Top Upwork Freelancers

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  1. Gabor Gutyan

    Gabor Gutyan

    Back- & Front-end up my sleeve

    Hungary - Last active: 2 months ago

    For the past five years I've been taking part in the design and development of custom ERP applications as both development lead (responsible for coordinating projects, supervising development team, keeping deadlines, etc) and hands-on developer (back- and front-end, database design and optimization, etc.). Technologies involved: PHP5, MySQL, Javascript, jQuery, AJAX, AngularJS, HTML5, CSS3, Objected-Oriented Design, MVC, Agile, TDD, Selenium, Automated Testing, Git, Responsive and Adaptive design, Mobile ready design, Photoshop/GIMP, Illustrator/Inkscape I'm primarily looking for part-time and occasional projects, regardless of depth and complexity - anything within the above skillset would interest me, but if any relevant technologies are required, I'm also open to hear about what you have to offer! Looking forward to hearing from You.

    $35.00 /hr
    0 hours
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  2. Jordi S.

    Jordi S.

    Freelance System Administrator

    Spain - Last active: 02/02/2014 - Tests: 7

    System administrator of more than 30 Linux machines - specialized in daily systems maintenance of RedHat Enterprise Linux, CentOS and derivatives. Including tasks are patching and updating, developing, installing and maintaining utility programs/shell scripts to manage application start, stop, end-of-day, monitoring and failure/recovery. Pretty much aware of all typical UNIX/Linux services, especially specialized in Samba, Sendmail, Dovecot, Apache, Perl, ProFTPD, NTP, OpenSSH, MailScanner, Squid, SquirrelMail, SPF, Roundcubemail, Milter-Greylist, Bind, Fail2ban, NFS, NetAtalk, etc. Very familiarized with HP ProLiant series and HP system management software. Perl and C system programmer - please, see 'Monitorix' at http://www.monitorix.org a pure Perl monitoring solution, see also 'Fiwix' at http://www.fiwix.org a UNIX/Linux-like hobby operating system kernel as a reference. I also work with PHP (Ncurses), Perl and Shell scripting for daily system administration. I'm driving my own GNU/Linux service company at http://www.fibranet.cat and I'm happy to provide a wide range of professional services. I also have experience embedding GNU/Linux systems on a different x86 and ARM devices for vertical rock-solid tasks.

    $23.33 /hr
    0 hours
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  3. Kristopher Matney

    Kristopher Matney

    Damn Good .Net Developer

    United States - Last active: 06/02/2014 - Tests: 3 - Portfolio: 1

    15+ years of programming experience in multiple languages. The last 12 years or so have been focused on Web Development using ASP.Net (VB and C#), JavaScript, and SQL in the Microsoft Visual Studio environment. An adept problem solver and critical thinker residing in the greater Boston area, I work efficiently and communicate effectively. I believe in delivering only quality, flexible, maintainable code to my clients. Software development and solution architecting, specializing in but not restricted to - Requirements Gathering, C#.Net, VB.Net, SQL server, database design, Silverlight, AJAX, multi-tier architecture, web services, WCF, JavaScript, PHP, and Windows Forms. Past deliverables include... - company intranet web applications - reporting system - scraping engine - invoicing system - company utilization tool - online corporate directory - corporate web sites

    $55.56 /hr
    0 hours
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  4. Christopher Caballero

    Christopher Caballero

    IT / Technical Computer software

    Philippines - Last active: 08/24/2014 - Tests: 5 - Portfolio: 2

    Thank you for viewing my profile! I am a detailed and thorough professional with over 7 years of IT hardware / software experience. I specialize in delivering quality services with respect for strict deadlines and high expectations on projects. I am equipped with a dedicated home office complete with a computer and a reliable internet connection. I provide creative and detailed designs based on mock ups by using jQuery, HTML/CSS, Bootstrap. I excel at working under tight deadlines with strict expectations. Expertise: Website replication Bootsstrap jQuery HTML CSS VB , VB.net C#, ASP.net PhP MySQL I may have a lot of questions before we start a project but it is the key success on a project output. I am currently working with app.certain.com as an L1 agent so I am available around 7pm PST, or you can skype me anytime at ccaballero.certain.

    $12.22 /hr
    5 hours
    0.00
  5. Evgeniya Vasilyeva

    Evgeniya Vasilyeva

    Media Content Analyst

    Russia - Last active: 01/28/2014

    - inspect provided media content for the quality, notably: image sharpness, accurate exposure, the lack of color noise and software filters, and the availability of similar images; - measure the value of provided media content, whether an image corresponds to conventional aesthetic norms and is in high demand in the micro stock market.

    $10.00 /hr
    0 hours
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  6. Yaroslav Mateyko

    Yaroslav Mateyko

    ANSI C/Lua/PHP Developer

    Ukraine - Last active: 6 months ago - Tests: 1

    First things first, so: I'm a C-developer, it's my primary skill. I have more than 6 years of software development, generally web-oriented, large-scale applications. I love to develop robust, scalable solutions. I've studied different methods of data storage and processing. Algorithms, data structures, binary trees, b-trees, hash algorithms such as linear hashing of Lytvyn and dynamically extensible hashing, all this helped me to understand more deeply the structure of data storage systems and a hardware layer impact for such systems. I'm a Vim-er. I'm not afraid of the command shell and I know how to write, compile, link and debug my applications in several environments including Windows / Mac OS X / Linux using my sweet ANSI C compiler. And I love Lua :) Additional Skills: * Advanced knowledge level of Lua VM internals, I have implemented next modules for Lua VM: libsocket (full support of TCP and UDP, fully transparent IPv4 and IPv6 agnostic code), libutil (for cryptographic digests as SHA256, CRC32 and other utils), libjson (serialization and deserialization of Lua internal data structures), libdb (high performance key-value database engine). All modules are cross-platform and can be compiled for Windows, Linux and Mac OS X. * Deep knowledge level of technics for writing high performance custom made servers and network services. Know the difference between sockets polling (event-driven) and threading and then to use one or another. * Good knowledge level of SQL (SQLite, MySQL, PostgreSQL) and deep knowledge level in writing of custom non-relational high performance database engines. Stack Overflow Careers: http://careers.stackoverflow.com/my Willing to relocate.

    $10.00 /hr
    0 hours
    0.00
  7. Kirill Suboch

    Kirill Suboch

    Python Developer

    Russia - Last active: 10/22/2014 - Tests: 2

    Hello, my name is Suboch Kirill and I'm a Python Developer. I started my Developer career in 2008 joining the team which developed document management system for my university. Afterwards in 2010 I took a job in design bureau and used my developer skills to automate design and engineering calculations in heavy machinery and engine construction. Since 2013 I became a Python developer in geo information systems (UI and Data Analysis modules). My strong points are creativeness and troubleshooting ability. I believe that every collaboration must be productive.

    $15.00 /hr
    0 hours
    0.00
  8. Andrey Belkin

    Andrey Belkin

    Expert Software Developer with Java and Oracle experience

    Russia - Last active: 6 months ago - Tests: 4

    10+ years of experience in enterprise software development for the last Russian telecommunication companies and Russian goverment. For the last years I've worked for Rostelecom (http://rt.ru) and a lot of other telecommunication companies in Russia. I was the instructor for the Oracle Administration Workshop course, and was the lead developer and the software architect for the one of the most secret organization in Russia: Prosecutor General's Office http://genproc.gov.ru/ (http://crimestat.ru - the public part of our work) and Russian Home Office. Our customers were very demanding, didn't know just simple things in IT, but we found the right way to help them. I like 'Unix way', but in our last projects we have used all the .NET and Microsoft server technologies. If you want to get expertise in enterprise software development, and get the right way to solve problems, I'll help you.

    $40.00 /hr
    0 hours
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  9. Paul Donnelly

    Paul Donnelly

    VBA developer

    Ireland - Last active: 12/18/2014 - Tests: 2 - Portfolio: 1

    Business Analyst with 7 years experience in designing and delivering custom and third party software projects for some of Ireland\'s largest energy trading organisations. I have a proven track record of providing high quality deliverables, and have a wealth of experience working with developers and business users to deliver powerful and intuitive trading software.

    $27.78 /hr
    0 hours
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  10. Christopher C.

    Christopher C.

    Mr.

    United States - Last active: 11/24/2013 - Tests: 1

    I have worked in the software development field for over 13 years. I have a Bachelors of Science in Computer Science from FSU. I am well versed in a wide range of programming languages and technologies. I have developed applications for both windows and mac operating systems as well as applications for iOS, Android, Windows 8, and the web.

    $133.33 /hr
    0 hours
    0.00