ECS is seeking a Senior Drupal Developer to work in our Washington, DC office.Job Description: ECS is hiring a Sr Drupal Developer who can design, code, debug, and test innovative applications for a Drupal-based Content Management in a fast-moving, cutting edge government client environment. Experience with large-scale Drupal migrations necessary.Responsibilities:Lead in the design, implementation, testing and deployment of enterprise-scale Drupal web applicationWork with others to refactor and implement complex functionality using PHP by creating custom Drupal modulesAssist with gathering requirements/dependencies for migrations from Drupal 7 to Drupal 8 and lead migration effortsLead migrations from Drupal 8 to Drupal 9 for enterprise-scale Drupal web appsShare knowledge and assist with training other developers.Think creatively and demonstrates the ability to work independently on a complex task with little direction, supervision, and management oversight.Required Skills:BA/BS, preferably in Computer Science or other related subject area (technical, analysis, or mathematics) or equivalent experienceMust successfully complete a stringent Background Investigation and obtain the required Government security clearanceSenior Developers should have at least 5+ years of experience developing with PHP, HTML, XML, CSS, Javascript, SOAP/REST web services.Experience developing with Drupal or other content management frameworks, including demonstrated custom module development and theming.Deep knowledge of Drupal development norms and application architecture a plus.Identifies and understands user and organizational requirements and context of useMust have experience in site building and large-scale migrations in Drupal.Working knowledge of a variety of production tools, technologies, and techniques for design and development, including IDEs, source control, build tools and testing frameworks.Knowledge of usability/accessibility standards of user interface development in order to produce code compliant for Section 508 accessibility; may work with development tools that aid in this process.Understanding of Service-Oriented Architecture, XML, SOAP, REST, JSON, and other Web Services technologies.Work experience with more than one relational database management system, including MySQL.ECS is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law. ECS promotes affirmative action for minorities, women, disabled persons, and veterans.ECS is a leading mid-sized provider of technology services to the United States Federal Government. We are focused on people, values and purpose. Every day, our 3000+ employees focus on providing their technical talent to support the Federal Agencies and Departments of the US Government to serve, protect and defend the American People.