How to vet a WordPress developer
WordPress developers range from page builder users to engineers who build custom themes, blocks and plugins with proper version control. Clarify what you need, then check real skills: custom block development, theme.json configuration, custom post types and fields, the REST API, WP-CLI and secure coding practices such as escaping output, sanitizing input and using nonces.
Ask how candidates manage plugins and updates, how they deploy changes and whether they ever edit files directly on production servers. Strong developers use Git, staging environments and automated deployments, keep plugins to a minimum and know how to diagnose slow pages, from database queries to caching and image handling.
For headless projects, look for experience with WPGraphQL or the REST API and a frontend framework such as Next.js. Our WordPress vs headless CMS comparison explains when a decoupled setup makes sense and when traditional WordPress serves better. Ask which approach they would recommend for your site and why.
- Builds custom blocks and block themes.
- Writes secure PHP following WordPress coding standards.
- Uses Git, staging and automated deployments.
- Diagnoses performance problems methodically.
- Keeps plugin lists short and well maintained.
- Has experience with headless WordPress where needed.
- Writes clear handover notes for editors and site owners.

