Web Developer – Drupal & AI Search Specialist

About the role

The United Nations Environment Programme (UNEP) is modernising its web ecosystem and seeks a skilled Web Developer to support website migrations, Drupal development and AI‑enhanced search across its corporate and child sites.

Key responsibilities

• Develop, maintain and enhance UNEP Drupal websites, including custom modules, themes and configurations.
• Implement reusable templates and components for the UNEP Starter Kit and other platforms.
• Migrate child, campaign and project sites to common UNEP standards.
• Build and maintain APIs and integrations for content exchange.
• Design, optimise and extend OpenSearch/Elasticsearch‑based search and semantic/AI‑supported discovery.
• Implement multilingual functionality and translation workflows.
• Apply Git‑based development, code review, CI/CD pipelines and security/accessibility standards.

Required profile

• Advanced degree in Computer Science or related field (or equivalent experience).
• Minimum two years of professional web development experience, primarily with PHP and Drupal.
• Proven experience in website migrations and enterprise web platform modernisation.
• Strong knowledge of HTML5, CSS3, JavaScript and modern frameworks such as React and Next.js.
• Fluency in English; ability to work in a multicultural, international environment.

Required skills

• PHP, Drupal architecture, modules, themes, configuration.
• React, Next.js, JavaScript (ES6+).
• HTML5, CSS3.
• RESTful API design and integration.
• Elasticsearch/OpenSearch, indexing, ranking and relevance tuning.
• AI‑supported search, semantic search concepts.
• Git, code review, CI/CD workflows.
• Multilingual website implementation and CMS translation workflows.