New

TS/SCI Cleared Full Stack Developer

Celestar Corporation
$150,000 - $200,000
United States, D.C., Washington
Oct 22, 2026
Apply Job Type Full-time Description As a Senior Full-Stack Developer , you'll be shaping a collaboration software platform based on the popular, open-source Drupal Content Management System and other open-source software products. You'll support multiple deployments of this system, each providing important capabilities for a broad array of missions. You'll be able to engage directly with the user community and customer leadership to learn how the system impacts them, capture and validate requirements, influence architecture and design decisions, and demonstrate new features. You'll work with an existing team of talented developers and system support staff, with opportunities to learn from senior-level peers, assist and mentor junior developers, and initiate improvements to the development environment, build pipelines, test automation, and other processes. Requirements Eligibility for TS/SCI with CI Polygraph Clearance, which requires U.S. citizenship. Experience with frontend development using JavaScript and/or TypeScript Proficiency in building secure, reliable web applications on Linux servers Experience with relational database systems (e.g., PostgreSQL) Knowledge of, and experience with, Git workflows, continuous integration, and DevOps practices Desired Qualifications Experience working in Agile / Scrum teams Experience developing PHP-based web applications Experience with frontend frameworks such as Vue, Angular, React, etc. Experience working with NoSQL or document-based databases (e.g., Elasticsearch) Knowledge of web accessibility and user experience design Experience applying Site Reliability Engineering practices Strong technical documentation and presentation skills Education Requirements 9 Years of experience in Software or Systems Engineering roles or a highly related field of work with similar scope and responsibilities. A Bachelor's degree may be substituted for 4 years of experience and a Master's Degree may be substituted for 6 years of experience. Salary Range: $150,000 - $200,000 Work location: Annapolis Junction, MD Washington, DC Reston, VA Salary Description $150,000 - $200,000