Konrad #Full Stack

A Little Bit About Me

PHP (Symfony), JavaScript (React), SQL developer.

Boasting over a decade of experience as a Full Stack Web Developer,
I am proficient in PHP, MySQL, and JavaScript. Next in line are HTML and CSS.

So as you can see, I specialize more in backend development.

If you need my knowledge and experience feel welcome to contact me.


  • PHP
  • JavaScript
  • SQL
  • Design
  • Linux administration
  • DevOps (still learning)
  • Making a burrito

Experience. Shortened.

  • Feb 2023 - present: SysRq (owner)

    Working for various entities. Projects ranging from small to large.
    Mainly backend (PHP + Symfony, MySQL/MariaDB), with frontend comprising about 15%
  • Jun 2022 - Jan 2023: Home.pl

    Working in the Innovation Lab, handling various tasks.

  • Jan 2022 - Jun 2022: Freelancing

  • 2011 - 2021: Various companies

    Managing a group of developers and designers in Grupa Alias company.
    Development of a CMS project, which in turn was used in various projects, small and big.

    Collaborated on a system for managing domains and clients, for one of the leaders in the domain registry industry in Poland (Agnat (domena.pl), 5th position).

    Participated in a CRM project for a company serving around 100.000 clients (Souvre.com).
    Technology stack: PHP, MariaDB/MySQL, JS.

    As a freelancer: Lots of small and medium projects
    Most based on PHP and MariaDB/MySql. Two based on NodeJS.
    Successfully completed numerous small and medium-sized projects, primarily based on PHP and MariaDB/MySQL. Additionally, worked on one project based on NodeJS. Notably, refactored a large PHP, MariaDB, and Windows/Linux server-based project for Mediart. Achievements included converting procedural JavaScript to full OOP, optimizing database queries (reducing query time from 1 minute to 2 seconds), and decoupling dependencies in PHP/NodeJS.