Senior Information Technology Systems Engineer– Systems and Security Operations

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

Job Purpose: The Senior Information Technology Systems Engineer manages day-to-day systems, security, and user-support operations within a secure Department of Defense environment. This role leads technical-support activities involving ticket resolution, endpoint troubleshooting, system patching, vulnerability remediation, incident response, and compliance with Department of Defense cybersecurity requirements. The position serves as a senior escalation point for complex systems and security issues.

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 Assured Compliance Assessment Solution and Security Content Automation Protocol 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 Department of Defense Common Access Card Public Key Infrastructure 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 and Experience:

• Degree in Cybersecurity, Information Systems, Information Technology, Computer Science, Computer Engineering, or a related field.
• Equivalent professional experience may be considered.
• Minimum of 10 years of experience administering Windows, macOS, and Linux environments.
• Demonstrated experience providing help-desk, systems-administration, or security-operations support.
• Experience implementing Department of Defense Security Technical Implementation Guides and Information Assurance Vulnerability Alerts.
• Experience with Assured Compliance Assessment Solution and Security Content Automation Protocol scanning.
• Experience supporting cybersecurity incident-response and vulnerability-remediation activities.
• Experience troubleshooting endpoints, applications, user accounts, and network communications.
• Knowledge of Windows Administrative Templates and Group Policy.
• Experience with Department of Defense Common Access Card Public Key Infrastructure tools.
• Familiarity with Naval Research Laboratory Security Technical Implementation Guide requirements.
• Strong technical troubleshooting, documentation, customer-service, and communication skills.
• Security+, Information Technology Infrastructure Library, or comparable certifications are strongly valued but not required.
• Must be able to obtain and maintain a SECRET security clearance.

Strativia understands that our staff is our number one asset. Therefore, we provide competitive salaries and health benefits along with a robust training and development plans to help ensure that our employees are happy and motivated. Strativia is an Equal Opportunity Employer. Strativia in accordance with applicable law, does not discriminate in hiring or otherwise in employment on the basis of race, color, religion, sex, national origin, age, marital or veteran status, disability, sexual orientation, or any other legally protected status. EOE/AA/Vets