Systems Administrator II (SD)

Apex Systems is currently seeking a Systems Administrator II to support a Department of Defense customer in San Diego, CA. This individual will be responsible for maintaining, securing, and optimizing enterprise IT systems and infrastructure in a highly secure environment. The ideal candidate will have hands-on experience administering Active Directory, supporting Windows-based systems, managing DoD PKI credentials, and ensuring compliance with DISA STIG requirements., * Administer and maintain Microsoft Active Directory environments, including:

• Active Directory Users and Computers (ADUC)
• DNS
• Group Policy Objects (GPO)
• Windows Server Update Services (WSUS)
• Manage user accounts, security groups, permissions, and identity access controls.
• Support Public Key Infrastructure (PKI) operations, including CAC and DoD certificate management.
• Perform system maintenance activities including backups, recovery procedures, and file management.
• Install, configure, test, and maintain operating systems, software, and hardware upgrades.
• Troubleshoot and resolve system, software, hardware, and network-related issues.
• Monitor system performance and ensure overall availability and reliability.
• Support security and compliance initiatives through implementation and remediation of DISA STIG requirements.
• Assist with VPN, network, and email administration.
• Maintain documentation for system configurations, procedures, and operational support activities.
• Support licensing management, patching efforts, and backup solutions.

• Active Secret Clearance.
• IAT Level II Certification (one of the following):
• CompTIA Security+
• CySA+
• SSCP, * Bachelor’s degree in Information Technology, Computer Science, or a related field (or equivalent experience).
• 3+ years of Systems Administration experience.
• Experience administering Windows Server environments.
• Strong Active Directory administration experience, including ADUC, DNS, GPO, and WSUS.
• Experience with system backups, recovery processes, and troubleshooting.
• Familiarity with DoD cybersecurity requirements and compliance standards.

Preferred Qualifications

• Experience supporting Navy, NIWC, or other DoD environments.
• Hands-on experience with DoD PKI and CAC management.
• Experience implementing and remediating DISA STIGs.
• Knowledge of VPN administration, network infrastructure, and email systems.
• Experience with enterprise backup and security tools.

Key Skills

• Active Directory Administration
• Windows Server Administration
• DNS, GPO, WSUS
• PKI / CAC Management
• DISA STIG Compliance
• System Monitoring & Troubleshooting
• Backup & Recovery
• VPN & Network Administration
• Identity & Access Management
• Technical Documentation

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

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