Senior WordPress Developer (Freelance)

Project: Agency Catalog platform rebuild (data-driven agency discovery platform)

We are looking for an experienced freelance WordPress developer to support the development and scaling of our Agency Catalog — a platform that helps businesses discover, evaluate, and connect with digital marketing agencies.

The current catalog contains 700+ agency listings across 5 languages and will be rebuilt as a standalone platform on a subdomain, evolving into a data-driven, SEO-first marketplace built on structured data and scalable architecture.

The new platform will include

• Frontend dashboards for agency owners without wp-admin access
• Self-service profile editing and moderation
• Multi-level AJAX filtering with SEO-friendly URLs
• Agency comparison
• Async rating system integrated with an external API
• Full multilingual data and SEO migration

What you’ll do

• Review the existing codebase and propose the target architecture
• Build custom WordPress plugins and frontend functionality
• Implement responsive layouts based on Figma designs
• Build user dashboards, roles, permissions, and ownership logic
• Implement filters, comparison, multilingual routing, and API workflows
• Test critical functionality and support the production launch

What we’re looking for

• 4+ years of custom WordPress development
• Strong PHP and object-oriented programming skills
• Strong knowledge of CPTs, taxonomies, users, roles, capabilities, WP_Query, and WordPress APIs
• Advanced ACF Pro experience
• Strong HTML, CSS, and JavaScript skills
• Experience implementing responsive Figma designs
• Experience building frontend dashboards and custom REST API endpoints
• Strong understanding of WordPress security, permissions, validation, sanitization, and escaping
• Experience with Polylang or WPML
• Experience building AJAX filters with URL synchronization
• Experience integrating external APIs and handling background jobs
• Strong understanding of frontend performance and Core Web Vitals
• Experience migrating WordPress content, taxonomies, media, translations, SEO metadata, and redirects
• Strong Git skills and comfort with pull requests and code reviews

• There is no dedicated QA engineer, so testing and production readiness are part of the developer’s responsibility.
• Nice to have

• Composer, namespaces, and autoloading
• Tailwind CSS
• ACF JSON sync
• Action Scheduler
• Experience with retries, idempotency, and failure logging
• WP-CLI and custom migration commands
• PHPUnit, Playwright, or Cypress
• Redis or persistent object caching
• Elasticsearch, OpenSearch, or Algolia
• Experience with multilingual directories or marketplaces