Web Developer Master
Jobs via Dice
Position Title & Code Web Developer Master Location Washington DC 20003 Project End Date 09/30/2026 (With Possible extension to next fiscal year) 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 Schema.org/JSON‑LD. 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 resorting to !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. 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 Drupal's 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 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 Drupal's class conventions. Familiarity with CSS transitions, transforms, and animations, used with attention to performance and reduced‑motion preferences. 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 linting/formatting (ESLint, Prettier, Stylelint). Exposure to a modern framework (React/Vue) is a plus, particularly for decoupled or partially decoupled Drupal frontends. Drupal Expertise 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, config split for environment‑specific config, config ignore 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 (settings.php > Domain Config UI > base config). A clear understanding of how config overrides cascade, and why programmatic overrides in settings.php 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 auto escaping). 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 Drupal Practice rulesets). Responsibilities Performs programming and technical work for website and Internet development. Minimum Education/Certification Requirements Bachelor's degree in IT or related field or equivalent experience. Skill Assessment 16+ yrs. performing specialized (often advanced) programming and technical development for the Internet – 16 Years. Bachelor's degree in Computer Science, Information Technology, or a related field (equivalent experience may be substituted) – 16 Years. At least three (3) years of hands‑on Drupal development (Drupal 7 and 9, 10, or 11 required) – 3 Years. Demonstrated proficiency in PHP, HTML5, CSS3, JavaScript, and Twig – 3 Years. Experience with Composer, Drush, Git, and MySQL/MariaDB – 3 Years. Working knowledge of Section 508 and WCAG 2.1 AA accessibility standards – 3 Years. Acquia Certified Developer or Site Builder credential – 3 Years. Highly desired: Experience with headless/decoupled Drupal (JSON:API, GraphQL). Highly desired: Familiarity with Acquia Cloud, Pantheon, or AWS hosting environments. Highly desired: Prior experience supporting District, state, or federal government web platforms. Highly desired: Knowledge of DevSecOps, CI/CD pipelines, and Docker. #J-18808-Ljbffr
- ...Short Description: OCTO requires the services of a contractor Web Developer with strong Drupal expertise to support the development, maintenance, and modernization of District government websites, including DC.gov and associated agency digital properties. Complete...SuggestedContract workFor contractorsCasual workLocal area
- ...Job Description Job Description R&K Solutions, Inc. is seeking a motivated and qualified licensed master Heating, Ventilation, Air Conditioning (HVAC) technician to perform on-site facility inventory and condition assessments for a Dept. of War (DoW) client, conforming...SuggestedFor contractorsRemote workFlexible hours
- ...reimagining with our customer how outcomes can be achieved. Our team of technologists leverage modern, agile methods to design and develop equitable, accessible, and innovative data and software services that impact hundreds of millions of people. As a member of the...SuggestedLocal area
$84 - $93 per hour
...Information Assurance and Security Specialist - Master Hybrid, full-time position.... ...actions; • Extensive experience in developing strategic systems architecture plans... ...entertainment, ERP Solutions, data warehousing, Web Applications, Telecommunications and medical...SuggestedHourly payPermanent employmentFull timeWork from homeFlexible hours- ...R&K Solutions, Inc. is looking for a qualified licensed master HVAC technician to conduct on-site assessments across multiple DoW facilities in Virginia. The successful candidate will assess condition and compliance of HVAC systems and components, document findings in...SuggestedFlexible hours
- ...quality services and building exceptional teams that support critical government missions Agile Business Concepts is seeking a licensed Master's Level Clinician to provide counseling, case management, and behavioral health support services to justice-involved individuals....For contractors
- ...Job Opening: Master’s Level Clinician for Court Services and Offender Supervision Agency (CSOSA) in Washington, DC Key Responsibilities... ...psychotherapy and grief and loss counseling to supervisees, developing treatment plans and progress reports in collaboration with each...
- ...Agile Business Concepts is seeking a licensed Master's Level Clinician to provide essential counseling, case management, and behavioral health services to justice-involved individuals. The ideal candidate will facilitate individual and group therapy sessions, implement...
$56 per hour
...Master's Level Clinician – Washington, D.C. Work Location Court Services and Offender Supervision Agency 633 Indiana Ave NW Washington... ...services to support patient rehabilitation and well-being. Develop, implement, and monitor treatment plans, documenting clinical findings...Hourly payFull timeFor contractorsLocal areaTrial periodMonday to Friday$49.55 per hour
...Tribes of Alaska. Together We Grow – One Mission, One Team – With a Commitment to Serve Subsidiary: T&H Services Job Title: Master Plumber Work Location: NSA Bethesda Labor Category: Full-Time | Non-Exempt | CBA (Union-Represented) Clearance Level: N/A...Hourly payFull timeContract workTemporary workLocal areaImmediate startFlexible hoursShift work- ...JOB TITLE: Licensed Master Electrician SUMMARY: The Licensed Master Electrician will maintain all electrical distribution, fixtures... ...to support their professional growth. Stay updated on industry developments, codes, and standards to ensure compliance and enhance skills...For contractorsApprenticeshipLocal areaImmediate startFlexible hoursShift workAfternoon shift
- ...A government services provider is seeking a qualified Master Electrician in Washington, DC. The role involves managing condition monitoring, preventive maintenance, and repairs on electrical systems throughout the facility. Candidates should have a Master Electrician...
- ...reliable, and code-compliant electrical system performance at the United States Naval Observatory (USNO) in Washington, DC. As DAWSON’s Master Electrician, you will perform diagnostics, repair, and preventive maintenance on mission‑critical power systems and electrical...Contract workFor contractorsFlexible hours
- ...is seeking an Agile Scrum team member for software development in Washington, D.C. As part of the Amivero team, you will design and develop equitable and innovative software solutions for government clients. The role requires proficiency in REACT, JavaScript, and mobile...
- ...Government Services company, is looking for a highly qualified, experienced and self-motivated individual to perform the duties of a Master Electrician in Washington, DC. This position is for a future business opportunity. All benefits will be provided by the CBA....Contract workLocal area
- ...Dawsonohana is seeking a Master Electrician in Washington, DC. The role involves ensuring reliable electrical system performance at the United States Naval Observatory by performing diagnostics, repairs, and maintenance on critical power systems. Candidates should have...
$60.5k - $76.05k
Primary Purpose of Position: Assist Property Management with the day-to-day operations and client relations of assigned property or portfolio through the coordination of client requests and administration of maintenance services. Serve as the primary point of contact...Contract workFor contractorsWork at officeLocal areaImmediate start- ...DAWSON is seeking a Licensed Master Electrician in Alexandria, VA. This role requires maintaining electrical systems, troubleshooting, and ensuring compliance with safety codes. Candidates need a minimum of 5 years experience in the electrical trade. The position offers...
- Property Technician VI (5689) Location Bethesda, MD Job Code 5689 # of Openings 5 Apply Now ( Kiliuda Consulting, LLC a federal contracting leader is looking for a Property Technician to join our team in Bethesda, MD. Responsibilities: Plans and executes...For contractorsLocal area
- AHU Technologies Inc is seeking a BSA - Master located in Washington, DC with a hybrid work option. The role requires 16 years of experience in business analysis, focusing on solving business problems and optimizing processes. The successful candidate will analyze business...Work from homeFlexible hours
- Job Description: Short Description: Information Assurance and Security Specialist - Master Complete Description: The Security Engineer role will focus on designing and developing security architecture patterns that meet regulatory obligations and data protection requirements...Work experience placementRemote workWork from homeFlexible hours
$20 - $30 per hour
...Title: Vendor Master Data Specialist Type: Contract To Hire Location: Washington, D.C Compensation:· $20–$30/hr Benefits: This position is eligible for medical, dental, vision, 401k, and PTO Schedule: Mon–Fri, 8AM–5PM 5 days on site About the role...Permanent employmentContract workLocal areaRemote work- ...Campus Planner (Master Planner) (Secret Clearance) The Building People delivers integrated solutions that connect technology, buildings... ...Secret Clearance. Key responsibilities include: Develop master plans and schedules Analyze space and operational needs...Temporary workRemote workFlexible hours
- TITLE: BSA - Master LOCATION: Washington, DC/ Hybrid Employment type: Contract w2/1099/C2C MINIMUM EDUCATION: Bachelor’s degree in IT... ...requirements to the technical specialists/application/database developers and project managers. · The Business Analyst shall be able to make...Contract workWork from homeFlexible hours
- Looking to build on your career in property management? Love events and amenities, and looking for a property management firm that embraces these for their customers? THEN this is the job for YOU!! Internationally recognized commercial property management firm that has...
- Job Title Skill - Required /Desired - Amount - of Experience Bachelor's degree in IT or related field or equivalent experience - Required - 20 Years 16+ yrs. installing and configuring system hardware/software in an enterprise environment - Required - 16 Years ...Hourly pay
- ..., conducting spatial analyses, and configuring low code/no code web-based maps and applications for various projects across city agencies... ...data. -Support Ad-Hoc requests from various DC Agencies to develop Geospatial Products and Supporting Documentation. -Perform...Contract workWork at office
- ...TITLE: System Administrator Master LOCATION: Washington, DC/Onsite Employment type: Contract w2/1099/C2C MINIMUM EDUCATION: Bachelor’s degree in IT, related field, or equivalent experience. REQUIRED EXPERIENCE: 16 years INTERVIEWS: Either Webcam or In Person...Contract work
- First-Line Tech Support Provides first-line tech support for District employees, ensuring quick IT issue resolution and strong customer service. Maintains reliable access to technology, troubleshoots hardware and software, and escalates complex problems as needed ...Remote work
- ...TITLE: Helpdesk Specialist Master LOCATION: Washington, DC/Onsite Employment type: Contract w2/1099/C2C MINIMUM EDUCATION: Bachelor’s degree in IT, related field, or equivalent experience. REQUIRED EXPERIENCE: 11 years INTERVIEWS: Either Webcam or In Person...Contract workRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Web Developer Master. Be the first to apply!
- web associate Washington DC
- website content developer Washington DC
- junior web developer no experience Washington DC
- virtual web developer Washington DC
- freelance web developer no experience Washington DC
- web production specialist Washington DC
- senior content developer Washington DC
- web developer specialist Washington DC
- software web developer Washington DC
- senior web developer Washington DC



