Senior Full Stack Developer

Global Dimensions is seeking an experienced Senior Full Stack Developer in Annapolis Junction, MD; Washington, DC; or Reston, VA to support the development, modernization, and maintenance of a collaborative software platform built on the open-source Drupal Content Management System (CMS) and other open-source technologies. The successful candidate will support multiple system deployments that deliver essential capabilities across a wide range of government missions.

This position offers the opportunity to work directly with users and customer leadership to gather requirements, influence system architecture, and demonstrate new capabilities. The ideal candidate will have strong experience in frontend development, secure web applications, Linux environments, relational databases, and DevOps practices, along with the ability to collaborate with technical teams and mentor junior developers.

Essential Job Functions:

Design, develop, enhance, and maintain full-stack web applications built on Drupal and other open-source technologies.

Support multiple deployments of a mission-critical collaboration platform, ensuring application security, reliability, performance, and scalability.

Collaborate directly with end users, customer leadership, and stakeholders to gather requirements, identify improvements, and demonstrate new system features.

Participate in system architecture and design decisions, translating operational requirements into effective technical solutions.

Develop and maintain frontend components using JavaScript and TypeScript, ensuring responsive, accessible, and user-friendly application interfaces.

Build, integrate, and maintain secure web applications hosted on Linux servers, supporting reliable system operations.

Develop and optimize database integrations and application functionality using relational database technologies such as PostgreSQL.

Collaborate with developers and system support personnel to troubleshoot issues, resolve defects, and improve overall application performance.

Support improvements to development environments, Git workflows, CI/CD pipelines, automated testing, and DevOps processes.

Participate in code reviews, technical discussions, and Agile development activities to maintain software quality and engineering best practices.

Provide technical guidance and mentorship to junior developers while collaborating with senior engineers to enhance team capabilities.

Maintain technical documentation and communicate development progress, system enhancements, and technical recommendations to stakeholders.

Required Skills:

Due to the sensitivity of customer-related requirements, U.S. citizenship is required.

Candidates must be eligible to obtain a TS/SCI security clearance with a Counterintelligence (CI) Polygraph.

Nine (9) years of relevant experience in software engineering, systems engineering, or a closely related technical field with comparable responsibilities.

Education substitution: A bachelor's degree may substitute for four (4) years of experience, and a master's degree may substitute for six (6) years of experience.

Experience developing frontend applications using JavaScript and/or TypeScript.

Proficiency designing, developing, and maintaining secure, reliable web applications in Linux environments.

Experience working with relational database systems, including PostgreSQL or comparable technologies.

Knowledge of and practical experience with Git workflows, continuous integration, and DevOps practices.

Strong analytical, troubleshooting, problem-solving, and communication skills.

Ability to collaborate effectively with developers, system administrators, customers, and other technical stakeholders.

Desired Skills:

Experience working in Agile or Scrum software development environments.

Experience developing and maintaining PHP-based web applications, preferably using Drupal.

Familiarity with modern frontend frameworks, including Vue.js, Angular, or React.

Experience with NoSQL, document-oriented databases, or search platforms, such as Elasticsearch.

Knowledge of web accessibility standards, responsive design, and user experience (UX) principles.

Experience applying Site Reliability Engineering (SRE) practices to improve application availability, performance, and operational stability.

Strong technical documentation, presentation, and stakeholder communication skills.