Web Developer Master (Onsite)

Job Title: Web Developer Master (Onsite)

Location: Washington DC

Duration: 03 Months with possible extension

Job Description:

The client requires the services of a contractor Web Developer with strong Drupal expertise to support the development maintenance and modernization of District government websites including client and associated agency digital properties.

Scope of Work

• Design develop and maintain Drupal-based websites supporting client and District agency platforms.
• Build and customize Drupal modules themes content types taxonomies and views per agency requirements.
• Perform Drupal core and contributed module updates security patches and version migrations (e.g. Drupal 7 to Drupal 10/11).
• Integrate Drupal sites with enterprise systems APIs and third-party services.
• Ensure deliverables comply with Section 508 WCAG 2.1 AA and District web standards.
• Apply web security best practices consistent with client and federal cybersecurity guidelines.
• Collaborate with client project managers UX designers content strategists and agency stakeholders.
• Produce technical documentation code comments and operational runbooks.
• Provide Tier 3 production support and participate in deployment activities including occasional after-hours work.

Required Technical Skills

HTML & Markup

• Strong command of semantic HTML5: sectioning elements headings hierarchy lists tables and forms.
• Solid grasp of web accessibility (WCAG 2.1 AA): ARIA roles and attributes keyboard navigation focus management alt text and accessible form labeling.
• Familiarity with structured data and SEO markup: meta tags Open Graph Twitter cards and
• Understanding of how Drupal renders markup through Twig and the ability to produce clean valid output via template overrides.

CSS & Styling

• Deep working knowledge of modern CSS layout: Flexbox and CSS Grid with sound judgment about when to use each.
• Proficiency with responsive design: media queries fluid typography container queries and mobile-first methodology.
• Command of the cascade specificity and inheritance with the ability to debug specificity conflicts rather than reaching for !important
• Comfort with CSS custom properties (variables) modern color/spacing tokens and maintainable theming patterns.
• Awareness of cross-browser compatibility vendor prefixing strategy and progressive enhancement.

Nice to Have

• Strong SCSS/SASS skills: nesting mixins functions partials and a disciplined file architecture.
• A consistent CSS methodology such as BEM and an understanding of how it maps onto Drupals class conventions.
• Familiarity with CSS transitions transforms and animations used with attention to performance and reduced-motion preferences.

JavaScript

• Solid command of modern JavaScript (ES6): arrow functions destructuring modules promises and async/await.
• Strong DOM manipulation and event-handling skills including event delegation and performance-conscious listeners.
• Fluency with the Fetch API and asynchronous data handling including JSON parsing and error handling.
• Working knowledge of Drupals JavaScript layer: Drupal. behaviors once() drupal Settings and the AJAX framework
• Understanding of how to attach and scope JS correctly through the Libraries API rather than inline scripts.
• Familiarity with debugging via browser DevTools: breakpoints the network panel performance profiling and the console.

Nice to Have

• Awareness of frontend performance: deferring/async loading minimizing reflows debouncing/throttling and avoiding render-blocking scripts.
• Experience with a build/tooling pipeline (Webpack Vite or Gulp) and with linting/formatting (ESLint Prettier Stylelint).
• Exposure to a modern framework (React/Vue) is a plus particularly for decoupled or partially decoupled Drupal frontends.

Drupal

Site Administration & Configuration Management

• Fluency with the Drupal 9/10/11 admin UI: content types fields vocabularies view modes form/display modes blocks menus URL aliases and redirects.
• Solid command of Configuration Management workflows: config export/import configsplit for environment-specific config configignore for protected config.
• Strong grasp of user access control: roles permissions content moderation workflows and custom workflow states/transitions.
• Demonstrated expertise with Views: complex queries contextual filters relationships exposed filters/sorts output rewriting and REST exports.
• Experience administering the Media Library image styles responsive image styles and crop/focal-point strategies.
• A clear mental model of what belongs in config vs. content vs. state vs. settings. php.

Theming & Frontend

• Strong Twig skills: template suggestions template preprocessing and theme hook implementations.
• Comfort with the Libraries API: defining JS/CSS managing dependencies and conditional loading.
• Experience with modern base themes (Olivero/Stable9) and component-based theming.
• Familiarity with Single Directory Components (SDC) for Drupal 10.3.
• Solid responsive design fundamentals a disciplined CSS methodology (e.g. BEM) and SCSS/SASS proficiency.

Multi-Domain / Multi-Site (Nice to Have)

• Hands-on experience with the Domain Access module: domain entities domain access fields on content/users/blocks and current-domain negotiation.
• Practical command of the Domain Config module including domain-specific config overrides and override precedence ( > Domain Config UI > base config)
• A clear understanding of how config overrides cascade and why programmatic overrides in will silently take precedence over UI changes
• Familiarity with cache contexts and invalidation in a multi-domain context.
• Experience with domain-aware menu block and pathauto strategies and with cross-domain content sharing vs. domain-restricted content patterns

Security

• Disciplined input sanitization and output escaping (Xss Html Url filters; Twig autoescaping).
• A reflexive habit of using placeholders to prevent SQL injection and applying access checks on entity queries.
• Working knowledge of file-upload security CSRF tokens and trusted host patterns.
• Experience conducting permission audits and reviewing for privilege escalation.

DevOps Deployment & Tooling

• Understanding of Git workflows: feature branches rebase vs. merge conflict resolution and hotfix patterns.
• Strong Drush proficiency including cache rebuilds config import/export user management.
• Competence with Composer for project scaffolding patching and autoloader generation.
• Experience with a local development environment ideally Lando (DDEV/Docksal also welcome).

Nice to Have

• Familiarity with CI/CD pipelines (BLT GitHub Actions or Acquia Pipelines).
• Hands-on Acquia Cloud experience: environments Cloud Hooks code/database/files workflow and Acquia CLI.
• Comfort with multi-database configuration and routing.

Integration & Standards (Nice to Have)

• Experience building and consuming REST APIs: JSON: API the REST module and custom REST resources.
• Experience with common third-party integrations: analytics and marketing automation.

Working Style & Collaboration

• The ability to write technical documentation that a non-developer content editor can follow.
• A methodical diagnostic approach - able to walk through debugging complex issues without guesswork.
• Good code-review hygiene: readable commits descriptive PRs and openness to feedback.
• Adherence to Drupal community coding standards (PHPCS with the Drupal and DrupalPractice rulesets).

Responsibilities:

• Performs programming and technical work for website and Internet development.

Minimum Education/Certification Requirements:

• Bachelors degree in IT or related field or equivalent experience

Skills: