WordPress
- Extensive experience writing custom post types, custom taxonomies, and extensive use of custom metadata and taxonomy term metadata.
- Comfortable reading core code as required
- Comfortable customising 3rd party plugins to suit, or writing custom ones for particular end uses
- Comfortable efficiently customising 3rd party themes, or building themes from standard bases (such as underscores)
- Extensive experience with 3rd party plugins, including:
- Gravity Forms
- Modern Tribe Events Calendar & Events Calendar Pro
- WP Job Manager
- User of WP-CLI command-line scripting environment to bootstrap new sites including SQL database setup, core download and install, case plugin set install, and child them creation
- extensive experience debugging issues in 3rd party code
PHP
- Experience writing custom PHP code in other frameworks (CakePHP, Drupal), including PDF generation, media uploads, email transactions
Javascript
- Experience with jQuery, JS frameworks (backbone.js, react.js) and dependency management (require.js)
- Experience with node.js as a CLI data-processing tool (csv processing before WordPress import)
HTML & CSS
- Experience with responsive layouts, including conversion of non-responsive themes
- User of scss / less to improve efficiency of styling
Adobe products
- User of Adobe Photoshop since v2.2
- Competent in Illustrator
- Clear understanding of compression, image formats
Other technologies
- User of git for version control, including hosted and self-administered solutions
- Comfortable with Linux environments (several self-managed servers)
- Good understanding of core internet technologies (TCP, DNS)
- Comfortable writing integrations with 3rd party APIs (examples are Twitter, Facebook, AirTable, CRMs etc)