Freelancer.com is offering you thousands of professional Java developers who will help you with all your Java tasks in a timeless manner and with excellent proficiency. Java is a scripting language used to enable programmatic access to objects within software applications. Java developers will make your website more interactive, allowing your users to input information, move elements around on the page, and make your website more functional.

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    454 jobs found, pricing in USD

    Need to solve the attached questions in Python or java.

    $20 / hr (Avg Bid)
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    12 bids
    web data scraping 6 days left
    VERIFIED

    We need to index some data from a target website and put the details in a csv or excel sheet. We only need experience person who can do a good script in python, vba, java or javascript, etc to handle this, as the site will need a script that scrape, wait for some time and starts, the wait and starts.

    $31 (Avg Bid)
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    6 bids
    Hire server Expert 6 days left
    VERIFIED

    More details will be shared via chat

    $8 - $24
    Sealed
    $8 - $24
    8 bids

    Need to solve the attached questions in Python or java.

    $20 (Avg Bid)
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    1 bids

    Create an Android Application from our existing POS software. Support for Offline mode (Sync functionality when internet is available) Print to thermal printers via Bluetooth Cross-Platform Mobile Development Our POS is written in PHP

    $500 (Avg Bid)
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    6 bids
    SonarQube Engineer 6 days left
    VERIFIED

    We would need to perform automatic reviews with static analysis of code to detect bugs, code smells, and security vulnerabilities on Java and React JS

    $9 / hr (Avg Bid)
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    2 bids

    I need to introduce in my current platform a builder strategy with indicators and trading view script builder automatically. Connection will be by API. Current version pending only builder

    $1233 (Avg Bid)
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    19 bids

    Looking for someone who can handle Full time L2 Production support. Required skills, Java, Linux, shell-scripting with good communication skills. Time: 3-4 days a week. EST time zone

    $1153 (Avg Bid)
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    13 bids

    I want a dialer app (calling UI) which displays Custom output when I press specific keys. (For e.g. I press 1299* and the output is a message which I can customise E.g. You have pressed the right output)

    $13 (Avg Bid)
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    In this first part of the project you will use OMNet++ to simulate the basic behavior of two data link layer protocols, namely, Time Division Multiple Access (TDMA) and Carrier Sense Multiple Access (CSMA). The simulation you create will be run with different setups/scenarios varying the number of hosts and amount of data to be transferred in each run. For different amounts of data (file sizes) you will measure the average time to transfer the data while varying the host count. To simplify the simulation, we will assume that each packet is 1KB in size, and each file size correspond to certain number of packets, so a 100KB file needs 100 packets to be transferred successfully. In this second part you will use the INET Framework to build a simulation to better understand how the nu...

    $666 (Avg Bid)
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    We need two apps that work on any devices. We want our apps to be customized, receive the details of customers through the apps and also should be like learning management system.

    $154 (Avg Bid)
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    I have ready made app in android and looking for the developer who could close in 1day

    $14 (Avg Bid)
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    4 bids

    I have ready made app in android and looking for the developer who could close in 1day

    $13 / hr (Avg Bid)
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    Build me a simple Android app 6 days left
    VERIFIED

    I need a simple Android app with easy intuitive UI for private "electronic database" of notes, history of treatment and gallery. Details: App will be used in my beauty salon for adding new clients, searching for existing clients and treatments and adding photos of every treatment. - It needs to operate in such way: Home page with search bar (for all clients. Searching by Name, City and telephone number should be possible.) - On homepage can be button like "+" or "Add new client" - When I open one client I need following: Name Last Name, Date of birth, address and tel. no. - history of all treatments ever done to this client listed and that can be clicked on every treatment, opened and viewed... - button "Add treatment". When I click on t...

    $8 / hr (Avg Bid)
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    15 bids
    game in nft 6 days left
    VERIFIED

    I need to create a simple game in nft for people to play and buy my nft, I wanted to know if anyone has done and knows how to make this type of game in nft.

    $1024 (Avg Bid)
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    24 bids

    I want a developer to help me in projects

    $107 (Avg Bid)
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    4 bids

    I am looking for a developer to build a native mobile app for iOS first (and for android after). I already have the design of the app and logo. I value clean and efficient high quality code with error checking that is appropriately documented. Language (ideally) - swift for ios (and java for android). App to be completed/packaged such that it is ready to be uploaded onto the app/play store and help to do this please. Background - -Data entry app that allows users to add entries locally (offline) and then these are uploaded to an online server via a remote API. Functions - -PIN screen lock -Data entry - store data locally in a database, search, manipulate data (edit/copy/delete) -Upload data - send to remote server -Download data - sync/receive data from remote server -Settings page -...

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    Looking for expert developer in High Charts and Java Scripts

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    8 bids

    We will provide the program source code as well as the test cases for migration, we estimate for ~10 mandays tasks.

    $1146 (Avg Bid)
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    15 bids

    Build an Android Application, for School related activities. Please drop your resume for further communication/details.

    $210 (Avg Bid)
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    8 bids
    Software development -- 2 6 days left
    VERIFIED

    Create jpeg file that cannot be copied?

    $353 (Avg Bid)
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    9 bids

    I want to build a java backend using spring boot and graphql. You have to fix ongoing project on remote pc. Work 1~2 hours every day, and I will pay you everyday.

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    Now we are using MS Access target solution is a Website Application. The New Web App replaces the MS Access App and the Legacy Web Site. The basic functionality we want in the new web app exists for the most part in the MS Access app.

    $138 (Avg Bid)
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    It is an open source 2D MMORPG game developed 20 years ago in Java language. The emulator starts when the file is run. The game was serviced in Korea, Japan, and Taiwan, and there are versions developed by several teams. But now the whole team has stopped developing. So there are some bugs and I need a feature implementation. I am a fan of classic games. I would like to fix bugs and features. I live in Korea and need a professional with 2D game development experience. More detailed information will be provided via chat. The version I have is 1.63. The following monsters are implemented in version 2.00 developed by another team. But the logic is slightly different. Their code is also provided for your reference. Please analyze the logic and implement the motion. 1. Add a motion or action...

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    It is a mobile app that tap into an existing market and maximising the output, earning for suppliers and reduces cost for clients. Uber is a success due to tapping to a market already existing but providing a solution to an existing problem. Taxis were expensive due to drivers waiting at their parks for a call up and roaming before getting clients. The invention provides an ability to reduce waste and waiting time there by increasing earnings. It's a combination of some variant apps like an hybrid of uber, amazon and some other kind of apps. But this is the future. It's the future direction for getting business done for the new generation and it's original in its own making.

    $403 (Avg Bid)
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    6 bids

    Build a customised Software for Data Management & Reports

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    62 bids

    I want to teach Automation using java. If anyone is interested, please do reach out.

    $8 - $20
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    i need someone who have experience in developing a staking site

    $1045 (Avg Bid)
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    16 bids
    Traccar skin 6 days left
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    Build a Traccar skin through API

    $211 (Avg Bid)
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    11 bids
    Product Engineer required 6 days left
    VERIFIED

    We are looking for a long term project with the below skills:: Understanding of data structures, data modeling and software architecture. Software Engineering proficiency in at least one high-level programming language (Java, Scala, Python or equivalent) used both for ML and automation tasks Experience with with premise data lakes ML toolset Experience deploying microservices (k8, Docker) Experience with streaming platform (kafka, rabbitmq) Experience working with rapid product development in an agile environment is preferred

    $1522 (Avg Bid)
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    Web developer 6 days left

    I need java web developer. I wanna change the google chrome extension. the change google extension is used in our company. thank you for your help.

    $165 (Avg Bid)
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    18 bids

    Looking for a program for my office that can log customer data. Basically they can take customer name or address their file will pull up. Office staff can type the phone conversation & log information so if someone else picks up phone later they will be able to read the call scripts. Be able to stay on our own cloud network & be able to attach pictures and pdfs to the each file to make for customer service simple and easy.

    $1135 (Avg Bid)
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    42 bids

    Employee Monitoring Software with Warehouse system basen Raspberry Pi Please check example of TOR

    $3087 (Avg Bid)
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    32 bids

    The app that takes care of all your medical prescription, description & restrictions. A true companion of your health. Where you can find nearby doctors & pharmacies. The app that will remind everything about your health care.

    $238 (Avg Bid)
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    24 bids

    Currently i am using a android app for my business that is downloaded from the play store. I want duplicate the app and connect with new cloud space.

    $13 (Avg Bid)
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    6 bids
    Mongo DB query 6 days left
    VERIFIED

    Hi, I am looking for one query where need to fetch, two columns and sort from the Mongo DB.

    $14 / hr (Avg Bid)
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    3 bids
    Snaglist-App 6 days left

    Snagging of Units and other construction quality related requirement

    $1412 (Avg Bid)
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    11 bids

    We have multiple projects, you have to work remotely in a day time, Please share your best per hour rate to start the work.

    $3 / hr (Avg Bid)
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    11 bids
    Apache SOLR Expert required 6 days left
    VERIFIED

    SOLR expert need to support and maintain SOLR clusters This is a SOLR Administration centric role which will involve the upkeep and maintenance of our various Solr clusters and collections. The volume of the data is huge and makes this an interesting as well as a challenging job requirement. Upkeep of SOLR Clusters/Collections Ensuring SOLR collections are running at all times Performance Tuning of SOLR queries Debugging/Troubleshooting issues. Upgrades and other routine maintenance.

    $21 / hr (Avg Bid)
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    need an app, which can work for solid waste management, can get complaints with locations where trash has not been picked up by nagar nigam vehicles. and can forward to vehicle driver with the location and driver/helper of the vehicle can collect the trash and upload photo with location.

    $149 (Avg Bid)
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    15 bids

    I need to get done Junit test for a Java project.

    $133 (Avg Bid)
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    10 bids

    I need a back end developer The applications use the following technologies and languages: - Web application: Grails (Groovy, Java, Spring Boot) - PWA: Ionic (TypeScript & Javascript) I will handle the front end part . Technologies IDE: Intellij (Webapp& PWA / mobile App) Webapp: Grails (Groovy, Java, Spring Boot) Mobile App (PWA): Ionic (TypeScript, JavaScript) Database: MySQL Other: Tomcat, GitLab, Jenkins, mySQLWorkbench Versions Webapp grailsVersion: 4.0.3 gormVersion: All other webapp specific versions can be taken from the "". App ionic: 6.11.11 angular/core: 10.0.0

    $22 / hr (Avg Bid)
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    12 bids

    I have a small lab test regarding secure programming need someoone who is expert in Programming

    $148 (Avg Bid)
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    I need to get done Junit Testing for a Java Project. We can discuss more in chat.

    $28 (Avg Bid)
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    9 bids
    Android WebView 6 days left

    Looking for add a new feature in my android webview for App Update on new version release.

    $16 (Avg Bid)
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    12 bids
    Java Developer 6 days left

    Job Title Java Developer Experience 5 + years Duration 3 Months* can be extendable Start Date Immediate – 15 Days Skills: • 5+ years of experience in leading Web/Microservices Applications, & management roles with increasing responsibility. • Very good understanding and Hands-on experience Microservices and their design patterns. • Must have AWS expertise and hands-on experience • Strong expertise in J2EE framework, Spring Boot, Spring Cloud, ORM frameworks, Object[1]Oriented design, architecture, API, and programming. • Strong in System architecture, design, infrastructure, and cloud development • Good understanding and experience on performance optimizations • Vast knowledge of Docker, Kubernetes • Experience in messagin...

    $1371 (Avg Bid)
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    7 bids
    Wowza Custom Plugin 6 days left
    VERIFIED

    Hi, I am looking for someone to create a few custom plugins for Wowza Media Server. We user RTMP devices which push an RTMP stream into Wowza. So what we need is 1) a plugin to disconnect the incoming RTMP stream if it has been running for more than X seconds OR if there has been no one viewing it for X seconds (needs to be customisable, a default and then customisable based on the stream name) 2) a plugin to send a http request to multiple servers to indicate a stream has been started/ended (needs to be able to handle a few URL strings and have variables to send the stream name) 3) a plugin to enable recording on all incoming streams which will save the file with the stream start time. On record finished again send a HTTP request to multiple servers to indicate the file has completed Tha...

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    Android Developer -- 25540 6 days left
    VERIFIED

    I am looking for an Android Developer, who could help me with my new app

    $81 (Avg Bid)
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    15 bids
    Account software 6 days left

    We wanted a software developer who have knowledge about the account software and worked on it in their past. We done the base and now we are looking the person who complete it.

    $118 (Avg Bid)
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    We are hiring for Java Development Freelancer Role: - Develop high-performance systems to publish REST Services. - Deliver services for high availability, with high quality. - Work closely with software developers to develop the best implementations. Develop efficient, reusable, reliable, and scalable software - Provide/Recommend solutions inclusive of third-party open-source APIs - Ability to do root cause analysis and improve product quality. - Exposure to Amazon Web Services and associated technologies - Work closely with Enterprise Clients and Map Requirements to Platform features Requirements: - 3-5 years relevant work experience designing and developing applications in high-paced environments; majorly in Product based organizations. - Demonstrated expertise in building and enhancin...

    $12 / hr (Avg Bid)
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