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!
Từ 272,990 nhận xét, các khách hàng đã đánh giá Java Developers 4.85 trên 5 sao.Thuê Java Developers
I am looking for a software developer who is proficient in Python to develop a software for me. Specifics: - The software needs to have specific functionalities that I will provide. - I have a deadline of within a week for the completion of this project. Ideal Skills and Experience: - Proficiency in Python programming language - Experience in developing software with specific functionalities - Ability to work quickly and meet tight deadlines
This is urgent project but very simple to you. My previous developer made the app but he doesn't have Zebra Bluetooth printer so he didn't check it. I am looking for a freelancer to help me test the Barcode scanner app and add a print function with Bluetooth for Android 13. You have to only test the app and add print function. Specific Features to be Tested: - Barcode scanning - Print function with Bluetooth Ideal Skills and Experience: - Experience in testing Android applications - Familiarity with barcode scanning and Bluetooth technology - Attention to detail and ability to accurately identify and report any bugs or issues encountered during testing You should have Zebra Bluetooth printer so at the beginning of your proposal, answer my question. Do you have Zebra Bluetooth ...
I am looking for an experienced Android developer who has knowledge and experience in Bluetooth and BLE (Bluetooth Low Energy) connections. Specific features needed for the app: - Both Bluetooth and BLE connection capabilities are required. Design requirement: - I have custom requirements for the app design. Timeline: - The app needs to be completed within a week. Ideal skills and experience: - Strong understanding of Bluetooth and BLE technology - Proficiency in Android app development - Experience in designing and developing custom app interfaces - Ability to work within tight deadlines and deliver high-quality results.
I am looking for an advanced Mulesoft developer who can help me with bug fixes in my project. I need the project to be completed within 2 hours. Skills and Experience: - Advanced level of experience in Mulesoft development - Strong knowledge of bug fixing in Mulesoft projects - Ability to work quickly and efficiently to meet the tight deadline
I am looking to hire a freelancer to modify a Mifos x script for an Ubuntu server. The modifications required are for installation and setup, but I do not have any specific requirements for this, so a standard setup will suffice. The script does not need to be integrated with any other software or applications, as Mifos X will be working independently. i have written this but it still has some errors with Tomcat
I am looking for a skilled developer to implement PQXDH on my Android messaging app. Current Messaging App: - Other (Please specify) PQXDH Implementation Requirements: - Specific requirements are not fully defined, but I have some initial ideas and concepts Timeline: - Implementation should be completed within 1-3 months Ideal Skills and Experience: - Experience in Android app development - Strong understanding of encryption and security protocols - Knowledge of PQXDH implementation - Ability to work collaboratively and provide guidance during the development process
RSS feeds generator for any website site using manual category URL reference website here make this its only our budget only
Android Speech to text using VAD I am looking for a developer to create an Android app that can convert speech to text using Voice Activity Detection (VAD). The app should have the following requirements: Target Android Version: It doesn't matter, any version is fine. Language Support: The app should support multiple languages. VAD System: We are open to suggestions for the preferred Voice Activity Detection (VAD) system to be used. Ideal Skills and Experience: - Experience in Android app development. - Strong knowledge of speech recognition and Voice Activity Detection (VAD) systems. - Familiarity with different VAD systems such as WebRTC and Deep Speech. - Ability to implement language support for multiple languages. - Good communication skills and ability to work collaborativ...
Project Description: DSA expert needed for algorithm implementation in Java Requirements: - Expertise in implementing various data structures and algorithms, including arrays and linked lists, trees and graphs, sorting and searching - Strong understanding of these data structures and algorithms - Proficiency in Java programming language for algorithm implementation - Ability to both implement the algorithms and provide clear explanations for better understanding Ideal Skills and Experience: - Extensive knowledge and experience in data structures and algorithms - Strong programming skills in Java - Excellent problem-solving abilities - Familiarity with algorithm analysis and optimization techniques - Good communication and collaboration skills to explain algorithms effectively Note: Plea...
My name is Udaybhaskar, and I have an exciting project in mind that would require an experienced Android App developer to bring it to life. The project is a business/professional application that would require some general ideas and features for it to reach its desired outcome. Although I don’t have a detailed list of features or functionalities, I have a clearly defined vision for the project and know exactly what I want it to be capable of. With the help of an experienced Android App developer, I am confident that this project could come to fruition in no time. If you think you would be a great fit for this project and could help me bring my vision to life, I would be more than happy to consider your proposal. Thanks in advance!
Recommended Skills: ● 5+ years building large-scale streaming data platforms on cloud. ● Expert in technologies like Kafka, Flink, Spark Streaming. ● Proficiency in SQL, Python(or Java). Experience with Scala is a plus. ● Expertise leveraging monitoring tools like New Relic, SolarWinds, Prometheus, Grafana, ● Strong hands-on experience managing AWS big data services. Responsibilities: ● Design and implement robust data pipelines to efficiently collect, transform, and integrate logs and metrics from different sources within our content ingestion workflow. ● Work in synergy with our talented ML Engineers to empower the development of advanced anomaly detection models and root cause analysis algorithms. ● Collaborate with Cloud Architects to optimize AWS infrastructure for seamless d...
we need of a skilled developer who can convert Figma UI design into a responsive JS website within a timeframe of 2 weeks. we have specific requirements for the functionalities and features of the website that need to be implemented. The budget for this project is not specified. We have more then 4 project to do Project 1. 20 screens Project 2. 55 screens Project 3. 180 screens Project 4. 100 screens read carefully and please offer you budget.
Project Description: Uploading Utilities Apps Using Google Play Console I am looking for someone who can assist me in uploading utilities apps on Google Play Console. I have all the necessary files and permissions ready for upload. Skills and Experience Required: - Experience in uploading apps on Google Play Console - Knowledge of the app submission process and guidelines - Familiarity with the utilities app category - Understanding of app metadata and requirements for app listing - Ability to troubleshoot any potential issues during the upload process
Project is almost made. It is tic tac toe game added with a bidding feature. I want to add a bidding function, where specific points will be given to the player in the starting. In order to put a x or o the person needs to bid some points, if his bid is more than the other player then he can put a x or zero on the board. Once all the points are over the game ends.
Hi I will share the details with the shortlisted candidates. Thanks
I am looking for a skilled automation tester to test a web application using the Selenium framework. The project has a deadline of more than 4 weeks. Requirements: - Proficiency in web application testing - Strong experience with Selenium framework - Familiarity with test automation best practices - Attention to detail and ability to identify and report bugs accurately - Good communication skills to collaborate with the development team Responsibilities: - Design and execute test cases for the web application - Identify and report bugs and issues - Collaborate with the development team to resolve issues - Provide regular updates on the testing progress If you have the required skills and experience, please submit your proposal along with your relevant work samples.
Tengo un sitio web pero quiero algo nuevo, tengo páginas de referencias las cuales pueden utilizar como para guiarse respecto a lo que necesito, el sitio web deberá contar con conexión a base de datos remota, dónde trabajará con registro de usuario con activación vía email, consultas varias y mostrar dicha información de la consulta en el sitio a si mismo posibilidad de un panel de usuario con pop up de login. Por otro lado necesito a alguien que trabaje con Java, para desarrollado mods y ext, de algo conocido como l2j.
I am looking for a software developer to create a user-friendly interface for my wedding flower software. The software needs to be developed in Java, Python or C++. Specific features needed in the software include data analytics and integration with third-party APIs. The timeline for the completion of this project is 1-2 weeks. Ideal skills and experience for this job include proficiency in Java, Python or C++, experience in developing user-friendly interfaces, and knowledge of data analytics and integration with third-party APIs.
I am looking for a Java developer with experience in MicroManager 2.0 to join my team and work on a project. The ideal candidate should be able to perform the following tasks: - Programming and debugging in Java - Integration of MicroManager 2.0 with existing hardware - User interface development for the project Requirements: - Experience with MicroManager 2.0 is a must - Proficiency in Java programming language - Strong debugging skills - Knowledge of hardware integration - Familiarity with user interface development Timeline: - The project needs to be completed within a week.
I am looking for a skilled C++ programming coder to work on a medium-sized project. The project involves creating multiple functions and classes for the development of a software application. Requirements: - Proficiency in C++ programming language - Experience in developing software applications - Strong understanding of functions and classes in C++ - Ability to work within a tight deadline (within a week) If you have the required skills and can deliver high-quality work within the specified timeframe, please apply for this project.
I am looking for a freelancer to help me with testing the print barcode functionality on an Android 13 device. The project involves testing UPC barcodes and ensuring compatibility with the device. The expected outcome of the testing is to identify any bugs that need to be corrected and to ensure compatibility with the Android 13 device. Ideal Skills and Experience: - Experience in barcode testing for Android devices - Familiarity with UPC barcodes - Knowledge of Android 13 devices - Attention to detail and ability to identify bugs - Strong problem-solving skills If you have any suggestions regarding specific Android devices for testing, I am open to your recommendations. This project is crucial in ensuring a seamless barcode scanning experience for our users, so attention to detail and ...
I am looking for an experienced Android programmer to help me with some modifications to my app. The specific modifications I need include to solve two problems one of which is logging me out of the account very often in some higher software version like 10,11,12,13 second to stop automatic synchronization of app data. Timeline: I am flexible with the deadline for the modifications, so there is no specific time constraint. Unchanged features: Although I want to make some modifications, there are certain features that I want to keep unchanged.
1. App Should open within 1 minute after power ON the device 2. Play the videos from SYNC Folder in sequence ( one after another) 3. Videos should be played in full screen mode 4. SYNC Folder stored in local storage 5. Once in every 30 mins SYNC folder content should be synchronized with google drive folder
I am looking for a developer to create an integration test suite for my AWS lambda function written in Java. The existing code performs a variety of different tasks and interacts with a number of other AWS services such as databases and APIs. I am looking for someone to build a test suite and ensure the code performs as expected in all situations. The ideal candidate should have experience in creating test suites for AWS Lambda functions and should be able to implement efficient testing strategies.
I am looking for an experienced developer to create integration tests for an AWS Lambda function written in Java. The test cases must be created from scratch according to detailed requirements and guidelines that I will provide. The successful applicant will have extensive knowledge of AWS Lambda and other relevant services such as API Gateway and CloudWatch. The applicant should also have an eye for detail to ensure that all tests are comprehensive and accurate. The successful applicant will need to deliver the tests within a stipulated timeframe without compromising on quality. I am looking for an experienced professional to work with me on this project and perform to a high standard.
Ideal candidate knows Twilio Flex, Segment, Workspace and other Twilio Customer Bucket programs. In general we are hiring for: Languages: Python, Java, C++, Node.js Frameworks: Flask, Django, Spring Boot Skills: RESTful API development, microservices, server-side rendering Frontend Development: Languages: HTML, CSS, JavaScript Frameworks: React, Angular, Vue.js Skills: Responsive design, WebRTC for real-time communication, UI/UX Machine Learning: Languages: Python Frameworks: TensorFlow, PyTorch Skills: NLP for conversation, neural networks for avatars, object detection Graphics Programming: Languages: GLSL, C++ Frameworks: Vulkan, OpenGL Skills: 3D graphics rendering, shaders, Nvidia CUDA for GPU acceleration Cloud Computing: Platforms: AWS, Google Cloud, Azure Skills: Serverless ar...
I am looking for a freelancer who can provide support for my Groovy Grails implementation. Specifically, I need help with troubleshooting and bug fixing. Skills and Experience: - Proficiency in Groovy Grails development - Strong problem-solving and debugging skills - Experience in identifying and resolving software bugs Additional Information: - No existing documentation is available for the project, so the freelancer should be able to navigate and understand the codebase independently. - The troubleshooting and bug fixing tasks need to be completed within a week's time.
Important: Please set a realistic bid so please read carefully: I want to create an Android app that starts a browser in full screen (kiosk) mode and has a screensaver that turns off the screen but goes back on when any touch on the screen occours.
I am looking for an experienced developer to assist me in completing an important project. Specifically, I need someone to Docker a Java project and create a broadcast between the servers. The purpose of this broadcast is for real-time data synchronization. The complexity of the Java project can be described as simple. I do have some requirements for the Docker configuration, but I am open for the developer to suggest their ideas. This project needs to be completed quickly and accurately, so only those with previous experience should apply.
Title: Code Error Debugging - Immediate Deadline I am seeking a skilled programmer to assist me in error debugging for a Python code within a tight deadline of 24 hours. The code is written in Python and requires immediate attention to resolve any errors. Specific Requirements: - Error debugging: Identify and fix any coding errors and issues within the code. - Code structure and readability: Review and improve the overall structure and readability of the code. Ideal Skills and Experience: - Strong proficiency in Python programming language. - Extensive experience in error debugging and troubleshooting. - Solid understanding of code structure and best practices for readability. - Ability to work efficiently and meet tight deadlines. If you possess the required skills and expertise, I wo...
Project Description: Adrino to mobile I am looking for a developer who can create a mobile app for me that performs data logging. The app should be developed specifically for the Android platform. The desired user interface for the app should be simple and user-friendly. Ideal skills and experience for this project include: - Proficiency in Android app development - Experience with data logging functionality - Strong understanding of user interface design principles - Ability to create a simple and user-friendly app If you have the skills and experience necessary for this project, please submit your proposal.
I am looking for a skilled programmer who can assist me with a project involving the modification of a specific system call in the xv6 operating system. Specifically, I need to modify the creation time in the kernel. In addition to this modification, I also need to gather statistics on memory usage from the system. The ideal candidate for this project would have experience with xv6 and a strong understanding of system calls and kernel programming. The expected turnaround time for this project is more than 5 days.
I am looking for a DSA expert who is proficient in implementing data structures and algorithms on the fly. The ideal candidate should have experience in working with the following specific topics: - Arrays and Strings - Stacks and Queues - Linked Lists and Trees - Searching, Sorting - Graphs and Dynamic Programming The project requires the freelancer to use Java as the programming language. The deadline for this project is flexible, with a timeframe of 4 weeks. Skills and Experience: - Strong knowledge of data structures and algorithms - Proficiency in Java programming language - Copy-paste code from hacerrank and leetcode is not acceptable.
I am looking for a skilled mobile developer to create a home automation application with MQTT and AWS server integrations. The primary purpose of the app will be remote control, and it should be designed for both iOS and Android operating systems. The home automation device I’m using is smart bulbs, which the application should be able to monitor and control. I would also like the app to be able to schedule operations, as well as monitor energy usage. If you think the challenge is something you’d be interested in, please reach out and let’s discuss further details.
I am in need of a skilled Android developer to create a sip dialer application for me. The application should have the following features: - Call recording - Call transfer - Video calling (optional, but preferred) I am unsure if I require any form of encryption for the calls, so the developer should have experience in implementing secure communication protocols. While I do not have a specific design in mind, I would prefer a user-friendly interface for the dialer. The developer should have experience in creating intuitive and visually appealing user interfaces. Overall, I am looking for a reliable and experienced Android developer who can create a high-quality sip dialer application with the aforementioned features and a user-friendly interface.
Hello, I am looking for an experienced Android app developer to create an app for my business. I have a clear vision for the app, and need the project completed in less than one month. The app will include features and functionalities to provide productivity and easy coordination across business stakeholders. The person I’m looking for should possess extensive technical knowledge, be creative and have a deep understanding of current trends and technologies. I would also prefer someone who can work within a tight time frame and knows how to optimize resources for maximum results. I am seeking an enthusiastic and experienced programmer with solid attention to detail who is familiar with the Android development process. This project requires strong problem-solving, design, coding, a...
I am looking for someone with experience to help me transform some Excel data into a specific ETL format. This project is urgent and must be completed within 24 hours. Therefore, I am seeking someone with experience in this type of work who can see the job through quickly and efficiently. The ideal candidate should have previous work experience in transforming large data sets into a specific format, as well as the ability to work under pressure of tight deadlines. If you think you are the right person for the job, please submit your past work samples and a detailed project proposal when applying.
I am looking for a Java developer to implement specific functionality in Java within a tight timeframe. The project requires expertise in data processing, GUI development, and networking. Specific requirements will be provided, and the implementation needs to be completed within 1-2 days. Skills and experience required for this project include: - Proficiency in Java programming language - Experience with data processing and manipulation - Strong knowledge of GUI development using Java - Familiarity with networking protocols and concepts If you have the necessary skills and can meet the urgent timeline, please submit your proposal.
I am looking for an experienced Android app developer who can create an app that can detect plant diseases. Backend Development: - The app will require backend development to handle the data and processing required for detecting plant diseases. Functionality: - The main functionality of the app will be to analyze images of plants and identify any diseases present. - Users should be able to take a photo of a plant and receive an analysis of any diseases detected. - The app should provide information on the identified disease and possible treatments. Timeline: - I would like the app to be completed within 3 months. Skills and Experience: - Strong knowledge and experience in Android app development. - Experience with backend development for handling data and processing. - Familiarity wit...
I am looking for a developer to help me with a project that involves developing a synchronous interprocess communication using the fork() and pipe functions in the C programming language. Specific requirements for the pipe implementation are not necessary, but I have a general idea of how I want it to work. I would like the project to be completed within 7 days, so a quick turnaround time is important. Ideal skills and experience for this job include: - Strong proficiency in C programming language - Knowledge of interprocess communication and the fork() and pipe functions - Ability to work efficiently and meet tight deadlines
I have been building a mobile application using react-native framework with the help of expo. After spending a really long time building and testing it only on an IOS emulator, I was surprised that it does not run on android devices. It kept saying “Application keeps stopping”. If you have any idea or a solution for this please contact us.
Hi All, we looking for a developer to create a Mobile recharge, ticket booking, and Vehicle rental service full stack web and app. The platforms I want the web and apps to be developed for are iOS and Android. For multiple country (Sri Lanka, India, Australia, Samoa, Tonga, Cook Island, Fiji Island and plus more countries) Mobile recharge:- () Ticket booking:- BUS Ticket TRAIN Ticket FLIGHT Ticket Vehicle rental:- BUS VAN CAR MOTERBIKE THREE-WHEELER Features: - I have a rough idea of the specific features I want for the web and apps, but I am open to suggestions and further development of the ideas. Timeline: - The timeline for this project is 1-5 months. Ideal Skills and Experience: - Experience in developing full stack web and mobile applications for both iOS and Android platfo...
I am looking for a developer to help me with a project that involves developing a synchronous interprocess communication using the fork() and pipe functions in the C programming language. Specific requirements for the pipe implementation are not necessary, but I have a general idea of how I want it to work. I would like the project to be completed within 7 days, so a quick turnaround time is important. Ideal skills and experience for this job include: - Strong proficiency in C programming language - Knowledge of interprocess communication and the fork() and pipe functions - Ability to work efficiently and meet tight deadlines
Java Google App Engine Creation Application Project Overview: - I am looking for a skilled developer to create a Java-based application using Google App Engine. - The application should have specific functionalities, including user authentication and authorization, database integration, and API integration. Skills and Experience Required: - Strong proficiency in Java programming language. - Experience with Google App Engine and its various services. - Familiarity with user authentication and authorization systems. - Knowledge of database integration and working with APIs. - Ability to deliver high-quality code and meet project deadlines. Timeframe: - The desired timeframe for project completion will be determined based on further discussions and project requirements.
I need an Android and IOs APK to receive messages. The most clear and fast possible. must have: - screenshot block, so the user cant take an screenshot of the apk - Way to admin users. As admin, i should be able to create, block or expell users, and i decide which messages every user receives. Example: User1 receive messages from fonts A B C, User2 receives from B and D - Every user can log once at time, not multi logging, if he logs in other device he should be logged out from the first one. - I will send messages via API (the same way you could send messages to a telegram bot), there would be several channels like channel A B C D.... and i can send a message to group A then the users able to read group A will read the messages. - The apk will make a notification sound when they receive...
Software Marketing - Java Android App Budget : $100 Project Details: Acceptance Criteria: - Turn the Slot game source code into the H5 website - Create a new Android app based on the source code template we provide. - Make necessary modifications to the app source code to make sure the app integrates with our backend system. - Make necessary modifications to the event tracking codes and it should integrate with Adjust. - Deep linking should be working as expected as well. - Submit and be **RESPONSIBLE** to make sure the app is approved and published in the PlayStore. - Slot game source code, Android App template, and Android Developer Account will be provided
Mobile App Developer for Android Data Collection App Skills and Experience: - Proficient in Android app development - Experience with data collection app development - Strong knowledge of Java and/or Kotlin programming languages Project Description: I am looking for a skilled mobile app developer who specializes in Android app development to create a data collection app. The app will be used for collecting and storing data on Android devices. Primary Function: The main purpose of the app will be data collection. Users will be able to input and store various types of data using the app. Platform: The app will be developed specifically for Android devices. Preferred Programming Language: There is no specific preference for the programming language, but strong knowledge of Java and/or Ko...
I am looking for a software developer to create a software similar to I would like to include all the features from the website. Programming Language/Platform: - I am open to suggestions and do not have a specific preference. However, it must be open-source. Timeline: - I would like the project to be completed within 3-6 weeks. Ideal Skills and Experience: - Experience in software development and creating web applications. - Proficiency in programming languages such as Java, Python, or Ruby. - Familiarity with open-source platforms and frameworks. - Strong problem-solving and debugging skills. - Attention to detail and ability to deliver high-quality work within the given timeline.
I am looking for a skilled Java developer who can decode and analyze the current java jar file of my project. The purpose of the jar file is user interface development, so understanding its coding is crucial for maintaining and enhancing the project. Specifically, I have specific features and functions in mind that I would like to maintain and possibly enhance. Therefore, I need someone with experience in user interface development who can work with the existing coding to make the necessary updates and improvements. Coding size about 830KB, considered as small-medium project As for the deadlines, they are flexible. I am looking for someone who can dedicate their time and expertise to this project and deliver high-quality results within a reasonable timeframe. Skills and experience req...
Title: Traffic Bot Development using Python Project Description: I am looking for a skilled Python developer to create a traffic bot that can generate organic traffic across multiple platforms. The main purpose of this bot is to increase the visibility of my website. Ideal Skills and Experience: - Proficiency in Python programming - Experience in developing traffic bots or similar automation tools - Knowledge of web scraping techniques and API integration - Familiarity with various platforms and websites where traffic generation is desired - Understanding of SEO principles and strategies - Ability to analyze and interpret data to optimize traffic generation efforts Key Requirements: 1. Organic Traffic Generation: - Develop a bot capable of generating organic traffic to increase the v...