This page lists some of my computer skills along with the (self-assessed) levels of proficiency (◼ - basic, ◼◼ - intermediate, ◼◼◼ - advanced)

Coding

When programming I mostly rely on open source software. My stack for coding on Linux consists of git, vim and tmux.

Frontend

Skill Level Details
HTML ◼◼ Extensive use since 20+ years; mostly using abstraction layers + template engines in 2023
CSS ◼◼ Extensive use since 20+ years; some experience with bootstrap
Javascript Light use in 20+ years; Some experience with jquery, vue.js

Coding/Backend

Skill Level Details
PHP ◼◼ Extensive use since PHP3; Since 2011 mostly used Yii framework
Python ◼◼ Used since ~8 years; mostly for data analysis, testing (business) and APIs (private); Popular modules used include Flask and pytest
SQL Extensive use since 20+ years (MySQL); Most database access done through abstraction layers in 2023

Desktop software / SAAS

Skill Level Details
MS Excel/Sheets ◼◼ Extensive use of MS Excel / Google sheets in both business and private contexts
Confluence ◼◼◼ Used in business context as product owner for documentation
JIRA ◼◼◼ Used in business context as product owner
GIMP/Photoshop  

Other software (private use)

Some software that is not relevant to programming or development, but may still be useful to have skills at includes the following:

App Level Details
Kdenlive Video editing (non-commercial/private) of varying complexity
JOSM Openstreetmap contributions during travels