login & registrasi yang bersih dan responsif (XML / Jetpack Compose diperbolehkan). • Mengimplementasikan autentikasi email-password (Firebase Authentication, atau solusi backend ringan lain yang Anda sarankan). • Menyimpan data pengguna dasar (nama, email) di Firebase Realtime DB, Firestore, atau tabel MySQL—silakan pilih pendekatan yang paling efisien. • Menangani validasi input, pesan kesalahan, dan sesi pengguna sehingga pengguna tetap masuk saat aplikasi dibuka kembali. Has...

Saya ingin sebuah aplikasi mobile Android yang memungkinkan orang bertransaksi tanpa harus memiliki kartu kredit atau debit. Intinya, pengguna cukup mendaftar, mengisi saldo melalui metode pilihan—transfer bank, dompet digital, atau cara lain yang umum dipakai—lalu bisa langsung membayar di merchant online maupun offline. Fokus utama: • Menawarkan solusi pembayaran non-kartu yang mudah diakses. • Platform eksklusif Android, dibangun dengan stack yang modern (Kotlin atau Flutter dipersilakan). • Antarmuka sederhana: pendaftaran, top-up saldo, pemindaian/QR untuk bayar, riwayat transaksi. • Sistem back-end ringan untuk otentikasi, penyimpanan saldo, dan notifikasi pembayaran. Saya terbuka pada masukan soal arsitektur, keamanan data, serta integrasi gat...

Saya ingin membangun sebuah aplikasi Android sederhana yang berfokus pada fungsi login pengguna. Aplikasi ini hanya perlu menampilkan layar pendaftaran, layar masuk, dan satu halaman beranda kosong setelah autentikasi berhasil. Ruang lingkup pekerjaan: • Merancang antarmuka login & registrasi yang bersih dan responsif (XML / Jetpack Compose diperbolehkan). • Mengimplementasikan autentikasi email-password (Firebase Authentication, atau solusi backend ringan lain yang Anda sarankan). • Menyimpan data pengguna dasar (nama, email) di Firebase Realtime DB, Firestore, atau tabel MySQL—silakan pilih pendekatan yang paling efisien. • Menangani validasi input, pesan kesalahan, dan sesi pengguna sehingga pengguna tetap masuk saat aplikasi dibuka kembali. Has...

Saya ingin sebuah aplikasi freelancing sederhana khusus Android. Fokus utamanya adalah fitur manajemen pembayaran—pengguna harus bisa menerima, mengirim, dan melihat riwayat transaksi dengan aman langsung di dalam aplikasi. Ruang lingkup: • Rancang alur onboarding talent dan klien yang mudah dipahami. • Implementasikan modul pembayaran terintegrasi (dompet digital atau gateway populer di Indonesia diutamakan). • Sediakan dasbor ringkas yang menampilkan saldo, tarif, dan status transaksi. • Pastikan antarmuka mengikuti pedoman Material Design dan responsif di berbagai ukuran layar. Kriteria penerimaan: • APK siap uji coba di perangkat fisik. • Kode bersih, terdokumentasi, dan dapat saya build ulang di Android Studio. • Proses pembayaran...