Overview XMSTART is always looking to add experienced and strategic full-time Systems Engineers to our team, in Chantilly, VA or Washington, DC . These positions are 100% onsite . Security Clearance Requirements Active TS/SCI with Polygraph
(SOO) Intelligence Operations Support Principal (TS/SCI with Poly Required) Job Category: Intelligence Operations and Analysis Requisition Number: INTEL Full-Time On-site Salary Range: $107,744 USD to $179,940.80 USD Location Chantilly, Chantilly, VA, USA Description GCI embodies excellence,
AI/ML Software Engineer Senior (TS/SCI with Poly Required) Job Category: Data Science and Data Engineering Requisition Number: AIMLS Full-Time On-site Salary Range: $124,092.80 USD to $207,251.20 USD GCI embodies excellence, integrity and professionalism. The employees supporting
Software Engineer Senior (Security Clearance Needed) Job Category: Software Engineering Requisition Number: SOFTW Posted: July 6, 2026 | Full‑Time | On‑site | Salary Range: $107,744 USD to $179,940.80 USD The Software Engineer will design and develop
Clinic Director Job Description A Winchester-based outpatient clinic is hiring a full-time Clinic Director . This position offers the opportunity to provide focused one-on-one care while helping lead clinical services for the location. You will evaluate
(Cyber Operations Coordinator) Cyber Technical Analyst Sr Advisor (TS/SCI with Poly Required) Job Category: Cyber Security Requisition Number: TECHN Posted: January 28, 2026 Full-Time Salary Range: $142,792 USD to $238,451.20 USD Locations Showing 1 location Chantilly
Software Developer Principal (Security Clearance Needed) Job Category : Software Engineering Requisition Number : SOFTW Posted: July 6, 2026 Full-Time On-site Salary Range: $124,092.80 USD to $207,251.20 USD Locations Chantilly Chantilly, VA, USA Description At GCI,