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 technologies
Travel & Passport
- Up to 3 or 4 weeklong trips per year. CONUS Travel.
Work Environment
- Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR | Health.mil.
Office setting:
- Primarily an office-based role in Charleston, SC
- Standard desk/computer work with flexibility for walking and movement on site
- Must be able to work in an office environment, sitting at a desk, looking at a computer for most of the workday.
- Work is physically comfortable; the employee has discretion about sitting, walking, standing, etc.
- May be required to travel short distances to offices/conference rooms and buildings on site.
Background & Security
- Employment is contingent upon successful background investigation
- Drug screening may be required for federal contract compliance
Benefits & Perks
We believe in investing in our team—both professionally and personally:
- Medical, dental, vision, life, accident, and critical illness insurance
- 401(k) immediate vesting and match
- Paid time off and company holidays
- Generous tuition & training support
- Relocation assistance
- Sign-on and performance-based bonuses
- Employee referral program
- Access to Tickets at Work, EAP, wellness initiatives, and more
Join Us
If you're driven by mission, technology, and teamwork—we want to hear from you. Cambridge is growing, and this position is just one of many opportunities on our global team. Know someone perfect for the role? Referrals are welcome—both employees and non-employees may qualify for a bonus.
Apply today and help shape the future of secure cloud computing for national security.
About Cambridge International Systems
At Cambridge, innovation grows through diversity. We are proud to be an equal opportunity employer, committed to creating an inclusive and supportive work environment for all. Learn more at www.cbridgeinc.com.
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