Top Upwork Freelancers

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  1. Pavel B.

    Pavel B.

    Ruby / Ruby on Rails Developer

    Russia - Last active: 2 days ago - Tests: 2

    Three years experience of writing software in Ruby and Ruby on Rails. I follow the trends in the Ruby / Rails world and try to be on the edge. Good communication the most important parts of development. Rails, Ruby HTML/CSS/JQuery BDD/TDD, Rspec, Git Heroku, AWS Proficient in web-crawling (Nokogiri, Mechanize, Selenium and PhantomJs)

    Groups: Coding Champs

    $22.22 /hr
    1,251 hours
    4.99
  2. Danijel Jambrečina

    Danijel Jambrečina

    Java developer

    Croatia - Last active: 13 days ago - Tests: 8

    I'm a master of science in Information and Communication Technology. Over the last 5 years I have worked on several projects with several different technologies. I prefer Java, but also have experience with ASP.NET and C#. I also have experience with databases (PostgreSQL, MySQL) as well as with HTML, CSS and PHP. For more details, check my LinkedIn profile: http://www.linkedin.com/profile/view?id=212992409

    $16.67 /hr
    0 hours
    5.00
  3. Peter Ndikuwera

    Peter Ndikuwera

    Senior Linux System Administrator & Database guru

    Uganda - Last active: 1 day ago - Tests: 6 - Portfolio: 3

    I'm passionate about Linux! 15 years of experience with Linux & UNIX Systems Administration - SUSE, Centos, Debian, Ubuntu, SCO Unixware, Solaris 10 years providing support and administering email platforms - Zimbra, Horde, Kolab Database Administrator & Developer (ORACLE, PostgreSQL, MySQL, ProgressDB) Contributor to OSS applications (mainly Amarok) openSUSE Hacker Firewall setup using ipchains/iptables

    $20.00 /hr
    5 hours
    5.00
  4. Jonas S.

    Jonas S.

    Math. Crafting fast social/charity-startups. Rent my brain

    Germany - Last active: 15 days ago - Tests: 12

    Talent: Math. One in thousands. In love with desiging & modelling any concept, (social-) system, startup and their pratical implementation/process, mission, credo, by-law, patent to surpass financial projections as well as interlectual/moral goals! I rapidly understand situations and seemlessly solutions flash up & incubate until failproof/backed by stochastics and statistics. 2. I'm looking to cofound or volunteer for any social projects. I managed charity campaigns successfully. 3. I hope to leverage my skills by coming up with algorithms and core code for any science project, boinc, distributed systems/databases, machine learning/AI, dao. I dont believe in hourly payment for unique/non-repetitive work. Rather milestones (, shares or votes) 4. I'll easily be profitable in automating any relevant but repetitive tasks and saving human working hours. Tasks / Processes usually turn out much smaller than clients expect - after all you can devide any complexity by volume. 5. I'd be happy to participate in interdisciplinary projects involving one or more of the following fields (in some i got extensive experience others of interest yet only): Big data analysis/datascience Business plans. distrubuted autonomous, etherium, supercomputering (clusters, cloud) , Crowdsourcing, Finance/Stockmarket/Trading Mathematics/Stochastic-process, Crowdfunding, Social-business, microlending, microwork, peer2peer, blockchain, Datajournalism, visualization, Infografics, Diagram invention, illustration. algorithmic thinking, Chemics, Nanotechnology, Physics, Biology, regenerative Energy, Matlab, SciDB, NewSQL, drizzle, nuodb, neo4j, relational in-memory database, redis, voltdb, facebook ads adverts, adwords for non profits Cloudera, Wolfram Mathematica, C++, C#, cuda, opencl, Visual Studio, Prolog, logic, UIMA, computational linguistics, google ngrams, google trends, NLP, computer vision, openCV, statistics, Wolfram alpha, IBM watson, SPSS, R, Ethics, Politics, Philosophy, Theology, apache camel, google grants, apache mahout, imacros, Sociology, Psychology, rapid prototyping. Languages: German (native), English, bits of Latin languages

    $314.16 /hr
    6 hours
    5.00
  5. Jay Prakash Sarma

    Jay Prakash Sarma

    droidlabour

    India - Last active: 1 month ago - Tests: 1 - Portfolio: 2

    Programming Skills 1. PHP 2. Python 3. Bash Script 4. Scala/JAVA System administration 1. Linux [RedHat, CentOS, Ubuntu] 2. Amazon Web Services 3. Rackspace 4. Digital Ocean 5. Vagrant Scalable tools 1. ElasticSearch 2. Puppet/Chef 3. Redis 4. MongoDB Deployment 1. git 2. Continuous integration Iam starting from scratch at oDesk. My other freelancer experiences can be found at freelancer.com Here is my profile URL: https://www.freelancer.com/u/joystick220.html

    $28.00 /hr
    0 hours
    5.00
  6. Arkadiusz S.

    Arkadiusz S.

    Front-end Developer

    Poland - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    Hi there, I’m Arek! I am an passionate Front-end Developer and Architect from Poland. I help companies from Europe and USA write good quality, scalable software. I can do my best at front end topics: - Python and Django (as backend) - Backbone.js / Marionette - Twitter Bootstrap - JavaScript (Phonegap, node.js, winJS and many smaller libs.) - SCSS, LESS and CSS3 (performance, resposive design, scale) - Jasmine - unit tests In my workflow I prefer to use GIT. Please feel free to ask me a question. I can send you some code from my previous work.

    $50.00 /hr
    8 hours
    4.68
  7. Nicholas Gibson

    Nicholas Gibson

    Expert Content, Article & Copywriter

    Thailand - Last active: 1 day ago - Portfolio: 4

    I write engaging content and sales-driven copy for some of the web's biggest businesses. Over the last five years, I have: - Written copy for EA Games that increased conversion rates from ~5% to 18.8% for several free-to-play gaming services. - Written copy for one of Europe's leading gaming networks for a $x,xxx,xxx display advertising campaign that produced 100,000+ conversions. - Produced engaging, search-friendly articles and blog posts for travel companies and online marketing agencies that have generated 1,000s of Facebook Likes and comments. - Ghostwritten content for A-list bloggers and online influencers. I take a hands-on approach to research and writing and dive into every project I take on. Let me help you with blogging, content writing, or copywriting for your next project.

    $60.00 /hr
    0 hours
    4.95
  8. Avtar M.

    Avtar M. Agency Contractor

    Advanced Asp.Net, C#, Ajax, MSSQL Developer- CEO of Future Expert Pvt

    India - Last active: 1 day ago - Tests: 12 - Portfolio: 4

    After concluding my bachelor's and master's degrees in Computer Science, I Joined many local and MNC companies like Xeo Software Inc, rising to position of Project Leader. My signature accomplishment was becoming Microsoft Certified Professional Developer. Today, I am CEO of Future Expert Pvt. Ltd., India based software outsourcing company.  My core expertise lies in Microsoft Technologies like ASP.NET, C#, VB.NET, AJAX, Silver Light, SQL-Server, Desktop Application, Windows Mobile Application, Web & Windows Services, etc. We work on highly accepted Industries wide coding standards by following various Design Patterns and OOPS concepts.

    Associated with: Future Expert

    $11.11 /hr
    2,236 hours
    4.96
  9. Aleksey G.

    Aleksey G. Agency Contractor

    Desktop Applications (C++, MFC, QT, C#, .Net), Web (Php, Asp.Net), SQL

    Belarus - Last active: 4 days ago - Tests: 3 - Portfolio: 3

    Desktop application: • C++ developer. MSVC 5.0 - 2015. • WinApi, MFC, Styngray Studio • COM/DCOM componets • Crossplatform applications (QT library) • C#, WinForms, .Net • NSIS installer • Service programming Database: • T-SQL, • Sybase, • MS Sql Server, • Oracle Web Development: • Knowledge of CMS WordPress, HTML, CSS, PHP, JavaScript, MySQL, query; • Front-End Development with CSS and HTML

    Associated with: Ylon

    $27.78 /hr
    374 hours
    4.99
  10. Orchille G.

    Orchille G. Agency Contractor

    Technical Support

    New Zealand - Last active: 1 day ago - Tests: 1

    I am a IT support specialist with 3 years experience, including 5 years as a Technical/Customer service Phone Support and 2 years of Customer Service Supervisor, a role into which I was promoted. I have experienced on deployment support and maintenance desktop, laptop and phone units which includes and operating system, installed software (includes internal applications, software packages and client applications), hardware/Network and related peripherals. I am seeking opportunity to provide IT Realtime Support..

    Associated with: AGENCY

    $22.22 /hr
    5,161 hours
    5.00