Application Developer SME (TS/SCI) – Mission-Critical Data

GCI in Chantilly, VA seeks an Application Developer SME (TS/SCI with Poly Required) to support data analytics and software development across mission systems. The role emphasizes full lifecycle development, security-focused design, and collaboration with cross-functional teams in a high-security environment.

The candidate will work on ServiceNow, Cognos, Oracle SQL, TM1, .NET MVC, Ruby on Rails, and cloud infrastructure, ensuring accessibility and compliance with ICD-503 processes while