Java Jobs
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!
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I have some errors that came up during runtime and wanted someone to check them out and offer some guidance on what could be causing the errors.
In this assignment, you will use JUnit to perform Unit and Integration testing on the UniLife game. You need to download the game from Links to an external site. and run it your machine. Your auto testing code should include many different assertion statements (at least 7 different ones), such as assertEquals(), assertTrue() / assertFalse(), assertSame() / assertNotSame(), assertThat(), assertNull(), assertNotNull, etc. You also need to use annotations, fixtures, and some TestSuite() statements. For organization purposes, you may create an additional directory (folder) inside the directory of the game project to include all the unit test cases. In order to perform Integration testing, you will apply the Pairwise/Du technique to the methods you choose (two pairs are enough). In order to...
I am looking for an Experienced developer in C and Java (Android) who can help me create a .SO file for use in my Android app. Objective: - To hide certain app functionality inside a .SO so it makes it harder for the functionality to be reversed. - The .SO will be consumed by the Android app So for example, currently there is just a Java Class with Methods and the Android app calls those various Methods as required. In this case sending data to the server and getting a response. Decompiling the APK will reveal some information in that code. However if I have a .SO file instead and use that, it is much harder to reverse and find the information. Functionality: - I have converted a Java Class to C using an online converter. - The Class has multiple Methods that are used by the main A...
I am looking for a freelancer who can help me retrieve SQLite files from my ScanPal EDA51 Handheld. The purpose of this project is to backup and restore the files. I do not require assistance in implementing the backup and restore process, I just need the SQLite files. The files are needed within a week. Ideal skills and experience for this job include: - Proficiency in Android 7.1 - Experience with retrieving SQLite files from handheld devices - Knowledge of backup and restore processes - Ability to meet the deadline of retrieving the files within a week
I'm looking for android developer to upload my new app to his Google Play developer. I don't have developer account. Account must be with at least 1 app on it. Please send me link to 1 app you have and account dashboard screenshot so I will see it. Thanks!
I am in need of an urgent Android developer who has knowledge of JavaScript. The project requires specific Android functionality help. The project needs to be completed within a very short timeframe, as it only requires 1-2 hours of work. The ideal candidate for this job should have experience in Android development, with a strong understanding of JavaScript.
Lo importante es utilizar Java para el programa y de base de datos puede ser cualquiera con el IDE de Netbeans 13
I am in need of an urgent Android developer who has knowledge of JavaScript. The project requires specific Android functionality help. The project needs to be completed within a very short timeframe, as it only requires 1-2 hours of work. The ideal candidate for this job should have experience in Android development, with a strong understanding of JavaScript.
Software to Automate Invoice Entry with AI Learning I am looking for a skilled software developer to create a solution that automates invoice entry using AI learning. This project is for personal use, and I need the software to have invoice processing as its main feature. Key Requirements: - The software should be able to process and extract relevant information from invoices automatically. - It should have AI learning capabilities to improve accuracy and efficiency over time. - The ability to analyze and generate reports based on the processed invoice data is essential. Subject: Proposal for Implementing Automatic Invoice Entry System with AI Learning An advanced automatic invoice entry system. Project Overview: Our goal is to revolutionize our invoicing workflow by introducing auto...
Desarrollo de plugin para Atlassian Jira cloud, el plugin tendria funciones medio a basicas, se requiere conectividad con servicios de terceros por medio de sus API. Conocimientos y proyectos previos seria ideal, una vez desarrollado, se requerira mantener el desarrollo (Opcional).
I am looking for a freelance developer to create a simple barcode manager and creator. The project requires managing and creating both 1D and 2D barcodes. Skills and Experience: - Proficiency in Java programming language - Experience in barcode management and creation - Familiarity with 1D barcodes such as UPC or EAN, as well as 2D barcodes such as QR codes or Data Matrix The barcode manager and creator can be developed as a standalone application or integrated into an existing system, depending on the freelancer's preference.
Project Title: SFML OOP CPP - Game Development Summary: I am seeking a skilled developer for a game development project using SFML and object-oriented programming in C++. The project must be completed within a week. Requirements: 1. Proficiency in SFML and C++ programming language. 2. Experience in game development, particularly in creating interactive and visually appealing games. 3. Strong understanding of object-oriented programming concepts and principles. 4. Ability to implement game mechanics, animations, and user interactions using SFML. 5. Knowledge of software development best practices, including clean and modular code design. 6. Familiarity with version control systems, such as Git, for collaborative development. 7. Excellent problem-solving skills and ability to debug and opt...
I am looking for a Python ML developer who can assist me with a classification task. I do not have a dataset for this project, so I would need help acquiring one. The project needs to be completed within a week. Skills and experience required: - Strong knowledge of Python and machine learning algorithms - Experience in classification tasks - Ability to acquire and preprocess datasets - Familiarity with ML libraries such as scikit-learn or TensorFlow - Excellent problem-solving and analytical skills
I want application like this. I am attaching screenshot of that application
I am looking for a skilled Android developer to create an application with the main purpose of form filling and pdf generation. Design: - I have a specific design in mind for the application. Features: - I am open to suggestions for specific features and functionality. Ideal Skills and Experience: - Experience in developing Android applications - Proficiency in UI/UX design - Knowledge of form filling and pdf generation - Ability to propose and implement innovative features
Project Title: Custom Grafana Email Alerts for High-Frequency Conditions I am in need of a skilled freelancer who can help me set up custom Grafana alerts for high-frequency conditions. I specifically require email alerts to be triggered based on predefined conditions. Skills and Experience: - Strong knowledge and experience in customizing Grafana alerts - Proficiency in configuring email alerting systems within Grafana - Familiarity with setting up conditions and triggers for alerts - Ability to work with high-frequency alerts and ensure timely delivery of notifications Ideal candidate: - Has prior experience in implementing Grafana email alerts - Understands the importance of high-frequency alerting and can optimize the system accordingly - Can suggest best practices for defining cond...
We are seeking an experienced Chrome Extension developer to create a comprehensive extension that can record the visual content of a Chrome browser tab, capture the HTML of the page, and log user interactions such as clicks. This project requires a deep understanding of Chrome's extension APIs, JavaScript and a strong emphasis on privacy and security. Key Responsibilities: Extension Development: Develop a Chrome extension capable of recording the content of a browser tab. Implement functionality to capture and store the HTML content of web pages in real-time. Create scripts to detect and log user interactions like mouse clicks, recording details such as the element clicked and the time of the click. Privacy and Security: Ensure the extension requires explicit user consent befor...
Therapeutic Connections: Autism-Friendly Game for Kids" is an innovative and configurable game designed to enhance social skills and provide an entertaining platform for self-expression. The game allows therapists to create virtual rooms with customizable themes, colors, and background images. With a maximum of 20 screens, including 8 dedicated to game logic, the game ensures a dynamic and engaging experience for kids. Utilizing Xamarin or Unity, the game is natively available on Android, iPhone, and as a website, sharing the same codebase. User, team, and game information are stored in a database, and APIs handle authentication, data extraction, and updates. The gameplay involves kids logging in, setting up profiles with uploaded images, and participating in a guessing game where the...
Hello, The scope of this project is to update existing android apps. Some of the tasks will be: Update target sdk Update Admob/Ad libraries Change xml layout Thank you
I am looking for a skilled mobile application developer to create a social networking app for Android. The purpose of the app is to connect users and facilitate communication and interaction. Platform: - The app should be developed specifically for the Android platform. Features: - The client has provided a detailed list of specific features they want included in the application. Ideal Skills and Experience: - Experience in developing Android applications - Proficiency in programming languages such as Java or Kotlin - Familiarity with social networking app development and functionality - Ability to work with the client's detailed list of features and implement them effectively If you are a talented mobile app developer with experience in Android and social networking app develo...
I am looking for a skilled Java developer to create a simple code for a maze game using basic data structures. The level of complexity required for the game is intermediate. Requirements: - Must have experience in Java programming and data structures - Familiarity with game development concepts and algorithms - Ability to create a maze game with different levels and challenges - Must be able to implement basic game features such as player movement, collision detection, and scoring Features: - The game should have a user-friendly interface and intuitive controls - The maze should be randomly generated and have varying difficulty levels - The game should keep track of the player's progress and display their score - There should be a timer to add a sense of urgency to the game Timelin...
I am in need of a Glimmer (DSL LibUI) specialist who can build a simple GUI compatible with Windows. The ideal candidate should have experience in developing GUIs for Windows operating system. Requirements: - Develop a GUI with data input/output functionality - Implement interactive elements such as buttons and sliders - Incorporate visualizations into the GUI - Follow the specific design provided by the client Skills and Experience: - Proficiency in Glimmer (DSL LibUI) - Strong knowledge of GUI development for Windows - Experience in implementing data input/output functionality - Familiarity with interactive elements and visualizations in GUIs Note: The client has a specific design for the GUI, so the developer should be able to work based on the provided design.
I am looking for an experienced Android app developer to modify my existing wallpapers app by creating a database mysql with admin panel instead of firebase database. Skills and Experience Needed: - Proficiency in Android app development - Ability to implement new features efficiently and effectively - Attention to detail and ability to follow specific instructions - Problem-solving skills to troubleshoot any issues that may arise during the modification process The developer will not be responsible for uploading the modified app to the Google Play Store, as I will handle that aspect myself.
JPA Native Query takes a long time, I would like to implement fetch size to see if this will speed up data retrieval
PART-TIME TECHNICAL RECRUITER Are you passionate about tech talent and adept at assessing coding skills in Java and/or C#.Net? Websters NV in Belgium is seeking a PART-TIME TECHNICAL RECRUITER to assist with peer-review assessments for coding assignments and technical interviews. ROLE OVERVIEW: As a freelance Technical Recruiter, you'll play a crucial role in evaluating candidates' coding abilities. Your responsibilities will involve reviewing coding assignments and participating in technical interviews. Your expertise in Java and C#.Net will be instrumental in assessing candidates' proficiency and suitability for technical roles. JOB REQUIREMENTS Strong grasp of Java and C#.Net languages Experience in evaluating coding assignments Ability to conduct technical interviews ...
El proyecto consiste en una aplicación móvil generada con Android Studio que pueda mostrar las redes de bravais retrabajando un proyecto anterior que será proporcionado. La aplicación debe permitir elegir uno de dos modos: modo quizz y modo creativo. El modo creativo es que la aplicación pueda mostrar en una parte de la pantalla los controles para modificar los valores de los lados a, b, c y los ángulos α , β y γ. Al momento que estos valores cambien se debe cambiar el dibujo mostrado de la red y mostrar el nombre de la red, dependiendo de cuál de las 14 posibles sea la que corresponda. Además en alguna parte debe dar una explicación al usuario de porque es esa red la que se forma con esos valores. Todo esto d...
I am looking for a developer to create an Android app with utility functionality. Although I have a specific design in mind, I want the app to be user-friendly. The app is about scanning and generating a barcode or QR code for attendance. The ideal candidate for this project should have experience in Android app development and be able to create a user-friendly interface.
El proyecto consiste en una aplicación móvil generada con Android Studio que pueda mostrar las redes de bravais retrabajando un proyecto anterior que será proporcionado. La aplicación debe permitir elegir uno de dos modos: modo quizz y modo creativo. El modo creativo es que la aplicación pueda mostrar en una parte de la pantalla los controles para modificar los valores de los lados a, b, c y los ángulos α , β y γ. Al momento que estos valores cambien se debe cambiar el dibujo mostrado de la red y mostrar el nombre de la red, dependiendo de cuál de las 14 posibles sea la que corresponda. Además en alguna parte debe dar una explicación al usuario de porque es esa red la que se forma con esos valores. Todo esto d...
I am looking for a mobile app developer to create a service-based app for Android platform. The main purpose of the app is to provide a service to users. I have specific features in mind that I would like to include in the app, but I am open to suggestions and need help in finalizing them. Ideal Skills and Experience: - Experience in Android app development - Strong knowledge of mobile app design and user experience - Ability to suggest and implement innovative features - Excellent communication and problem-solving skills
Telegram Bot I am looking for a developer to create a Telegram bot with the following functionalities: - Provide information on demand: The bot should be able to respond to user queries and provide relevant information. - There is a similar bot that is published in telegram. We can write the name of that bot if texted to us. Platform: - The bot should pull information from a website. Number of users: - The bot will interact with approximately 1-100 users. Ideal skills and experience: - Experience in developing Telegram bots - Proficiency in integrating APIs and pulling data from websites - Strong knowledge of Telegram bot development and messaging API
Java Application for Real-Time Packet Monitoring and Security Analysis - Purpose: The main objective of this project is to develop a Java application that can effectively scan and analyze packets for security analysis. - Features: - Real-time packet monitoring: The application should be able to monitor packets in real-time, providing instant visibility into network traffic. - Alert system for suspicious activity: The application should have an alert system in place to notify users of any suspicious activity detected. - Detailed report generation: The application should generate detailed reports on packet analysis, providing insights into potential security threats. - Network Protocols: The application should support all common network protocols, including TCP/IP and UDP, to ensure compreh...
This project involves the development of a solution for discovery and setup of ubiquiti devices. Below are two repositories with two different example applications on which to finalize the work: The final delivery consists of the application sources and cross-platform builds.
I need one Female Android developer who may teach the online Class I need a serious and hard working female for long term
Food Delivery App Platforms: iOS and Android I am looking for a developer to create a basic food delivery app for both iOS and Android platforms. The app should be user-friendly and have a simple interface. Key Requirements: - Development for both iOS and Android platforms - User-friendly interface - Payment Gateway is not required - Easy registration and login process for customers - Integration of Google Maps for address selection and delivery tracking Optional Features: - Integration of social media login for quick access - Push notifications for order updates and promotions - payment options - COD Ideal Skills and Experience: - Proven experience in app development for iOS and Android platforms - Proficiency in programming languages such as Swift, Java, or Kotlin - Knowledge of RE...
I am looking for a freelancer to develop a sales program for my personal use on the Android platform. The program should include the following features: - Sales Forecasting: The program should have the capability to accurately predict sales based on historical data and current market trends. Ideal Skills and Experience: - Experience in developing Android applications - Proficiency in programming languages such as Java or Kotlin - Knowledge of sales forecasting techniques and algorithms - Familiarity with data analysis and visualization tools - Strong problem-solving and analytical skills If you have the skills and experience required for this project, please submit your proposal with examples of your previous work in Android app development and sales forecasting.
I am looking for a freelancer who can integrate SIP to Whatsapp call functionality for both mobile and desktop platforms. The integration should include basic call functionality without any advanced or customized features. Standard security features, such as encryption, should be implemented for this integration. i need use android as voip gateway. inbound calls via sip protocol into outbound calls via WhatsApp Ideal Skills and Experience: - Experience in integrating SIP to Whatsapp call functionality - Proficiency in mobile and desktop application development - Strong understanding of security protocols and standards
I am looking for a skilled developer who can create a basic Python application to extract study values from TradeStation charts using the TradeStation Developer API. The project requires the following: - Extracting Indicators from the TradeStation charts - Real-time updates of the extracted data - Some basic processing of the data will be required Ideal skills and experience for the job include: - Proficiency in Python programming - Experience with TradeStation Developer API - Knowledge of charting and data visualisation - Strong understanding of real-time data updates and processing If you have the necessary skills and experience, please submit your proposal for consideration.
I am looking for a Kotlin expert with experience in Android App Development. Skills and Experience: - Strong proficiency in Kotlin programming language - Extensive knowledge and experience in Android App Development - Familiarity with Android Studio and other relevant tools - Ability to work with existing code and make necessary improvements - Experience in developing basic level projects The project involves working on an existing codebase for a basic level Android app. The ideal candidate should have a good understanding of Kotlin and Android app development, and be able to make necessary improvements to the existing code.
I am looking for a freelancer who can help me with uploading a CSV file to my school management system. Currently, I am experiencing an issue where the system is not allowing me to upload the file, and it is displaying a "File type not supported" error message. Project Details: - This project is for an existing business, specifically for our school management system. - The format of the data in the CSV file is questions and answers. - The main issue we are facing is the "File type not supported" error message when trying to upload the CSV file. Skills and Experience: - Experience with school management systems and CSV file uploads. - Proficiency in troubleshooting and resolving file type errors. - Knowledge of data formats and handling in CSV files. If you have the r...
Project Description: - I am looking for a skilled developer to make a small patch in my application. - The application was developed using [programming language]. - The patch is required to fix a specific bug where the function in the app is not displaying the value t. - I have access to the source code of the application. - The ideal candidate should have experience in [programming language] and be familiar with debugging and patching applications. - Attention to detail and the ability to work efficiently are essential for this project. - The patch should be implemented in a timely manner to ensure the smooth functioning of the application. - Please provide examples of previous work or relevant experience in your proposal.
Estoy buscando un desarrollador de servidores con experiencia en customización. El proyecto es crear un servidor de minecraft survival con temática medieval fantástica con nuevos objetos, mods, misiones, rangos texture pack personalizado... ya cuento con muchos plugins y algunas texturas pero necesito alguien que se encargue de configurar todo y unificarlo para crearlo
I will share the details via chat box. Thanks!
Project Title: Android app with TF model integration Main Purpose of the Android app: Productivity TF Model Integration Complexity: Advanced Deadline for Project Completion: Within a month Skills and Experience Required: - Strong proficiency in Android app development - Extensive knowledge and experience in TensorFlow model integration - Ability to handle advanced TensorFlow model integration and customization - Proficiency in Java and/or Kotlin programming languages - Familiarity with machine learning and deep learning concepts - Experience in optimizing app performance and memory management - Strong problem-solving skills and attention to detail - Excellent communication and collaboration skills to work with the client and project team effectively.
I am looking for an expert Java developer to create an Akamai Sensor data generator script for web Akamai. Skills and Experience: - Proficiency in Java programming language - In-depth knowledge of Akamai Sensor data - Experience in creating data generators - Familiarity with web development and performance optimization Project Scope: - Develop a Java-based Akamai Sensor data generator - Generate realistic sensor data to mimic real user interactions on the web - Ensure accurate and reliable data generation - Optimize the generator for performance and scalability Timeframe: - The project needs to be completed within 1 week Budget: - My price range for this project is 15,000 - 30,000(INR).
I am looking for a Java developer with experience in wildfly 30 app development. The project requires specific functionality for user authentication. Skills and experience: - Strong knowledge of Java programming language - Experience with wildfly 30 app development - Proficiency in user authentication implementation The client requires ongoing maintenance after the initial development. The timeline for this project is urgent, with a deadline of 1-2 weeks.
I am looking for a programmer to create a program that will automate the process of creating various documents such as invoices, credit notes, statements, packing lists, and quotations using Microsoft Word. Requirements: - The program should be able to generate these documents based on user input. - The program should be able to create a template for these documents. Ideal Skills and Experience: - Proficiency in microsoft words programming. - Experience in working with Microsoft Word and creating templates. - Knowledge of accounting software, specifically Xero, would be beneficial for integrating the program with the accounting system.
Project Description: - I am looking for an Android developer to fix a small bug in my app. - The specific issue I am experiencing is that the app is crashing on launch. - I have access to the source code of the Android app. - The app should support the latest versions of the Android OS. - The ideal candidate should have experience in Android app development and debugging. - Knowledge of Java and Android Studio is required. - Attention to detail and the ability to troubleshoot and fix bugs in a timely manner is essential. - The project should be completed within a specified timeframe. - The developer should be able to provide regular updates and communicate effectively.
The project involves developing a mobile application using Android Studio that can display Bravais lattices by reworking a previous project, which will be provided. The application should allow choosing between two modes: quiz mode and creative mode. In creative mode, the application should display controls on a part of the screen to modify the values of sides a, b, c, and angles α, β, and γ. When these values change, the displayed lattice drawing should also change, showing the name of the lattice corresponding to one of the 14 possible options. Additionally, there should be an explanation to the user of why that lattice is formed with those specific values. All of this should be within the same window. In quiz mode, the application presents 10 questions. Each question in...
Hello, I am looking for an experienced and dedicated developer to help me with coding questions. I need help with any one programming languages like Python, Java, and C++. The person I hire will be expected to solve hard problems that are not available on the Internet within 2 hours. Please only contact if you have done CP and have a good rank.
I am looking for an experienced Android developer to create a Barcode Reader WMS App that will primarily read 1D Codes. Requirements: - The app should have the ability to perform data analytics, in addition to reading barcodes. - The design preference for the app is minimalist. Ideal Skills and Experience: - Strong knowledge and experience in Android app development. - Proficiency in working with barcode scanning libraries and APIs. - Experience in implementing data analytics functionality within an app. - Ability to create a minimalist and user-friendly design. If you have the necessary skills and experience, please submit your proposal.