System Administrator

Who We Are

Oasys International LLC (Oasys) is a fast‑growing federal government contractor delivering high‑quality technology consulting and professional services to civilian, defense, and homeland security agencies. We have been recognized on Inc. 5000's list of the fastest‑growing companies in America for five consecutive years and named a Best Places to Work in Virginia for the past two years.

Our success is driven by a talented team of technologists, consultants, engineers, and subject‑matter experts who support complex federal missions with integrity and excellence. At Oasys, we foster a collaborative, merit‑based culture that values continuous learning, professional growth, and work‑life balance. We are committed to creating an inclusive, engaging environment where employees are recognized for their contributions and empowered to build meaningful, long‑term careers.

The System Administrator will support the Air Force Review Boards Agency (AFRBA) Case Management Tracking Analysis and Reporting System (CMTARS) Operations and Maintenance program. This role is responsible for administering, maintaining, and supporting the infrastructure and application environments supporting the CMTARS platform.

The System Administrator will manage system operations across the Development, Staging, and Production environments hosted in a secure DoD cloud. The position requires experience with Open Text Directory Services (OTDS), Active Directory, and cloud‑based system administration, with a strong focus on maintaining secure and compliant environments aligned with DoD cybersecurity standards and STIG hardening requirements.

NOTE:
This role is contingent on the contract being awarded.

• Operate, maintain, and administer system infrastructure supporting the CMTARS application environment, including application administration, system security, and web administration.
• Provide system architecture and operational support for Development, Staging, and Production environments.
• Manage and maintain Open Text Directory Services (OTDS) and Active Directory integrations supporting authentication and access control.
• Monitor system performance and availability across cloud‑hosted infrastructure.
• Respond to production incidents and system outages, assisting in recovery and restart of services to restore operations.
• Perform system troubleshooting and root cause analysis for infrastructure and application issues.
• Implement and maintain security configurations and system hardening measures in accordance with DoD Security Technical Implementation Guides (STIGs).
• Apply security patches, configuration updates, and system maintenance activities to ensure system stability and compliance.
• Support system configuration management and documentation related to infrastructure and system architecture.
• Collaborate with software developers, project management staff, and end‑user support teams to ensure system availability and performance.
• Maintain system documentation including configuration baselines, operational procedures, and security controls.
• Participate in system testing, upgrades, and release activities supporting program operations.
• All other duties as assigned by management.

• Strong experience administering enterprise systems in secure cloud‑based environments.
• Experience managing Open Text Directory Services (OTDS) and integrating with Active Directory.
• Knowledge of cloud system architecture and administration within DoD or federal environments.
• Experience implementing and maintaining DoD Security Technical Implementation Guides (STIGs).
• Ability to troubleshoot system infrastructure, authentication services, and application integration issues.
• Experience supporting enterprise application environments across development, staging, and production systems.
• Strong understanding of system security, access control, and identity management.
• Ability to work collaboratively with developers, system engineers, and support teams to maintain system availability.
• Excellent problem‑solving, analytical, and communication skills.

• Bachelor's degree in Information…