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On average, 2 XSL projects are completed every quarter on Upwork.


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XSL Upwork freelancers typically receive a client rating of 4.59.

Last updated: October 1, 2015

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Alexander S.

Alexander S.

PHP/ASP/HTML/CSS/JavaScript/Delphi developer

Ukraine - Tests: 9 - Portfolio: 12

Hi! My objective is: * web-based software development; * quickly working within a team; * spread of learnings in the field of professional software development; * quality, reliability, clearness.

$17.00 /hr
37 hours

Denis Mishin

$11.11 /hr
61 hours

John B.

John B.

Expert LAMP admin, focus on Python and Flask

United States - Tests: 3 - Portfolio: 2

Stanford grad w/ Masters of Information Science (UIUC) and 9+ years building whiz-bang websites, analyzing the heck out of some data, fixing what's broken, and making things that don't break in the first place. Talents: Python (esp. Flask, Django, and SciPy/NumPy), front-end stack [(X|HTML|5), CSS3, javascript (jQuery, backbone, etc.)]; server setup and administration; redis, SQL, mongo; solid understanding of what a user looks for when they look for information, and how to get it to them. Robust support for data management throughout its lifecycle of interest. I can also churn out written content pretty fast, if that's something you need.

67% Job Success
$45.00 /hr
174 hours

John Johnson

John Johnson

Sr. Software Developer

United States - Tests: 9

I have been developing applications, specifically for the Windows platform, for over 15 years. I tend to do more web development and database development these days, but I have written my fair share of desktop applications and Windows services as well. I started out writing VB5/VB6 client/server applications while going to college. After a year or so, I made the switch to ASP & COM (web development). When .NET was released as Beta 1, I was lucky enough to be working for a company that let me spend some time doing a little R&D, and I haven't looked back. I am a guy that attempts to do find the "simplest" way of doing something. I find "over-engineering" an application to be a complete waste of time and resources. When coding, I try to assume that the next developer that will be working on the application will be a "junior" developer. This helps keep the code neat and simple; the architecture the same. I have worn many hats over the years, but tend to thrive when working as a contractor in a telecommute position. I love to work late. I drink a lot of coffee. And, I have a fairly nice home office setup. Thanks for reading. I hope to work with you in the future. - John

$27.78 /hr
11 hours

Sergiy R.

Sergiy R.

Linux System Administrator

Ukraine - Tests: 9 - Portfolio: 1

I am an experienced System Administrator with a wide range of skills, including Linux servers administration, LAMP stack setup, OpenVZ and KVM virtualization, configuring services, working with version control systems and writing system maintenance scripts. I have a hands-on experience with Linux, including Ubuntu, CentOS, Red Hat, Gentoo and Debian distributions. I am able to code in OCaml, C, C++, Ruby (including Ruby on Rails), Bash/Zsh and read Java, Python, Haskell, Perl and Common Lisp programs. My most important virtues are: extreme responsibility, easy communication and attention to details.

100% Job Success
$40.00 /hr
476 hours

Charles P Rubin

Charles P Rubin

CPRcomputing ~ Filemaker Database Programming

United States - Tests: 1 - Portfolio: 1

CPRcomputing provides custom Filemaker Pro, MySQL, PHP web development solutions. If you need a new database, need to update an existing database or share your data using the internet, CPRcomputing can breathe some life into your data. CPRcomputing specializes in developing and maintaining relational filemaker database systems to help automate repetitive office tasks and data processing. We use Filemaker Server Advanced to publish data to the internet and allow secure access for employees and or customers. We strive to increase efficiency through automation saving you both time and money.

$50.00 /hr
66 hours

Zygimantas S.

Zygimantas S.

Software developer

Lithuania - Tests: 1 - Portfolio: 2

Certificated JAVA specialist who has been working as IT software developer, team leader for 12 years in Lithuania, Italy, USA, Scotland, Denmark and South Africa in banking, insurance, robotic systems sectors. Specialist with a big amount of knowledge in IT, banking, insurance sectors, has a lot of experience in web, integration development – JAVA, SAP, HTML, BML, SQL and etc. Specialist who is ready to do everything what is in his power to help employer to make company better and to create the highest quality products. The most striking features of character are accuracy, communicability, responsibility, rightness, punctuality, diligence.

$22.22 /hr
0 hours

Max Chechel

Max Chechel

Backend programmer with NFC experience

Russia - Tests: 1 - Portfolio: 1

Hi, I've been working in IT since 2003. I have worked mostly as a backend programmer and system architect for several e-commerce and mobile commerce startups that are well known in Russia and the post-Soviet space: * * * For these projects I have used PHP, C, Java, MySQL, Linux, Memcached, regular expressions, XSLT, SOAP and many other things. Three years ago I moved into the NFC world and since then I've been developing innovative payment and ticketing NFC services for a start-up company. One service is already in use and allows passengers of Moscow's "AeroExpress" trains to use their PayPass/PayWave bank cards: I developed a distributed system that includes: * Multithreaded servers for each train station that manages dozens of NFC readers and turnstiles and processes transactions in pseudo-realtime mode with delayed transaction authentication. * A central server that provides back office interface for tech support and accountants, collects logs and other information from station servers, and distributes black and white lists of cards across all stations connected to the system. Sometime ago I made a few minor commits to an opensource LibNFC library that made it possible to use it to communicate between a NFC reader and Mifare-enabled USIM cards and dual interface contactless smart cards with mifare functionality. I started to use Ruby as a main programming language in 2008. I should note that my Ruby experience is quite different from a great majority of ruby programmers; I use Ruby not only for Rails but also for communicating with different types of hardware using binary TCP-based protocols or serial ports. Rails are used mostly for creating backoffices (ActiveAdmin) and API web-services.

$18.00 /hr
11 hours

Ravish Pandey

Ravish Pandey

Expert Wordpress | Php | Hybrid HTML5 App Developer

India - Tests: 10 - Portfolio: 14

6+ years PHP & MySQL Experience. I am skilled, hard-working, honest and affordable developer with strong English communication skills -- Core PHP & MySQL based multi-level Web Application development from Scratch -- PSD to HTML5/CSS3/Twitter Bootstrap and WordPress Theme/template -- WP Responsive Dynamic New Theme Development and Customization -- Parent/Child Theme Development from Scratch and Customization -- New Plugin Development and free/premium Customization expert -- Woo-Commerce, All in One SEO, WordPress-SEO by yoast, wp-member -- Genesis Agent Press, List-Category-Post plugin, TheThe Image Slider, etc Open source scripts Customization/Development - Smarty, OpenCart, FiverrScript, PhpProBid, Kubelance, Php Melody - Php POS, Php Motion, CodeIgniter, osCommerce, ndot Groupon - xCart, Prestashop, Pligg CMS, WordPress & Theme Forest templates - Twitter Bootstrap templates and admin panel themes - Web Scraping, Curl, xml, json, Jquery/Ajax scripts customization, etc Payment Gateways - Paypal, , Google Checkout, Moneris, 2Checkout, etc APIs - Yahoo, Bing, City Search, Judy Book, Google, Facebook, etc

75% Job Success
$7.78 /hr
72 hours