Systems Administrator - Infrastructure Engineer - HHS STIM

Job DescriptionJob Description

cFocus Software is seeking a highly skilled Systems Administrator – Infrastructure Engineer to support the Security Tools and Infrastructure Modernization (STIM) contract with the U.S. Department of Health and Human Services (HHS). The Systems Administrator will provide enterprise-level expertise in Windows and Linux system administration, Active Directory management, virtualization, automation, and disaster recovery solutions. The successful candidate will ensure the availability, security, and performance of infrastructure systems across hybrid cloud and on-premises environments.

Responsibilities

• Administer and maintain Active Directory, Group Policy, DNS, DHCP, TCP/IP (IPv4/IPv6), and certificate services.

• Manage, optimize, and troubleshoot Windows Server and Red Hat Linux systems for reliability, security, and performance.

• Configure and maintain server clustering and virtualization platforms (VMware, Hyper-V).

• Design and implement automation solutions using Bash, Perl, Python, JavaScript, PowerCLI, and PowerShell.

• Support disaster recovery and backup strategies, including hybrid cloud solutions (CommVault Metallic Backups).

• Manage and deploy OS updates, upgrades, security patches, and enterprise software across physical and virtual environments.

• Troubleshoot and resolve LAN/WAN connectivity, performance, and throughput issues.

• Collaborate with cross-functional teams to support enterprise IT modernization projects.

• Maintain detailed system documentation, SOPs, and configuration records.

• Ensure compliance with CIS Controls, NIST SP 800-53 Rev. 5, and DISA STIGs.

• Provide mentorship to junior team members and serve as a subject matter expert for infrastructure-related challenges.

• Participate in 24/7/365 on-call rotations as required.

Required Experience

• 8+ years of experience in enterprise systems administration and IT infrastructure management.

• Expertise in Active Directory, Group Policy, certificate services, DNS/DHCP, TCP/IP, Windows, and Red Hat Linux.

• Strong background in server administration, virtualization, and clustering.

• Experience with hybrid cloud backup and disaster recovery solutions.

• Proficiency in scripting and automation using Bash, Python, Perl, PowerShell, or PowerCLI.

• Knowledge of federal security hardening standards (CIS Controls, NIST SP 800-53, DISA STIGs).

• Proven ability to analyze requirements, implement solutions, and optimize enterprise infrastructure.

Education & Certifications

• Bachelor’s degree in Computer Science, Information Systems, Cybersecurity, or related field (or equivalent combination of education and experience).

• Must hold and maintain one or more of the following certifications:

  • Microsoft Certified: Windows Server Hybrid Administrator Associate

  • Red Hat Certified Engineer (RHCE)

  • VMware Certified Professional – Data Center Virtualization (VCP-DCV 2024)

  • Or higher-level IT/InfoSec related certification

Clearance Requirement

• Must be eligible to obtain and maintain a Public Trust (High-Risk, Level 5) clearance.

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