Petter Envall


The closest thing I have to a CV right now.


Web development consultant at Mejsla
Web developer at SBAB
Web developer at Svenska Handelsbanken
Web developer at Ping Pong AB
Web Programming, Java, C++ C#, PHP - Gotland University
C++ - Uppsala University
Driver and traffic controller at Stockholm tramways
Java, databases, Pascal, logic - Department of Computer and Systems Sciences, Stockholm University
Jazz- and pedagogic studies - Royal College of Music, Stockholm
Jazz studies - Folk Colleges of Hemse and Lunnevad
History of Ideas - Stockholm University
Musicology - Stockholm University
Musical Military Service ("Arméns musikpluton")
Music Programme - Södra Latin High School
Natural Science Programme - Tumba High School
Playing saxophone
Programming 6501 assembly and Basic on the Commodore 64

In the beginning there was code

I have been programming since I was eleven or twelwe years old. First, Commodore 64 and ZX Spectrum BASIC – then moving to 6501 assembly. Later, there were various other BASIC dialects as well as Pascal and Perl, C/C++, Java, JavaScript, Ruby, Python and PHP.


After finishing the high school Natural Science Programme, my saxomophonic interest had escalated to the point where I played (jazz- and other music) a lot. I even graduated with a second high school programme which focused on music. This was my thing now…

After jazz- and pedagogic studies at the Royal College of Music in Stockholm, I worked as a musician and a teacher in (jazz/pop/rock) improvisation and ensemble playing.

Cut my hair, got a job

After a while, I joined Stockholm Tramways, where I drove trains and also worked as a traffic supervisor for the tramway system. This lasted about 5 years. Still playing a lot of music, but I also did more and more of programming…


After that, I worked over 10 years at Ping Pong AB as a full stack web developer. Day to day work involved a lot of Java, jsp, PostgreSQL, CSS, JavaScript and more. This period started before the so called AJAX revolution, mind you! I have seen things…

Moving on

At Svenska Handelsbanken I worked for almost 4 years, and did (among other things) front end work for the Internet banking services and internal services. “Front end” in this case meant using a base system of Custom Elements together with things like React.js, TypeScript, CSS (and friends) to build working, useful and usable applications to be consumed by web clients. As “system responsible” for a few systems there, I also managed build- and release processes (including testing) and also verifications (test and prod), as well as being the main contact person for those applications.

More web

My next job was at SBAB - yay! for more web development in the financial sector, which is an important part of our society. The duties were (once again) not strictly front end, which felt inspiring; I like the full stack. SBAB offered a really nice working environment, lovely co-workers and a generally helpful atmosphere, which I appreciated a lot.

Consultant work

Moving on, I started working as a consultant at Mejsla. Please get in touch to hire high quality web development consultants!

What else

In my spare time I have been focusing on JavaScript and node.js (and more recently, Deno), but also done work in PHP and (way back in time) Ruby on Rails.

I keep myself updated about what is happening in the web development world by following and interacting with some interesting people via twitter, following mailing lists like ES-discuss (for future versions of JavaScript) as well as participating in the user group sthlmjs and going to conferences like jsconf.eu and Jfokus now and then.