Janus Soft is seeking an elite Senior Systems Engineer to support high-priority defense and intelligence missions. In this role, you will lead complex systems engineering and administration initiatives across hybrid Windows and Linux environments, maintaining robust infrastructure, virtualized clusters, and databases crucial to national security operations. You will play a pivotal role in driving Assessment and Authorization (A&A) processes to accredit security-controlled systems, ensuring high availability, security, and integrity across mission-critical infrastructure.

Note: This position is currently located in Dulles, VA, but will relocate to HQ/McLean, VA in the Fall of 2026.

Mandatory Skills

• Security Clearance: Active TS/SCI with Full Scope Polygraph (FSP) is required.

• Windows Engineering & Administration: Proven experience managing Windows Server environments (Server 2016, 2019, 2022) and Windows desktop operating systems (Windows 10, 11).

• Database & Directory Services: Hands-on experience with MSSQL databases and Active Directory Certificate Services (ADCS).

• Virtualization & Backup: Demonstrated experience configuring and maintaining VM clusters, Hyper-V, VMware virtualization, and Data Protection Manager.

• Automation & Scripting: Strong PowerShell scripting skills for system automation and administration.

• Linux Engineering & Administration: Demonstrated experience engineering and administering Enterprise Linux systems.

• Cybersecurity Accreditation: Proven track record executing Assessment and Authorization (A&A) processes to accredit complex, security-controlled systems.

• Systems Management: Proficiency with Microsoft Group Policy Management and Windows Server Update Services (WSUS).

Desired Skills

• Specialized Security Systems: Experience with CipherTrust enterprise hardware security modules (HSMs), software, data architecture, and Sponsor-specific security-controlled systems.

• Data Handling: Experience acting as a Data Transfer Officer (DTO) managing sensitive data transfers within high-security environments.

• Linux & DB Certification: Experience as an Oracle Linux Systems Administrator and possession of an Oracle Certified Professional (OCP) Database Administrator certification.

• Networking & Hardware: Hands-on experience with Cisco switches and security appliances (including ASAs, StealthWatch, and Tetration) and managing NetApp Storage Area Networks (SANs).

• Certificate Management: Strong operational experience managing certificates for users, servers, and service accounts.

• Program Support & Leadership: Background in IT Program Management and support, along with a track record of cross-skilling and backfilling teammates.

• Security & Discretion: Demonstrated experience handling highly sensitive data with discretion, sound judgment, and a strong commitment to mission outcomes.