Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on today!

Nga 271,137 vlerësimet, klientët vlerësojnë Java Developers 4.85 nga 5 yje.
Punësoni Java Developers


Kërkimet e mia të fundit
Filtro sipas:
deri në
deri në
deri në
    Shteti i punës
    308 punët e gjetura, me çmimin EUR
    Autho Integration 6 ditë left

    Integrate Auth0 in my spring boot application show work in Anydesk or TeamVirewer

    €11 (Avg Bid)
    €11 Oferta mesatare
    2 ofertat
    Simple File Manager Android App 6 ditë left

    Create a android application - simple file manager with the following features: The application offers the following features: 1. File and Folder Browsing and Searching based on name app provides the option to view all files and folders on the device or apply filters based on the date of modification. app allows users to create, delete, and rename files and folders on their device. The contextual menu enables users to perform these actions on selected files or folders.

    €13 (Avg Bid)
    €13 Oferta mesatare
    4 ofertat

    Im looking for a software developer than can code a platform for affiliate marketing tracking

    €6807 (Avg Bid)
    €6807 Oferta mesatare
    26 ofertat

    aplicativo apk para controle de gastos

    €90 (Avg Bid)
    €90 Oferta mesatare
    4 ofertat

    We’re looking for Java programmer with a strong background for Spring, Swing, and mobile support. Also, we require experiences on CRM and ERP programs covering Invoice, POS, Accounting of AR/AP, Inventory, Employee & Payroll,.. We will discuss the project in details with the selected coder. Please write down the “Understand” text before submitting your bid and show us your previous experiences explicitly. Otherwise, your bidding will be neglected. 1. The first 2 weeks will be a trial period with 20 hours per week and 40 hours after a trial period. 2. The hourly rate is not more than $6.00. 3. We expect to have a progress report every day. 4. Requires a signed NDA for the selected coder before starting the project.

    €6 / hr (Avg Bid)
    €6 / hr Oferta mesatare
    6 ofertat

    I am looking for a freelancer who are expert in Android. I want you to create a custom class file for SearchView that come with animation behavior exactly like gmail. I want you to make the search animation to floating from the right to the left. I dont want you to use a third party library only use my own. I have already created a layout that come with frameLayout, a edittext, some imagebutton, so I just need you to put in the searchbar, use the setMenuItem for the search to work to display them in the search bar with animation behavior. And I have got some apaters files that I need you to get it work with the search to display the history and display the search. If you can do this for $50 that would be great. I look forward to work with you. No time wasters please. Thanks for your intere...

    €35 (Avg Bid)
    €35 Oferta mesatare
    10 ofertat
    database engine 6 ditë left

    build a small database engine with support for Octrees Indices. The required functionalities are 1) creating tables, 2) inserting tuples, 3) deleting tuples, 4) searching in tables linearly, 5) creating an Octree upon demand, and 6) using the created octree(s) where appropriate.

    €138 (Avg Bid)
    €138 Oferta mesatare
    11 ofertat

    Hello, - Need an Publisher for publishing my android App on Google Play. - I have Ready -made applications(.aab.file.), but i don't have an any google play console account. I have 3 android application built in java/kotlin language and I want to upload it in your Gp Console. - 700 Rupees = 3 Apps. - Developer access compulsory available. -I am looking for an Android Developer, you will publish an apps,you will receive all materials from is a 15-20 minutes job as i have everything ready on my you just need to upload it as soon as possible. Requirements: - Play Console Developer Account - Anydesk ID / Team Viwer / Console Access When sending your proposal, please write your google play developer name. - Important Note :- Every Month Rent :- 2400 Rupees Thank you....

    €6 (Avg Bid)
    €6 Oferta mesatare
    1 ofertat
    Java Enterprise App 6 ditë left

    I need a Java EE application that runs on payara server. - It needs to be fully working - it's not specific, it can be any application(shop, bank, or whatever comes in your mind) - it needs to run on payara or glasfish - it needs to have and use EJB containers - it needs a readme file explaining all the details of development

    €132 (Avg Bid)
    €132 Oferta mesatare
    15 ofertat

    I am seeking an expert developer to create an Android native (JAVA) app to support Google Health Vitals. This app will run exclusively on the Android platform, and Display data in table format. Below are the requirements. Connect to google account and get the health vitals stored in google account. Ex. Heart Rate Step count And other data too. Show all the vital data in the app home page. Display records in tabular format. No need to save any data. Experienced developer is required. The app should be coded entirely in JAVA, and adhere to Google's standards. Furthermore, the design of this app must be of a professional quality. If you think you are up for the challenge and are an expert in mobile-app development, then this project is for you!

    €236 (Avg Bid)
    €236 Oferta mesatare
    16 ofertat

    I'm looking for an experienced Technical Content Creator with expertise in the areas of C, C++, Java & python programing in video format and screen recording. This person should be knowledgeable in these subjects and be able to create effective content to be used across web-based platforms. You must have previous experience creating content, specifically content related to C, C++, Java & python programming. The content you create must be up-to-date and accurate in order to ensure user satisfaction. If you have experience in the field and are proficient in C, C++, Java & python programming then please apply for this job. Thanks for your interest!

    €55 (Avg Bid)
    €55 Oferta mesatare
    4 ofertat
    Expert in Cyclos 6 ditë left

    We are looking for an expert in Cyclos Development. If you think you are a right candidate, please show us your cyclos project. Then, we will interview and hire you. Remember we only consider if you show us your cyclos.

    €46 / hr (Avg Bid)
    €46 / hr Oferta mesatare
    1 ofertat

    Looking to predict market moves with some data entry in the excel file. I have the logic. Need to program it.

    €11 (Avg Bid)
    €11 Oferta mesatare
    29 ofertat

    Hi I need help with typescript and jest testing framework. I have a few method in ts to get secrets, assumerole, call API, convert Jason to csv and upload csv to s3. This code is working perfect but having difficulty with unit test using jest framework. I have the unit test for all method but somehow it’s failing. I need some help fixing them.

    €141 (Avg Bid)
    €141 Oferta mesatare
    15 ofertat

    I am looking for someone to draw up some UML class and activity diagrams for a project. The successful freelancer should include any relevant past work in their application. The requirement is to develop 1-3 diagrams in total. Familiarity with UML class and activity diagrams is paramount. I am looking for someone who can deliver a professional product to complete the project on schedule and within budget.

    €35 (Avg Bid)
    €35 Oferta mesatare
    19 ofertat
    AES Project 6 ditë left

    AES Encryption work on cryptography

    €20 (Avg Bid)
    €20 Oferta mesatare
    9 ofertat
    Module Add On 6 ditë left

    Salam kepada semua freelancer yang berminat. Untuk project kali ini, kita mencari developer berpengalaman untuk membantu menambah modul dengan sistem yang sedia ada yang diasaskan oleh Java Framework. Kami mencari freelancer yang dapat membantu kami dengan kod baru atau menggunakan kod sedia ada. Kami juga telahpun bersedia dengan mockup UI untuk projek ini dan pelbagai persyaratan yang diperlukan telah disediakan. Jangan lepaskan peluang yang menarik ini kerana kami sangat antusias memperolehi anda berdasarkan kebolehan dan pengalaman anda. Sekiranya anda berminat, sila buat maklumat profil anda, unggah resume/pengalaman/history kerja anda dan berikan kami tawaran dengan harga yang munas

    €3653 (Avg Bid)
    €3653 Oferta mesatare
    4 ofertat

    i need a java expert to lead me on how to get started on java

    €21 (Avg Bid)
    €21 Oferta mesatare
    13 ofertat

    Hello! I am looking for help on a data structures course of intermediate difficulty in the language of C++. This course should be designed as live sessions and discussion forums, so that I can experience an interactive learning experience. Ideally, the course should cover topics such as stacks, queues, trees, heaps and hash tables, while also offering in depth coverage of algorithms like searching and sorting. You should be able to provide detailed explanations of the concepts and the simple applications of these concepts. The forums should enable me to ask questions and get a response within a reasonable time frame. Ultimately, I hope to gain proficiency in data structures and can apply my knowledge in real life.

    €7 / hr (Avg Bid)
    €7 / hr Oferta mesatare
    9 ofertat
    Interactive WhatsApp Chatbot 6 ditë left

    I am looking for a capable freelancer to help me create an interactive chatbot for WhatsApp. The chatbot should be able to handle both single tasks and multiple tasks, and should utilize AI-driven technology to best serve my needs. The project will involve researching existing technologies and working with me to create a complex and intelligent solution. As such, I require a freelancer with a strong background in developing chatbot solutions and artificial intelligence. Any coding and testing will be done under my supervision. Experience of working on other chatbot systems such as Facebook Messenger, SMS, etc. is a plus.

    €191 (Avg Bid)
    €191 Oferta mesatare
    15 ofertat

    Hi there I'd like to have an ebook reader app developed. The app would have 4 up to 5 max screens. The job is not urgent at all as it's a personal project I'd like to see to fruition. I have an adobe xd mockup and if anything isn't possible lmk. There's no need for network integration. I'd like to have the source code and publish it (maybe) on the app store/play store if the app is nice to use but ultimately it's just for me. I have downloaded the entire play store of ereaders and I haven't found what I would like so that's where this idea came from I really hope you can help my dream app come true.

    €206 (Avg Bid)
    €206 Oferta mesatare
    32 ofertat

    Hello am looking android app developer for manage my applications and host on play store. I have 2 game application intrested person message me fast

    €12 (Avg Bid)
    €12 Oferta mesatare
    6 ofertat

    I am looking for a specialist in creating a telegram bot. I need a bot capable of receiving user and chat information. Make just two buttons and display all available information about the connected user and the connected chat. This bot is a psychological training of relations between a man and a woman, for this you need to be able to add two people to the bot, two partners, a man and a woman, this is the function I am now trying to find in the telegram bot. In the documentation, I found two suitable methods KeyboardButtonRequestUser and KeyboardButtonRequestChat, but I can’t figure out how to connect a second user to the bot and get data about it. As I understand it, the data from KeyboardButtonRequestChat and KeyboardButtonRequestUser are transferred to the UserShared object, which...

    €57 (Avg Bid)
    €57 Oferta mesatare
    8 ofertat
    Need Ready made satta mattka game 6 ditë left

    I need ready made app satta matka game in android or web

    €335 (Avg Bid)
    €335 Oferta mesatare
    18 ofertat
    ViralMarket 6 ditë left

    I need a developer Who has knowledge On Android , Ui/Ux l,ogo design ViralMarket is a mobile application that combines B2C and B2B e-commerce features with viral marketing to create a unique and engaging shopping experience for users. The app enables individuals to browse and purchase products from various businesses, while also allowing businesses to create and manage their virtual stores and sell their products to customers. Features for B2C Users: User-friendly interface with easy navigation, product categorization, and search functionality. Browsing, selecting, and purchasing products with options to add items to cart, wishlist, and favorites for easy reordering. Secure and easy payment processing through various payment gateways. Easy registration and login process for account cre...

    €62 (Avg Bid)
    €62 Oferta mesatare
    6 ofertat

    hii i m looking for a app developer who can develop a screen recorder app for my own use . which can easily hide esp hack of pubg from recording . for more information dm me... i can also increase the price if you can do it urgently

    €14 (Avg Bid)
    €14 Oferta mesatare
    2 ofertat

    We have requirement to develop a website for programing language C/C++/Java/Python Interview questions Answers.

    €29 (Avg Bid)
    €29 Oferta mesatare
    9 ofertat

    A runnable code snippet is needed to implement the following functions. Refer to the IntelliJ search function (you can refer to FindPopupPanel, but cannot use it, a simplified version is required). the code and then pop up a window to display the displayed code (using EditorIml). the mouse enters the pop-up window, gradually display a floating button on the right side (refer to the screenshot). the mouse leaves the pop-up window, the floating button gradually disappears (refer to the screenshot).

    €18 (Avg Bid)
    €18 Oferta mesatare
    1 ofertat

    I am looking for a skilled freelancer to develop an Android mobile app that I can use with an external camera. The app must be able to interface with the camera, and provide me with special features.I am looking for someone who is experienced in working with Android platforms, and ensuring that the app functions properly.I would also like to have a discussion about the exact features and capabilities of the app, so that I can ensure that I am being provided with the product that I need. If you have the skills and expertise to help me with this project, please get in touch. i would prefer mit app invertor

    €527 (Avg Bid)
    €527 Oferta mesatare
    15 ofertat

    Will write python cross-compiler for Intel 8008 massively-parallel network with Data-Driven MQTT messaging. Freelancer should have recent experience with tensor application of Maxwell's Equations in anisotropic materials with large magnetic permeabilities.

    €515 (Avg Bid)
    €515 Oferta mesatare
    25 ofertat

    I have to make attendance app where employee can make their attendance(in-Out) through this app

    €165 (Avg Bid)
    €165 Oferta mesatare
    15 ofertat

    To develop an indoor navigation system for Android using Bluetooth beacons, the following skills and knowledge are required: Android app development: A strong understanding of the Android platform and development environment is essential. Bluetooth Low Energy (BLE): Knowledge of BLE technology and how to use it to communicate with beacons. Beacon technology: Knowledge of the different types of beacons, how they work, and how to integrate them with an Android app. Indoor positioning algorithms: Understanding of the different algorithms used for indoor positioning, such as trilateration, fingerprinting, and magnetic field-based positioning. Map and location data management: Knowledge of how to manage map and location data, including how to store, retrieve, and display this information i...

    €35 / hr (Avg Bid)
    €35 / hr Oferta mesatare
    17 ofertat

    Hello, I am looking to create a project that uses JavaScript to script a process that stores account balances in a MySQL database. To achieve this, I plan on using the CCXT library to access the account balances from an exchange. The project should cover the scripting and design of an automated system that adds account balances to the MySQL database on a recurring basis. Familiarity with the CCXT library, JavaScript, and MySQL is a must. For maximum efficiency, I also plan on using an API from the selected exchange. If you'd like to collaborate on this project, please reach out. Thank you!

    €90 (Avg Bid)
    €90 Oferta mesatare
    25 ofertat
    Fyers API- Algo Trading 6 ditë left

    My experience with trading has been in the intermediate level and I am looking to develop automated strategies. I want to use Fyers API for algo trading and streamline the process of executing trades for me. My focus is to design a fully automated trading system that will help reduce any manual intervention. I am open to using a variety of programming languages, such as C#, Java, or Python, though I am comfortable exploring other options if needed. I am confident that I have the skills and experience necessary to develop a successful automated trading system utilizing the Fyers API.

    €101 (Avg Bid)
    €101 Oferta mesatare
    8 ofertat
    Greedy Algorithm Master 6 ditë left

    I am looking for a progress algorthm developer. You should use the greedy algorithm in my project. I will let u know the detail spec in private chat. Please only bid on expert. Thanks Be Regards..

    €118 (Avg Bid)
    €118 Oferta mesatare
    32 ofertat

    I’m looking for a team of software developers with extensive experience in Python to develop a data science and statistical project. The ideal candidates should have advanced Python knowledge and proficiency, and should be able to complete the project within a month. The project will include the development of procedures for efficient build a software application (SaaS) using advance statistics and data science techniques. The team should be able to communicate regularly, provide periodic updates and feedback, and deliver an optimal solution that satisfies all project requirements.

    €691 (Avg Bid)
    €691 Oferta mesatare
    36 ofertat
    Sass Technology Platform Project 6 ditë left

    Hello, I'm looking for a developer who can help me with my Sass technology platform project. I need someone with experience working with web technologies, including HTTP, REST and JAVA. I am looking to purchase a platform currently that will save design time, its made for accounting and finance tracking, user log-in, have separate sections inside the portal with limited access, even if admin log-in, each section would need to have a password and 2-way verification. The portal would be used to hold data from API/Salesforce in one section and other sections would have an ability to calculate certain fields some formulas are basic and some formulas are advances but for now I am looking for a portal design and functionality * prefer to purchase something that is already build and if you...

    €478 (Avg Bid)
    €478 Oferta mesatare
    41 ofertat

    We are looking for someone to assist with the development of a mod which is being custom built for a Minecraft server running version 1.18.2. The server is an equine theme server, however there will be some non-equine related functionality in the mod such as NPC’s, quests, and weather. We already have people working on models and animations, so all we need is someone to assist the current dev with the code side. A lot of the “domain logic” for the mod has been done, we are needing someone who can focus on the forge mod specific elements. Due to budget constraints we are unlikely looking for someone who will be able to assist with all the areas of functionality, so we are open to discuss where you could help based on your abilities and the budget constraints. Forge vers...

    €216 (Avg Bid)
    €216 Oferta mesatare
    5 ofertat

    fix an issue in a completed and archived github project

    €68 (Avg Bid)
    €68 Oferta mesatare
    23 ofertat
    haskell programming 5 ditë left

    Hi, my name is [Name] and I am looking for a programmer that has experience with the Haskell programming language. The projects requires specific tools and libraries to be used, and possibly even designed. I have done some research into available frameworks and libraries and know that this job requires someone skilled in the Haskell language to get the job done. The experience in using existing libraries and frameworks is a must, along with maybe needing to design specific ones. If you have the right skill set and experience, please contact me and let me know about your capabilities and qualifications for the job.

    €15 (Avg Bid)
    €15 Oferta mesatare
    6 ofertat

    I have project to submit till next week which I need help in doing it. JUnit, TestNG and Cucumber are the three projects.

    €21 (Avg Bid)
    €21 Oferta mesatare
    3 ofertat

    A virtual sports game that allows users to participate in cash games, horse racing, and racing games must be developed with java html5. Contact me if you can.

    €2196 (Avg Bid)
    €2196 Oferta mesatare
    28 ofertat

    I am looking to have a sports betting program written in Java. It is to be designed as a software application and integrated with an online payment platform. The program will be a platform that provides codes that contain football events It will be a platform for experts who predict sporting events, and provide an intuitive user interface. I am looking for experienced developers who are familiar with sports betting applications and know how to design one securely for efficient and secure operation. I need someone who can develop this programming language quickly and reliably. In addition, the sports betting program should also be integrated with an existing online payment platform to handle payments securely. I am looking for experienced developers who possess the technical expertise and k...

    €458 (Avg Bid)
    €458 Oferta mesatare
    30 ofertat

    ****Please read before bid I had bad experience with freelancer. **** I am looking for an experienced Android app developer who is able to create a fully-integrated and user-authenticated Android application. The app needs to be secure and stable due to user authentication. I The database with be firebase integrate with existing IOS project. Same instance. Here are the details: Please read carefully!!! I need a complete functional Andorid application. (It is bit simple application). There will be two type of user 1. General user 2. Service User. There will be separate registration process for General user, Name (fast/last), Email, phone and password. For service user, Name fast/last, Email, phone, Car name, Photo (may upload later), License no, password. Both registration processes wi...

    €477 (Avg Bid)
    €477 Oferta mesatare
    59 ofertat

    My company is looking for software developers to take part in a data structure and algorithm coding test. We are looking for an individual who has a high level of expertise in programming and who can write code in a specific language. For this assessment, we need the test to be written in Java. The questions are of intermediate difficulty and related to data structures and algorithms. Although we do not know the exact requests, we would like the individual completing the test to be knowledgeable on a variety of data structures and algorithms that might be asked in the assessment. This coding test would provide us with good insight into a potential candidate's coding ability and their knowledge of programming languages. To ensure the task is completed accurately, we will ask for the ...

    €11 (Avg Bid)
    €11 Oferta mesatare
    6 ofertat

    Implement OptaPlanner () for a combination of VRP (vehicle routing problem) and employee scheduling. Resources for you to see how OptaPlanner Works: > > > Scope of the project: > write constraints and scoring for around 10 constraints > parse the job data from our API > post the optimized result to our API when the calculation is complete > follow the best practices for performance so the calculation can be done in a timely manner > documentation on the implementation and testing procedure Please start your bid with your favorite fruit and also give an estimated total hours this will take you.

    €21 / hr (Avg Bid)
    €21 / hr Oferta mesatare
    13 ofertat

    Urgent problem with website - need help to establish issue and debug, thanks a lot

    €129 (Avg Bid)
    €129 Oferta mesatare
    51 ofertat

    i am looking java developer to create REST API using spring boot and database mysql

    €59 (Avg Bid)
    €59 Oferta mesatare
    50 ofertat
    Twilio Developer 5 ditë left

    I want integrate twilio voice on the project.

    €39 (Avg Bid)
    €39 Oferta mesatare
    8 ofertat
    Quick APK Modification 5 ditë left

    Easy modification. Decompile existing apk. Swap 20 image files. Change app name and recompile. Needs to work on Amazon Firesticks 4k and Zoomtak VPlus Amlogic boxes.

    €469 (Avg Bid)
    €469 Oferta mesatare
    42 ofertat

    Artikuj Të Rekomanduar Vetëm Për Ju

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Python runs some of the biggest websites on the net. Here’s how to create a website using Python, one of the easiest programming languages around.
    8 MIN READ
    You can build a stunning website on the Wordpress platform. Here is a collection of 10 sensational Wordpress designs to ignite your creativity.
    7 MIN READ