Senior Systems Administrator (TS/SCI night shift) with Security Clearance

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Job Overview

The Senior Systems Administrator (TS/SCI night shift) at Marathon TS plays a crucial role in managing and maintaining the organization's systems to ensure optimal performance during nighttime hours. This position requires a qualified individual with a current TS/SCI clearance who will be responsible for the administration of server and network systems, troubleshooting issues, and implementing efficient solutions. The Senior Systems Administrator will collaborate with other IT professionals to ensure system integrity and security and will serve as a point of technical escalation for incidents that require advanced troubleshooting skills.

Job Responsibilities

• Administer and maintain Windows and Linux-based servers and related hardware.
• Monitor system performance, perform regular system backups, and ensure data integrity and security protocols are adhered to.
• Implement changes and upgrades to infrastructure while minimizing downtime and impact on users.
• Provide advanced technical support and troubleshooting for incidents and service requests.
• Document system configurations, procedures, and policies to maintain compliance and operational efficiency.
• Collaborate with cybersecurity teams to manage vulnerabilities and enhance security posture.
• Assist in the planning and implementation of network upgrades and expansions.
• Participate in on-call support rotation during after-hours and weekends.

Qualifications

• Must possess a current TS/SCI clearance.
• Bachelor’s degree in Computer Science, Information Technology, or a related field; or equivalent work experience.
• A minimum of 5 years of experience in systems administration, preferably in a government, military, or Defense contractor environment.
• Proficiency in Windows Server and Linux operating systems.
• Experience with virtualization technologies (e.g., VMware, Hyper-V).
• Strong knowledge of networking concepts and protocols (e.g., TCP/IP, DNS, DHCP).
• Familiarity with scripting and automation tools (e.g., PowerShell, Bash).
• Excellent analytical and problem-solving skills.

Technologies & Tools

In this position, the Senior Systems Administrator will work with a variety of technologies and tools including but not limited to Windows Server, various Linux distributions (such as Red Hat, CentOS, and Ubuntu), VMware vSphere for virtualization, Cisco networking products, and security monitoring tools like Splunk and Nessus. Familiarity with scripting languages such as PowerShell and Bash will enhance automation and system management efficiency.

Ideal Candidates

Ideal candidates for the Senior Systems Administrator position will possess a strong blend of technical expertise and interpersonal skills. They should have the ability to work independently and as part of a team, demonstrating excellent communication skills when interacting with fellow IT professionals and end-users. The right candidate will be proactive in detecting and resolving issues, demonstrating a commitment to continuous learning and improving operational processes. Additionally, they should exhibit a strong sense of integrity and professionalism, particularly in handling sensitive information associated with a TS/SCI clearance.