Developer

The Developer will support implementation, enhancement and maintenance of UNEP's web portfolio, focusing on website migrations, Starter Kit rollout, Drupal development, and improved AI-supported search and content discovery. The role involves working with the Web Platforms team and external partners to ensure stable, secure, and maintainable web platforms.

Responsibilities

• Analyse technical requirements and identify appropriate implementation approaches, dependencies and potential risks.
• Develop, maintain and enhance UNEP Drupal websites, including modules, content models, configurations and custom functionality.
• Implement, enhance and maintain reusable templates and components for the corporate website, Starter Kit and other UNEP web platforms.
• Implement technical requirements for migration of child, campaign and project websites to common UNEP templates and technical standards.
• Implement and enhance hybrid or decoupled Drupal functionality using React, Next.js and related technologies where appropriate.
• Develop and maintain APIs and integrations that support content and data exchange between UNEP web platforms and external systems.
• Develop, enhance and optimize search and content-discovery functionality, including OpenSearch, indexing, ranking, relevance configuration and semantic search.
• Implement and improve AI-supported search and content-discovery capabilities to increase relevance, accuracy and user experience, in accordance with approved technical standards and organizational guardrails.
• Develop and maintain multilingual website functionality, including templates, components, CMS translation workflows and related integrations.
• Maintain Drupal core, contributed and custom modules, themes and dependencies, including implementation and testing of security and technical updates.
• Apply Git-based development, code-review, testing and CI/CD deployment workflows.
• Test and troubleshoot website functionality, integrations, performance and deployment issues, including support for major releases and migrations.
• Apply UNEP requirements and accepted web-development standards for security, accessibility, performance, responsive design, interoperability and maintainability.
• Review code and technical implementations and contribute to technical quality assurance across the web portfolio.
• Provide technical input to vendors and other developers working on UNEP web platforms.

Requirements

• An advanced university degree (master’s or equivalent) in computer science, information systems, software engineering, or related field is required.
• A first-level university degree, combined with two (2) additional years of qualifying experience, may be accepted in lieu of an advanced university degree.
• At least two (2) years of professional experience in web development, including substantial experience with PHP and Drupal is required.
• Strong experience with Drupal architecture, themes, modules, templates, configuration, custom functionality and reusable components is required.
• Experience with website migrations and modernization of enterprise web platforms is required.
• Strong experience with HTML5, CSS3, JavaScript and modern JavaScript frameworks, preferably React and Next.js is required.
• Experience with relational databases and with developing and integrating RESTful APIs and other web-platform integrations is required.
• Strong experience with Elasticsearch, OpenSearch or similar enterprise search technologies, including indexing, query configuration, ranking and relevance optimization is required.
• Experience developing or integrating semantic search, AI-supported search or other AI-enabled content-discovery functionality is required.
• Strong knowledge of Git, code review and CI/CD deployment workflows is required.
• Experience applying security, accessibility, performance, responsive design and maintainability standards to web platforms is required.
• Experience troubleshooting complex web-development, integration and deployment issues is required.
• Ability to evaluate and apply AI technologies with appropriate consideration of accuracy, security, performance and responsible use is desirable.
• Demonstrated experience developing and maintaining complex websites or multi-site digital platforms is desirable.
• Ability to document technical systems and communicate technical issues clearly to technical and non-technical colleagues is desirable.
• Experience implementing multilingual websites and CMS-based translation workflows is desirable.
• Ability to work independently and collaboratively in a multicultural and international environment is desirable.

Skills

• Website Development
• PHP
• Drupal Architecture
• Drupal Themes
• Drupal modules
• Drupal Templates
• Drupal Configuration
• Custom Drupal Functionality
• Website Migration
• Enterprise Web Modernization
• HTML5
• CSS3
• JavaScript
• React
• Next.js
• Relational Databases
• RESTful APIs
• Web Platform Integration
• ElasticSearch
• OpenSearch
• Enterprise Search Technologies
• Search Indexing
• Query Configuration
• Search Ranking Optimization
• Semantic Search Development
• AI-supported Search
• Git
• Code Reviews
• CI/CD Deployment
• Web Security Standards
• Web accessibility standards
• Web performance optimization
• Responsive Web Design
• Web Maintainability
• Web Troubleshooting

Languages

English