Janusz Paśkiewicz, Web Development Developer in Rzeszow, Poland
Janusz Paśkiewicz

Web Development Developer in Rzeszow, Poland

Member since October 25, 2018
With a master's degree in computer engineering, Janusz is a senior and lead web application developer with a Magento 2 expert certification and more than a decade of professional experience. He is a quick learner with a flexible and enthusiastic personality and can work on his own initiative or in a team. Janusz is always hungry to learn more and loves challenges. Currently, he is focused on the Magento platform.
Janusz is now available for hire




Rzeszow, Poland



Preferred Environment


The most amazing...

...thing I've developed is a lottery portal that is the second most popular site in the industry in Poland.


  • eCommerce CTO

    2019 - PRESENT
    Sintra Consulting Poland
    • Oversaw the eCommerce development team that was working on Magento projects.
    • Supported project development and troubleshot issues.
    • Fostered the expansion of the team's technical skillset and the adaptation of new technologies and solutions.
    Technologies: Magento
  • Senior Magento Developer | Team Leader

    2014 - 2019
    • Led the Magento development team.
    • Created many different features, mainly involving the Magento back end.
    • Contributed to many integrations with microservices around Magento.
    • Supported G2A whenever necessary as it is a jam-packed website, so there were many performance challenges to overcome.
    Technologies: RabbitMQ, Solr, Node.js, MongoDB, MySQL, Magento, PHP 7
  • Senior PHP Developer

    2010 - 2014
    PGS Software
    • Worked for a software house (an outsourcing company) as a PHP web developer—working closely with various clients.
    • Migrated a client's shopping cart based on an OXID old engine to a completely new OXID engine; it involved porting many custom modules.
    • Provided long-term support of a CRM system; this system was created with a custom PHP framework, so it was necessary to create many new features and fix existing bugs.
    Technologies: OXID, Symfony, Zend Framework, jQuery, JavaScript, CSS, HTML, MySQL, PHP
  • Technical Architect | Lead Developer

    2008 - 2010
    • Oversaw and managed various projects.
    • Created solutions from scratch and modified existing websites and eCommerce solutions.
    • Architected with Magento 0.8 Beta.
    • Ensured that the projects met high SEO standards as this was a mainly SEO company.
    Technologies: osCommerce, X-Cart, CubeCart, Magento, jQuery, JavaScript, MySQL, PHP
  • Java and Delphi Programmer

    2006 - 2007
    • Contributed to the build of a data warehouse for a big insurance company.
    • Programmed in Delphi and Java.
    • Created Oracle packages and procedures in PL and SQL.
    • Identified and resolved bugs or errors reported by the client in the current release of the program.
    Technologies: PL/SQL, Oracle, Delphi, Java


  • G2A.com Website

    I created many features on G2A.com as a Magento 1 full-stack developer during my 5-year full-time position there. For example, I worked as the lead developer who implemented the option of selling electronics in the marketplace.

  • Maintenance of Magento Websites

    I developed a number of improvements and bug fixes for a family of websites that I was maintaining in 2011-2012:

    • http://viviscal.com
    • http://viviscal.co.uk
    • http://viviscal.es
    • http://viviscal.pt
    • http://emjoi.ie
    • http://lifes2good.pt

  • Portal for Lottery Games Fans

    In 2004, I created a portal for enthusiastic fans of Polish lottery games. Over time, the portal became the most popular independent website in this category. Currently, it has about 100,000+ visits daily and 10+ million page views a month.

    I am still the owner and the only developer and admin of the portal.

  • Migration from Magento 1.9 into Magento 2.4

    I handled the full migration of a very successful eCommerce shop from Magento 1 to the newest Magento 2.4. I did the whole migration alone as a freelancer, starting with preparing the new hosting server, continuing with data migration, and handling all the required third-party modules' customization.


  • Languages

    PHP 5, HTML5, PHP 7, JavaScript, CSS, Java, PHP, HTML, Delphi
  • Libraries/APIs

    jQuery, REST APIs, Node.js
  • Tools

    Magento Modules, NGINX, Jira, Git, RabbitMQ, Solr, PhpStorm, CubeCart
  • Platforms

    New Relic, Magento 1, Magento, Magento 2, Magento Extension Development, Magento API, Magento Enterprise, X-Cart, osCommerce, Oracle, Linux
  • Storage

    MySQL, MongoDB, Redis, PL/SQL
  • Other

    Web Development, eCommerce, APIs, OXID, Computer Engineering, Leadership Development, Websites
  • Frameworks

    Symfony, CakePHP, Zend Framework


  • Master's Degree in Computer Engineering
    2001 - 2006
    Politechnika Rzeszowska - Rzeszów, Poland


  • Adobe Certified Expert — Magento Commerce Developer
  • Magento 2 Professional Developer
    Magento, Inc.

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