Joona Viertola

Learning journal

About me, Joona Viertola

I'm passionate website developer focused to JavaScript and NodeJS development. Last four years in business, I've been focusing into front-end development, but occasionally also been diving into fullstack working.

This website was build for and idea to keep learning notes somewhere. At the same time these may help others and advertise me. Primary value of most content is that they are written for myself. So there is no long step-by-step manuals. More like a easy to pick notes. Another reason is writing things down and sharing them for my work mates.

I'm located at Finland's capital Helsinki.

You can see more or contact me from next web communities:


Job experience

  • Houston Inc. - Senior Consultant
    Feb 2020 - Present
  • Houston Inc. - Consultant
    Mar 2018 - Jan 2020
  • Houston Inc. - Consultant Trainee
    Oct 2017 - Feb 2018
  • Korpimedia Oy - Front-end developer
    May 2017 - Jul 2017
  • Druid Oy - Drupal & Full stack developer
    Jul 2015 - Apr 2017
  • Web developer - Academic Work Finland
    Jan 2015 - Jun 2015


  • HAAGA-HELIA University of Applied Sciences
    Bachelor of Business Administration (BBA)
  • WinNova Länsirannikon Koulutus Oy Ltd
    Associate’s Degree / Information Technology


  • Certified Scrum Master
    Mar 2015 - Present
  • Certified SAFe® 4 Agilist
    Scaled Agile Inc.
    Mac 2019 - 2020