The Synergy Group AG
Book Consultation
WordPress Engineering

WordPress Solutions

Custom WordPress development with AI-powered operations dashboards. Not page builders — real engineering with REST APIs, custom post types, and modular architecture.

Beyond Themes and Plugins

We treat WordPress as a platform, not a website builder. Every site we build has custom REST endpoints, structured custom post types, modular PHP architecture, and an AI-powered operations dashboard. The result: WordPress sites that behave like real software.

4Production Sites
21+Custom REST Endpoints
11Languages Supported
90+Lighthouse Score

What We Build

Custom Themes

Astra-based child themes with modular template architecture, CSS variables, semantic HTML, accessibility-first design.

Operations Dashboards

Custom WP admin panels for task tracking, CRM, email generation, budget management, lead capture, booking systems, and API spend monitoring.

REST API Integration

Bidirectional integration with external services — payments, email, calendars, CRMs, AI APIs. Properly authenticated, properly cached.

Multilingual Sites

URL-based language routing (/de/, /fr/, /it/), automated translation pipeline (Claude Haiku), gettext .po/.mo workflow. No bloated plugins.

WooCommerce Engineering

Custom checkout flows, subscription billing, QR-Rechnung integration, Stripe payments, automated invoicing.

AI Integration

Claude-powered content generation, email composition, action item extraction, customer support chatbots — wired into your WordPress workflows.

Maintenance & Audits

Productised WP maintenance: security patching, performance tuning, backup verification, vulnerability scanning, monthly audit reports.

Free Website Audit

Get a 20-category professional audit of your current WordPress site — performance, SEO, security, credibility — delivered as a branded PDF.

How We Engineer

Modular by Default

Maximum 500 lines per file. Every module is independently testable. No 5,000-line functions.php. No spaghetti.

Config Registry

Single source of truth for constants, statuses, UI components. Change once, propagate everywhere. No hardcoded magic strings.

Deploy Guardrails

Automated pre-deploy checks: file size limits, duplicate function detection, JS syntax validation, visual QA gates. We catch bugs before they ship.

REST API Deployment

Theme files deployed via authenticated REST endpoint, not SFTP/ZIP uploads. Atomic, reversible, observable.

Live References

  • hillsidesanctuary.pt — Wellness retreat with 21 REST endpoints, 8 custom post types, 9 admin pages, multilingual booking system, AI email hub.
  • mindfulmoneycoaching.online — Coaching platform with quiz integration, Calendly booking, course delivery, archetype-based matching.
  • 101businessinsights.com — Excel template marketplace with 160+ tools, dashboard V2, automated task runner, AI-powered tagging.
  • thesynergygroup.ch — This site. Custom theme, custom dashboard, REST-deployed, 4 languages, built in days.

Need a WordPress Site That Behaves Like Software?

Get a free 20-category audit of your current site, or book a consultation to discuss a custom build.

Get Free Audit → Book Consultation
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