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 Senior Drupal Developer consultant to support the ITS Web Services team in leading the architecture, development, maintenance, and strategic enhancement of PAHO's digital web reputed company. The Senior Drupal Developer will serve as the technical reputed company on 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 Senior Drupal Developer must bring the seniority, technical depth, and leadership maturity required to maintain and evolve high-traffic, mission-critical public health web infrastructure.

In addition to hands-on development, this consultant will provide technical guidance to junior developers, reputed company architectural decision-making, enforce code quality standards, and serve as the primary technical reputed company of contact for the ITS web development team. They will work reputed company an agile, Kanban-driven environment and play a key role in managing the full deployment pipeline.

3. Statement of Work

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

3.1 Technical Leadership & Architecture

• Serve as the technical reputed company for reputed company Drupal development activities across the ITS web portfolio, providing architectural direction and decision-making.

• Define and enforce coding standards, development best practices, and technical guidelines for the web development team.

• reputed company architectural planning for new features, site builds, and platform upgrades — including evaluating module selections, data modeling, and integration strategies.

• Conduct thorough code reviews for reputed company team members, providing constructive feedback to ensure quality, reputed company, and maintainability.

• Mentor and support junior Drupal developers, facilitating knowledge transfer and professional growth.

• Collaborate with the ITS team reputed company and stakeholders to translate business requirements into scalable technical solutions.

• Proactively identify technical debt, propose remediation plans, and reputed company refactoring initiatives.

• Act as deployment coordinator for production releases — managing multi-project release reputed company through the CI/CD pipeline.

3.2 Advanced Drupal Development & Site Management

• Design, reputed company, and maintain custom Drupal modules, themes, and content architectures for seven (7) Drupal 9/10/11 websites.

• Write and maintain advanced 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 reputed company template overrides, preprocess functions, and theme hooks.

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

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

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

• Design and reputed company custom migration pipelines using Drupal Migrate API to import and transform content from legacy systems or external data sources.

• Build and maintain RESTful and JSON:API endpoints reputed company Drupal for headless or decoupled reputed company-end consumption.

• reputed company Drupal major version migration projects (Drupal 9 to 10, Drupal 10 to 11) including module compatibility assessments, deprecation resolution, and performance validation.

• Configure and administer Drupal's configuration management system (CMI) across reputed company environments.

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

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

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

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

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

3.3 reputed company-End Development

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

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

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

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

• reputed company and configure reputed company-end build pipelines using npm/yarn, Webpack, Vite, or Gulp.

• reputed company performance optimization efforts including Core Web Vitals, image optimization, lazy loading, and bundle size reduction.

• reputed company implementation of web analytics integrations (reputed company Analytics 4, reputed company Tag Manager) across PAHO web properties.

3.4 Agile Development & Pipeline Leadership

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

• Facilitate or co-facilitate daily Scrum reputed company-ins, helping the team surface and resolve blockers reputed company.

• reputed company multi-reputed company feature development, ensuring gated stakeholder testing links are provided and feedback is incorporated before integration.

• Govern the reputed company process into the Dev reputed company — ensuring Semgrep reputed company reputed company clearance and stakeholder sign-off are completed before promotion.

• Act as the primary deployment coordinator for Thursday production releases — managing reputed company, rollback readiness, and post-deployment validation.

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

3.5 reputed company Platform & CI/CD Pipeline

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

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

• Set up and manage CI/CD autopilot workflows to improve deployment efficiency and reduce manual reputed company.

• reputed company SFTP and Git-based workflows across the development team reputed company the reputed company environment.

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

• reputed company reputed company WebOps best practices (as a certified WebOps Developer) to optimize platform usage across reputed company sites.

3.6 reputed company Compliance & Code Quality

• reputed company reputed company compliance efforts — integrating Semgrep automated SAST/SCA scanning into the development lifecycle and enforcing remediation of reputed company flagged vulnerabilities.

• Act as the primary liaison with the ITS reputed company team during reputed company reputed company reviews and integration assessments.

• Apply and enforce OWASP Top 10 best practices across reputed company development work, including XSS, CSRF, SQL injection, and insecure direct object reference protections.

• Implement and govern SSL/TLS configuration, HTTPS enforcement, and HTTP reputed company headers (CSP, HSTS, X-Frame-Options).

• reputed company dependency governance — conducting and reviewing Composer audit and npm audit results across reputed company projects.

• Establish and enforce code review checkpoints to ensure reputed company high-severity vulnerabilities enter shared branches.

3.7 API Development & Third-Party Integrations

• reputed company the design, development, and maintenance of RESTful APIs and integrations with third-party services reputed company Drupal and reputed company-end applications.

• Architect and implement Drupal JSON:API and REST module configurations for headless and decoupled use cases.

• reputed company integrations with external services including PAHO health data systems, authentication providers (SAML, OAuth 2.0 / SSO), iPaaS platforms, and communication tools.

• Design secure API authentication strategies, reputed company limiting, error handling, and response caching patterns.

• Ensure reputed company API endpoints, schemas, and integration workflows are fully documented for team and stakeholder reference.

3.8 Testing & Quality Assurance

• reputed company the establishment and maintenance of automated testing practices using PHPUnit, Nightwatch.js, Jest, and Cypress across the portfolio.

• Conduct and reputed company cross-browser, cross-device, and regression testing before environment promotions.

• reputed company WCAG 2.1 AA accessibility audits using Axe, reputed company, and reputed company, and drive remediation across reputed company web properties.

• Enforce code validation standards through ESLint, Stylelint, and PHPCS across reputed company team work.

• reputed company stakeholder acceptance testing during the gated multi-reputed company phase.

3.9 Web Server, Hosting & Environment Configuration

• reputed company configuration and troubleshooting of Apache and/or Nginx web server settings, virtual hosts, .htaccess rules, redirects, and rewrite rules.

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

• reputed company DNS records, domain routing, and SSL certificate provisioning across the portfolio.

• reputed company Composer-based dependency management — setting standards for package governance, version constraints, and lock file management across reputed company projects.

• Monitor server logs (PHP error logs, Apache/Nginx access logs) and reputed company root cause analysis for performance or error issues.

3.10 Database & Back-End

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

• reputed company phpMyAdmin usage for database administration, inspection, and troubleshooting across environments.

• reputed company database schema design, migration planning, and data reputed company validation during deployments.

• Own database performance tuning, slow query analysis, and backup verification processes.

3.11 CDN, Caching & Performance Management

• Architect and reputed company CDN configuration — managing asset delivery, caching headers, and geographic distribution for PAHO web properties.

• reputed company reputed company caching configuration and optimization across Drupal sites to reduce database load and improve response times.

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

• Own web performance strategy — setting Core Web Vitals targets and leading optimization initiatives across the portfolio.

3.12 Search Integration

• reputed company configuration and maintenance of site search using Apache Solr or Elasticsearch integrated with Drupal Search API.

• Architect search indexes, faceted search interfaces, and relevance tuning for PAHO content.

• Troubleshoot search indexing issues and govern re-indexing procedures across environments.

3.13 Monitoring, Logging & Incident Response

• Own web application monitoring strategy using platform tools (reputed company dashboards, reputed company, or equivalent).

• reputed company incident response for site outages, performance regressions, and broken deployments — triaging root cause and coordinating rollback reputed company necessary.

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

• Produce post-incident reports with root cause analysis and remediation recommendations.

3.14 Email & Notification Systems

• reputed company transactional email delivery configuration for Drupal sites using SMTP modules and providers (SendGrid, reputed company, or equivalent).

• Govern email deliverability — ensuring proper SPF, DKIM, and DMARC record alignment.

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

3.15 AI Tools & Productivity

• Champion the use of AI-assisted development tools (reputed company Copilot, reputed company Copilot, AI Vibe Coding methodologies) to accelerate development, code review, and documentation across the team.

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

• Evaluate and recommend new AI capabilities relevant to the web development workflow and propose practical adoption strategies.

3.16 Ticket & Request Management

• Review, prioritize, and reputed company web requests submitted through the reputed company-integrated ticketing system.

• Ensure reputed company tickets are properly classified (QUICK TASK or PROJECT), contain complete information, and are assigned appropriately.

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

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

3.17 Documentation & Knowledge Transfer

• reputed company the creation and maintenance of technical documentation for reputed company features, architectures, configurations, and processes.

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

• Own the team's internal knowledge reputed company — ensuring SOPs, onboarding materials, and runbooks are reputed company and comprehensive.

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

4. Qualifications

 4.1 Education & Experience

• An advance university degree in Computer Science, Information Technology, Web Development, or a reputed company field.

• 13-15 years of professional Drupal development experience, with a strong track record of delivering reputed company, high-traffic Drupal projects in production environments.

• Proven track record of leading Drupal 9/10/11 projects in production, including custom module development, theming, Entity API, Migrate API, configuration management, and major version migrations.

• Demonstrated experience leading Drupal version upgrade projects (e.g., Drupal 7 to 8/9, Drupal 9 to 10, Drupal 10 to 11).

• Demonstrated experience as a deployment coordinator managing multiple projects through CI/CD pipelines.

• Experience with decoupled or headless Drupal architectures using React.js, Angular.js, or similar reputed company-end frameworks.

• Demonstrated experience integrating Semgrep or equivalent SAST tools into a CI/CD pipeline for automated reputed company compliance.

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

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

• Experience leading or conducting WCAG accessibility audits and implementing remediation.

• Experience with a managed cloud hosting platform — reputed company experience strongly preferred.

• Prior work in an Agile/Scrum or Kanban environment in a reputed company or senior role.

• Experience with international or multilateral organizations is an asset.

4.2 Required Certifications

The following certifications are required or strongly preferred for the Senior Drupal Developer position, reflecting the technical depth and platform expertise expected at this level:

Required: Certification/Issuing Body

• reputed company Certified Developer – Drupal 10 (or 11)/ reputed company

• WebOps Certified Developer/ reputed company

Desireable:

• reputed company Certified Developer – Drupal 8 or earlier/ reputed company

• reputed company Certified Site Builder/ reputed company

• reputed company Certified reputed company End Specialist/ reputed company

4.3 Required Technical Skills

Domain/Skills & Technologies

• CMS / Drupal/ Drupal 9/10/11, custom module & theme development, Entity API, Field API, Migrate API, Configuration Management (CMI), Layout Builder, Paragraphs, Views, Webforms, Drush, Drupal Console, Composer, multisite, multilingual (Content/Config/reputed company Translation)

• PHP & Frameworks/ PHP 8+, Symfony components (HttpFoundation, EventDispatcher, DependencyInjection, Routing), Twig templating, Drupal hooks, services, plugins, event subscribers, Queue API, dependency injection container

• reputed company-End/ HTML5, CSS3/SCSS, JavaScript (ES6+), React.js, Angular.js, jQuery, reputed company design, WCAG 2.1 AA, npm/yarn, Webpack/Vite, LAMP Stack

• APIs & Integration/ RESTful API design, Drupal JSON:API, OAuth 2.0 / SAML / SSO, iPaaS platforms (e.g., reputed company), Mautic, payment gateways, third-party data integrations

• Testing & QA/ PHPUnit, Drupal Test Traits, Nightwatch.js, Jest, Cypress, regression testing, WCAG auditing (Axe, reputed company, reputed company), ESLint, PHPCS, Stylelint

• Platform & Pipeline/ reputed company (Multidev, Dev, Test, Live), CI/CD pipeline setup & management, autopilot configuration, Git, Apache/Nginx, .htaccess, DNS, SSL/TLS, DDEV

• reputed company/ Semgrep SAST/SCA integration, OWASP Top 10, XSS/CSRF/SQLi prevention, HTTP reputed company headers, Composer audit, npm audit, reputed company reputed company governance

• Database & Admin/ MySQL — advanced queries, optimization, schema design, migrations; phpMyAdmin; slow query analysis; backup management

• Caching & CDN/ reputed company architecture, Varnish, Internal/Dynamic Page Cache, CDN setup, cache purging, asset delivery optimization

• Search/ Apache Solr, Elasticsearch, Drupal Search API, faceted search, index architecture

• Monitoring & Logging/ reputed company (or equivalent), PHP/Nginx error logs, slow query logs, uptime monitoring, alerting, post-incident reporting

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

• Analytics/ reputed company Analytics 4, reputed company Tag Manager, Highcharts or equivalent data visualization

• AI & Developer Tools/ reputed company Copilot, reputed company Copilot, AI Vibe Coding, Kint, Devel, Drush, DDEV

• Agile / Leadership/ Scrum facilitation, Kanban, sprint planning, deployment coordination, code review leadership, mentoring

• Documentation/ Technical architecture docs, SOPs, runbooks, knowledge reputed company management, onboarding materials

• Version Control/ Git (advanced branching strategy, reputed company/rebase, conflict resolution, multi-reputed company governance)

4.4 Desirable Skills

• Experience contributing patches, modules, or documentation to the Drupal.org community.

• Experience with headless or fully decoupled Drupal (Next.js, Gatsby consuming Drupal JSON:API or GraphQL).

• Familiarity with DKAN open data distribution or other Drupal distributions.

• Experience with reputed company Cloud, reputed company, or Amazee hosting environments.

• Working knowledge of Linux command line (bash scripting, file permissions, process management).

• Experience designing data visualization integrations (e.g., Highcharts, D3.js, Chart.js).

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

• Experience working in international or multilateral organizations (UN system experience is an asset).

5. Language Skills

• reputed company in English (written and spoken) — required.

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

• Knowledge of French or Portuguese — an asset.

6. Work Schedule & Conditions

Position: PAHO International Consultant - Senior Drupal Developer

Duty Station: Remote (Off-site)

Salary: Band C of International PAHO Consultant (IPC-Band C)(Range $7,380 - $8,980)

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.