Senior Full Stack Drupal Engineer
360training
Software Engineering
Heredia Province, Heredia, Costa Rica
Posted on Mar 13, 2026
| Position: Senior Full Stack Drupal Engineer | ||
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| Job Id: 491 | ||
| # of Openings: 1 | ||
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| 360training.com is a rapidly growing leader in online training and certification across a wide range of industries and professions. 360training.com provides customers with the regulated training they need to get and keep jobs they want. Over the years, we have continued to grow our expansive library of regulatory-approved training courses with new content suited for today’s modern workforce. By offering these courses online, all 360training.com users experience the convenience and flexibility of earning their certifications in their own time, from anywhere in the world. At 360training.com, we promote a culture of excellence centered around our two core values: Deliver Results and Do the Right Thing. That focus fosters the success of our employees, while maintaining a team-centric environment which inspires them to do their absolute best. One thing our associates get to experience is the ability to make an impact on day one of working here. Statutory benefits, medical insurance, vacation days, and additional paid time off are provided. We also offer opportunities for learning and growth, along with a comprehensive employee engagement and wellness program. Job Title We are seeking a highly experienced Senior Full Stack Drupal Engineer with deep expertise in traditional Drupal architecture (custom modules + Twig theming) and complex multisite enterprise environments. The ideal candidate brings 7+ years of Drupal experience, strong backend architecture skills, advanced custom module development, and proven success optimizing high-traffic, multi-brand platforms built on a shared codebase. This role requires ownership of technical architecture, leadership in peer code reviews, and hands-on performance optimization across multiple sites within a unified Drupal 11 ecosystem. You will design, build, and maintain enterprise-grade Drupal 11 applications across a complex multisite architecture supporting multiple brands and verticals. The position combines backend engineering, frontend theming, and technical leadership while ensuring scalability, security, performance, and maintainability. Responsibilities Multisite Architecture & Platform Engineering • Architect and maintain complex Drupal 11 multisite • Manage shared codebases with site-specific overrides • Implement configuration strategies (Config Split, Config Ignore, environment overrides) • Prevent cross-site configuration conflicts and dependency issues • Support deployment workflows across dev, testing, and production environments Advanced Custom Module Development • Build and maintain enterprise-level custom modules following Drupal 11 best practices • Develop custom plugins, services, event subscribers, REST resources, and controllers • Implement cron jobs, queue workers, batch operations, and background processes • Develop REST/JSON:API integrations with external systems • Design complex content models (Content Types, Paragraphs, Taxonomies, Media relationships) • Maintain strict adherence to Drupal coding standards and OOP principles Frontend Development (Traditional Drupal Theming) • Build and maintain custom Twig-based themes • Implement preprocess functions, theme hooks, and template overrides • Develop responsive, accessible (WCAG-compliant) interfaces using HTML5, SCSS, and JavaScript (ES6+) • Optimize asset libraries, aggregation, and lazy loading • Improve Core Web Vitals and frontend performance Enterprise Performance Optimization • Analyze and optimize database queries, entity loading, and Views performance • Implement advanced caching strategies: • Optimize Composer autoloading and module loading performance • Conduct performance audits and load testing • Reduce server resource consumption across multisite infrastructure Peer Code Reviews & Technical Leadership • Conduct structured peer code reviews ensuring:
DevOps & Deployment • Maintain configuration synchronization strategies • Apply and maintain custom patches for contrib modules • Write and maintain Drush commands for automation • Work within Git-based version control and CI/CD pipelines • Experience with Apache, Nginx Qualifications • 7+ years of Drupal development experience • Strong hands-on experience with Drupal 9/10/11 • Proven experience managing complex multisite architectures • Expert-level custom module development • Strong PHP 8+ (OOP, Symfony components, Dependency Injection) • Deep knowledge of: • Drupal Hooks & Events system • Entity API, Form API, Plugin API • Configuration Management • Caching systems • Experience with MySQL • Strong Git workflow experience • Demonstrated performance optimization expertise • Hands-on experience with AI-assisted development tools Preferred Experience • Enterprise-level Drupal platforms • High-traffic website optimization • Drupal Commerce integration • Automated testing (PHPUnit, Behat, Cypress) • AI experimentation/implementation in engineering workflows Technical Skills Summary Backend: PHP 8+, Drupal 11, MySQL/PostgreSQL Frontend: Twig, HTML5, SCSS, JavaScript (ES6+) Architecture: Multisite, Config Management, Performance Optimization Tools: Composer, Drush, Git, CI/CD, Copilot Soft Skills • Strong architectural thinking and analytical skills • Ability to mentor and lead technical initiatives • Excellent written and verbal communication • Detail-oriented with a focus on scalable solutions • Comfortable working in Agile/Sprint-based teams | ||
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