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!
De 269,817 opiniones, los clientes califican nuestro Java Developers 4.86 de un total de 5 estrellas.Contratar a Java Developers
¡Hola! Estoy buscando un programador con experiencia en el desarrollo de robots de trading para IQ Option. Mi objetivo es crear un robot que pueda realizar entradas automatizadas, incluir estrategias de martingale, monitorear en tiempo real el porcentaje de lucro de cada operación y calcular la tasa de acertividad. Además, me gustaría que el robot tenga la capacidad de establecer niveles de stop loss y take profit, y que pueda utilizar indicadores para identificar las mejores oportunidades de entrada y evitar aquellas en las que no se deba operar. Requisitos del proyecto: Experiencia en la creación de robots de trading para IQ Option. Conocimientos en los lenguajes de programación Python, Java o C++. Capacidad para implementar una estrategia de...
Quiero hacer un servidor de minecraft con unos amigos. Queremos ponerle algunos mods y plugins que hemos mirado ya El servidor lo estamos alojando en SparkedHost por lo que necesitamos a alguien que se maneje con su sistema de servidores Los mods serían con Forge, entre ellos el SecurityCraft, Sophisticated Storage/Backpacks, Twilight Forest, Deeper and Darker y mas.
En la empresa tenemos una aplicación desarrollada en los lenguajes: - NodeJS - AngularJS - React - Java Con un motor de base de datos MySQL. Y usamos herramientas como: - Gitlab - Gitlab CI/CD - Docker - AWS En estos momentos, necesitamos a alguien que nos pueda dar soporte en los problemas que pueda darnos en el día a día y, además, poco a poco ir incorporándole algunos cambios. De la misma forma que, tenemos en mente nuevas aplicaciones que queremos desarrollar.
debe crear un formulario , donde el cliente pueda consultar los precios de los productos al consultarlos con un lector de codigo de barras
Necesito la creacion de algunos plugins, y la manipulacion de otros existentes para un servidor de minecraft, en desarrollo acerca de ciudades
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.
Buscamos un desarrollador o programador que entienda de plugins de generación de mundos como multiverse o parecidos para importar mapas para un servidor de pixelmon em la versión 1.16.5.
Necesito desarrollar un software, para que una persona realice visitas a domicilios y pueda registrar información de esa visita, además que puede georeferenciarse al momento de hacer la visita para garantizar que se concurrió a la dirección indicada.
I want to make an extremely basic android app (android studio-java)
Having a spring boot project with 2 Rest Api Endpoints. Need to write two test cases with @InjectMockito and @Mock
I am looking for Java programmers who can work on a small project with basic functionalities. The project needs to be completed in less than a week and my budget is less than $500. Ideal skills and experience for the job include: - Proficiency in Java programming language - Ability to work with basic functionalities - Experience in delivering projects within tight deadlines - Good communication skills to ensure smooth collaboration throughout the project.
The program should accurately track the number of calories consumed and burned through exercise and other activities. The program should be user-friendly and easy to navigate, with clear instructions and intuitive controls. Users should be able to set and adjust their own goals for calorie intake and expenditure and track their progress toward those goals. The system should provide detailed reports and analysis of users' calorie intake, expenditure, and progress toward their goals, as well as insights and recommendations for their improvement. The system should keep users motivated by providing positive feedback The system should provide users with meal planning and recipe suggestions based on their calorie goals, dietary restrictions, and food preferences. The system should allow us...
I have an exported file from tyrano builder. I need it made into an android ready bundle to deploy the app. I can’t figure out android studios. Will pay more if u can make a video showing me how to do it for idiots.
I am looking for a React Native developer to implement a barcode feature in my existing app. The purpose of this implementation is for product scanning. I would like to support QR codes and bar codes Ideal skills and experience: - Strong proficiency in React Native development - Experience implementing barcode features in mobile applications - Knowledge of QR code and bar code scanning and integration - Ability to work efficiently and effectively in a collaborative team environment. - Display the product name in the form field and image on the screen
I am looking to bring on an experienced Java developer who specializes in the Spring Framework to provide ongoing support. This would involve addressing issues, developing new features, and enhancing existing code that is already part of our product. The position requires at least 2+ years of experience in the Java development language and strong knowledge of the Spring Framework. The duration of this project is estimated to be less than 3 months. Therefore, a fast learner, strong problem solver and experienced worker should apply for this position.
I am looking for a Python programmer who has experience with Selenium webdriver and Chrome to automate form filling and submission on a specific website. The ideal candidate should have the following skills and experience: i already have two programs ready but having some errors in that which needs to be fixed - Proficient in Python programming language - Familiar with Selenium webdriver and Chrome - Experience in automating form filling and submission - Ability to work with daily automation requirements The project requires automation of form filling and submission on a daily basis. The website and specific tasks will be provided to the selected candidate.
Por favor, regístrate o inicia sesión para ver los detalles.
seeking a skilled and experienced Smart Contract Developer to create a similar smart contract on the Binance Smart Chain (BSC). This is a simple project that should not take more than a couple of hours to complete. The ideal candidate should be available immediately to start working on the project and will be provided with full details and specifications. Responsibilities: Develop a smart contract on the BSC based on the provided example contract and full details Ensure the smart contract meets all functional requirements and security standards Implement necessary functions and features as outlined in the specifications Conduct rigorous testing to ensure the reliability and accuracy of the smart contract Requirements: Proficiency in smart contract development on the Binance Smart Chain ...
I'm looking for a Senior Backend Developer to help us with our project. We currently use Java Microservices in our backend, and we have an existing database. We are specifically looking for someone to help us with API development. Seeking a senior developer with 5+ years experience, and: • Experience designing web service contracts, including definition and refinement of API inputs and outputs • Ability to design, document, and implement proprietary protocols • Familiarity with issues that may occur during data synchronization issues in a multi-device messaging application session • Experience defining requirements for data persistence and storage, including database schema design • Experience leading and guiding a team in the delivery of a software project ...
I am gonna make the Minecraft game. The budget : $800 Payment method: weekly Note: not prepayment This is a very large project, and I'm trying to develop a part of it first. The budget for this is $800. The payment method is the weekly method. As I said in advance, there is no prepayment, and I'm going to test my skills by doing something very insignificant first. If you pass the test, I'll send you the detail doc and you can start working on the assignment. This is a very large project, so if you do your job well, you can continue to work with me in the future.
estou fazendo um trabalho da faculdade mas estou com muito pouco tempo, então preciso recorrer a isso, necessito de algumas coisas no projeto. E um projeto de pesquisa de hoteis, só preciso de ajuda em algumas coisas mais complexas que não tenho muita experiencia para concluir, na na parte de pesquisa existe 4 cidades cada uma possui 3 hoteis, quando o usuario seleciona o hotel e passa para o proximo painel, preciso alterar o painel para mostrar os quartos disponíveis, sabendo que cada hotel tem quartos diferentes, so preciso que passa os caracteres de um hotel para teste o resto eu faço, no painel de quartos cada quarto tem um botão em baixo que o usuário seleciona e passa para um painel que tem dois calendários, se um outro usuario ...
Use Visual Studio Code Must have GUI, can be in JavaFX, Swing, Spring, or Android.
Hello, I am looking to work with a Project Manager on a consulting basis specializing in Web and App Development who would co-ordinate with the client until closure. This would be a 12 week project.
I am in need of a highly talented Java 8 developer for a Backend/API Development project that will take more than 4 weeks to complete. The ideal candidate should possess the following skills and experience: Skills: - Expertise in Java 8 - Experience with building RESTful APIs - Knowledge of Spring Framework - Familiarity with MySQL or other relational databases - Understanding of software development life cycle (SDLC) Experience: - Proven experience in developing and maintaining enterprise-level applications - Ability to work independently and collaboratively in a team environment - Strong problem-solving skills and attention to detail - Excellent communication and interpersonal skills If you possess the required skills and experience, please apply for the project and provide samples of...
I am in need of a highly talented Java 8 developer for a Backend/API Development project that will take more than 4 weeks to complete. The ideal candidate should possess the following skills and experience: Skills: - Expertise in Java 8 - Experience with building RESTful APIs - Knowledge of Spring Framework - Familiarity with MySQL or other relational databases - Understanding of software development life cycle (SDLC) Experience: - Proven experience in developing and maintaining enterprise-level applications - Ability to work independently and collaboratively in a team environment - Strong problem-solving skills and attention to detail - Excellent communication and interpersonal skills If you possess the required skills and experience, please apply for the project and provide samples of...
I am looking for a freelancer who can help me obtain emails from Microsoft Exchange Online using Oath 2.0 & Java. I previously was logging in using basic authentication(email, password) but Microsoft decided to stop using that method. I would require that the msal4j library from Microsoft be used for authentication. Working code will be verified once we add our credentials and verify that we can access our emails. We do have more long-term work available for the right candidates in Java programming. REQUIRED skills and experience: - Experience with Java programming language - Familiarity with Microsoft Exchange Online API - Strong communication skills to ensure clear understanding of project requirements and updates.
I am searching for an Android app developer who has a Google Play developer account and is able to publish my application for the Polish market. Your account can be registered in any country. I will provide the .aab file and store description. In return, I am willing to pay a one-time fee of 70$ for the published application and 20$ each week for keeping the app on your account. If you have further questions, please don't hesitate to ask.
I have Android app in which already ads unit are added as string , now i want to call them from my GitHub files.
Repast Simphony Multi Agent Simulation Project Using JAVA I am looking for a freelancer who can help me develop a multi agent simulation project using Repast Simphony. The main goal of the simulation of dynamic model that can simulate plant's physical change in variety of environment like water and soil. I would like to use artificial agents in the simulation, with a focus on the root agents. Specific requirements and constraints for the project include: - The simulation should be developed using Java programming language - The Repast Simphony platform should be used for the simulation - The simulation should be able to handle a large number of agents - The simulation should be able to generate real-time data and analysis - The project should be completed within a specific timeframe...
New Enterprise Business Consulting for Expanding Market Share I am looking for a business consultant to help me with my new enterprise, with a specific focus on expanding market share. My enterprise requires the following services: - Business Consulting: I need expert guidance on how to grow my business and achieve my goals. - Marketing and Branding: I require help with branding and marketing strategies to increase my visibility and reach. - Web Development: I need a website that is not only visually appealing but also user-friendly and optimized for search engines. Ideal skills and experience for this job include: - Proven track record of successfully growing businesses and expanding market share. - Strong knowledge and experience in branding, marketing, and web development. - Excelle...
We GK Health Care manufacturer for Dialyzer Reprocessing Machine, Looking for Android Application for our Sales & Service Team.
I am looking for a skilled JAVA developer to update the backend functionality of my existing project. I have a clear understanding of the specific changes that need to be made and require someone who can work within a tight deadline of one week. The ideal candidate should have the following skills and experience: - Strong proficiency in JAVA and experience with backend development - Attention to detail and ability to debug code efficiently - Good communication skills to provide regular updates on progress If you have the necessary skills and can work within the given timeframe, please apply to this project.
I am looking for an experienced Android developer to create an entertainment application for the Playstore. I need the application to be designed with privacy and policy in mind. Here are the details of the project: Main Purpose: - The main purpose of the Android application is entertainment. Design: - I do not have a specific design in mind and need design suggestions. Features: - I want to include Admob in the application. Ideal Skills and Experience: - Experience in Android app development. - Knowledge of privacy and policy regulations. - Experience with Admob integration. - Creative design skills to provide suggestions for the application.
My project is to deploy a Java application using Spring Boot. Currently, the deployment environment is a cloud server, and I have the necessary access and credentials for that server. I am looking for an experienced freelance developer to help deploy this project. The ideal freelancer will have experience in deploying Java applications with Spring Boot in a cloud environment. They will be familiar with setting up the application framework and architecture, configuring the application servers and making sure that the application is secure and optimized to run smoothly. Additionally, they should be able to troubleshoot and address any errors or issues that may arise during the deployment process. I look forward to working with an experienced and knowledgeable freelancer for this project!
I need help with a java project when im running on my local machine
We are a basic programming school for children from 7 to 9 years old, the developed application will be used in the classroom. Description of the Application to be developed. a) Home screen, with an option to create/change a shopping list and another option to make the purchase. Each shopping list will have an identifier. Examples: "Weekly shopping," "Monthly shopping," "Barbecue with the gang,"... b) A menu must allow the maintenance of the sectors, also providing sector registration from an action in the top bar of the application. c) List creation screen: It must be possible to choose one of the registered sectors and include items to be purchased: description and quantity. d) Shopping screen: It must be possible to choose one of the registered sector...
HI, Start your proposal with WEBVIEW, else it looks spammy. So we have published a webview app on playstore built with Kotlin. The issue we are facing is that the website cookies are working fine on the apk that is generated on the android studio but it is not working on the app bundle that we publish on the playstore. We need urgent fix for this issue.
Looking for an experienced developer with knowledge in Android Studio and Java to create a fast delivery COVID application. The specific feature required is the provision of vaccine information. I am open to suggestions for the design and layout of the application. The completed project needs to be delivered within 3-7 days. Ideal skills for this job include proficiency in Android Studio and Java programming, experience in developing COVID applications, and the ability to meet tight deadlines.
I'm looking for someone to build an online examination system for users using Spring Boot, MVC, Hibernate and JSP. The difficulty level of questions in the system should be medium. I would prefer if the system used MySQL as its database, but I can change the database if necessary. Additionally, the system may require additional external software or platform integrations, but I'm not sure at this time. If you are interested and capable of completing the project with the requirements specified, I would love to receive your proposal!
, I want one Python project to be made where it uses Random forest approach to build an anomaly based intrusion detection system. it should read anomalies in user behaviour and send a notification if there are any anomalies. It should use NSL-KDD dataset for this it should give maximum efficiency in detection in frontend, we will instert the data 5:19 PM it read patterns in data and returns if there are any anomalies it should show the graph in the frontend chatgpt is not giving correct codes, so please try to develop the maximum on your own
I need someone helpping me fixing my code and download some libraries
My goal is to bring more efficiency to a software development project. To do this I am hoping to hire a software development consultant to help me with this project. The main programming language currently being used in this project is Java . The consultant will be asked to help us with multiple stages of the project, including planning, design, implementation, coding, testing and deployment. With the help of the software development consultant, we are confident that we can reach our goal of increased efficiency in the Minimum 10 years experience.
We have to create monthly bill and need to send on our customer on whatsapp..But we do manually and it takes lots of time..I want to make it automatic
I am looking for an Android developer to fix some issues with my app's PDF reports and permissions. Specifically, I am experiencing both PDF report generation problems and permission issues that are preventing access to certain features. I have not tried any troubleshooting steps yet, but I can provide access to the app for troubleshooting. The ideal candidate will have experience with Android app development and troubleshooting, as well as expertise in PDF generation and permission management. The budget for this project is $100.
The DIALER app should be user-friendly and efficient, with features such as call logs, contact lists, and the ability to make and receive calls with Sim1, Sim2 and via WhatsApp. During mobile number dialling, the number shall be verified with whatsapp availability and enables the whataspp dialer accordingly. Main features required: 1. Sim cards detection and enabling of dial pad with respective sims and whatsApp. 2. For dialling: Sim1, Sim2 and whatsApp 3. For call receiving: sim1 and sim2. Understanding whatsapp call receiving is available in whatsApp only. 4. Contact search bar with name or number or place. 5. About us and feedback page required. 6. Call features in Sim1 and sim2 are call hold, call merge upto 3numbers, mute and dial pad for ivs. 7. Able to select country code whole dial...
We are developing a quiz mobile application that allows players to play using real money. To enable seamless payment transactions and withdrawal of earned rewards, we require an expert payment integration consultant. The ideal candidate should have a technical background and experience in integrating payment gateways into mobile applications. They will be helping us in selecting the appropriate payment gateway(s), integrating them into the app, and ensuring a secure and user-friendly payment process. The budget for this project is INR 2000-5000 according to the service we receive from the expert. The consultant will be working collaboratively with our development team. Ongoing support and assistance in post-implementation testing and debugging are expected. Requirements: Technical bac...
I am in need of an Android app developer who can add some specific features to my existing app. The app needs In-App Purchases implemented within 1-2 weeks. Ideal Skills and Experience: - Experience with Android app development - Knowledge of implementing In-App Purchases - Familiarity with integrating new features into existing code - Ability to work within a tight deadline
The Sticker Printing Application is a desktop app that will be developed to print and store unique data as well as generating barcodes on predefined design printed stickers. The application will be out of two formats where each format has its own unique entries. This application will be integrated with HP printers to print the data and barcodes on stickers.