Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

De 243,586 opiniones, los clientes califican nuestro Java Developers 4.9 de un total de 5 estrellas.
Contratar a Java Developers

Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

De 243,586 opiniones, los clientes califican nuestro Java Developers 4.9 de un total de 5 estrellas.
Contratar a Java Developers

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    144 trabajos encontrados

    Quiero una aplicación nativa para Android que permita al usuario escribir el título de la pelicula o el fragmento de la misma , para obtener un resumen breve y tambien detallado en texto de lo que el director de la pelicula quiere expresar en la pelicula de lo que se supone que quiere decir con el argumento su significado. Estructura de negocio En Español – Modo gratuito: el usuario podrá ver la letra y un significado muy resumido; la pantalla mostrará anuncios (banner o intersticial, según recomiendes) como única fuente de monetización. – Modo premium: acceso a la explicación completa, sin anuncios. El pago debe gestionarse únicamente a través de Vizun; u la opcion de pago con targeta de debito...

    $254 Average bid
    $254 Oferta promedio
    45 ofertas

    Quiero una aplicación nativa para Android que permita al usuario escribir el título y la pelicula o el fragmento de la misma , obtener la letra completa del estidio de lo que quiere decir el argumento y leer su significado. Estructura de negocio – Modo gratuito: el usuario podrá ver la letra y un significado muy resumido; la pantalla mostrará anuncios (banner o intersticial, según recomiendes) como única fuente de monetización. – Modo premium: acceso a la explicación completa, sin anuncios. El pago debe gestionarse únicamente a través de Vizun; u la opcion de pago con targeta de debito o credito, necesito Stripe. Flujo deseado 1. Pantalla de búsqueda con autocompletado. 2. Resultados con le...

    $184 Average bid
    $184 Oferta promedio
    20 ofertas

    Busco desarrollar el backend de un sistema empresarial centrado en el seguimiento de procesos, específicamente el seguimiento de tareas diarias. Qué necesito: • Arquitectura robusta con API REST bien documentada. • Modelo de datos que permita crear, asignar, actualizar y cerrar tareas; registrar tiempos y responsables; generar estados de avance. • Autenticación y control de roles (admin, supervisor, operario). • Endpoints optimizados para reportes en tiempo real y paneles de KPI. • Entorno listo para escalar (idealmente Node.js + Express o Java Spring; estoy abierto a otros stacks si justificas ventajas). • Pruebas unitarias y de integración básicas, así como guía breve de despliegue en cloud (AWS, A...

    $350 Average bid
    $350 Oferta promedio
    59 ofertas

    I’m looking for an independent developer who can take full ownership of designing and building an AI-driven chatbot from the ground up. At this stage I have a clear business need for an intelligent assistant but I’m open to your recommendations on the exact feature set, tech stack, and deployment channel. Here’s what I’ll rely on you to handle: • Scoping: translate my high-level objectives into a practical bot roadmap and recommend the most suitable NLP or LLM framework (e.g., Python with LangChain, Node.js, Dialogflow, Rasa, or another option you trust). • Architecture & Build: create the conversational flows, implement the model logic, and wire up any required APIs or data sources. • Training & Fine-tuning: curate or generate sample da...

    $14 / hr Average bid
    $14 / hr Oferta promedio
    50 ofertas

    I want to replicate the smooth, quick-credit experience that apps such as KreditBee and Money View deliver, but with my own branding and flow. The build is strictly for Android and must be submitted to – and accepted by – Google Play, so every screen, permission request, and data-handling practice has to comply with the latest Play Store lending and personal-loan policies. Core flow • Registration → basic details • KYC verification – Aadhaar/PAN capture, selfie match, secure API hand-off to a third-party service of your choice • Loan application and approval dashboard • Before loan disbursement, the app must harvest and store the user’s full contact list (names, phone numbers, email where available) after an explicit consent prompt ...

    $993 Average bid
    $993 Oferta promedio
    3 ofertas
    Android Earning App & Admin Panel
    6 días left
    Verificado

    I want to launch a complete Android-based earning platform that feels modern and minimalistic from the first tap. The core of the product is an Android app tightly coupled with a web-based admin panel that lets me control every task and payout in real time. Monetisation & task flow • Before a user can start any task, a rewarded AdMob video must play—no exceptions. • Tasks focus on social engagement: liking, subscribing, following or commenting on YouTube, Facebook and TikTok content. Each completed task credits the user automatically. Payout methods Users must be able to cash out through JazzCash, EasyPaisa or USDT (TRC-20). The admin side should let me approve, hold or reject withdrawals with a single click and view totals per method. Security & anti-cheat...

    $135 Average bid
    $135 Oferta promedio
    20 ofertas

    Project Title: Automated Web Scraper & AI Summarizer for Legal Documents (Italian Administrative Justice Portal) Project Overview: I need an automated workflow to monitor judicial rulings from the Italian Administrative Justice website (). The system should perform weekly searches based on dynamic keywords (e.g., "appalti"). Requirements: Web Scraping: Create a scraper (using Python/Playwright or Browse AI) that can bypass anti-bot protections, input keywords, and extract PDF links and metadata for rulings published in the last 7 days. Cloud Integration: Use (Integromat) to organize the results. For each keyword, create/update a specific Google Drive folder and upload the new PDFs. AI Processing: Integrate Google Gemini API to: Analyze the rulings within each folder. ...

    $194 Average bid
    $194 Oferta promedio
    63 ofertas

    I need a complete astrology application whose core job is to generate accurate birth (natal) charts. A user should be able to enter date, exact time, and place of birth and instantly receive a visual chart with the usual planetary positions, house cusps and aspect table. Platforms The solution must run natively on Windows and through a Web interface; I would also like Mac OS support and, if you can package the same codebase into Android and iOS apps, even better. Please indicate how you plan to achieve this multi-platform reach—whether that is via Electron, Flutter, React/Node, or another framework that compiles to desktop, web, and mobile. Key requirements • High-precision ephemeris calculations so the chart data is reliable • Clean UI that shows the wheel, table...

    $261 Average bid
    $261 Oferta promedio
    15 ofertas

    This homework requires a working Python program that respects every constraint my instructor set. Only the libraries covered in class may be imported—specifically NumPy, Pandas, and Matplotlib. A few lightweight SQL queries are acceptable, but no external packages beyond that list can appear in the final code. The assignment brief and its “AI usage” rules will be shared right after we start; the code must follow them to the letter. I need mid-level, object-oriented design, clear function separation, and comments in English so the grader can follow the logic. Deliverables • A single, well-commented .py file (or notebook, if advised in the brief) using only NumPy, Pandas, Matplotlib, and basic SQL. • A short README explaining how to run the script and where ...

    $20 / hr Average bid
    $20 / hr Oferta promedio
    64 ofertas

    deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • Only people who have previously studied and worked on production-style Signal server architecture and structure should communicate • Those who have not previously studied and worked on production-style Signal server architecture and structure should not submit bid proposals. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administrat...

    $109 Average bid
    $109 Oferta promedio
    74 ofertas

    I need a fully white-label Android remote-support APK that carries my own app name, icon, and color scheme right out of the box. Core functionality must include real-time screen sharing, two-way file transfer, full screen control, and unattended access so I can assist users even when they are not actively in the app. Chat is not required at this stage. Only Android needs to be supported, so feel free to focus on the best-practice libraries and services available for that platform (e.g., Android Accessibility Service, ADB, WebRTC or similar for streaming, secure sockets for file movement). Custom branding is essential: package name, splash screen, logo, and any visible text should be replaceable through a simple configuration or build flag so future rebrands are quick. Deliverables &bu...

    $260 Average bid
    $260 Oferta promedio
    9 ofertas

    The goal is to build a lightweight Android utility focused on task management. Core capability centres on notifications and reminders—covering everyday to-dos as well as specialised payment nudges and simple order-processing follow-ups—delivered reliably on Android 8.0+ devices. Scope of work • Create the full Android application in Kotlin (Java is acceptable if strongly preferred) with Android Studio. • Design clean Material-compliant screens for adding, editing and browsing tasks. • Persist data locally with Room; structure the code so a future cloud sync (e.g. Firebase) can slot in without major refactoring. • Implement a reminder engine that schedules push notifications, survives device reboots and handles recurring events such as monthly paymen...

    $76 Average bid
    $76 Oferta promedio
    16 ofertas

    I need a robust, production-ready AI agent that can take over our entire invoicing workflow—from data capture to sending, tracking, and reconciling payments—while remaining extensible enough to plug into future inventory and customer-service automations. Scope • The agent must ingest order data from our current system (REST/JSON API), generate compliant invoices, dispatch them by email or chat, follow up automatically, and post results back to our accounting platform. • Decision-making should be handled by an LLM-powered controller (GPT-4, Claude, or similar) with deterministic guards for amounts, dates, and tax rules. • I expect tight integration through Python micro-services, webhooks, or RPA tools such as Zapier, Make, or n8n—whatever achieves r...

    $595 Average bid
    $595 Oferta promedio
    32 ofertas

    I’m ready to have a brand-new feature built from scratch for my mobile application, and the entire codebase needs to be written in pure Java. Performance, clean architecture, and clear inline documentation are non-negotiable because this module will slot straight into an existing codebase that already follows solid, maintainable practices. Here’s what I need from you: • A concise outline of your technical approach—how you’ll structure the code, the patterns or libraries you prefer, and the way you’ll keep the footprint lightweight on a mobile device. • A short overview of your relevant Java mobile experience, especially any instances where you created a feature end-to-end rather than extending existing code. • Your best estimate of the cale...

    $98 Average bid
    $98 Oferta promedio
    17 ofertas

    I have an Android application whose code is fully obfuscated and packed—only the encrypted APK is available. As soon as the app starts it shows a user-prompt dialog that I need removed. Everything else in the application must stay exactly as it is; functionality, resources, signatures, and performance cannot be affected. Your job is to: • Decrypt or unpack the existing APK (the only file I can supply). • Locate the routine that raises the launch-time user prompt and strip it out cleanly. • Rebuild, align, and sign the APK so it installs normally and behaves identically to the original—just without that dialog. Feel free to use apktool, JADX, smali/baksmali, Bytecode Viewer, or any toolset you trust, so long as the final binary passes installation and runs ...

    $7 Average bid
    $7 Oferta promedio
    3 ofertas

    I'm seeking an experienced Roblox developer to create an action game with both PvE and PvP elements.

    $155 Average bid
    $155 Oferta promedio
    16 ofertas

    I’m planning to launch a new blockchain-based product and I need an experienced developer who can guide me from concept to main-net deployment. At this stage I’m flexible about the exact stack—Ethereum, Binance Smart Chain, Solana or another network—so I value someone who can weigh the trade-offs and recommend the best fit for scalability, fees, security, and time-to-market. The broad vision includes designing the core smart contracts, creating a native token, integrating a secure wallet flow, and building out any web or mobile front-end required for users to interact with the chain. I also want clear documentation and the test coverage needed for a smooth audit. Deliverables I’d like to see: • Technical roadmap outlining the chosen architecture, toolin...

    $596 Average bid
    $596 Oferta promedio
    98 ofertas

    I’m a Python developer who delivers end-to-end IT and Software Services for small to medium-sized businesses. My core offerings include custom software development, scalable cloud services, GenAI integrations, web applications and bespoke automation tools. I’m looking for a business-development professional who can consistently bring in new clients on a pure commission basis. You already have—or can quickly build—a network of decision-makers in the SMB space and know how to translate their pain points into signed projects. How the partnership will work • You source and qualify prospects that fit our service profile. • I join during technical discussions, craft proposals and deliver the work. • Commission is paid on every closed deal; percent...

    $10 Average bid
    $10 Oferta promedio
    4 ofertas

    A responsive frontend web application built for a photography business to showcase services, portfolios, and client information. The platform focuses on clean UI design, smooth navigation, and optimized performance. It is deployed on cloud infrastructure and structured for scalability and future backend integration. Link:

    $52 Average bid
    $52 Oferta promedio
    10 ofertas

    I need a mobile app that utilizes Excel for basic arithmetic calculations on number inputs. The app should be user-friendly and efficient. Key Requirements: - Perform basic arithmetic operations (add, subtract, multiply, divide) - Input data primarily as numbers - Mobile compatibility is essential Ideal Skills and Experience: - Proficiency in Excel and mobile app development - Experience in creating calculation tools on mobile platforms - Strong UI/UX design skills for mobile applications Looking for a freelancer who can deliver a simple, effective solution within budget.

    $29 Average bid
    $29 Oferta promedio
    17 ofertas

    I need an Android app to control and automate an industrial unit via CAN bus using the CANopen protocol. Key Features: - Real-time monitoring and alerts - Remote control of equipment - Automated scheduling and tasks Ideal Skills and Experience: - Proficiency in Android app development - Experience with CAN bus and CANopen protocol - Strong background in control and automation systems - Ability to implement real-time data processing and alerts Looking for a developer who can deliver a robust, user-friendly app.

    $237 Average bid
    $237 Oferta promedio
    22 ofertas

    I want to bring a dedicated Android e-commerce application from concept to Google Play. The core of the build is straightforward: customers must be able to browse products, add items to a cart, and check out smoothly—but the standout requirement is a robust push-notification system that keeps shoppers updated on promotions, order status, and cart reminders in real time. My priority stack is Kotlin with Android Studio, though I am open to proven cross-compatible libraries where it makes sense. Payment processing, user profiles, and basic analytics are already budgeted for the next phase, so please set up the project architecture with future modules in mind. Deliverables: • Production-ready APK plus signed AAB for store release • Complete, well-commented source code in a ...

    $210 Average bid
    $210 Oferta promedio
    36 ofertas

    A Generative AI Expert designs, develops, and deploys AI systems that can generate content such as text, images, code, audio, and video using advanced models like LLMs (Large Language Models) and diffusion models. They work with technologies such as OpenAI APIs, Google AI, Microsoft Azure AI, and open-source frameworks like Hugging Face. Key Responsibilities Develop AI-powered applications using LLMs (GPT, Claude, Gemini etc.) Fine-tune models using domain-specific data Build prompt engineering strategies Implement RAG (Retrieval-Augmented Generation) Deploy AI models using cloud platforms (AWS, Azure, GCP) Optimize AI performance, latency, and cost Ensure AI ethics, bias mitigation, and data privacy compliance Integrate AI with web/mobile applications via APIs Required Skills Technica...

    $284 Average bid
    $284 Oferta promedio
    29 ofertas

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

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

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

    $34 / hr Average bid
    $34 / hr Oferta promedio
    55 ofertas

    I’m ready to launch an e-commerce experience on Android and need a complete application built from the ground up. The core idea is simple: shoppers must be able to browse a catalog, add items to a cart, pay securely, and track their orders—all within a clean, responsive interface that feels fully native to Android. You’ll focus on coding and UX while I supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SD...

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

    About the Project (Only Mumbai-based Freelancer, no Agency ) We are building an end-to-end Purchase Order (PO) to Invoice Automation System. Customer POs are received via email in PDF format and currently processed manually into Excel and ERP. We are implementing two synchronized Robotic Process Automation (RPA) bots to: Extract data from POs Validate and structure data Enter data into ERP Generate invoices Email invoices to customers Maintain audit logs The system must operate 24/7 with minimal human intervention. Role Overview We are seeking an experienced RPA Developer to design, develop, test, and deploy automation bots that streamline the order processing lifecycle. The ideal candidate has hands-on experience in PDF data extraction, ERP automation, exception handling, and produ...

    $87 Average bid
    $87 Oferta promedio
    13 ofertas

    Saya ingin membangun sebuah aplikasi produktivitas khusus untuk perangkat Android. Fokus utama proyek ini adalah pengembangan aplikasi end-to-end, mulai dari rancangan antarmuka hingga fungsi inti yang membantu pengguna bekerja lebih efisien. Ruang lingkup pekerjaan: • Membuat wireframe sederhana berdasarkan kebutuhan dasar yang akan saya bagikan. • Mengembangkan aplikasi Android native (Java atau Kotlin) dengan struktur kode yang rapi dan mudah dipelihara. • Mengintegrasikan fitur produktivitas utama—misalnya pencatat tugas, pengingat, atau pelacak waktu—(saya terbuka pada masukan Anda untuk menentukan fitur mana yang paling relevan). • Menyediakan dokumentasi singkat tentang cara mengonfigurasi, membangun, dan menjalankan proyek. • Menyerah...

    $2 / hr Average bid
    $2 / hr Oferta promedio
    3 ofertas

    Saya ingin membangun sebuah aplikasi produktivitas khusus untuk perangkat Android. Fokus utama proyek ini adalah pengembangan aplikasi end-to-end, mulai dari rancangan antarmuka hingga fungsi inti yang membantu pengguna bekerja lebih efisien. Ruang lingkup pekerjaan: • Membuat wireframe sederhana berdasarkan kebutuhan dasar yang akan saya bagikan. • Mengembangkan aplikasi Android native (Java atau Kotlin) dengan struktur kode yang rapi dan mudah dipelihara. • Mengintegrasikan fitur produktivitas utama—misalnya pencatat tugas, pengingat, atau pelacak waktu—(saya terbuka pada masukan Anda untuk menentukan fitur mana yang paling relevan). • Menyediakan dokumentasi singkat tentang cara mengonfigurasi, membangun, dan menjalankan proyek. • Menyerah...

    $3 / hr Average bid
    $3 / hr Oferta promedio
    4 ofertas
    Oracle AI Agent Studio
    5 días left
    Verificado

    If you are expert in building Oracle AI agents and if you have the fusion experience then only bid this project. payment will be released only if the project satisfied or else no payment. it needs to be remote work you just need to guide me i will do in my system. I have a Fusion Application instance and want to layer Oracle AI Agent Studio on top of it so that key customer-facing actions happen automatically. The flow is straightforward: • The agent picks up promise dates and status changes from Fusion. • It updates the relevant “Notes” field in real time. • If a promise is missed, the agent triggers an email to the customer (and a copy to our team). Few of theAPI keys are already available; I simply need you to wire them into Oracle AI Agent Studio, c...

    $78 Average bid
    $78 Oferta promedio
    9 ofertas

    So, here is my project details again described here, study and give me better code please: I have excel file showing live data of market, I watch this excel file from abroad through screenleap, I want to build a live watch up software by python or java and web application or any other coding to watch this live data and store them in my pc in a data base allowing me to watch the history of a few days back, here are the page names in excel file eurusd , eurjpy , eurchf , eurgbp , eurcad , eurcny , oil , eursgd , eurhkd , euraud , usdchf , usdjpy , usdcad , usdsgd , usdhkd, usdcny , 5yb , gbpusd , gbpcad , gbpjpy , gbpchf , gbpcny , gbpsgd , gbphkd , gbpaud , chfcny , chfjpy , nzdusd , nzdjpy , audusd , audcad , audnzd , audjpy , cadjpy , xauusd , BTC , ETH , CORN , audchf , ...

    $202 Average bid
    $202 Oferta promedio
    71 ofertas

    I’m ready to turn my concept into a fully-featured Android application and need an experienced developer to guide it from blank screen to Google Play. The goal is a clean, stable build that follows current Android guidelines, runs smoothly across modern devices, and ships with readable, well-commented code. You’ll help me refine the feature set, choose the right architecture, and handle every stage of the workflow—UI implementation, backend integration if required, testing, and final store submission. Once we agree on milestones, I’ll supply any additional assets or wireframes and stay available for quick feedback so the process keeps moving. Deliverables: • Production-ready Android APK and signed App Bundle • Complete, maintainable source code (Git) ...

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

    We need an engineer experienced with MZ Automation openIEC61850 to build a complete IEC 61850 Edition 2.1–compliant SCL package for our Smart Grid controller (Linux-based OEM device acting as an IEC 61850 Server via LAN). Deliverables SCL files: ICD / CID / SSD / SCD (as applicable) Conformance paperwork: PICS / PIXIT / TICS / MICS Automation (preferred): scripts/tools to generate plant-specific SCL from our plant configuration file for future installations Key Requirements All Logical Nodes / DOs are defined in our internal spec — implement exactly what’s listed (no guessing) Logical Node naming must comply with CEI 0-16 (Annex T) Data transmission: some values every 4s, some on change, some on request, plus controls/setpoints from client We want an optimized dataset/r...

    $250 - $750
    Sellado
    $250 - $750
    13 ofertas
    Logo kebahagiaan
    5 días left

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    $40 Average bid
    $40 Oferta promedio
    4 ofertas

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    $614 Average bid
    $614 Oferta promedio
    6 ofertas

    I’m extending my Bedwars1058 server into a truly competitive arena and need a ranked system coded right away. The core requirements are already mapped out—placement matches, ongoing MMR updates, a /rank lookup, and full data persistence—but the make-or-break piece is fair, dynamic matchmaking. Players must be grouped with opponents of similar rating, with the queue smart enough to widen its tolerance only when wait times get excessive. Everything has to slip neatly into the existing Bedwars1058 ecosystem; no changes to the core game, no clunky commands. Java, Spigot/Paper APIs, and solid MySQL (or equivalent) handling will all be in play. The finished module should: • Track first-ten placement games, establish an initial MMR, then adjust after every win, loss, kill...

    $26 Average bid
    $26 Oferta promedio
    22 ofertas
    Love now love
    5 días left

    App Name: Love Now App Type: Android (APK) – Interactive Couple Games Description: Love Now is an interactive app designed for couples and partners to enhance intimacy, emotional connection, and fun together. The app works on a single device, allowing both partners to play and interact directly on the same phone. App Goals: Improve communication between partners Create a playful and engaging atmosphere Provide daily games and challenges Track relationship progress with a fun “Relationship Level” Main Features: Account Setup User information: name, age, gender Partner information: name, age, gender, preferences Relationship status and duration Games Section Includes interactive games: Word Game: Each partner has a list of words; the app uses a built-in algorithm to match c...

    $221 Average bid
    $221 Oferta promedio
    42 ofertas

    I need a secure, lightweight VPN application built for both and Android. The interface can stay minimal; stability, speed, and protocol flexibility are the real priorities. Core capabilities I expect: • Kill switch that reliably blocks traffic if the tunnel drops • Split tunneling so the user can choose which apps bypass the VPN • Support for the following protocols or transport layers: ssh, ssl, udp, v2ray, and websocket • A menu of multiple server locations that I can expand later through simple JSON or similar remote config No in-app user-authentication flow is required; the build should assume pre-provisioned profiles or embedded credentials. Deliverables: 1. Clean, well-commented source code (/Kotlin or Java/) 2. Signed release builds ready for TestFli...

    $253 Average bid
    $253 Oferta promedio
    47 ofertas

    I am building a utility-style Android application and need an experienced Kotlin developer to take it from concept to a stable, Play-ready release. The core of the job involves: • Designing clean, maintainable Kotlin code that follows Android best practices (MVVM, Jetpack components, coroutines). • Implementing a small feature set typical of tools apps—think background services, permission handling, and a concise, responsive UI built with XML or Jetpack Compose. • Integrating basic analytics and in-app settings so the user can customise the experience. • Connecting the app to a lightweight local data store (Room or DataStore) for persistence. • Packaging, signing, and preparing a release build that passes Google Play requirements. I will provide...

    $149 Average bid
    $149 Oferta promedio
    21 ofertas
    Fix Java Excel Handling
    4 días left
    Verificado

    My Java-based desktop application currently throws errors whenever a user tries to import an Excel file, and the files it exports need a small formatting tweak before they are usable. The rest of the program works well, so I’m looking for someone who can go straight to the file-handling layer, diagnose the functional bugs, and leave the UI and business logic untouched. Here’s what I need from you: • Identify and resolve the exception that appears during Excel import (the stack trace will be provided). • Adjust the export file so that matches the format required (change date in american format to eu format). • Keep the fixes confined to the existing codebase—no major rewrites—while following the project’s current build process (Maven, Java...

    $155 Average bid
    $155 Oferta promedio
    148 ofertas

    I'm setting up a Minecraft server and need help modifying plugins to implement a player-to-player trading economy. Key Requirements: - Modify existing plugins or create new ones - Set up a secure and balanced player-to-player trading system Ideal Skills: - Experience with Minecraft server management - Proficient in plugin development and modification - Strong understanding of Minecraft economy systems Looking for someone who can bring my vision to life, ensuring a smooth and engaging trading experience for players.

    $125 Average bid
    $125 Oferta promedio
    75 ofertas

    I want a lean, dependable Android app that helps me log day-to-day sales without any bells and whistles. The flow is fixed at four material-designed screens: 1. Company creation 2. Product creation 3. Sales / POS entry 4. Report & Export Everything may live in a local SQLite (or similarly lightweight) database so figures stay put between sessions. Jetpack libraries are welcome if they speed things up. Deliverables I expect • Complete Android Studio project with tidy, well-commented code • Signed APK that installs on Android 9+ • Short README describing how to build, where the data sits, and how to trigger the CSV/email export If the compiled APK mirrors the four-step flow above, stores data reliably, and can push out a CSV or email attachment of all rec...

    $140 Average bid
    $140 Oferta promedio
    65 ofertas

    PROJECT OMEGA – FULL MOUNTAIN BLACKSITE Java Edition – $50 Flat (No Milestones) Budget $50 flat payment upon delivery. No milestone system. Version Minecraft Java Edition (mod-compatible). Full Scope Requirements I am requesting a fully hidden, mountain-integrated megabase including: Mountain Integration Entire base built inside a large mountain No obvious exterior modifications Hidden piston entrance Natural camouflage Large hollowed interior core Retractable Runway Large runway extending from mountain face Fully retractable and flush when closed Toggleable runway lighting Redstone controlled Connected hangar bay Rising Vehicle Platforms 8+ underground vehicle bays Each with piston elevator platform Vehicles rise to surface level Flush floor when closed Individual control p...

    $21 Average bid
    $21 Oferta promedio
    12 ofertas

    When my Android app is minimized, any YouTube video inside the WebView pauses immediately. I need a clean, reliable way to keep playback running in the background the same way the regular Here’s the current state of things: • I’m loading the video inside an Android WebView. • I have already experimented with various WebView settings—JavaScript, media playback flags, setMediaPlaybackRequiresUserGesture =false, etc.—but nothing has stopped the pause on “home” or “recent-apps” actions. • No alternative implementations (custom players, exo-player wrappers, or different WebView engines) are in place, What I need from you: 1. A working code solution (Java or Kotlin) that lets the video continue playing when the user switch...

    $83 Average bid
    $83 Oferta promedio
    16 ofertas

    I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

    $86 Average bid
    $86 Oferta promedio
    45 ofertas

    I'm seeking an experienced React Native developer to build the frontend for my iOS and Android app. Detailed designs for all screens will be provided. Key Requirements: - Develop multiple screens as per provided designs - Integrate backend APIs written in Java Ideal Skills and Experience: - Strong proficiency in React Native - Experience with API integration, specifically Java-based - Familiarity with mobile app development for both iOS and Android - Attention to detail and ability to follow design specifications I need someone residing in Mumbai

    $298 Average bid
    $298 Oferta promedio
    62 ofertas

    I’m ready to turn a solid concept into a polished Android application focused squarely on business and productivity for my customers. The end goal is a Play-Store–ready build that lets users handle three core jobs in one place: • Task management – create, assign, track, and get notified in real time • Invoicing & payments – generate invoices, accept card / wallet payments securely, and surface simple analytics • Lightweight CRM – store customer profiles, log interactions, and view a history that ties back to tasks and invoices A clean, modern UI is key because my audience is external customers, not internal staff. They need to open the app and immediately understand what to do next without training. Here’s how I picture the fl...

    $117 Average bid
    $117 Oferta promedio
    27 ofertas

    We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

    $360 Average bid
    $360 Oferta promedio
    16 ofertas

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