Profile image of LEnaSIM
Flag of Ukraine Boryspil, Ukraine
Member since December 21, 2014
30 Recommendations


Online Offline
I have over 10 years of experience in PHP (OOP, UML, ORM, TDD - PHPUnit), SVN, Git, MySQL (ADOdb, PDO), HTML5, CSS3 (Bootstrap, Smarty, Twig) and JS (JQuery). My specialties: * Web App Development - development of self-managing systems * E-commerce System, Online Shops, Online Catalogs (Prestashop, OpenCart, WooCommerce) * Blogs, Websites, Portals (Wordpress, CodeIgniter) * Wordpress Custom Themes, Plugins * ERP, CRM Systems * API Integration to Web Services (XML, JSON), Google Map API * Payment Gateway API integration (Prestashop, WooCommerce Custom Gateway) * Website Design (Photoshop) * Mobile Friendly (re)design tasks * Google Speed Score Optimization * Basic Technical SEO Optimization I work alone and work honestly. I'm willing to go the extra mile to complete your projects. I am not afraid to work hard, in fact, I am pleased to work on complex projects. I desire long-term relationships with my clients. Let's start working! Just click the "Hire Me!" button on my profile.
$15 USD/hr
350 reviews
  • 99%Jobs Completed
  • 98%On Budget
  • 98%On Time
  • 19%Repeat Hire Rate

Portfolio Items

Recent Reviews

  • image of Guenther I. wordpress webmaster €856.68 EUR

    “Everything ok very good”

  • image of Craig C. Website Work $101.33 USD

    “Olena was great to work with, Did everything asked and more, will definately use in future for all my wordpress needs. Greet freelancer [24 February, 2020] Olena is great to work with, very helpful and good communicator. I will always use in future for my wordpress work.”

  • image of Yulia B. доработка сайта, внесение доп страницы. и изменение контактных данных €200.00 EUR

    “абсолютно довольна работой. уже не в первый раз Olena помогает мне в сайте вордпресс. Быстро и качественно. без лишних вопросов . Буду обращаться снова и вам советую. отличный мастер! спасибо!!!”

  • image of Richard O. Custom Product Tabs Data Recovery -- 2 $30.00 USD

    “Once again, Olena helped us out of a tricky problem quickly and with the least amount of fuss. I highly recommend her services and will definitely be hiring her again in the future.”

  • image of Jesper A. Project for Olena K. $200.00 USD

    “Did not complete the job.”

  • image of Lennart Multistore lösning Opencart $620.00 USD

    “We have now ended our first Milestone with OLena. She worked with very high competence and service. She also worked fast and answer all questions quickly. We will now enter our second milestone with OLena.”



Sep 2017

Expert PHP/WebDeveloper

PHP programmer

May 2011 - Nov 2017 (6 years)

ERP, CRM systems, creating websites.



1996 - 2001 (5 years)


diploma (2001)

specialist (Harkivs'kij Nacional'nij Universitet im. V.N. Karazina)


documentation of the project


  • Preferred Freelancer Program SLA
  • HTML Level 1
  • US English Level 1
  • WordPress
  • PHP Level 1


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