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 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 today!

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Szűrés erre:
    Munka státusza
    275 munka, árazás ebben: EUR
    Fix Android Application Feature 6 nap left

    I need someone who is proficient in Esri. 1. Fix navigation- this is the navigation of the current location to the nearby evacuation centers. 2. Fix location- this feature should show the current location of the device. 3. Add profile tab/page. 4. Add all the dependents list (current only display and can edit 1)

    €61 (Avg Bid)
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    8 árajánlat

    I am in need of a Java developer to complete a simple task for an assignment project. The project has specific requirements that must be followed. The deadline for this project is extremely tight, with only 2-3 hours available to complete the task. Note : have experience with Java FX and have to work in Eclipse 2. Must Have work on My Pc with Anydesk or Team Viewer

    €78 (Avg Bid)
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    6 árajánlat
    spy andrido 6 nap left

    Project Title: Spy Andrido I am looking for an experienced android developer to create a spy android app for monitoring employees. The app should have the following features: - GPS tracking - Call recording - Text message monitoring The ideal candidate should have experience in developing spy apps and be able to create an undetectable app. The app should run silently in the background without any visible notifications. If you have any questions or need more information, please feel free to contact me.

    €1052 (Avg Bid)
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    17 árajánlat
    set up llm search engine 6 nap left

    I am looking for a freelancer to set up a LLM search engine for research and development purposes. The preferred search engine is Algolia or Elasticsearch. I have data to be indexed but no existing database or index. The ideal candidate would have experience in setting up search engines and be proficient in Algolia or Elasticsearch.

    €15 / hr (Avg Bid)
    €15 / hr licitátlag
    9 árajánlat

    Necesito la creacion de algunos plugins, y la manipulacion de otros existentes para un servidor de minecraft, en desarrollo acerca de ciudades

    €130 (Avg Bid)
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    1 árajánlat
    AI4yourORnow 6 nap left

    AI4yourORnow Project Description Project Goal: Improve Efficiency We are looking for an experienced AI developer to help us implement machine learning technology in our project, AI4yourORnow. Our main goal is to improve efficiency in our operations, and we believe that machine learning is the best way to achieve this. Ideal Skills and Experience: - Intermediate level AI expertise - In-depth knowledge of machine learning technology - Experience in implementing machine learning algorithms - Familiarity with data analysis and interpretation - Ability to integrate machine learning models into existing systems AI Technology to Implement: Machine Learning We have decided to implement machine learning technology in our project to achieve our goal of improving efficiency. We ar...

    €37 / hr (Avg Bid)
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    6 árajánlat

    We need an Android application which share the screen using VNC viewer to the server

    €148 (Avg Bid)
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    6 árajánlat

    My project is to decrypt a .so file. This file requires decryption in order to access the contents, as it was originally a text file. The programming language of choice should be .so, as this language will give the best chance of successfully decrypting the file. The encrypted data in this file is important to me and requires the utmost precision in order to restore the information within. Accuracy and speed are of equal importance in this project, as it needs to be completed as soon as possible. If I am satisfied with the results, I can offer continued assistance with other projects.

    €159 (Avg Bid)
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    3 árajánlat
    Build an Android app 6 nap left

    We need to build an Android app something similar to Please bid with the best rate and if you could able do it from scratch.

    €413 (Avg Bid)
    €413 licitátlag
    9 árajánlat

    Employee Monitoring App for Android Devices I need a monitoring app for my company's Android devices that allows me to track employee activity in real-time. The app should have the following features: - Live Screen Mirroring: It is important that the app allows me to see what my employees are doing on their screens in real-time. - GPS Tracking: I need to be able to track the location of my employees to ensure they are where they are supposed to be. - App Usage Tracking: It is important that I can monitor which apps my employees are using and for how long. - Call and Message Monitoring: It is important that I can monitor my employees' phone calls and text messages. The app will be used by 11-50 employees, so it should be able to handle multiple users. Ideal skills and experi...

    €78 (Avg Bid)
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    3 árajánlat

    I am looking for a skilled freelancer to help me write a Java code that will be used to create the Rock, Paper, Scissors game. I am not looking to simply copy/paste the code for my homework; instead I'm looking for someone to tutor me and help me not only write the code, but understand what I'm doing. This is a high school project and needs to be written in Java, with code written from scratch, so no fancy libraries. I have 4 days to complete the code. The important detail is the variation that needs to be implemented. The player and the computer each start out with TWO hand gestures randomly selected. The computer gets two gestures and randomly selects one. The player gets two gestures and needs to pick one by pressing one of the keys R,P or S shown in the GUI - see the pict...

    €106 (Avg Bid)
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    23 árajánlat

    I am seeking a skilled programmer to help with a coding assessment for an advanced Java Backend developer project. The ideal candidate should have experience in Java programming language and be able to solve complex coding challenges. The assessment is designed to test the candidate's skills in Java development along with Angular and should include topics such as Java and Angular. The successful candidate will be expected to help with taking this coding assessment

    €177 (Avg Bid)
    Sürgős Garantált
    9 pályamű
    Trophy icon Coding Assessment 6 nap left

    I am seeking a skilled programmer to help with a coding assessment for a Java Backend developer project. The ideal candidate should have experience in Java programming language and be able to solve complex coding challenges. The assessment is designed to test the candidate's skills in Java development and should include topics such as Java and Angular. The successful candidate will be expected to help with taking this coding assessment

    €177 (Avg Bid)
    4 pályamű
    Consultant Java Developer Sr 6 nap left

    Must have: 1. Spring Boot – Java 8, Spring Core, Spring Boot, Spring MVC, Swagger, Tomcat 8, Maven, Jenkins, SVN, GIT, Postman/Newman, RESTful Services, Containers 2. Excellent verbal communication skills is a MUST.

    €10 / hr (Avg Bid)
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    12 árajánlat

    Preciso de uma aplicação de turismo, algo relacionado com viagens, recomendações de hotéis, restaurantes, pontos turísticos, etc... . Apenas para a região de Braga, Portugal . A app precisa de ter conexão a um banco de dados e login/registro.

    €277 (Avg Bid)
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    7 árajánlat

    I am looking for a freelancer who can develop an employee management system for my company. The system should have the following features: - Time and attendance tracking - Payroll processing - Performance evaluation Our company is a medium-sized organization with 50-500 employees. We prefer a cloud-based deployment method for the system. The ideal candidate for this job should have experience in developing employee management systems, and should be proficient in programming languages such as Java, Python, or Ruby. They should also have knowledge of database management systems and cloud computing.

    €10 / hr (Avg Bid)
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    14 árajánlat

    Cyber awareness saas based platform. ## 2. User Requirements ### 2.1 User Roles 1. **General Users**: These are individuals who access the platform to learn about cyber security best practices and improve their knowledge. 2. **Administrators**: These users have elevated privileges and can manage the platform's content, user accounts, and access analytics. ### 2.2 User Features 1. User Registration and Authentication: - Ability for users to create accounts with a unique username and password. - Secure authentication mechanisms, including password hashing and encryption. - Support for social media account integration (optional). - "Forgot password" functionality to reset passwords securely. 2. User Dashboard: - Personalized dashboard displaying relevant inf...

    €8781 (Avg Bid)
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    13 árajánlat

    Augmented Reality Measurement Mobile Android App

    €75 (Avg Bid)
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    3 árajánlat

    we require a experienced micro-frontend and microservice expert for a long running project. This project is a test task to show you expertise about it. Backend Environment will be - jhipster (latest) - java 17 - spring-boot (with jhipster) Frontend Environment will be - microfrontend with jhipster - angular (with jhipster) What you need to implement: A microserviced application. Having these backends: - user management backend to add and maintain users - a scheduler backend which uses cron based executions to run specific jobs by defined crons - a backend which provides services to have (internet) traffic based data like rank, impressions, clicks. displaying the data is limited to the users roles, if the user is allowed to view the data Having these frontends (as microfrontends) - a ...

    €99 (Avg Bid)
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    5 árajánlat

    Hello am looking GP consol for uplod my 4 android game applications for this my total budget for 4 apps is 700 Inr if someone have interested message me am looking forward to you Thanks

    €7 (Avg Bid)
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    13 árajánlat

    I want a fixed price for a update. (I always work with fixed prices cause this is a personal project.) Prices per Milestone please. Small overvieuw of the existing app. It is a app for registration hours. You can do this on 3 different ways. 1 Manual input 2 Scan (you scan a QR code) 3 Start Job ( you select a Client and project and you type a job that you start at that moment) You always can see history from 3 days before today older history is only visible on the website. The app is possible to use online and offline. There is a admin page on the app , here you can add clients or projects , or change settings. On the website you can access the database to add or change clients jobs projects and hours … You can see from your company (1 admin user per company) all users and hou...

    €608 (Avg Bid)
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    58 árajánlat

    I am looking for a Java developer who can assist students in their certification exams on an urgent basis. The developer should have an intermediate level of expertise in Java. The project will involve providing assistance to students in their exam preparation. Ideal skills and experience for the job include: - Strong proficiency in Java programming language - Experience in assisting students in exam preparation - Knowledge of certification exam topics and formats - Ability to communicate effectively with students and provide clear explanations and guidance If you have the required skills and experience, please apply for the project.

    €20 (Avg Bid)
    €20 licitátlag
    8 árajánlat

    Seeking a software developer from Pakistan to develop a software with basic features. The deadline for the project is flexible. The ideal candidate should have experience in Java, Python, or C++. The software should be user-friendly and efficient. The project brief will be provided with custom features to be included in the software.

    €165 (Avg Bid)
    €165 licitátlag
    12 árajánlat

    I am looking for a freelancer who can help me with unit testing for my Java project. The scope of the project is limited to unit testing only. The code complexity is moderate, and I need someone who can write Junits with mockito for my new work. Ideal skills and experience: - Excellent knowledge of Java programming language - Experience in unit testing with mockito - Strong proficiency in writing high-quality Junits - Good understanding of moderate code complexity - Attention to detail and ability to identify and fix bugs in the code.

    €7 / hr (Avg Bid)
    €7 / hr licitátlag
    8 árajánlat

    I am looking for an experienced Android app automation developer with advanced level expertise to help with our project. Our main goal is to reduce errors in our app automation process. We prefer the Appium testing framework as it is open source and supports a wide selection of different types of applications. We need someone with an in-depth understanding of Android app automation and the Appium testing framework to ensure this project is successful.

    €123 (Avg Bid)
    €123 licitátlag
    14 árajánlat
    Mobile App - Recovery Experts 6 nap left

    I am looking for a talented freelance developer to help me create a mobile application for Recovery Experts. The app should have an Android-centric focus and must include user interface design, as this is a critical component of the project. With the user interface design, we would like the app to be aesthetically pleasing and easily navigable. Integration with other existing systems is not necessary at this time. The ultimate goal is to have a streamlined app that meets all outlined requirements without any major glitches. We need someone experienced in building mobile applications, and that has a keen eye when it comes to design and user experience. Understanding the target audience and their needs is also essential. As we are looking for quality work, the developer should be able to d...

    €2305 (Avg Bid)
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    82 árajánlat
    Java Backend 6 nap left

    I am looking for a Java Backend developer to handle the application logic and processing for my project. The ideal candidate should have experience with Java EE and be comfortable working with an In Memory database. Key requirements: - Develop the backend using Java EE - Handle application logic and processing - Work with an In Memory database Skills needed: - Java EE - Experience with In Memory databases If you are a skilled Java Backend developer with experience in these areas, please apply for this project. Designing Calendar service

    €151 (Avg Bid)
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    51 árajánlat

    I am looking for a developer to create a refer and earn website with Telegram API. I want to hire only those developers who have worked on Telegram API and bot before. Features - Login/Signup - Telegram - Telegram Channels Join Tracking - Bot - referral systems Ip based tracking. - Daily Login Rewards/referral Daily Login Rewards - Points Reddem in Gift Card. - Points History. - Simple Design. Ideal skills and experience: -Experience with Telegram API -Experience in creating referral systems -Design skills to create a visually appealing website -Ability to integrate payment systems for rewards for referrals.

    €102 (Avg Bid)
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    12 árajánlat
    App develpor 5 nap left

    I am looking for an experienced app developer to build a new app for both Android and iOS. This unique project requires skills in creating a mobile app with advanced features, including location-based services. The app will be of medium size, and we will require you to have experience in designing and creating professional-grade apps. You should be able to think through the user interface design, understand how to create gamification and incorporate social media elements into the app. You should also have a solid understanding of the different platforms' APIs and their capabilities, as well as experience in efficiently troubleshooting technical issues. We are also looking for someone who can help us develop the backend architecture behind the app. This includes understanding our...

    €172 (Avg Bid)
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    14 árajánlat
    Looking for a Java developer 5 nap left

    I'm looking for a Java developer who has solid experience in writing clean, efficient and performant code Experience in automated testing and performance testing would be ideal. Please message and I will provide a detailed outline of the work involved.

    €158 (Avg Bid)
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    38 árajánlat
    HD TikTok Downloader 5 nap left

    As a client seeking to create an HD TikTok video Downloader App simillar to my figma prototype link is here, All features for this project simillar of my prototype so please be bit analysis my prototype and rearange the all features and functions. and the platform the application should be developed for is Android. Therefore, I am requesting assistance in creating a user-friendly and intuitive HD TikTok Downloader app for Android that allows users to download videos at 1080p resolution, MP3. This will be a cross-platform application so it can be compatible with all Android devices. The goal of this project is to create a TikTok Downloader that is easy to use and provides top-of-the-line quality.

    €547 (Avg Bid)
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    22 árajánlat

    Design a calendar service that can create events for users. Mandatory Requirements: Users can enter their shift timings (working hours) or create busy slots. It’s possible for users to have more than one shift in a day. Users can fetch events of themselves and other users. Users can create events with other users for a defined start time and end time and delete events created by themselves. Organizer of an event can fetch the most favorable upcoming empty slot for a given set of users and a particular duration. For instance user A would like to check the favorable slot with user B, user C to set an event of 4 hours duration. This would require user A to check the upcoming events in his/her calendar as well as for user B, user C. Users can fetch events where they have conflicts for ...

    €87 (Avg Bid)
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    12 árajánlat

    I am looking for a skilled developer to create a Tours and Travels Project for me. I am looking for a developer who can complete my university project asap, I have a preference for using SQL Server as the database system. I am looking for a developer who can complete the project in less than 5-10 days. Experience for this job includes: - Expertise in development - Package Tours - Car Rental Service - Information Desk - Problem Definition - Sales Analysis - Experience in working with SQL Server databases - Ability to deliver high-quality work within a tight timeline.

    €222 (Avg Bid)
    €222 licitátlag
    12 árajánlat

    I need a software developer to create a Cross-platform (Windows and iOS) POS software that can be used offline and syncs online. The software should have the following features: - POS - Inventory Management: I need to be able to track my inventory and know when I need to restock. - Sales Reporting: I require detailed sales reports that include information such as the number of items sold, the total revenue generated, and so on. - Employee Management: I need to be able to manage my employees, including tracking their hours worked and their sales performance. - Sales Report The software should also be able to process both Credit Card and Cash payments. To be considered for this project, you should have experience developing POS software and be familiar with the following technologies: - Wi...

    €13 / hr (Avg Bid)
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    4 árajánlat
    Make IP shifter 5 nap left

    I am looking for a freelancer who can create an IP shifter that will shift my IP address to a random one for privacy protection. The platform should be cross-platform (Windows and macOS). The ideal candidate would have experience in IP shifter development and be able to create a user-friendly interface. The specific requirements for the project are: - The IP shifter should be able to shift to a random IP address - The platform should be cross-platform (Windows and macOS) - The primary purpose of the IP shifter is privacy protection. - The user interface should be simple and user-friendly. - The ideal candidate should have experience in IP shifter development.

    €521 (Avg Bid)
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    23 árajánlat

    AR Android+Java/Kotlon app for measurement Flutter is not allowed Msg me for more details

    €215 (Avg Bid)
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    24 árajánlat
    Various projects 5 nap left

    Apply with the monthly salary you require. I need more programmers to work in my company. They will work for a fixed monthly salary + bonuses. Occasionally come to Bosnia and Herzegovina with all expenses paid. You would work fixed hours

    €505 (Avg Bid)
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    Crypto Ai bot 5 nap left

    I need a bot linked to a websocket to automatically buy coins on Bianca depending on keywords. The initial bot will need to be modified by myself to add more keywords and blacklist words. It needs to automatically then sell after a certain percentage of profit has been made and auto sell if a lose of a certain percentage has been made.

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    34 árajánlat
    Naive Bayes Application Development 5 nap left

    I am looking for a freelancer with experience in developing a Naive Bayes application for document classification using Python. The purpose of the application is to classify documents into different categories based on their content. Ideal skills and experience for the job include: - Strong expertise in Python programming language - Knowledge of Naive Bayes algorithm and document classification techniques - Previous experience in developing similar applications Please provide your experience in your application. Thank you!

    €157 (Avg Bid)
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    29 árajánlat

    Hi I want to develop whatsapp bulk message sender software. If you have already built please send your proposals. Thanks

    €453 (Avg Bid)
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    28 árajánlat

    Hello Now I have big Android Mobile App project. But as I don't know about Android development, so I can't handle this project by myself. If you wanna work with me, message soon.

    €18 - €36 / hr
    €18 - €36 / hr
    67 árajánlat

    I am looking for an Android developer to work on an Android application (Kotlin and Java). The ideal candidate should have experience with developing apps with custom features. There are continuous needs on building and integrating new tools. We are looking for a highly skilled developer with commitment to the project.

    €10 / hr (Avg Bid)
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    57 árajánlat

    I'm looking for a capable software developer to join my team and complete a project within a tight timeline. The project requires specialized skills for data processing, user interface design, and the integration of existing systems. The project should be completed within a month or less. Perfect candidates will have experience with Java, Python, or C++ programming languages. If you feel you have the necessary skills and can work within these requirements, I look forward to hearing from you.

    €158 (Avg Bid)
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    Hi, I am searching for java backend developer that work with me to create some api services (using spring and mysql) to complete the web app java backend. I want to make sure before we go to interview if u have following skills We need a backend developer (huge plus if you are full stack developer) with 3+ years’ experience, with the following skills and requirement:  Java  Spring  Client-Server communication  Verify phone by SMS (firebase)  SQL language  Object Oriented Knowledge in the following tools is required:  Eclipse, Maven, xampp(Tomcat, MySQL Server), GitHub, Postman I need developer that have all of the above skills and ready to work with them from the first day. If you have all skills above, we can proceed to interview and if everything will go fine in inter...

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    21 árajánlat

    Necesito a alguien que pueda realizar ingeniería inversa en un binario de Golang con el fin de depurar y optimizar. Aunque tengo documentación parcial, no tengo el código fuente. Las habilidades y experiencia ideales para este proyecto incluyen: - Experiencia en Golang - Conocimiento avanzado de herramientas y técnicas de ingeniería inversa. - Experiencia en depuración y optimización de binarios. - Familiaridad con documentación parcial e ingeniería inversa sin acceso al código fuente.

    €10 / hr (Avg Bid)
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    8 árajánlat

    Description: We are seeking an experienced Java developer on to assist us in setting up a development environment, building, and deploying an existing Java system. The system is currently stored in the Assembla repository and requires expertise in Java, Zuk framework, and Maven. Responsibilities: - Set up a development environment for the existing Java system. - Build the system using the Zuk framework and Maven. - Deploy the system to a production environment. - Provide comprehensive documentation on how to manipulate and manage the system. Requirements: - Strong proficiency in Java programming. - Experience with the Zuk framework and Maven. - Familiarity with setting up development environments and deploying Java applications. - Attention to detail and ability to follow ...

    €20 / hr (Avg Bid)
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    36 árajánlat
    Java developer 5 nap left

    I am looking for an experienced Java developer to help create a mobile application within a two-day timeline. The project requires expertise with Springboot as our preferred development platform, leveraging the application to create a fully functional mobile application from scratch. With the target platform being a mobile device, the software engineer will need to be familiar with the nuances of developing for such a platform to ensure an end product that offers seamless user interactions and gorgeous visuals. Attention to detail is a must, as the finished product needs to meet high standards of quality. If you are up for a challenging project with a strict timeline, then this is the ideal opportunity to showcase your skill set and develop something truly remarkable.

    €14 (Avg Bid)
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    9 árajánlat
    i need a coder 5 nap left

    a knapsack problem i will attach a file

    €140 (Avg Bid)
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    18 árajánlat

    I am looking for a Hotel Property Management System Software that will help to manage the hotel efficiently. The software should have the following features: - Reservation Management - Housekeeping Management - Inventory Management - Reporting and efficiently in occupancy - Managing the F&B, laundary and travel - Managing with outside booking system and payment management system I prefer a cloud-based solution as it will allow me to access the software from anywhere. The software should be programmed either in PHP or Java. The ideal freelancer for this project should have experience in developing hotel management software, proficiency in PHP or Java, and knowledge of cloud-based solutions. They should also be able to deliver the project within the specified time frame.

    €348 (Avg Bid)
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    52 árajánlat

    I am looking for an experienced Android developer to fix the bugs and reconfigure my app. The main issue I am having is the app crashing. Luckily, I have both the source code and any required documentation available to make the project easier. I need this work completed within a week as my target market is relying on the smooth running of the app. If you think you could help me with this project, do get in touch.

    €102 (Avg Bid)
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    24 árajánlat

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