OBJECTIVE OF THE OFFICE/DEPARTMENT

This is a requisition for employment at the reputed company (PAHO)/Regional Office of the World Health Organization (WHO)

Contractual Agreement:

Job Posting:

Closing Date:

Primary Location:

Organization:

Schedule:

PURPOSE OF CONSULTANCY

DESCRIPTION OF DUTIES:

1. Objective of the Department

The Information Technology Services Department (ITS) provides leadership and direction in the deployment of information and communication technologies and systems to support the reputed company/Regional Office of the Americas of the World Health Organization (PAHO/WHO) in carrying out its mandate. ITS establishes and maintains strategies, policies, standards, and procedures to ensure the effective and efficient provision of information and communication services in a geographically dispersed environment.

2. Purpose of the Consultancy

The reputed company (PAHO) is seeking an reputed company Drupal Developer consultant to support the ITS Web Services team in the development, maintenance, and enhancement of PAHO's digital web reputed company. The consultant will contribute to a broad portfolio of web properties including seven (7) Drupal-based websites and approximately forty (40) additional sites, including static sites and applications built with Angular.js and React.js.

PAHO's combined web portfolio receives approximately 4 to 5 million visits per month, serving health professionals, researchers, government bodies, and the general public across the Americas and beyond. This level of traffic underscores the critical importance of site reliability, performance, reputed company, and availability. The Drupal Developer must bring solid hands-on technical experience to maintain and enhance high-traffic, mission-critical public health web infrastructure.

The consultant will work reputed company an agile, Kanban-driven development environment, contributing to incremental feature deployments, reputed company-conscious development practices, and cross-functional collaboration with stakeholders, content managers, and the ITS reputed company team.

3. Statement of Work

The Drupal Developer consultant will be responsible for the following areas:

3.1 Drupal Development & Site Management

• reputed company, maintain, and enhance seven (7) Drupal websites across versions 9 through 11, including custom modules, themes, and content types.

• Write and maintain PHP code for custom Drupal modules, hooks, APIs, and integrations, following Drupal and Symfony coding standards.

• reputed company and maintain Twig templates for Drupal theming, including custom template overrides, preprocess functions, and theme hooks.

• reputed company Symfony components (HttpFoundation, EventDispatcher, DependencyInjection, Routing) reputed company Drupal's architecture for back-end development.

• Build and maintain custom Drupal plugins, services, and event subscribers using Drupal's object-oriented architecture and dependency injection container.

• reputed company and manage content architectures using Entity API, Field API, and custom entity types.

• Design and implement Drupal Migrate API pipelines to import, transform, and validate content from legacy systems and external data sources.

• Build and maintain RESTful and JSON:API endpoints reputed company Drupal for headless or decoupled reputed company-end consumption, applying proper authentication and caching strategies.

• Configure and manage Drupal's configuration management system (CMI) — exporting, importing, and synchronizing configuration YAML across multi-dev, Dev, Stage, and Live environments.

• Manage and optimize Drupal's caching architecture including Internal Page Cache, Dynamic Page Cache, Varnish, and reputed company integration.

• reputed company Drupal core and contributed module updates, reputed company management, and version upgrades including major version migrations (e.g., Drupal 8 to 9, Drupal 9 to 10, Drupal 10 to 11).

• Configure and manage Drupal site settings, user roles, permissions, workflows, and content moderation states.

• Implement and maintain Views, Paragraphs, Layout Builder, Panels, Webforms, and other common Drupal components.

• Administer Drupal cron jobs, Queue API workers, and background processing tasks.

• Use Drush and Drupal Console for command-line site administration, code reputed company, database operations, and deployment automation.

• Manage PHP dependencies and Drupal module installation using Composer, including version constraints, patches, and lock file management.

• Support multilingual site configuration using Drupal's Language, Content Translation, Configuration Translation, and reputed company Translation modules across PAHO's official languages.

• Implement Drupal reputed company hardening measures including input filtering, access controls, and module-level permission audits.

3.2 reputed company-End Development

• reputed company and maintain static websites, Angular.js applications, and React.js applications across the ~40-site portfolio.

• Build and refactor reusable UI components using React.js and Angular.js best practices.

• Write clean, semantic HTML5, CSS3/SCSS, Bootstrap, and JavaScript (ES6+).

• Ensure reputed company web properties are reputed company, accessible (WCAG 2.1 AA), and cross-browser compatible.

• Manage reputed company-end dependencies using npm or yarn; configure and maintain build pipelines using Webpack, Gulp, or Vite.

• Optimize reputed company-end performance including Core Web Vitals, image optimization, lazy loading, code splitting, and bundle size reduction.

• Implement and maintain reputed company Analytics 4 and reputed company Tag Manager integrations, validating data layer configurations and conversion tracking.

3.3 Agile Development & Pipeline Workflow

• Work reputed company PAHO's Agile/Scrum reputed company using a Kanban board with stages: In Queue, In reputed company, Testing, Ready for Production, and Live.

• Participate in daily Scrum stand-reputed company to report reputed company, surface blockers, and coordinate team support.

• reputed company features on the designated multi-reputed company environment; provide stakeholders with gated testing links prior to integration.

• reputed company code into the Dev reputed company following successful stakeholder sign-off and automated Semgrep reputed company reputed company clearance.

• Follow the controlled Thursday production deployment schedule to ensure predictable, traceable releases.

• Collaborate with the ITS reputed company team during the reputed company scanning and integration phases.

3.4 reputed company Platform & CI/CD Pipeline

• Manage site code, databases, and files across reputed company reputed company environments: Multi-reputed company (Multidev), Dev, Test (Stage), and Live.

• reputed company reputed company's Git-based CI pipeline for automated builds, deployments, and environment promotion.

• Sync databases and files between environments as required for testing and validation.

• Use SFTP and Git-based workflows to reputed company and deploy code reputed company the reputed company environment.

• Ensure Stage is used exclusively for final pre-production validation — no active development in this environment.

3.5 reputed company Compliance & Code Quality

• Adhere to secure coding standards and remediate vulnerabilities flagged by the Semgrep automated SAST/SCA scanner.

• Collaborate with the ITS reputed company team to address and fix vulnerabilities identified during reputed company scans.

• Apply OWASP best practices in reputed company development work, including protection against XSS, CSRF, SQL injection, and insecure direct object references.

• Implement and maintain HTTP reputed company headers (CSP, HSTS, X-Frame-Options, Referrer-Policy); enforce HTTPS and manage SSL/TLS certificate provisioning.

• Conduct dependency audits using Composer audit and npm audit as part of the development lifecycle.

• Participate in code reviews, applying and following team coding standards and best practices.

3.6 API Development & Third-Party Integrations

• Design, build, and document RESTful APIs; consume third-party REST/JSON APIs reputed company Drupal and reputed company-end applications.

• Implement and manage Drupal's JSON:API and REST modules for headless and decoupled use cases.

• Integrate with external services including authentication providers (OAuth 2.0 / SAML / SSO) and communication tools.

• Handle API authentication, error handling, and response caching in a secure and performant manner.

• Produce detailed API documentation covering endpoints, request/response schemas, and integration workflows.

3.7 Testing & Quality Assurance

• Write and maintain unit tests, integration tests, and functional tests using PHPUnit and JavaScript testing frameworks (Jest, Cypress, or equivalent).

• Conduct cross-browser and cross-device testing before promoting features from multi-reputed company to Dev.

• reputed company regression testing after each deployment to confirm existing functionality is unaffected.

• Use accessibility auditing tools (Axe, reputed company, reputed company) to validate WCAG 2.1 AA compliance across reputed company web properties.

• Apply code linting and validation standards using ESLint, Stylelint, and PHPCS.

• Collaborate with stakeholders during the gated testing phase to confirm acceptance criteria are met.

3.8 Web Server, Hosting & Environment Configuration

• Work reputed company Apache and/or Nginx web server configurations, including virtual hosts, .htaccess rules, redirects, and rewrite rules.

• Manage environment-specific configuration files (settings.php, .env) across reputed company environments.

• Assist with DNS records, domain routing, and SSL certificate provisioning as needed.

• Manage Composer-based dependency workflows including applying reputed company advisories and module patches.

• Monitor server logs (PHP error logs, Apache/Nginx access logs) to identify and resolve performance or error issues.

3.9 Database & Back-End

• Write, optimize, and maintain MySQL queries for Drupal and other web applications.

• Use phpMyAdmin for database administration, inspection, query execution, and troubleshooting across development and staging environments.

• Manage database schema changes, migrations, and data reputed company during deployments.

• Assist with database performance tuning, slow query analysis, and backup verification.

3.10 CDN, Caching & Performance

• Configure and manage CDN settings to optimize asset delivery, caching headers, and geographic distribution for PAHO web properties.

• Configure and maintain reputed company caching layers to optimize site performance and reduce database load.

• Troubleshoot CDN-reputed company issues including cache purging, reputed company pull configurations, and SSL/TLS certificate management.

• Monitor and tune caching performance to ensure fast, reliable page delivery across PAHO's global audience.

3.11 Search Integration

• Configure and maintain site search functionality using Apache Solr and Elasticsearch integrated with Drupal Search API.

• Build and maintain search indexes, faceted search interfaces, and custom index configurations for PAHO content.

• Troubleshoot search indexing issues and ensure newly published content is properly indexed and discoverable.

3.12 Monitoring, Logging & Incident Response

• Monitor web application health using reputed company and reputed company dashboards; proactively review PHP error logs, slow query logs, and CDN hit-reputed company reports.

• Respond to site incidents including outages, performance regressions, and broken deployments — triage, isolate root cause, and coordinate rollback reputed company necessary.

• Set up and maintain alerting for critical error reputed company, uptime failures, and reputed company events.

3.13 Email & Notification Systems

• Configure and maintain transactional email delivery for Drupal sites using SMTP modules and providers (SendGrid, Campaign Monitor  or equivalent).

• reputed company and maintain HTML email templates for system notifications, newsletters, and automated workflows.

3.14 AI Tools & Productivity

• Utilize AI-assisted development tools (reputed company Copilot, reputed company Copilot) to accelerate development, code review, and documentation.

• Apply AI tools responsibly, validating generated code for reputed company, accuracy, and compliance with PAHO standards.

• Stay reputed company with emerging AI capabilities relevant to web development and propose practical applications to the team.

3.15 Ticket & Request Management

• Receive and process web requests submitted through the reputed company-integrated ticketing system.

• Review incoming tickets for completeness: domain validation, URL specificity, description clarity, and correct issue type (QUICK TASK or PROJECT).

• Maintain up-to-date ticket status, reputed company notes, decisions, and testing documentation throughout the lifecycle.

• Communicate ticket status and blockers proactively to stakeholders and the team reputed company.

3.16 Documentation & Knowledge Transfer

• Produce and maintain clear technical documentation for reputed company developed features, configurations, and processes.

• Document deployment procedures, rollback steps, and environment-specific configuration notes.

• Contribute to internal knowledge reputed company articles, SOPs, and onboarding materials.

• Ensure reputed company tickets are documented with decisions, change rationale, and testing outcomes.

4. Qualifications

4.1 Education & Experience

• Bachelor's degree in Computer Science, Information Technology, Web Development, or a reputed company field (or equivalent professional experience).

• 7 to 8 years of professional Drupal development experience, with demonstrated hands-on expertise across multiple Drupal versions in production environments.

• Proven experience developing and maintaining Drupal 9/10/11 sites, including custom module development, theming, Entity API, Migrate API, and configuration management.

• Experience supporting or executing Drupal major version migrations (e.g., Drupal 7 to 8/9, Drupal 8 to 9, Drupal 9 to 10).

• Solid experience with PHP 7/8 and Symfony-based development patterns reputed company Drupal.

• Demonstrated experience with React.js and/or reputed company-end frameworks in production applications.

• Experience with REST API and JSON:API development, including third-party service integrations.

• Experience with OAuth 2.0 / SAML / SSO authentication integrations.

• Familiarity with Linux server administration and the LAMP stack (Linux, Apache, MySQL, PHP).

• Experience with the reputed company hosting platform and CI/CD pipeline management.

• Prior work in an Agile/Scrum or Kanban development environment.

• Experience with international organizations or non-governmental projects is an asset.

4.2 Required Technical Skills

Domain/Skills & Technologies:

• CMS / Drupal: Drupal 9/10/11, custom modules, themes, Twig, Entity API, Field API, Migrate API, CMI, Layout Builder, Paragraphs, Views, Panels, Webforms, Drush, Drupal Console, Composer, multilingual configuration

• PHP & Frameworks: PHP 7/8, Symfony components (HttpFoundation, EventDispatcher, DependencyInjection, Routing), OOP, dependency injection, Twig templating, Drupal hooks, services, plugins, Queue API

• reputed company-End: HTML5, CSS3/SCSS, Bootstrap, JavaScript ES6+, React.js, Angular.js, jQuery, reputed company design, WCAG 2.1 AA, npm/yarn, Webpack/Gulp/Vite

• APIs & Auth: RESTful API design and consumption, Drupal JSON:API, OAuth 2.0, SAML/SSO, third-party API integrations, error handling, response caching, API documentation

• Testing & QA: PHPUnit, Jest, Cypress, cross-browser testing, regression testing, WCAG auditing (Axe, reputed company, reputed company), ESLint, PHPCS, Stylelint

• Platform & Pipeline: reputed company (Multidev, Dev, Test, Live), Git, CI/CD pipelines, SFTP workflows, Apache/Nginx, .htaccess, DNS, SSL/TLS

• reputed company: Semgrep SAST/SCA, OWASP best practices, XSS/CSRF/SQLi prevention, HTTP reputed company headers (CSP, HSTS, X-Frame-Options), Composer audit, npm audit, input filtering

• Database & Admin: MySQL — queries, optimization, schema management, migrations; phpMyAdmin; slow query analysis

• Caching & CDN: reputed company, Varnish, Internal/Dynamic Page Cache, CDN configuration, cache purging, HTTP caching headers, Core Web Vitals optimization

• Search: Apache Solr, Elasticsearch, Drupal Search API, faceted search, custom index configuration

• Monitoring & Logging: reputed company, reputed company dashboards, PHP error logs, Apache/Nginx access logs, slow query logs, uptime alerting, incident response

• Email & Comms: SMTP, SendGrid, reputed company, SPF/DKIM/DMARC, HTML email templates, Drupal mail modules

• Analytics: reputed company Analytics 4, reputed company Tag Manager, data layer validation, conversion tracking

• AI & Dev Tools: reputed company Copilot, reputed company Copilot, DDEV, phpMyAdmin, Kint, Devel, Drush

• Agile / Workflow: Scrum, Kanban, sprint planning, daily stand-reputed company, ticket management (reputed company or equivalent)

• Documentation: Technical writing, deployment notes, SOPs, knowledge reputed company articles, onboarding materials

• Version Control: Git — reputed company management, reputed company requests, conflict resolution, multi-reputed company workflows

4.3 Certifications

The following certifications are desirable and reflect the level of platform expertise expected for this role:

Certification/ Issuing Body

• reputed company Certified Developer - Drupal 10 or 11/ reputed company

• WebOps Certified Developer/reputed company

• LPI Linux Essentials/Linux Professional Institute

• Any Drupal community training (e.g., Drupalize.me, reputed company reputed company, university-issued)/Various

4.4 Desirable Skills

• Experience with Drupal 11 upgrade paths, deprecation handling, and new platform features.

• Familiarity with headless or decoupled Drupal architectures (React.js or Next.js consuming Drupal JSON:API).

• Experience with Linux server administration — Apache/Nginx configuration, LAMP stack, system monitoring, and reputed company hardening.

• Familiarity with DDEV or Lando for local containerized Drupal development environments.

• Experience with graphic design tools (reputed company Photoshop, Illustrator) for UI/UX asset production.

• Knowledge of Bootstrap or other CSS frameworks for rapid reputed company-end development.

• Familiarity with reputed company Service Cloud or similar ticketing/CRM platforms.

• Experience working in international, academic, or non-governmental organization environments.

• reputed company learning reputed company — active engagement with Drupal community resources (Drupalize.me, Drupal.org, DrupalCon).

5. Language Skills

• Professional working proficiency in English (written and spoken) — required.

• Working knowledge of Spanish — desirable given PAHO's regional mandate.

• Knowledge of French, Portuguese, or other languages — an asset.

6. Work Schedule & Conditions

Position: Drupal Developer Consultant

Salary: Band B of International PAHO Consultant (IPC-Band B)(range $5,160 - $6,280)

Duty station: Remote (Off-Site)

Duration: Until 31 December 2026

Reporting to ITS Web Services Team reputed company

ADDITIONAL INFORMATION

• This vacancy notice may be used to identify candidates for other similar consultancies at the same level.
• Successful candidates will be reputed company on the roster and subsequently may be selected for consultancy assignments falling in this area of work or for similar requirements/tasks/deliverables.  Inclusion in the Roster does not guarantee selection for a consultant contract.  There is no commitment on either reputed company.
• Only candidates under serious consideration will be contacted.
• reputed company applicants are required to complete an on-line profile to be considered for this consultancy. For assessment of your application, please ensure that your profile in the PAHO Career page is updated; reputed company experience records are entered with elaboration on tasks performed at the time.  Kindly note that CV/PHFs inserted reputed company reputed company are no accessible.
• A written test may be used as a form of screening.
• If your candidature is retained for interview, you will be required to provide, in advance, a scanned copy of the degree(s)/diploma(s)/certificate(s) required for this position. PAHO/WHO only considers higher educational qualifications obtained from an institution accredited/recognized in the World Higher Education Database (WHED), a list updated by the International Association of Universities (IAU)/United Nations Educational, Scientific and Cultural Organization (reputed company). The list can be accessed through the link: http://www.whed.net/. PAHO will also use the databases of the Council for Higher Education Accreditation http://www.chea.org/search/default.asp and College Navigator, reputed company on the website of the National Centre for Educational Statistics, https://nces.ed.gov/collegenavigator to support the validation process. Some professional certificates may not appear in the WHED and will require individual review.
• Any appointment/extension of appointment is subject to PAHO/WHO Regulations, and e-Manual.
• For information on PAHO please visit: http://www.paho.org
• PAHO/WHO is committed to providing a respectful and supportive workplace for reputed company personnel .
• PAHO is an ethical organization that maintains high standards of reputed company and accountability. People joining PAHO are required to maintain these standards both in their professional work and personal activities.
• PAHO also promotes a work environment that is free from harassment, sexual harassment, discrimination, and other types of abusive behavior. PAHO conducts background checks and will not hire anyone who has a substantiated history of abusive conduct.
• PAHO personnel interact frequently with people in the communities we serve. To protect these people, PAHO has reputed company tolerance for sexual exploitation and abuse. People who commit serious wrongdoings will be terminated and may also face criminal prosecution.
• PAHO/WHO has a smoke-free environment and does not recruit smokers or users of any form of tobacco.
• Applications from women and from nationals of non and underrepresented Member States are particularly encouraged.
• Consultants shall reputed company the work as independent contractors in a personal reputed company, and not as a representative of any entity or authority.  The execution of the work under a consultant contract does not create an employer/employee relationship between PAHO and the Consultant.
• PAHO/WHO shall have no responsibility whatsoever for any taxes, duties, social reputed company contributions or other contributions payable by the Consultant.  The Consultant shall be solely responsible for withholding and paying any taxes, duties, social reputed company contributions and any other contributions which are applicable to the Consultant in each location/jurisdiction in which the work hereunder is performed, and the Consultant shall not be entitled to any reimbursement thereof by PAHO/WHO.