Top Upwork Freelancers

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  1. Elena K.

    Elena K. Agency Contractor

    Graphic designer, Illustrator

    Russia - Last active: 1 day ago - Tests: 1 - Portfolio: 7

    I’m a Graphic designer and an illustrator since 2003. I have extensive experience in the development of Identity for different companies. Also I make website creation. I am looking for the opportunity to create illustrations for various projects. I also take care of the development of Identity & website for your company. You can see my portfolio: on behance http://www.behance.net/zhishi/frame on flickr http://www.flickr.com/photos/zhishi/ on my website http://zhishi.ru/portfolio/

    Associated with: zhishi

    $30.00 /hr
    464 hours
    4.95
  2. Alexey B.

    Alexey B. Agency Contractor

    Senior Java Developer / Team lead: Java/J2EE

    Ukraine - Last active: 1 day ago - Tests: 2 - Portfolio: 3

    IT-Specialist with more then 15 years experience in software development. Over last 12 years I was working on web sites/portals development using Java and related techs: JSF, Facelets, RichFaces, Spring, Seam, JPA, Hibernate, EJB, Portlets, Maven, HTML, DHTML, CSS, JavaScript. JBoss AS, JBoss Portal, Tomcat, AMF, BlazeDS, SOAP, JSON, XML. Over last 7 years worked as team lead/architect. Last 3 years spent as project manager for eCommerce platform server-side/portal development. Hardworking, team and goal oriented, challenge seeking, work well under pressure. Ready for sporadic overtime.

    Groups: Yahoo Web Hosting Designer

    Associated with: U268

    $33.33 /hr
    15,529 hours
    4.86
  3. Viktor Pogrebniak

    Viktor Pogrebniak Agency Contractor

    Expert C/C++/CUDA developer

    Russia - Last active: 1 day ago - Tests: 10

    Software Engineer with more than 7 years of experience, have a lot of completed production C++ and Python projects, have strong GPU programming skills (CUDA), highly interested (and have several last years of uninterrupted experience) in Computer Science, especially in Data Analysis, Computer Vision, Machine Learning, Image Processing, Pattern Recognition and Data Mining fields. During the last 5 years I have worked on: - Computer Vision solutions (video survilliance techniques, Object Detection, Object Classification). - Machine Learning solutions (Neural Networks, Support Vector Machines, Decision Trees etc.). - Data Analysis solutions (statistics, visual search, visual indexing). During these years I have coded in C/C++, Python (main languages), Java and matlab. I create solutions for different platforms (Linux, Windows, Mac). I can use any VCS (mercurial, git, SVN etc.), having worked with other programmers in several projects (including technical leading). I have widely used libraries such as OpenCV, PCL (Point Cloud Library) and FFMPEG, and I have wide experience with solutions based on them (including optimization of existing algorithms). I also have strong QT skills (both front-end like GUI and back-end like threads, containers, databases, networking etc.) from early 3.x versions to the latest 5.x (including porting to the newer major version).

    Associated with: AIFIL

    $50.00 /hr
    371 hours
    4.98
  4. Denis K.

    Denis K. Agency Contractor

    Mr

    Bosnia and Herzegovina - Last active: 1 day ago - Tests: 1 - Portfolio: 6

    Over the past 11 years I have developed and worked on many projects that included using PHP, often in combination with MySql, Ajax/jQuery, etc. I'm also proficient in Codeigniter PHP framework. I have good knowledge of AngularJS and front-end development in general and I'm looking forward to being contacted by you and offered an opportunity to work for you. Another area of web development in which I can provide excellent service are Content Management Systems (CMS), such as Wordpress, Concrete5 and Joomla. I've have successfully converted sites from one CMS to another, conducting some advanced techniques on their respective databases. Also, many CMS related tasks included slicing of Photoshop (PSD) custom designs that my clients wanted to be integrated into CMS system. Another area of my expertise is translation. I'm a professor of English and a Certified Court Translator/Interpreter for English language as well. So I translate from English to Bosnian/Croatian/Serbian/Montenegrin and vice-versa. Should you require it, I can send you a sample translation from many different areas.

    Groups: Bluehost Developers and Designers, concrete5...

    Associated with: Kayda MediaGroup Agency

    $30.00 /hr
    788 hours
    4.91
  5. Mostanser Billah

    Mostanser Billah Agency Contractor

    Expert in PHP, Web Service, jQuery, Bootstrap, APIs, Payment Gateways

    Bangladesh - Last active: 1 day ago - Tests: 6 - Portfolio: 15

    Over the last 8 years, I have developed a wide range of websites using HTML, DHTML, PHP, Rails, jQuery, Bootstrap, MySQL, AJAX, SMARTY, Joomla, CodeIgniter, Laravel, Anahita, MySQL including sites for startup companies and small businesses. My core competency lies in complete end to end technology and management of a new website development project, and I am seeking opportunities to build websites or web applications from the ground up for you or your business. I also have experience in the following areas: OOP, SOAP, SHELL Programming, Oscommerce, PHPBB Forum, Zen-Cart, Mod Rewrite, Developing API and Rails. Linux Server Experience: Site Migrations, MySQL Database Replicating, Remote File Transfer, SSH.

    Groups: Bluehost Developers and Designers, Pligg...

    Associated with: Codefightersgb Agency

    $31.11 /hr
    7,423 hours
    4.91
  6. Dominik Levitsky

    Dominik Levitsky Agency Contractor

    Award-winning UI/UX & Graphic Designer

    Ukraine - Last active: 4 days ago - Tests: 6 - Portfolio: 13

    Full-cycle design pipeline. Beginning from the idea, sketching process, wireframes, and design concepts. And ending with a fully built product. Also, as many iterations as needed to make the product pixel-perfect and vector-ideal. I know how your design should be coded, and how your code structure should be designed. By hiring me you are basically hiring four guys — a desiger, a frontend guy, a backend guy, and a project manager. And the main rule — always keep the deadlines. But, if you have a super-urgent need-to-be-done-by-tomorrow project, sorry, I'm not your guy. Otherwise — you're welcome. http://dominik-levitsky.com

    Associated with: Dominik Levitsky Studio

    $30.00 /hr
    349 hours
    4.99
  7. Victor Vlasenko

    Victor Vlasenko Agency Contractor

    Founder and Senior Developer at SysGears

    Ukraine - Last active: 1 day ago - Tests: 4

    A senior developer with over 12 years of experience, focused on creating complex Java/Scala solutions. Especially efficient at software optimization and implementation of high performance computing systems. Fully dedicated to product quality, beauty of architecture and performance of the code. Technical Proficiencies: - Languages: Java, Scala, Groovy, JavaScript - Web Frameworks: Grails, Play 2, AngularJS - Frameworks: Akka, Spray, ZooKeeper - Databases: MongoDB, MySQL, H2

    Associated with: SysGears

    $30.00 /hr
    1,230 hours
    4.92
  8. Josh Wymer

    Josh Wymer Agency Contractor

    Web/Application Developer - PHP, MySQL, Java, Javascript, HTML, CSS, A

    United States - Last active: 6 days ago - Tests: 4

    Over the last 6 years, I have developed a wide range of websites using HMTL, Javascript, PHP, Java, JSP, Flex, CSS, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I have also developed SOAP APIs and I am familiar with the structure and authentication. Furthermore, I'm very experienced in advanced user experience through the use of jQuery and AJAX.

    Associated with: Wymer Marketing LLC Agency

    $72.22 /hr
    798 hours
    5.00
  9. Chris Escobar

    Chris Escobar Agency Contractor

    Project Management Consultant

    United States - Last active: 7 days ago

    This past year was brought in on 3-5 month projects to help launch new brands, migrate platforms and drive marketing programs for GoDaddy, Skype and most recently at Upwork (Elance-oDesk). Programs I've worked on included: • Data analysis & strategy development • Facilitating process & tasks • Drafting requirements & communications content • Brand development • Establishing KPIs for ROI analysis 10+ Years Project Management Experience including web and mobile app development involving: operations, compliance, security, channel and supply chain management executions with local and offshore teams. Project management team builder in an array of matrix management organizations and executing in PLC, waterfall and Agile methodologies. Advocate of communication, process (for efficiency and effectiveness), best practices, and change management. Set cadence of recurring reports for budget and resource updates to operations, finance, and business units. Startup Experience in product inception, creation and development. Integrated research and market data analysis to build product features and to author the business plan. Presented product plans and demos to VCs.

    Associated with: oDesk Payroll

    $94.00 /hr
    552 hours
    5.00
  10. Nader Soliman

    Nader Soliman Agency Contractor

    Software Engineer

    Egypt - Last active: 6 days ago - Tests: 4 - Portfolio: 2

    Current: Focused on AngularJS (CoffeeScript mainly) with full development stack Grunt, Karma, Jasmin and Protractor for both unit testing and end-to-end testing. TDD in heart, python was my favorite tool for the past few years using it for general purpose scripts and server apps (specially using flask and django) Past: Over 12 years of experience in building a wide range of software systems with wide range of complexities and sizes. During this time I had the privilege of serving different types of customers to solve their business and technical problems in various business sectors for both international and local customers. This was done without leaving the confines of my home country Egypt which speaks a lot of my high communication skills despite physical distance from customers. Details: - Over 6 years remote Software Engineer @ HubSpot based in Boston/US. - Served customers from Canada, New Zealand, US beside local Egyptian customers - Software development experience in different stacks of technology from early DOS and Linux systems. To modern systems (really the number of technologies I was involved with is beyond counting) - Emphasizing software engineering process for software development, from agile practices to Test-Driven-Development process. Recently: - Involved in web development & Android development - Most recent projects involved, AngularJS, NodeJS, Python, Nginx, PhoneGap/Cordova (of course Grunt, Bower and other development tools)

    Associated with: SigmaPro

    $30.00 /hr
    999 hours
    5.00