WordPress theme developer

Since I started working with WordPress in 2009, I’ve successfully completed countless projects, mostly theme creation/customization work.

If you want to meet me “in person”, make sure you check my interview with Matteo Duò, recorded for our “Changing lives” series!

A bit more…

  • Working with WordPress since 2009.
  • WordPress core contributor (as of version 4.4.)
  • Completed hundreds of site migrations
  • Modified and created hundreds of WordPress themes
  • Familiar with mailing systems (MailChimp, etc)
  • Expert in multilingual WordPress websites (WMPL)
  • Fluency in English, both in written and spoken communication
  • Check my bbird.me blog for quick WordPress theme development tips, or my Codepen profile

When can you reach me?

I live in UTC+1 time zone (Zagreb). I am reachable from 8 am – 11 pm UTC+1, which means that I am available in real-time for clients from all USA, European and Australian/Asian time zones.

In what language?

English, Croatian, Serbian, Bosnian, Montenegrinan and German (learning of the latter in progress so don’t mind grammar mistakes:) )

Where am I?

Born and living in beautiful and even more beautiful Croatia. I live in the northern part of the country, in Zagorje, somewhere among these hills, very close to Ivanščica mountain.


I hold master of informatics education degree, obtained at Faculty of Organization and Informatics

In my free time, I…

  • Run races, competing on the track on national level.
  • Read novels, very passionate about 19th century novels (Russian, German, French…).
  • Listen to some music.

Customer reviews

Bruno Kos 2018-01-17T21:37:22Z 5
Project rating:

Excellent, excellent, excellent. Extremely patient, absolutely knows what he is doing, has good suggestions, even researched plugins and other things for me. All around did a wonderful job. Very friendly, and got work done at a good pace. He even did some things for me that I am sure were not part of the project but he did not complain or say no to me once. Super job, super guy A+

John Mattar
Bruno Kos 2018-01-02T09:57:44Z 5
Project rating:

He was amazing and got the job done extremely quickly.

Richard Fagbolagun
Bruno Kos 2017-11-18T16:13:57Z 5
Project rating:

Bruno is the man! I'm a repeat customer and he is efficient, flexible and thorough.

Joe Rice
Bruno Kos 2018-02-19T11:26:18Z 5
Project rating:

Very quick, no fuss, job completed exactly as required.

Pete Rawlings
Bruno Kos 2018-02-17T13:38:27Z 5
Project rating:

Bruno not only was responsive and efficient, but he helped to tackle some unusual and unforeseen issues in a website transfer.

Mark Woodruff
Bruno Kos 2018-02-17T12:50:32Z 5
Project rating:

Reactive and perfect!

Maxime Bellet
Bruno Kos 2018-02-16T18:21:26Z 5
Project rating:

Geoey Cook
Bruno Kos 2018-02-08T18:21:21Z 5
Project rating:

Fast and Fixed My Problem, Thanks!

Ashley Fiumara
Bruno Kos 2018-02-06T11:36:57Z 5
Project rating:

Richard Fagbolagun
Bruno Kos 2018-02-06T04:32:17Z 5
Project rating:

It is a pleasure to work with this developer!

Trevor D
Bruno Kos 2018-02-02T21:57:11Z 5
Project rating:

Marcia Kadanoff
Bruno Kos 2018-01-29T15:49:19Z 5
Project rating:

Fast, understands what I asked for, went the extra mile even when he was sick. Wrote concise CSS and html code for me that surpassed my expectations.

Marcia Kadanoff
Bruno Kos 2018-01-25T15:15:58Z 5
Project rating:

This guy is above and beyond. Was patient, worked with me very patiently, had amazing suggestions and ideas. He was simply fantastic, I don't know what else to say! Thanks you so very much Bruno, I am sure I will be back!

John Mattar
Bruno Kos 2018-01-11T16:34:50Z 5
Project rating:

Sean Morrison
Bruno Kos 2018-01-11T15:54:53Z 5
Project rating:

Johnny Farr