Joona Viertola Notebook


This website is meant to be a collection of my notes of complex subjects. It's easier to check out my own notes from here, forward it to my co-workers and advertise my knowledge.


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.

I'm located at Finland's capital Helsinki.

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


  • 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) 2011-2015
  • WinNova Länsirannikon Koulutus Oy Ltd Associate’s Degree / Information Technology 2008-2011


  • Certified Scrum Master ScrumAlliance
  • Certified SAFe® 4 Agilist Scaled Agile Inc.