Systems Administrator Security Clearance

Position: Systems Administrator with Security Clearance
System Administrator – Top Secret Clearance | Charleston, SC Cambridge International Systems, Inc. Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you’ll work alongside top talent worldwide, tackling some of today’s most complex and critical challenges in defense and security. We are currently seeking a System Administrator to support operations in Charleston. This is a full-time, CONUS position requiring an active DoD Top Secret clearance.

This position may be subject to the Service Contract Labor Standards Act (SCLS)/Service Contract Act (SCA). What You’ll Do Install and maintain IT systems, including hardware, software, network accounts, operating system upgrades, and local web interfaces. Ensure proper documentation of system configurations and support local system design initiatives. Administer and support cybersecurity tools, including the configuration, maintenance, and troubleshooting of firewalls, antivirus software, intrusion detection/prevention systems (IDS/IPS), and other security technologies to protect network integrity.

Provide user support and training, assisting staff with IT-related issues, software usage, and system navigation. Deliver technical instruction tailored to user roles and responsibilities to improve productivity and system understanding. Perform Windows operating system support, including installation, configuration, patching, and troubleshooting of both desktop and server environments to maintain system stability and security. Utilize Active Directory for account management, including user login assistance, password resets, group membership changes, and general administration of user accounts and permissions.

Support basic networking functions, with a working knowledge of IP addressing, DNS, and how network-related issues affect virtual desktop infrastructure (VDI) and user connectivity. Troubleshoot technical issues using diagnostic tools such as log files, event history, and version tracking systems to identify root causes and apply effective resolutions. Manage software patching and updates, applying security patches and performance fixes to reduce vulnerabilities and ensure systems remain compliant with organizational and security policies.

Oversee end-user device management, including configuration, deployment, and support of workstations, laptops, mobile devices, and peripheral hardware to ensure seamless user operations.

What You’ll Bring

Required Qualifications:

Education & Experience:

Bachelor’s degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems or higher Minimum seven (7) years experience with Master’s or 11 years with Bachelor’s degree of professional experience in systems administration to include supporting daily operational requirements of computer network systems including workstation, file servers, and web servers Technical Expertise:
Experience installing and maintaining hardware, software, operating systems (including Windows OS), and performing system upgrades and patch management. Proficient in basic networking concepts (e.g., IP addressing, DNS) and their impact on system performance and virtual desktop environments. Familiarity with Active Directory functions, including user account management and password resets. Skilled in deploying and managing cybersecurity tools such as firewalls, antivirus, and intrusion detection/prevention systems (IDS/IPS).

Strong troubleshooting abilities using log files, event history, and version control to resolve system and network issues. Capable of providing end-user support and training, including technical assistance and guidance on software and system usage. Knowledge of end-user device management, including setup, configuration, and support of desktops, laptops, and peripherals.

Certifications:

Must have a current and active DoD Top Secret security clearance. Cybersecurity workforce certification/training in accordance with DoD 8570.1M and subsequent DoD 8140 manual, as applicable. (i.e. CompTIA A+ CE, Network+ CE, Security+ CE, CISSP, and GSEC) Proficient with modern IT tools and infrastructure…