Mark D.

Full-time Drupal development since 2005. 20+ years enterprise experience across Drupal 5-11. Over 100 successful deployments spanning diverse industries and organizational scales. Core Platform Expertise Complete mastery of Drupal architecture evolution: hook systems, Entity API, Field API, Plugin system, Symfony integration, Configuration Management, Twig templating, and render pipeline. Expert knowledge of services, dependency injection, routing, and access control. Proficient with Drush, Composer, and Drupal Console. Local development using DDEV and Docker, and multi-developer orchestrations. Migration & Upgrades Specialized in Drupal 7→10, 8→10, and 9→10 migrations. Expert with migration framework including source, process, and destination plugins. WordPress-to-Drupal conversions. Custom database migrations, content modeling, URL mapping, and SEO preservation strategies. Full-Stack Drupal Development Backend: Custom module development, REST API, JSON:API, service development, batch/queue processing, Form API, AJAX framework. Frontend: Twig templating, custom theming, Sass/CSS3, responsive design, JavaScript/jQuery, ES6+, accessibility (WCAG 2.1 AA), cross-browser compatibility, component-based architecture. Special expertise in Public Sector requirements including USWDS, One Way Systems, and security protocols. Commerce & E-Commerce Drupal Commerce 2.x expertise including product management, order workflows, checkout customization. Payment gateway integration: Stripe, Square, Authnet Pricing, promotions, shipping calculation, tax integration (TaxJar, Avalara). PCI compliance and secure payment handling. Custom product features such as custom calculators, product customizer overlays, Fabric.js, React, etc. CiviCRM Development Complete Drupal and CiviCRM integration including contact management, membership systems, event registration, contribution pages, CiviMail campaigns, and API development. Donor management, fundraising campaigns, and member portals. Domain Access Proficiency in multi-site installations and domain based management including theme switching concepts and prefixed tables. Performance scaling and marketplace concepts. Social Media Integrations Remote orchestrations, custom app development for custom logins and display apps. Performance & Infrastructure Optimization: Page/render caching, Varnish, Redis, Memcached, CDN integration (Cloudflare, Fastly), database tuning, query optimization, asset aggregation, Core Web Vitals. Server Admin: Linux (Ubuntu/CentOS), Apache/Nginx configuration, PHP-FPM tuning, MySQL/MariaDB administration, SSL/TLS, security hardening, backup strategies. Hosting: Pantheon, Acquia, Platform.sh, AWS, custom infrastructure, high-availability configurations, load balancing. SEO & Digital Marketing Technical SEO, XML sitemaps, structured data (JSON-LD, Schema), answer engine optimization, Core Web Vitals, Google Analytics 4, Tag Manager, Search Console integration. Metatag, Pathauto, redirect management. API & Integrations REST API development, JSON:API, GraphQL, OAuth authentication, webhook handling, external API consumption, Guzzle HTTP client, real-time data synchronization. AI & Automation Claude API integration, AI workflow automation, prompt engineering, intelligent content processing, natural language applications, automation orchestration. Development Practices Git workflows, Claude Code, CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions), Docker/DDEV/Lando, PHPUnit testing, coding standards (PHPCS), Xdebug profiling, documentation. Additional Competencies Media Management Systems - Content Moderation Workflows - Drupal, Wordpress, Shopify Project Management - Team Orchestrations and Systems Development Technical Training - Custom Seminars and Training Systems Camtasia Video Production - Production Video - AI Integration Custom Explainer Videos - DOODLY and VOOMLY Make Orchestrations and Scenarios - Custom Workflows and Claude API Integrations Zoho apps - Certified ZOHO Development Shopify development - Graphql. Custom LIQUID, Theme Customizations, Advanced Webhooks and API Implementation - AI, REST, JSON Zapier configurations - Advanced Implementations