UC Systems Administrator

Systems Administrator

Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

At GDIT, people are our differentiator. As a Systems Administrator you will help ensure today is safe and tomorrow is smarter. Our work depends on Systems Administrator joining our team to continue delivering unified communications for our Federal Aviation Administration customer.

HOW A SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT
● Manages the functionality and efficiency of a group of UC systems running on one or more operating systems.

Key Responsibilities:

• Deploy, configure, and maintain Microsoft Windows Server systems supporting UC workloads.
• Manage core infrastructure services (Active Directory, DNS, DHCP, GPOs) critical to UC operations.

• Support hybrid identity solutions (Azure AD Connect, ADFS) and their role in Microsoft 365 and Teams.
• Maintain and troubleshoot Systems supporting Microsoft Teams, and other Windows Server system supporting UC applications.
• Maintain Virtual Desktop Infrastructure based on modern hypervisor technology.
• Maintain Server OS on hypervisors based on various solutions, ESXi, ProxMox, OpenShift.
• Script and automate provisioning, compliance checks, and monitoring tasks with PowerShell.
• Collaborate security teams and application owners to enforce technical baselines for real-time communications platforms.
• Ensure high availability and disaster recovery preparedness of UC-supporting infrastructure.
• Maintain detailed technical documentation for systems, integrations, and change controls.

Security & Compliance Responsibilities:

• Ensure compliance with corporate security policies, industry standards (e.g., CIS and STIG).
• Apply OS and application hardening in accordance with organizational baselines and best practices (e.g., CIS Benchmarks, DISA STIG).
• Participate in vulnerability scanning and remediation efforts across UC-supporting Windows systems.
• Implement and manage patch management processes to ensure timely remediation of security vulnerabilities.
• Monitor privileged access and enforce least privilege across UC and infrastructure systems.
• Manage TLS/SSL certificates, PKI infrastructure, and secure communications configurations for UC applications.
• Assist with incident response, root cause analysis, and containment of security events related to Windows-based UC infrastructure.

WHAT YOU’LL NEED TO SUCCEED:
● Education:

• Associate’s degree in Information Technology or related field, or equivalent experience.

● Required Experience:

• 4+ years of experience supporting enterprise Windows Server environments in a production context.

● Required Technical Skills:

• Proficient in Active Directory, PowerShell, and Windows infrastructure services.
• Understanding of basic security frameworks and hardening guidelines (e.g., STIG, CIS, NIST 800-53).
• Experience with patch management, endpoint protection, and change control in regulated environments.

● Security Clearance Level: Public Trust (Agency Specific)
● Preferred Skills: Gov, DoD, FAA environment experience

● Location: On Customer Site - OKC, OK

GDIT IS YOUR PLACE:
● 401K with company match
● Comprehensive health and wellness packages
● Internal mobility team dedicated to helping you own your career
● Professional growth opportunities including paid education and certifications
● Cutting-edge technology you can learn from
● Rest and recharge with paid vacation and holidays