Senior IT Systems Engineer: Security Operations (DoD)

Strativia; Washington (District of Columbia); On-site; USD 120,000 - 180,000; Full time

Job summary

Strativia in Washington, DC seeks a Senior Information Technology Systems Engineer to manage day-to-day systems, security, and user-support operations within a secure DoD environment. You will lead technical-support activities, handle ticket resolution, endpoint troubleshooting, patching, vulnerability remediation, incident response, and compliance with DoD cyber requirements.

The role serves as a senior escalation point for complex systems and security issues, focusing on Windows, macOS, and

Qualifications

• Degree in Cybersecurity, Information Systems, Information Technology, Computer Science, Computer Engineering, or a related field.
• Minimum of 10 years of experience administering Windows, macOS, and Linux environments.
• Experience implementing Department of Defense Security Technical Implementation Guides and Information Assurance Vulnerability Alerts.
• Must be able to obtain and maintain a SECRET security clearance.

Responsibilities

• Lead daily systems-administration, cybersecurity, and technical-support activities.
• Serve as an escalation point for complex hardware, software, endpoint, and application issues.
• Administer Windows, macOS, and Linux systems and servers.
• Provide technical support to end users and resolve assigned service tickets.
• Install, configure, patch, upgrade, and troubleshoot operating systems and applications.
• Implement and maintain Department of Defense Security Technical Implementation Guides.
• Review and remediate Information Assurance Vulnerability Alerts.
• Perform vulnerability scanning and compliance validation using ACAS and SCAP tools.
• Support cybersecurity incident-response activities and escalate security concerns when appropriate.
• Troubleshoot endpoint communication, application, authentication, and access issues.
• Implement and maintain Windows Administrative Templates and Group Policy configurations.
• Support Active Directory, user accounts, system permissions, and related administrative functions.
• Perform system backups, recovery planning, restoration, and continuity-support activities.
• Administer DoD CAC PKI tools including ActivClient, Centrify, and CAC Key.
• Maintain patch schedules and ensure systems remain current with approved security updates.
• Track technical incidents, vulnerabilities, corrective actions, and resolution status.
• Maintain system records, user-account databases, host inventories, and security documentation.
• Develop and update technical procedures, troubleshooting guides, and standard operating procedures.
• Coordinate with cybersecurity personnel, system owners, and technical teams to resolve issues.
• Support continuous improvement through analysis of service-ticket trends, recurring problems, and security findings.

Education

Degree in Cybersecurity, Information Systems, Information Technology, Computer Science, Computer Engineering, or a related field

Job description

Strativia in Washington, DC seeks a Senior Information Technology Systems Engineer to manage day-to-day systems, security, and user-support operations within a secure DoD environment. You will lead technical-support activities, handle ticket resolution, endpoint troubleshooting, patching, vulnerability remediation, incident response, and compliance with DoD cyber requirements.

The role serves as a senior escalation point for complex systems and security issues, focusing on Windows, macOS, and