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Post your Java projects on Upwork and hire expert software engineers and senior Java developers. They can create mobile applications for Android and iOS, redevelop Android widgets, modify and add new Java scripts to your custom Java software, or develop GUI applications with the Swing GUI widget toolkit. The java developers on Upwork are experienced in Java persistence frameworks (like Hibernate), web development, security or database frameworks and Java project lifecycle management tools (like Maven). They can also check, fix or add new Java classes into your Java code, or manage your software debugging, quality control software development or testing tool programming.

Java is a class-based, object-oriented computer programming language that is ideal for cross-platform application development. It comes with a library of commonly used classes and utility functions, called the Java API. On Upwork, the world’s largest online workplace, companies hire experienced Java architects and software engineers to develop all kinds of cross-platform applications, from torrent clients and media players, to helpdesk tools and mobile apps.

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Java Job Cost Overview

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On average, 447 Java projects are completed every quarter on Upwork.


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Time needed to complete a Java project on Upwork.

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Java Upwork freelancers typically receive a client rating of 4.73.

Last updated: September 1, 2015
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  1. Matteo Biagetti

    Matteo Biagetti

    Software Engineer. Mainly focus on Symfony2, Doctrine2, twig, phpunit

    Italy - Tests: 3 - Portfolio: 1

    Web developer with PHP and Symfony2 framework. MOOC Addicted StackOwerflow Enthusiast! Check my LinkedIn profile for more detail here: See how i working on sample project on my Github account: Or see my activity on StackOverflow: Preferred tags: symfony2 | doctrine2 | twig | phpunit Also interested in: rabbitmq | ddd | mongodb | angular.js | node.js | java | android Currently I'm Contribute to challenging projects based on Symfony2 & friends technologies (RabbitMQ, MongoDB, AngularJS…) Senior J2EE Developer, interested in Object Oriented Analysis & Design. Also interested in Opensource Framework integration and Design Pattern. I'm interested in architecting Distributed Environment, with EAI Technologies. Always interested in migration projects and project refactoring. Methodologies: UML, RUP, Agile, XP Specialties: UML, RUP Java/J2EE Architectures and Patterns Object Oriented Analysis and Design, UML ,System Architecture, SOA. BEA Weblogic Server, BEA Weblogic Integration, JBoss Portal

    $19.99 /hr
    0 hours
  2. Merlin Patterson

    Merlin Patterson

    Product Wizard (Software Engineer)

    United States - Tests: 2

    "Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke I am a developer. I have strong interests in educational technologies, code literacy (and literacy in general), and startups. I primarily work on the backend but have frontend skills as well. I am a writer. I am currently writing a science fiction novel. I have a blog that is mainly about tech though occasionally my life slips in there (or is it the other way around?). And I wrote my dorm's weekly newsletter the academic year of September 2012 through April 2013. I am a self proclaimed efficiency expert. I am constantly looking for ways to speed up the unimportant things in life: like finding keys or getting ready in the morning: That way I can focus on the most important things in life: my friends and family, and my passions.

    $27.78 /hr
    0 hours
  3. Sergey Rostunov

    Sergey Rostunov

    Software Engineer

    Russia - Tests: 5

    I believe that my skills and experience will help you to achieve your desire goal. I am hard working, honest, dedicated, enthusiastic learner who quickly understands technical skills. I prefer your terms, conditions and requirements and co-operation. I'm highly driven and results oriented. 7+yr exp full stack web development: [Backend: PHP (Frameworks/CMS) and Python (Django/Flask), OOP, Databases (MySQL/PostgresSQL)] [Frontend: Html/css/js (jQuery, AngularJS)] 3+yr exp DevOps - system administration and and strong skills in set up and administration of Unix-like OS (Ubuntu/Centos), Web servers (Apache, Nginx), DB(MySQL, PostgreSQL, MongoDB, Redis) 3+yr exp Java SE [Core, Swing, JavaFX, Network, Android] 1+yr exp Java EE [Spring, Hibernate, JSP, GWT] 1+yr exp Data analyst [Webscrapping, data extraction, document clustering, data mining] Example of my code on GitHub:

    $4.89 /hr
    0 hours
  4. Mihail Dumitrache

    Mihail Dumitrache

    Software Developer

    Romania - Tests: 7 - Portfolio: 1

    Software developer with experience in embedded systems (C language, microcontrollers) and object-oriented programming (C#, C++). Also passionate about mobile applications development (Android, Java), electronics and robotics. Skills - Programming languages: Embedded C / C++, C#, Java - Mobile applications development (Android) - Practical experience with embedded systems with microcontrollers (ARM Cortex, Microchip PIC18, Atmel ATmega) - IDEs: Visual Studio 2012/2013, Xamarin Studio, Keil uVision, IntelliJ IDEA, Matlab/Simulink - Operating systems: Windows, Linux - Microsoft Office / LibreOffice

    $7.00 /hr
    0 hours
  5. George Chumakov

    George Chumakov

    Senior Software Engineer

    Ukraine - Tests: 1

    Hello potential partner, are you looking to establish a long term relationship with reliable and high skilled software developer? Or you're bored with failed projects, lost money, technical debt and unresponsive overseas developers and communication barriers? If so, contact me! I have very high personal standard of quality and rather working my hours out I give you guarantees of work done. My work experience is very rich and I've worked on variety of different projects - web, banking, IoT, automotive software. I've also been in role of a team leader for 2+ years . In general I have 5 years of experience, bachelor degree and my specialization is java, microservices, architecture and single page applications. I have experience in AWS and Netflix stack as well.

    $16.67 /hr
    0 hours
  6. Ricardo Ahumada

    Ricardo Ahumada

    Product Developer/Project Manager

    Spain - Portfolio: 3

    I am a Project Manager based in Pamplona-Spain and work remotely or onsite delivering digital project management services; web and mobile applications development; and digital products and business development services. My clients include companies and entrepreneurs that want to develop technological products and business or want an externalized project management. I have an extensive experience as consultant in the IT world for different industries (Intelligent Transportation Systems, Education, Legal editorials, etc); more than 9 years working as project manager; and tens of successful projects of all sizes. I have a Master in Executive Project Manager degree and dominate various project management methodologies, including PMP best practices (integration, scope, time, cost, quality, HR, communications and risk management), Agile and SCRUM. I’m founder of EnmotionValue Ltd (London based), a team with refreshing ideas focused on technology products development. We use customer problem-based approach to build solutions that turn into actual businesses: “Quick, lean and to the point from day one”. Our areas of expertise include: ☆Business development: Do you have an idea? We transform it into a business. - We help you to define your digital business model. Focus on a customer problem solution. Define and test the prototype. Create the Minimum Viable Product. Develop the traction channels and customer acquisition. And scale. ☆Applications development: Want to create a digital product? We turn it into a reality. - We take the soul of your idea and build with you a product that resolves users’ problems. For web, mobile or both. Create exceptional user experience. Empower your goals with technology and give you insights in its possibilities and concerns. -Web technologies (frontend and backend); Cloud technologies; Recommendation Systems; Big data & Small data systems. ☆Project management: Do you have a digital project? We take it to fruition. - Web apps, Mobile Apps (iPhone & Android), Intranets, and Extranets: define the charter, scope, technical and functional requirements, leadership and direction of project staff, QA, UX. - Guiding Agile project teams to achieve a high level of performance. Manage complex software development, architecture, and integration projects. Mentoring less experienced team members. Project tracking (costs, time, quality progress reports), problems resolution and risk management throughout the project life cycle. Reporting on project status to senior managers. I provide my clients with a professional service that includes: ✔ Methodology – Lean Product management, PMBOK Project Management, Agile and Scrum. Kanban. ✔ Documentation – briefs, contact reports, status reports, processes & call sheets ✔ Finance – estimates & budget control ✔ Schedules – scope timelines, milestones & hit deadlines ✔ Facilitation – Regular team meetings, identifying & removing obstacles impeding progress ✔ Assessment – Reviewing, adapting methodologies & anticipating risk ✔ Tools - Basecamp, Kanbanflow Work Experience --------------------------- Job Title: Business Developer, Project Manager & Founder Company: EnmotionValue LTD Description: Business development, Project Management, Business and Finance operations. From: Apr/2012 To: Now Job Title: CEO & Business Developer Company: i2MApp Innovación en Movilidad S.L. From: Feb/2011 To: Mar/2012 Job Title: Business Manager & Projects Office Director Company: Proyelia Innova S.L. From: May/2009 To: Jan/2011 Job Title: Project Management Office Director & Project Manager Company: Biko2 S.L. From: Dec/2007 To: Apr/2009 Job Title: Senior Analyst & Project Consultant Company: Thomson Reuters Aranzadi From: 2004 To: 2009 Job Title: CMS Product Coordinator, Senior Analyst & Trainer Company: New Media Publishing From: 2001 To: 2004

    $40.00 /hr
    0 hours
  7. Thomas Weatherby

    Thomas Weatherby

    Consulting Webdesigner and Physicist


    I'm an Oxford Physics Graduate currently working for my Masters in Germany. I am originally from Britain and a native English speaker but also able to speak German. I have worked coding for a Webshop that employed over 100 people in Munich as well as teaching in Summer schools and other academic institutions. I'm looking to work for more experience as well as to put myself through my Masters degree.

    $16.00 /hr
    0 hours
  8. Bogdan Vygovsky

    Bogdan Vygovsky

    Software Engineer

    United States

    Technical Expertise Skills: Java, Ruby, Python, PHP, HTML, CSS, JavaScript, Cucumber, Selenium, Capybara-webkit, Phantomjs, Jenkins, EC2 Frameworks: Zend Studio, Spring Databases: MySQL5, Oracle SQL Operating Systems: Unix/Linux, Microsoft Windows, Mac OS X Source Control: Git (GitHub, Bitbucket), SVN Courses / Workshops Weekly Web Workshop at Snap Interactive, New York, NY, 2013 Mathematical program “Eureka”, Kharkiv, Ukraine Computer Academy “Step”, Kharkiv, Ukraine, 2009-2010

    $50.00 /hr
    0 hours
  9. Alexander Travkin

    Alexander Travkin

    C# Programmer and Unity3D Developer

    Russia - Portfolio: 3

    I am C# programmer with a wide experience in game-development with use of SFML and Unity3D. Also, I worked year with augmented reality with use of Unity3D and Vuforia. The projects developed by me can be seen in a portfolio. With me you will get: • Pleasant communication • Organized approach to business. • Implementing all of your wishes. • Strict adherence to deadlines. • Adequate pricing.

    $18.00 /hr
    0 hours
  10. Stefan Virag

    Stefan Virag

    Programmer | Full Stack Web Developer

    Serbia - Tests: 3 - Portfolio: 1

    Updated: September 2015 I'm currently finishing Computer Science university (last year at the moment) and I'm looking to get myself involved with as many projects as possible! I'm passionate about programming and I find myself quite frequently practicing it in my free time. I have a solid background in imperative/object-oriented programming languages and I recently started learning more and more about web development. I have experience using Ruby on Rails and at this moment I'm jumping into MEAN stack world (MongoDB, ExpressJS, AngularJS and NodeJS) Of course throughout my studies I had to learn a plethora of programming langues and subjects including but not limited to: Languages: -C, C++, Python, Ruby, Java, Haskell, Prolog, PHP, HTML, CSS, JavaScript, SQL (IBM DB2) Subjects/Topics: -Abstract Math, Linear Algebra, Geometry, Artificial Intelligence, Discrete Structures, Algorithms And Data Structures, Linux System Calls, Relational Databases Of course, I have passion for some and less of a passion for others, but I believe in "using the right tool for the right job" and in that regards I find it not too difficult to jump in a project that requires a languages that I didn't use in a long time, simply because it's a matter of syntax and that's the "easy" part of programming in my opinion.

    $10.00 /hr
    0 hours