Java

I need a secure payment processing website and engine. The site should support credit/debit cards, PayPal, and cryptocurrency. It must handle recurring payments. Essential security features: - Two-Factor... (Budget: $250 - $3000 USD, Jobs: API Integration, Artificial Intelligence, Java, Payment Gateway Integration, Payment Processing, PCI Compliance, Web Development)

I need a Java application for text formatting. The app should support plain text (TXT) files and include the following formatting features: - Bold, Italic, Underline - Alignment options (left, center,... (Budget: $2 - $8 USD, Jobs: Agile Development, Debugging, Desktop Application, Java, JavaFX, JavaScript, Software Architecture, Software Engineering)

Phase 2 – Custom AI Build Milestone 1 – Requirements & Dataset Setup Initial Milestone, Will be Released at Start Project Documentation Finalize detailed AI scope, define metrics (DBH accuracy, canopy, clearance)... (Budget: $250 - $750 USD, Jobs: Android, Computer Vision, iPhone, Java, Machine Learning (ML), Mobile App Development, OpenCV, Python)

Project Overview I need an experienced Android developer to resolve audio capture permission issues for a call recording app that's been installed as a system app but cannot obtain CAPTURE_AUDIO_OUTPUT permission... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Android App Development, Android SDK, C Programming, Java, Mobile App Development, Reverse Engineering, Technical Documentation)

我准备在 Telegram 上部署一款侧重数据统计与分析的小程序/机器人，核心任务是自动采集群组或频道中的用户活动与消息内容，并生成可视化报表或 API 供后台查看。除统计功能外，需要支持用户自定义的自动回复，以便在特定场景下推送提示或互动信息。 技术栈全部采用 Java + Spring Boot；如果你拥有 5 年以上相关经验，能够熟练运用常见持久层框架与消息中间件，并且可以用中文流畅沟通，这个项目会非常适合你。项目规模不大，目标在... (Budget: $1500 - $3000 USD, Jobs: API Development, Java, RESTful, Spring Boot)

I need a solution to automate clicks on a button and other elements on a web application using Selenium. The automation should work on Chrome. Ideal Skills and Experience: - Proficiency in Selenium -... (Budget: $10 - $30 USD, Jobs: API Testing, Automation, Java, JavaScript, Python, Selenium, Software Testing, Web Development, Web Scraping, Web Testing)

Freelance Developer Job Posting: Android Audio Capture Implementation Position: Android System-Level Developer (Hourly Contract) Duration: 1-2 weeks Budget: $5-15/hour (negotiable based on experience)... (Budget: ₹400 - ₹750 INR, Jobs: Android, Android App Development, Java, Mobile App Development, Technical Documentation)

We are looking for an experienced backend developer (or small team) to build a paper-trading engine similar to Neostox, designed to handle ~20,000 concurrent users. #Core Requirements# Real-time market data ingestion (WebSocket/REST) → normalize tick-by-tick (Bid/Ask/Last/Volume/Timestamp)... (Budget: ₹50000 - ₹500000 INR, Jobs: Backend Development, C++ Programming, Docker, Java, Node.js, PostgreSQL, Python, RabbitMQ, Redis, REST API)

I want to release a first-iteration Android app that lets shoppers dress a fully rotatable 3D human avatar and move straight into a purchase flow. The core experience is simple but must feel smooth and... (Budget: ₹150000 - ₹250000 INR, Jobs: 3D Animation, 3D Rendering, Android, Augmented Reality, Java, Kotlin, Mobile App Development, Unity, Unity 3D, Visual Effects)

I need an AI developer to create a desktop application. The application should be compatible with Windows operating systems. Although I initially mentioned software as the application type, I am open to... (Budget: £750 - £1500 GBP, Jobs: AI Development, Artificial Intelligence, C# Programming, Computer Vision, Java, Natural Language Processing, Predictive Analytics, Python, Software Architecture, Windows Desktop)

I need to make specific changes to our barcode scanners, which are written in Java. The primary focus is on updating the scanning functionality and modifying the user interface. Specifically, I want to increase compatibility with different barcode types, particularly Data Matrix codes... (Budget: £250 - £750 GBP, Jobs: Java, Java Spring, JavaScript, Mobile App Development, PHP, Software Architecture, Software Development, Software Engineering)

I'm seeking an experienced Java developer to create a cross-platform desktop application (Windows, MacOS, Linux) with a focus on data processing. Key Requirements: - Develop a robust data processing module... (Budget: ₹600 - ₹1500 INR, Jobs: Android, C++ Programming, Data Processing, Desktop Application, Java, Java Spring, JavaFX, Software Architecture)

I'm looking to develop an Android app similar to Streamlabs, enabling users to go live effortlessly without any login requirements. The interface should closely mimic Streamlabs, and it should include:... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Android App Development, Android SDK, Java, Mobile App Development, PHP, UI / User Interface, UX / User Experience)

I need a simple educational Java GUI application for an assignment. The project should be built using Swing. Key Requirements: - Basic functionality (e.g., a simple calculator, to-do list, or similar)... (Budget: ₹600 - ₹1500 INR, Jobs: Desktop Application, Java, JavaFX, JavaScript, Software Architecture, Software Development, Software Engineering, User Interface / IA)

My Android app needs a quick round of polish. Right now several screens show inconsistent fonts—sizes jump, weights differ, and the overall look feels off-brand. I’d like you to dive into the existing layouts, correct those font style issues, and push a small update back to me... (Budget: $10 - $30 USD, Jobs: Android, Android App Development, Android Studio, Android UI Design, Java, Kotlin, Mobile App Development, XML)

I play Auto Masters on an Android phone and already have an automation app installed, but I need a robust macro that can push my account as far up the levels as the current game logic allows. The script... (Budget: $10 - $30 AUD, Jobs: Android, Android App Development, Automation, C# Programming, Game Development, Java, Mobile App Development, Scripting)

I need a small, offline-first inventory application that installs and runs natively on Windows. The workflow is straightforward: record purchases, record sales, and view an item-wise stock ledger that updates automatically after every transaction... (Budget: ₹12500 - ₹37500 INR, Jobs: .NET, C++ Programming, Inventory Management, Java, Python, Software Architecture, Software Development, SQLite)

We are building a acupucture treatmetn interaction app for both Android and iOS platforms. The app involves working with hardware-level features such as microphone, speaker, display, background processes, and notifications... (Budget: $2 - $8 USD, Jobs: Android, Expo, iPhone, Java, Kotlin, Mobile App Development, React Native, Stripe, Swift, XML)

I need a web app for my family salon to streamline appointment bookings. Key Features: - User-friendly interface for booking appointments. - Calendar integration to manage availability. - Notifications for upcoming appointments... (Budget: ₹600 - ₹1500 INR, Jobs: Database Management, Graphic Design, HTML, Java, React.js, Spring Boot, UI / User Interface, User Experience Research, Web Development, Website Design)

Senior Android Developer – Salesforce Integration (2-week Contract) Duration: Sept 8–21 (2 weeks, full-time, Mon–Fri, 8h/day) Location: Remote/Hybrid Language: Native Spanish + Technical English About the Project Support the integration of the Android app Accesar with Salesforce... (Budget: $250 - $750 USD, Jobs: Android, API Integration, API Testing, Java, Kotlin, Mobile App Development, REST API, Salesforce App Development)