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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Hi we are using springboot we have soap based project jaxws we are using for connectiviry to third party peovider frontens--> inbound gateway> backend> outbound gatetway> thirdpaty provide soap service we have this flow we have connecrivty from backend to nginx gateway in http form we need to connect with https we have below is class for servver and port class NginxProxy extends ProxySelector constructor ---- set all nginx server and port to local vatiable NginxProxy() { proxies= proxy port= port public List<Proxy> select (URI uri) { Arrlist<Proxy> list = new ArrayList<> for(Sting proxy:proxies) { Proxy proxy = new Proxy(, new InetSocketAddress(proxy, 8080)) (proxy) } finally we are setting ProxySelector. setDefault(new NginxProxy) in method this ...
I am looking for a skilled freelancer who can create a YouTube bot for me. Here are the specific requirements for the project: Features: - The bot should be able to increase views and likes on YouTube videos. Target Number of Views: - I would like the bot to achieve between 1,000 and 10,000 views. Algorithm Detection Bypass: - It is important that the bot is able to bypass YouTube's algorithm detection. Ideal Skills and Experience: - Experience in creating YouTube bots - Knowledge of YouTube's algorithm and how to bypass detection - Familiarity with increasing views and likes on YouTube videos If you have the necessary skills and experience to complete this project, please submit your proposal.
Must be willing to login to my computer to work as well as on your on pc to qualify for this on-going role, please send me a private message regarding your answer to this question:
This project needs to be completed using Java and is an individual project. the packet scheduling algorithm – Generalized Processor Sharing (GPS). GPS cannot be directly applied in a real network for ordering packets for transmission because it assumes a fluid packet/traffic model. Real-world packets consist of bits/bytes, and they must be transmitted atomically, i.e., a packet must be transmitted as a single entity. Packet-by-packet GPS approximates the GPS scheduler closely using a virtual time-based implementation. Refer to the paper for details on GPS/PGPS: Abhay K. Parekh and Robert Gallager, ``A generalized processor sharing approach to flow control in integrated services networks: the single node case,'' IEEE/ACM Trans. on Networking, Vol. 1, No. 3, pages 344--357, J...
Looking for Mobile app developer on a fixed bid project. Scope of work will be 1. Take existing code make complete UI overhaul 2. Fix bugs, 3. Make Modifications to API integrations 4. Completely test apps- test apps thoroughly for error free code delivery 5. Provide support to acceptance testing activity 6. Excellent Native mobile app ( iOS/Swift and Andoid/Java ) are required 7. Must be available for discussions / call as required from 7.30 pm IST 1.00 am IST. Calls/ Discussion are usually 30 min to 1 hours. Must use GITHUB (code) and Google doc (all documentation, test scripts, results etc) Must Sign users NDA Fixed bid pricing is Rs.37,000/-
QA Developer Needed for Automated Testing Project - Timeframe: More than 2 weeks - Testing Type: Automated Testing - Budget: $150 We are seeking a skilled QA developer to assist with our automated testing project. The ideal candidate will have experience in automated testing and be able to work within a timeframe of more than 2 weeks. Responsibilities: - Conduct automated testing to identify and resolve any issues or bugs - Collaborate with the development team to ensure the software meets quality standards - Create and execute test cases and test scripts - Document and report any defects or errors found during testing Requirements: - Strong experience in automated testing, utilizing tools such as Selenium or similar - Proficiency in programming languages such as Java or Python - Excel...
Are you a detail-oriented Quality Assurance Analyst with a knack for ensuring software excellence? We're on the hunt for a talented individual to join our remote team as a Quality Assurance Analyst. Please see attached document to get a clear view of the job description and requirements
NFC Card and NFC Smartphone School Food Store Payment System We are looking for a freelancer to develop an NFC payment system for our school food store. The system will allow students to make payments using their NFC cards or smartphones. Key Requirements: - The system should be able to handle a user base of 100-150 students. - NFC reader(connected to device) will read, deduct, and add balance to NFC Card or NFC Phone - The payment system should be compatible with both Android and iOS platforms. (open to ideas on whether APP is required. Preferable not) - The system should have the ability to record and store transaction records. -*System Encryption and Security don't have to be advanced. (basic is fine) Ideal Skills and Experience: - Experience in developing NFC payment systems....
I would like to integrate OCPI with my OCPP 1.6J SteVe CPO platform. SteVe already has an API endpoint, which we use for remote start/stop
Are you concerned about the security of your Android device? Look no further! I am looking for a skilled Android developer to create a spyware detection app that will help users identify and remove existing spyware from their devices. Features: - The app should be able to scan APKs and detect any signs of spyware. - The app should have a user-friendly interface that is easy to navigate for beginners. If you have experience in Android development and are familiar with spyware detection techniques, this project is perfect for you. Join me in creating an app that will provide peace of mind to Android users everywhere.
I am looking for a freelancer who can generate an apk for CHINA android mobiles. The target audience for this apk is Chinese users. Specific Features: - I have specific features in mind that I would like to include in the apk. Compatibility: - The apk should be compatible with all versions of Android in CHINA Phones Ideal Skills and Experience: - Experience in developing and generating apks for CHINA android mobiles. - Familiarity with the preferences and requirements of Chinese users. - Ability to incorporate specific features into the apk. - Knowledge of Android compatibility across different versions.
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. This training will be of 5 days and 7hrs a day 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...
I am looking for a freelancer to develop a data extraction tool for me. Data Extraction: - The tool should be able to extract both text and images from a specific website that I will provide. - The extracted data should be in Excel format. Skills and Experience: - Experience in web scraping and data extraction. - Proficiency in programming languages such as Python, Java, or Ruby. - Familiarity with web scraping libraries and tools. - Knowledge of Excel and data manipulation. Additional Information: - The tool should be efficient and able to handle large amounts of data. - It should be able to extract data from multiple pages of the website. - The extracted data should be organized and accurately represented in the Excel file. If you have the skills and experience required for this proj...
Java Game Development: Proven experience in modifying and optimizing existing game code. Ability to troubleshoot and resolve any potential bugs. Familiarity with [specific game engine or platform, if any]. Graphic Design: Experience in designing game graphics, characters, backgrounds, and other related elements. Ability to understand and align with the game's theme and aesthetic. Proficiency in [specific design tools, e.g., "Adobe Photoshop", "Illustrator"]. Other Details: Please provide a portfolio or examples of your previous work in both Java game development and graphic design. Communication is key. Regular updates on progress and any challenges faced are expected. If you are passionate about g...
I'm looking for experienced developers to help develop an android based software solution for drones. The intended purpose of the software is to enable mapping and surveying capabilities, allowing the drone to be used for exploration, navigation and data collecting purposes. The software should have an autonomous flight capability. Real-time streaming of data is required, and the software must be able to be adapted to any drone model, rather than just one specific model. Having a strong understanding of aviation-related regulations and applicable laws would be beneficial for this project. If this project speaks to you, I would love to hear from you!
I am looking for a full stack developer who can help me build a B2B hotel booking engine for my new enterprise. The core function of the booking engine will include hotels search and booking engine, payment wallet for both B2B agents and hotels and admin panels for hotels (extranet) and for clients and CMS. Attached is core spec but full specs will be provided after initial quote received. Must send with initial cost:- 1- Demo access to backend sites you worked on 2- Front end site with agent access for similar sites you worked on Skills and Experience: - Proficiency in full stack development, including front-end and back-end technologies - Experience in building booking engines and integrating payment gateways - Knowledge of customer management systems and CRM software - Familiarity wi...
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. This training will be of 5 days and 7hrs a day 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...
We are looking for a lead Java Developer with expertise in Spring Boot. Must work 5:30pm to 2:30am IST
I am looking for a developer to create a proof of concept (POC) for a single sign-on (SSO) solution using Spring security (oauth2), keycloak, angular, and spring boot microservices. Desired Outcome: - The main goal of this POC is to demonstrate the integration of keycloak, angular, and spring boot microservices. Complexity Level: - The POC should have an intermediate level of complexity. Specific Requirements: - There are no specific requirements or features that need to be included in the POC. I am open to suggestions and recommendations. Ideal Skills and Experience: - Strong experience with Spring security, oauth2, keycloak, angular, and spring boot microservices. - Proficiency in integrating these technologies to create a working prototype. - Proven track record in develop...
Phone pe Payment Gateway integration with Java Spring boot We are looking for a skilled Java developer to integrate the Phone pe Payment Gateway into our Java Spring Boot application. Preferred Skills and Experience: - Strong proficiency in Java programming language - Experience with Java Spring Boot framework - Familiarity with Phone pe Payment Gateway integration Specific Requirements: - The client has specific features in mind for the payment gateway integration. Support: - No support needed after the project is completed.
Hello! I am a business owner in need of help with Java coding. Specifically, I need help with a code for a problem I am having and am looking for somebody who can work on it urgently. The desired timeline is 1-2 days. I have chosen to be open to suggestions regarding the coding, so if you can make improvements or have ideas to optimize the code, I am open to hearing them! Thank you for your time and if you are able to assist me, I would greatly appreciate it.
I am seeking assistance with my academic assignment involving context-free grammars and non-regularity. The assignment consists of Questions 3 to 6, and I need a knowledgeable freelancer to provide accurate solutions in the required format. Provide clear and concise solutions for each question, adhering to the specified CFG format. Complete the Python program for Question 5 as per the scaffold. Ensure correctness and accuracy of all solutions. Submit all solutions in separate files as specified in the provided scaffold. Note: Please only bid if you are proficient in context-free grammars, non-regularity proofs, and Python programming. I will provide you with all the necessary information and scaffold files to assist you in completing this assignment effectively. If you have any questions ...
I am looking for an experienced Java developer to work on a web development project. The timeline for completing this project is less than one month, so experience is essential. Applicants must demonstrate an advanced level of understanding of Java programming languages and technologies to be considered. If you have successfully completed web development projects before, I highly encourage you to apply. The ideal candidate will have an extensive portfolio outlining their experience with complex Java projects. Thank you in advance for your interest in this project!
Job Title: Sr. Java Developer with Apache Camel Location: Remotely Work Timings: 9 am to 5 pm EST (US hours) Job Type: Contract Job Description: * Senior developer with 7 plus years of experience * Strong hands-on experience in Apache Camel * Strong knowledge of Service oriented architecture * Excellent knowledge working in Java, Spring , Webservices ..etc * Excellent communication skills * Exhibit lead level skills, to be able to independently drive the assignments from requirements to Deployment by themselves etc. * Bachelor of Science in Computer Science. * Understanding of service-oriented architecture (SOA) deployments with the ability to design applications. * Good knowledge and experience designing and developing applications and reusable components using J2EE technologies, SOA arch...
I want a software application made using ChatGPT APIs or with similar API to create some content. Details can be discussed later .
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
The project should have its own custom tag library and Maven should be configured to compile your JSP files into bytecode (.class) files during the build process, making your project self-contained and ensuring it can execute JSPs independently of a servlet container. A working example of a Java maven project having some jsp. The maven project should compile the jsp to .class files. the jsp should contain tag lib java version 1.8 maven version is 38.4
I am looking for a freelancer who can help me upload some android apps via Google Play Console. The purpose of uploading these apps is to promote my business or service. I already have all the necessary resources, including app files, descriptions, and screenshots, ready to upload. The target audience for these apps is a general audience. Ideal skills and experience for this job include: - Proficiency in using Google Play Console for app upload - Knowledge of app store optimization techniques for better visibility and downloads - Experience in promoting apps to reach a wider audience - Strong attention to detail to ensure accurate app descriptions and screenshots.
Hello, We are currently seeking an experienced Python Developer to collaborate with both our Java and PySpark teams to address pending tasks. We require a Python Developer with substantial experience in handling enterprise-level data via APIs, including integration with third-party APIs. The selected developer will work closely with our development team for a duration of 1-2 weeks to finalize these tasks. To express your interest and share your relevant experience, please apply. More detailed information will be provided to candidates after the initial profile screening. Thank you.
Hi, I have a project (). While pressing record button on camera, it shrinks my face and changes the aspect ratio on some devices. Kindly fix this to resolve an aspect ratio problem in our Time Warp Video recording application. Currently, when users start recording, the aspect ratio appears incorrect, leading to video compression issues. I can award extra money also but please post working solutions with code and explanation.
I am looking to create an e-commerce Android app that will offer a convenient and user-friendly experience. I have a very clear vision of the features and functionalities that I would like to include in the app, so detailed specifications can be provided upon request. I am hoping to have the app developed within the next 1-3 months. If you believe you are the perfect candidate for this project, I would love to hear from you!
hello, i am looking for a skilled java developer to help me create plugins for a game called oldschool runescape, the plugins are just extenstions of the runelite client that can be used to do various things within the game, what i want to do is create these plugins to automate various tasks within the game, looking for a serious developer as i have had my time and money wasted here already ,. having knowledge of the game is a plus, please contact me if you would like further information , thank you
A user authenticates as normal to Keycloak as a result of an SSO request. If the user is a member of an impersonation group, then once authentication completes successfully, the user is presented with a selection screen comprising of their own identity (name) plus the names of the other members of the impersonation group. The authenticated user can then select which identity to proceed forward with.
Pen Testing Mobile App Automation Framework Looking for the mobile app pen-testing automation framework capable of performing static, dynamic, and malware analysis for iOS & Android using open source in CI/CD using java. The main purpose of this framework is to conduct penetration testing and identify security vulnerabilities, as well as assess the impact of potential attacks. Requirements: - Experience in developing automation frameworks for both iOS and Android - Strong knowledge of mobile app security and penetration testing techniques - Ability to identify and exploit security vulnerabilities - Familiarity with common attack vectors and mitigation strategies - Proficiency in programming languages such as Java - Knowledge of mobile app development frameworks and tools - Excellen...
I am looking for a software developer who has experience with A&M (Attestation and Monitoring) software for me. It should integrate with SoftPOS frontend payment application we are already developed. The development timeline for this project is expected to be 1 month. Key Features: - Real-Time Transaction Monitoring and Attestation of SofPOS transactions. Ideal Skills and Experience: - Experience in software development and coding - Strong knowledge of real-time performance monitoring - Familiarity with C++, Java, or Python coding languages - Ability to create a user-friendly interface - Understanding of data security measures If you have the necessary skills and experience, please submit your proposal for this application we are alr
Skills and Experience Required: - Proficiency in Java programming - Experience with Minecraft plugin development - Strong attention to detail and ability to follow specific requirements If you have a passion for Minecraft and the ability to bring custom gameplay enhancements to life, please submit your proposal for this project.
Implementing Helm chart for Native Kubernetes and AWS ECR I am looking for a skilled developer to implement a Helm chart for our highly complex Kubernetes application. The target environment for deploying the Helm chart is Native Kubernetes. Skills and Experience: - Strong experience with Native Kubernetes and Helm - In-depth knowledge of AWS ECR - Proficiency in CI/CD configuration for Kubernetes applications - Ability to handle highly complex Kubernetes applications - Strong problem-solving and troubleshooting skills The ideal candidate should be able to: - Develop and implement a Helm chart specifically for Native Kubernetes - Configure the Helm chart to deploy our highly complex Kubernetes application - Integrate the Helm chart with AWS ECR for seamless deployment - Set up CI/CD con...
Нужно будет сделать генератои текста на основе ИИ в котором обязательно! Можно будет использовать нецензурную лексику, или любые маты (ну или вообще то, что я захочу) Пример будет ниже (знаю крипово, но тому и цена)
Need a program builder to build me a specific program willing to pay if you can deliver! Had issues in the past with paying and never getting a program sent , if your honest and wanna make some $ contact me for more info
I am looking for a Closure Library programmer to implement a specific feature on my website. Feature: - The feature required is not specified Implementation: - I am open to suggestions for the implementation of the feature Timeline: - The completion timeline is flexible Ideal skills and experience: - Proficiency in Closure Library programming - Experience in implementing various features on websites - Strong problem-solving and communication skills
I am looking for a skilled Java developer to fix a bug in my Windows app. The specific issue that needs to be addressed is a bug/error. The urgency level for fixing this issue is medium, so it can wait a few days for completion. The app is doing a POST request based on a data introduced by the user in the frontend field or by txt import. Right now it gives an error for the link that is called, which is good actually. I do not have any specific requirements or preferences for the bug fix, as I trust the expertise of the freelancer. Ideal Skills and Experience: - Proficiency in Java programming - Experience with Windows app development - Strong problem-solving skills - Attention to detail - Ability to work independently and meet deadlines
I am looking for a skilled developer to create an arbitrage bot that will trade on the Binance cryptocurrency exchange. The bot will be developed using Python as the preferred programming language. Skills and experience required for this project: - Strong proficiency in Python programming language - Experience in developing trading bots for cryptocurrency exchanges - Knowledge of arbitrage strategies and trading algorithms - Familiarity with the Binance exchange API - Ability to handle high-risk trading strategies and manage potential losses The ideal candidate should have a proven track record in developing successful arbitrage bots, with a focus on high-risk, high-profit trading strategies. They should be able to effectively utilize the Binance exchange API to execute trades and monit...
I am looking for an experienced Android application developer who can create an application for both smartphones and tablets. The preferred programming language for this project is Java. The main functionality of the application will be security. Ideal Skills and Experience: - Strong knowledge and experience in Android application development - Proficiency in Java programming language - Familiarity with security protocols and encryption techniques - Ability to develop applications for both smartphones and tablets - Strong problem-solving skills and attention to detail - Time management and ability to meet strict deadlines
I am in need of a person who has worked end-to-end on a website building for an e-commerce like website, and must have experience in developing in a custom-built solution. The key functionalities I want to have on the website include product listing, Product Selling, and checkout. I already have the design for the website, so I would only need assistance with building it out. The successful applicant will need to have a good track record of website development in the e-commerce field and some examples of previous websites that they have built. Should know the JAVA. and have worked with the same on a full project.
I am looking for an Android developer Ideal Skills and Experience to reskin my code - Strong experience in Android app development - Proficiency in Java and Android Studio - Knowledge of UI/UX design principles - Familiarity with integrating payment gateways and earning features - Experience in creating engaging and user-friendly apps - Ability to troubleshoot and debug any issues that may arise during development
The project should have its own custom tag library and Maven should be configured to compile your JSP files into bytecode (.class) files during the build process, making your project self-contained and ensuring it can execute JSPs independently of a servlet container. A working example of a Java maven project having some jsp. The maven project should compile the jsp to .class files. the jsp should contain tag lib java version 1.8 maven version is 38.4
Requiero desarrollo de aplicación a la medida, consistente en un reproductor IPTV para Android (Móvil y TV), ya que cuento con un servidor de Xtream Codes API desde donde se estarían obteniendo los contenidos (TV en directo, Películas y Series) mediante una URL configurable desde un panel administrativo, y: una cuenta de usuario y contraseña que ingresaría el usuario. Yo estaría proporcionando los Casos de Uso a desarrollar (en idioma Español). Se requiere almacenar información en la nube, como: Perfiles del usuario y programas favoritos de cada perfil, reportes de mal funcionamiento de algún contenido, historial de sesiones del usuario, clave para control parental. Se requiere recibir notificaciones push desde un p...
I'm looking for a talented Java developer who can help me create a multi-tenant setup for my project. I need the setup to offer minimal customization for each tenant, so I'm looking for someone who is experienced in Spring Boot and is up to date with the latest Java technologies. Additionally, the system should be able to support more than 10 tenants, so scalability is something I will be taking into consideration when making my decision.
¡Hola! Estoy buscando un desarrollador de ANDROID experimentado que tenga experiencia en el desarrollo de soluciones de administración de dispositivos móviles (MDM). Específicamente, necesito a alguien con experiencia que pueda crear una solución MDM personalizada . Esta solución debe ser capaz de realizar un control avanzado del acceso de los usuarios, incluido el control total de los dispositivos, capacidades de borrado remoto y más. La funcionalidad MDM que necesito es para la inscripción y administración de dispositivos. No tengo una solución existente que deba integrarse, por lo que será necesario crear una nueva solución desde cero. El candidato ideal tiene amplia experiencia en el desarrollo de soluci...