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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une procédure pour désactiver le clavier physique d'un PDA sous Android avec windev mobile 23 a intégrer dans une application Android deja fait.
I am looking for an Android app developer who can create a social networking app with MLM functionality. The ideal candidate should have experience in developing Android apps and be able to complete the project within 7 days. Key requirements for the project include: - Developing an Android app with social networking features - Implementing MLM functionality within the app - Ensuring the app is user-friendly and visually appealing - Integrating necessary APIs and databases for seamless functionality - Testing and debugging the app to ensure it is free from errors - Delivering a high-quality app within the specified timeframe Skills and experience required: - Strong proficiency in Android app development - Experience in developing social networking apps - Knowledge of MLM functionality...
I am in need of a Java programmer who can assist me in creating a crowd simulation prototype for Umrah event. T The freelancer must have experiences in working with GIS using JAVA. The project must do the following: - Define the Umarh route from entrance to Tawaf to Masa'a to exist. The route actually represent the real route in terms of design and dimension. - Simulate the Umrah event. Each pilgrim has a location on the route while performing. The number of pilgrims can be changed as an input each time the prototype is running. The prototype monitors the crowed states in each square metre. - Enable defining rules for detecting and predicating crowed incidents. For example, the prototype gives alerts if the number of pilgrisms is more than 3 in each square metre. However, about ...
I am in need of immediate technical support for an existing project. The main issue I am currently facing is a software malfunction. I require someone with experience in Java to create documentation for the project. Skills and experience required for this job include: - Strong knowledge of Java programming language - Experience in Spring framework esp Spring Batch and REST API's - Experience with Vaadin is a plus. - Need about 2-3 hours for the next week This project is urgent and requires immediate support. Please only apply if you are available to start immediately.
I am making a webapp, but its not possible to control the Philips Hue bridge through a browser. I need a android app to control Philips Hue Bridge. This app will be a very simple app, just to control the sat,bri and hue of a bulb. Then I want to be able to control the app through a webapp (xmlhttprequest), without opening the app, just let the curl request pass stright through.
More details: I need a freelancer to develop a Kodular application that integrates Cyrus Recharge's mobile recharge services. I have the API and PIN, and I have tested them in Postman. The application should be fully functional, with plan selection and recharge options. When a user pays on the Kodular application, the recharge should be done immediately, within seconds. I need the application to be completed within 1 week and for a budget of up to 2500 INR. What specific features do you want the mobile recharge app to have? Recharge for multiple mobile operators What is your priority for this project? Quality of user interface How soon do you need your project completed? ASAP
I am looking for experienced developers to help me build a subscription model for an Android app. I am looking for an annual subscription model and do not require multiple subscription types at the same time. I am also anticipating moderate support for my subscribers. The developer that I look for should have experience with developing and deploying subscription models for Android applications. Furthermore, experience with customer support is a plus. The ultimate goal is to develop and deploy a secure subscription model for my Android app, and provide a reliable customer service experience.
I am looking for a skilled web developer to design and develop a scalable and maintainable web application. The purpose of the web application. Build responsive and user-friendly front-end interfaces using Vue, HTML, CSS, and JavaScript frameworks Extensive knowledge of backend development using Java Experience working with databases, particularly MySQL. Design and develop scalable and maintainable web applications using modern technologies. Build responsive and user-friendly front-end interfaces using HTML, CSS, and JavaScript frameworks (e.g., Vue.js, React, Angular). Implement robust and secure backend systems using Java, Spring Boot, and MySQL. Write clean, efficient, and reusable code following best practices and coding standards. Conduct thorough testing and debugging to ensure the s...
I am looking for a skilled developer to build a broadcast for server sockets without using any third-party libraries for my virtual machines (VMs). The project requires the following: Specific Requirements and Features: - The server sockets should have the ability to broadcast messages without relying on third-party libraries, and we have an affinity node this node is the only node in the system that can modify a document, here is the scenario I have built a NoSQL database system each VM(node)have many clients connected to it each client can do NoSQL CRUD operations, When this client create or delete we and do it successfully we need to broadcast the JSON file between all other VMS, and when a client want to do a modification operation on a document we need to send this operation to the a...
I am looking for a skilled developer to fix an issue with a JSP Java page. The functionality of the page is not working as expected and I need someone to address this problem. Specifically, the expected functionality of the page is form submission and processing. The form should be able to submit data and process it accordingly. I have the existing code for the page, so the developer will have access to the necessary resources to diagnose and fix the issue. Ideal skills and experience for this job include: - Strong knowledge of JSP and Java - Proficiency in form submission and processing - Experience in troubleshooting and debugging - Ability to work with existing code and make necessary modifications
I am looking for a freelancer who can develop a WhatsApp bot for my homestay business. The bot should have the following specific features: - Automated responses: The bot should be able to provide automated responses to customer inquiries and FAQs. I do not have a specific platform or tool in mind for the bot development, but I am open to suggestions from the freelancer. I have a deadline for when the WhatsApp bot should be fully operational, which is within a week. Skills and experience required for the job: - Experience in developing WhatsApp bots - Knowledge of different platforms and tools for bot development - Ability to create automated responses for customer inquiries
I am looking for a developer to create a WhatsApp bot for our hostel's sales and customer service. The bot should have the following features: - Booking and reservation capabilities: The bot should be able to handle booking requests and reservations from customers. We have multiple properties in different locations in bangalore - Customer Service: Every customer who check ins should be sent an automated message and all complaints to be processed here - review: all reviews requests to be sent - payment : payment collection to be automated We do not have a preferred programming language for the bot, so the developer can use any language they are comfortable with. The expected volume of customer interaction is low, with under 50 interactions per day. Ideal skills and experience ...
I am looking for someone who can help me with my Nginx HTTPS connection. Current Setup: - I am using Nginx as my server SSL Certificate: - I already have an SSL certificate Issues: - The connection is not secure Hi We have example where we consumingsoap api in springboot application we have connection front end>> Inbound Gateway>>backend>> outbound Gateway>> third party provider url . We have proxy selector class where we set to nginx server and port. from backend to gateway we have http port but we need https connection can you please help in this? we have opened both firewall https and http but we are unable to call by https as it giving issue unknown host reference:
Bid only if you can work in the mention project budget. I'm looking for an experienced and skilled Java developer to upgrade and make necessary modifications to our existing Java project. Somehow I lost the latest code. I have an access for FTP where the current project is running. according to that I want my old code to execute. Also I want to upgrade my code to latest java version as the current code is is Java 7 (Servlets). The project is already functional but requires updates to enhance its efficiency, security, and overall performance. Also I need to remove the dead codes and make the code lighter. Images are saving in the code, so need to upload on the server side. Project Scope: 1. **Upgrade to Latest Java Version**: Update the project to the latest stable version of Java, ...
APK app with geckoview engine / simple browser has 5 navigation button user interface (see attached picture). I need to add glue code and make these 5 buttons functional with geckoview browser sessions. Forward button – go to next page Home button – go to home page (ex. ) Hamburger button – show all geckoview sessions / similar to showing all open tabs Reload button – re-load current url / page Back button – go to previous page The apk / source code for this app will be provided, upon being selected for this project. Please let me know, if there are any questions.
Custom Software for Insurance Delivery Overview: I am looking for a skilled developer to build a custom software solution for delivering insurance to clients. The software will primarily focus on policy management and should be able to handle claims processing as well. Key Features: - Policy management: The software should allow for easy creation, tracking, and management of insurance policies. - Claims processing: The system should include functionality to handle claims efficiently and accurately. Programming Language: - The preferred programming language for this project is currently unspecified. User Expectations: - We anticipate that the software will be used by 100-500 users. Ideal Skills and Experience: - Experience in building custom software solutions for insurance or similar ...
i need to fix a certificate problem with a java code running in ubuntu 12.04 the error that i have: : : PKIX path building failed: : unable to find valid certification path to requested target Regards
deseo realizar un sofware que funcione como pasarela de pagos para que los venezolanos que estan en chile y otros paises puedan pagar los servicios medicos a sus familiares, de manera local en varios paises.
update my dating app on play store. activation of monthly subscription plans and bonuses on Google Play Console. Admob integration for free members. integration all API. Activation of payment methods, = Paypal, Google Pay. Change app name, logo, icons, and photo with my own phoros.
Hello, potential freelancers! I am in need of help with a programming project which requires the use of Java. The project requires the development of something new, so you will be starting from scratch. The timeline of completion is flexible, and therefore I am quite open to discussing details about this project. I'm hoping to find a freelancer that can help me with this project, and I look forward to hearing from you. Thank you for your time! The bassis of what I want to accomplish is to score , grade or rate a sports trading card on a scale of 1-10 with 10 being a perfect card. The grades will be based on perfect corners edges, centering, free of scratched , bends and chips or marks. I would like to do this with a png image from a scanner.
I am looking for a skilled freelancer to design a hospital and clinic management program for my personal use. The program should have a moderate level of detail in its design and should be completed within 1-2 days. Ideal Skills and Experience: - Experience in developing hospital or clinic management software - Knowledge of the healthcare industry and its specific requirements - Proficiency in programming languages such as Java or C++ - Ability to create user-friendly interfaces and navigation systems - Strong problem-solving and analytical skills - Attention to detail and ability to meet tight deadlines Please i need some one have experiance in insurance cycle in saudi arabia I dont need developing I need the design and data about the project only
I am looking for an experienced Android developer who can create a Bluetooth Beacons Batch Service. The desired outcome of the service is to collect data from Bluetooth devices within a range of 10-50 meters. The client has a specific Bluetooth beacon model in mind. Must be ready to connect and test app on anydesk since we can't provide you the Bluetooth beacons . Only remote working is a solution as of now . Skills and Experience Required: - Strong knowledge of Android development - Experience in working with Bluetooth technology - Familiarity with collecting data from Bluetooth devices - Ability to integrate specific Bluetooth beacon models into the service The project will be a fixed cost project with a budget range of INR 2500 to INR 4500.
DNS Api and Web, Server, and Hosting Integration with 3rd Parties We are seeking a skilled developer to assist with the integration of our DNS services with various 3rd party platforms. The ideal candidate will have experience working with Cloudflare as our current DNS provider. Key Requirements: - Full integration with 3rd party platforms: We require seamless integration with our DNS services and various 3rd party platforms for a smooth and efficient workflow. - Strong knowledge and experience in API development: The successful candidate should have a deep understanding of API development and integration techniques to ensure a seamless experience for our users. - Familiarity with DNS management: The ideal candidate will have a strong understanding of DNS management and the associate...
I am looking for a skilled developer to create a web crawler for 10 websites (with interface for automatic periodical scraping) in order to extract text data (product information and prices). The desired format for the extracted data is CSV. I require specific fields from the extracted data. Skills and experience needed for this project include: - Proficiency in web crawling and data extraction - Experience working with CSV files - Knowledge of HTML and web scraping techniques - Ability to identify and extract specific fields from web pages If you have the necessary skills and experience, please submit your proposal for consideration.
I am looking for an experienced developer to fix a functionality issue on an existing JSP page. The specific problem is with the form submission, as it is not working correctly. When the form submission fails, there is an error message displayed, which I can provide. Skills and experience needed: - Strong knowledge of JSP - Proficiency in form submission troubleshooting - Ability to identify and fix errors in JSP pages
I am looking for someone to help me send OMA-CP APN settings to a range of Android handsets. The purpose of this is to configure the device for a specific network. That specific network is already known and will need to be utilized throughout this process. The handsets are also running a range of different Android versions, so someone with knowledge of this ecosystem is essential. If you have experience working with these settings and the necessary skillset to complete this task, please apply for the job. Thank you!
I'm looking for an experienced developer to help me create an Android mobile app. The purpose of the app is to act as a job-hiring platform; for example, Apna Job, Job Hai, and JobWala. While I don't have a clear vision of the specific features or functionalities I'd want on the app, I have some general ideas that I'm sure the developer can work with. The design should be moderately customized, with some level of customization involved. If you think you have the necessary skills and experience to get the job done, please contact me and provide me with some evidence of your work. I'm looking forward to working with you.
I am looking for a skilled developer to create a Bhojpuri Music and News app for Android. The app should have a Push Notification feature for timely updates. Key Requirements: - Platform: Android - Language: Either Java or Kotlin - Integration: The News section should be integrated with a News API, while the Songs section should be integrated with YouTube. - Advertising: After the app is built, it is required to integrate Facebook and Google AdMob for monetization purposes. Timeline: The project should be completed in less than a month. Ideal Skills and Experience: - Proficiency in Android app development using Java or Kotlin. - Experience in integrating external APIs for news and media content. - Familiarity with YouTube integration. - Knowledge of integrating Facebook and Google AdMo...
I am looking for an experienced developer to fix a functionality issue on an existing JSP page. The specific problem is with the form submission, as it is not working correctly. When the form submission fails, there is an error message displayed, which I can provide. Skills and experience needed: - Strong knowledge of JSP - Proficiency in form submission troubleshooting - Ability to identify and fix errors in JSP pages
I am available to assist with code correction, code development, and code conversion between different programming languages. The estimated turnaround time for each task is 10 minutes. 1. Python 2. JavaScript 3. Java 4. C++ 5. C# 6. Ruby 7. PHP 8. Swift 9. Kotlin 10. Go 11. Rust 12. TypeScript 13. MATLAB 14. R 15. Perl 16. Objective-C 17. Scala 18. Groovy 19. Lua 20. Shell Scripting (e.g., Bash) 21. Visual Basic 22. Dart 23. HTML/CSS (markup and styling languages) 24. SQL (database query language) 25. Assembly Language 26. MATLAB 27. Perl 28. Lisp 29. Prolog 30. Haskell 31. Fortran 32. Cobol 33. Ada 34. PowerShell 35. Julia 36. F# Please provide the specific code or task you need assistance with, and I'll be glad to help you.
Hello, we have an Android WebView application developed in Java and are seeking assistance with two distinct tasks: ### Task 1 of 2: Excel Sheet Opening ### Currently, our app successfully downloads and opens an Excel sheet when using our test page. However, the application crashes when attempting the same on our customer's actual site. We suspect the issue arises due to the site utilizing blob URLs rather than pure data:// links. Our goal for this task is: - Ensure smooth downloading and opening of the Excel sheet from the customer's page. - Address issues with the Android download manager not downloading data from blob URLs. For this task, we will provide: - The existing Java code. - Demo login credentials. - Two video demonstrations: one showcasing the successful open...
I am looking for a skilled test automation developer/tester with experience in Java, using the TestNG testing framework. The main objective of this project is to achieve a moderate level of code coverage, ranging from 50% to 80%. Skills and Experience: - Strong proficiency in Java programming language - Extensive experience with TestNG testing framework - Knowledge of BDD (Behavior-Driven Development) and Cucumber framework is preferred - Familiarity with test automation tools and techniques - Ability to write efficient and maintainable test scripts - Understanding of software testing principles and best practices - Experience in analyzing test results and identifying defects Project Scope: - Develop and implement test automation scripts using Java and TestNG - Collaborate with the deve...
Title: Advanced Java Programming Tutor needed for Online Sessions I am seeking a knowledgeable and experienced Java programming tutor who can assist with advanced level concepts. Topics and Areas of Focus: - Data Structures: I require guidance in implementing and manipulating various data structures in Java. - Object-Oriented Programming: I need assistance in mastering the principles and best practices of OOP using Java. - Algorithms: I am looking for a tutor who can help me understand and implement complex algorithms efficiently. Preferred Mode of Communication: - Online/Video Call: I prefer to have tutoring sessions conducted remotely, through a reliable online platform or video call. Ideal Skills and Experience: - Strong proficiency in Java programming, with a deep understanding o...
We are seeking a skilled freelance developer to create a ready-to-use installation package (deb package) of PostgreSQL version 13 for Debian Buster on an ARMv7 (armhf) platform. This platform specifically matches the processor used in the Raspberry Pi 3, making it accessible and compatible for Raspberry Pi 3 users. Scope of Work: The selected freelancer will be responsible for the following tasks: Compiling PostgreSQL version 13 for the ARMv7 (armhf) architecture. Creating a Debian Buster compatible deb package for easy installation. Ensuring all necessary dependencies are included within the package. Thoroughly testing the package to confirm proper functionality. Providing documentation for installation and usage. Payment: We are offering a competitive payment of €200-€250 fo...
I'm looking for an experienced app developer to create an e-commerce app for me. The platform should be Android, but I'm open to any design and features that the developer might suggest. I want the app to be user friendly, with a smooth and intuitive interface so that the users can enjoy a seamless experience while using the app. The main functionality should be centered on e-commerce, but I am open to further suggestions for improving the features within the app. The developer should have a good understanding of the Android platform and be able to effectively complete the project within a timely manner.
JavaFx Programming Expert Programmer wanted
Title: Advanced Java Programming Tutor needed for Online Sessions I am seeking a knowledgeable and experienced Java programming tutor who can assist with advanced level concepts. Topics and Areas of Focus: - Data Structures: I require guidance in implementing and manipulating various data structures in Java. - Object-Oriented Programming: I need assistance in mastering the principles and best practices of OOP using Java. - Algorithms: I am looking for a tutor who can help me understand and implement complex algorithms efficiently. Preferred Mode of Communication: - Online/Video Call: I prefer to have tutoring sessions conducted remotely, through a reliable online platform or video call. Ideal Skills and Experience: - Strong proficiency in Java programming, with a deep understanding o...
Hey guys I want to make question paper genrating app. I should be able to add questions in it. App sholuld be work like this app:
Project Description: Create a WhatsApp chat bot for my hostel Platform: WhatsApp Key Functions: - Answer frequently asked questions and act like a customer feedback (FAQs) - Provide information about room availability and booking - Offer travel tips and recommendations Language Support: No Ideal Skills and Experience: - Experience in developing chat bots for WhatsApp - Proficiency in natural language processing (NLP) and machine learning - Knowledge of customer service and hospitality industry - Ability to integrate the chat bot with the hostel's existing systems
Long term support - Technical Support - Expected workload per week: 10-20 hours - Specific technical skills are needed I am looking for a freelancer who can provide long term technical support for my project. The ideal candidate will have specific technical skills and be available for 10-20 hours of work per week. The main responsibilities will include troubleshooting technical issues, providing solutions, and ensuring smooth operation of the project. Knowledge in java programming , spring framework, debugging, react js, typescript , angular js Strong problem-solving skills and attention to detail are also important. If you have the necessary technical skills and are able to commit to the workload, please apply with your relevant experience.
Long term support - Technical Support - Expected workload per week: 10-20 hours - Specific technical skills are needed I am looking for a freelancer who can provide long term technical support for my project. The ideal candidate will have specific technical skills and be available for 10-20 hours of work per week. The main responsibilities will include troubleshooting technical issues, providing solutions, and ensuring smooth operation of the project. Knowledge in java programming , spring framework, debugging, react js, typescript , angular js Strong problem-solving skills and attention to detail are also important. If you have the necessary technical skills and are able to commit to the workload, please apply with your relevant experience.
Long term support - Technical Support - Expected workload per week: 10-20 hours - Specific technical skills are needed I am looking for a freelancer who can provide long term technical support for my project. The ideal candidate will have specific technical skills and be available for 10-20 hours of work per week. The main responsibilities will include troubleshooting technical issues, providing solutions, and ensuring smooth operation of the project. Knowledge in java programming , spring framework, debugging, react js, typescript , angular js Strong problem-solving skills and attention to detail are also important. If you have the necessary technical skills and are able to commit to the workload, please apply with your relevant experience.
Basically, I have an existing Java program running on a Windows Server that starts a Selenium instance (via some middleware, i.e. not directly Selenium) and opens a website. There are several (about 20) browsers running at the same time. Unfortunately, there are sometimes system crashes, which seem to be caused by memory leaks, local api overloading and high CPU. This is currently resolved by regular restarts. I would like better logic for that and someone to optimize the performance of the whole system, so it runs at maximum speed at all times but crashes only occasionally instead of all the time. It might involve killing zombie processes via PID etc or maybe there is something obvious wrong in the existing code which cannot be trusted to be perfect. This may be more complex than i...
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I'm in search of an expert Android Architect to help solve a few issues and make my existing app even better. I need someone who can identify, troubleshoot, and ultimately help me to fix bugs in the app while having a good understanding of Android architecture. My idea is to make the app more efficient and user friendly but I'm open to suggestions if there are better ways to achieve the desired outcome. So if you think you have the right skills and expertise for this project, I'd like to hear from you!
I am looking for an experienced App developer to bring my idea to life. Specifically, I am looking for someone who can develop an App for Android with the main functionality of social networking and who has the technical knowledge to implement my specific design and feature requirements. I believe that creating an app that provides users with a social networking platform would serve as a great utility for my customers. I am open to any suggestions that would help improve the overall experience of the app. Developers with experience in Android development and a good sense of design and development are encouraged to reach out.
I am looking for a Hadoop developer with a strong background in data analysis. The scope of the project involves analyzing and interpreting data using Hadoop. The ideal candidate should have experience in Hadoop data analysis and be able to work on the project within a timeline of less than 1 month.
I am looking for a Hadoop developer with a strong background in data analysis. The scope of the project involves analyzing and interpreting data using Hadoop. The ideal candidate should have experience in Hadoop data analysis and be able to work on the project within a timeline of less than 1 month.