Hey there.

I would like to introduce myself.

Currently I'm living in Malta and I'm a self-employed software developer. Originally I'm from Germany. I was born there in 1993 and used to live close to the northernmost city of Flensburg. After finishing school in 2012 I moved to Hamburg where I joined a company called InnoGames GmbH for an apprenticeship as Computer Science Expert within the subject of Software Development. Oh, that's how the Chamber of Commerce calls it, but basically I was training to become a full-stack developer.

I finished the apprenticeship in 2015 and InnoGames offered me to stay and continue working for them as a software developer. So I did until August 2015 when I was hired by a company called Infovations AG - based in Zurich. I moved to Switzerland, worked a little more, then eventually decided to become self-employed in March 2016.

Since then I've been working with numerous customers including InnoGames GmbH, Modix GmbH and UB1st GmbH from Germany as well as Apson KG from Austria.

What I do.

Usually I'm hired by companies to work on web development projects, but I'm also working for end customers. You need a website, a blog or a web application? You can contact me by writing an e-mail to hello@janniklorenzen.de to discuss your idea and get a quote.

Recently I started offering training and consultation services as well. You can see details about these services on the respective pages.


About my skills.

Colored squares indicate the skill level.

  • Advanced
  • Intermediate
  • Beginner

Programming & Scripting Languages

  • PHP
  • JavaScript
  • node.js
  • Java


  • MySQL
  • PostgreSQL


  • Zend 1 & 2
  • Laravel


  • Apache 2
  • nginx
  • Solr


  • HTML & CSS
  • PHPUnit
  • Angular.js
  • jQuery
  • Dojo
  • LESS & Sass


  • git & svn
  • Composer & bower & npm
  • phpStorm & Eclipse

I also possess experience with:

  • Agile development
  • Test-driven development
  • Design patterns
  • Web services with REST/SOAP
  • Linux server environments
  • Linux, Mac OS X, Windows