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Keywords: Open Systems Technologies Corporation, Location: Chantilly, VA

Page: 1

Citrix Systems Engineer

Required Certification: DOD 8140 (Security+) Job Description: The OST Spatial Solutions team has an exciting opportunity for a Systems... Engineer with Citrix/NetScaler and Windows system administration experience to work on cloud-based systems supporting mission...

Posted Date: 30 Jan 2026

Senior Cyber Security Engineer

posture across DoD systems. Responsibilities include but are not limited to: Engineer, design, implement, integrate..., or coordinate information Support Assessment and Authorization activities related to cybersecurity technologies, where applicable...

Company: ManTech
Location: Chantilly, VA
Posted Date: 31 Jan 2026

Counterintelligence Analyst

Justice, Space Systems, or Political Science. Knowledge of customer satellite systems and technologies. All-source analyst... and open-source information to conduct research and analysis required to develop new and/or update previous analytical products...

Company: ManTech
Location: Chantilly, VA
Posted Date: 28 Jan 2026

Principal Cyber Security Engineer

posture across DoD systems. Responsibilities include but are not limited to: Engineer, design, implement, integrate..., or coordinate information Support Assessment and Authorization activities related to cybersecurity technologies, where applicable...

Company: ManTech
Location: Chantilly, VA
Posted Date: 23 Jan 2026

AI Application Architect

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through... with strict access control and governance. Ensure interoperability with multiple cloud providers, open-source software, GOTS...

Company: ManTech
Location: Chantilly, VA
Posted Date: 23 Jan 2026

Senior Principal Cyber Security Engineer

to cybersecurity technologies where applicable. Minimum Qualifications: A Bachelor's degree or 4+ additional years of cyber... experience in lieu of a degree 10+ years of cyber experience Experience with technologies involved in large-scale enterprise...

Company: ManTech
Location: Chantilly, VA
Posted Date: 23 Jan 2026