Drupal expert at your service

Acquia Certified Developer

Drupal is one of the most used content management systems today. Thanks to many years of experience, I will deliver it to you perfectly configured, without ballast, equipped with the necessary modules and with a custom look theme according to the graphic design. I can also handle customized modules.
Drupal 10

I know Drupal deeply

Drupal Administration
  • I built my first website on Drupal in late 2004 and early 2005. In my many years of experience I have built small websites, medium sized magazines and large portals and e-marketplaces. Thanks to Drupal’s modularity, I am able to build a site that is easy to administer and will grow with your company’s needs.
  • I was the first developer in the Czech Republic to get the Acquia Certified Developer certification for Drupal 7. Later I added the Acquia Certified Site Builder certification for Drupal 8 and Drupal 9.
  • For each project, I create a customized design theme based on a prepared graphic design. I will ensure that your website achieves best results in Google Core Web Vitals, loads fast and is comfortable to navigate.
  • Need a specific solution for which there are no community modules? Creating customized modules has never been an obstacle for me. I can handle linking to other applications, data imports and other challenges.

My Drupal references

Realizace webu OR


Website for suppliers of IT solutions for B2B and public sector. Created in Lesensky.cz agency.

Realizace webu COMAX roofs

COMAX roofs

I built the website of the leading Czech manufacturer of sheet metal roofing COMAX within Lesensky.cz.

Realizace webu ENBRA


A family-owned business with products and solutions for energy savings and heat and water metering. Realized in Lesensky.cz

Realizace webu VKR technologies

VKR technologies

Web presentation of a technology company built in Lesensky.cz agency.

Realizace webu Market Sport

Market Sport

I created a website for a sports marketing agency during my time at Lesensky.cz.

Realizace webu E-shop KODYS.sk

E-shop KODYS.sk

B2B e-shop for Slovak systems and technology integrator. Created by Lesensky.cz.

More references

Examples of Drupal administration

  • Content management
  • Page editing
  • Media management
  • Layout builder
  • Database data views definition
website screenshot
Jan Polzer

Complete websites and
Drupal consulting

I am able to implement any type of website for you with this content management system. I have been working with Drupal since 2005, I also wrote the first Czech book about Drupal. You can find a number of websites I have built on this system in references.

If you are building a website on Drupal on your own, we can arrange for technical supervision, analysis of the solution used or consulting on partial parts of the site or module development.

Drupal has been training other web developers for many years. I would be happy to meet you at one of the training sessions. I will teach you Drupal on the administrative side, introduce you to module development and appearance themes.

Drupal knowledge backed by experience

Since mid-May 2014 I am a certified developer working with Drupal 7 (the first and one of the few in the Czech Republic). The exam and the designation from the creators of Drupal, Acquia Certified Developer, says that its holder is able to cover the entire Drupal, whether it concerns working with administration, as well as developing modules and appearance themes.
In April 2017 I was the first in the Czech Republic to successfully confirm my knowledge of Drupal 8 by passing the certification process for Acquia Certified Site Builder. In December 2020, I successfully completed the same certification for Drupal 9.
I am also an individual member of Drupal Association.

Case studies

LOMAX case study


a website for the largest Czech manufacturer of garage doors. Built on Drupal, among the finalists of the LEMUR 2022 Award. WebTop100 winner 2022.

Read the case study

Awards and Certifications

2nd place in websitescategory, Lemur awards (2021)
3rd place in Freelancer category, Drupal CS Awards (2019)
3× in TOP3, WebTop100 competition (2018, 2022, 2023)
1st place, in the SCIAP Competition, Internet category (2013)
2× placed in Web Excellence Award (2024), as myself and with Lesensky.cz

My books about Drupal

In 2008, I wrote my first book on the Drupal content management system. After four years of working with it. And I remained faithful to it in this direction. With each new Drupal release came a new book. The current one also as an ebook.
Drupal 5/6, detailed guide to creating and managing websites 333 tips and tricks for Drupal Drupal 7, detailed guide to creating and managing websites Drupal 8 – detailed guide to creating and managing websites 333 tips and tricks for Drupal 9

Would you also like to web on Drupal?

We’ll discuss the options, I’ll give you a no-obligation quote for the project

If you are interested in my references, knowledge and offer and would like to collaborate on your project, please contact me. I can help you to realize smaller sites and larger web projects. Occasionally I also collaborate on partial tasks, such as programming a Drupal module or a WordPress plugin.

If we can’t agree on a collaboration, I’ll try to recommend one of my colleagues in the industry.

Jan Polzer