Cybersecurity Systems Administrator

Responsibilities

**Position is Contingent Upon Award**

 

Peraton seeks innovative professionals who thrive in mission-critical environments and are passionate about protecting our national critical infrastructure. This is your chance to make an impact on one of the nation’s vital organizations, working alongside leaders in cybersecurity engineering, operations, forensics, threat analysis, data science, and systems integration.

 

Join Peraton in supporting a large critical infrastructure operator to defend its corporate and operations networks from nation-state attacks, ensure the confidentiality, integrity, and availability of its systems and operations infrastructure, and comply with federal and industry cybersecurity regulation. As a cybersecurity systems administrator in a state-of-the-art 24-hour Cybersecurity Operations Center (CSOC), you will be part of a dynamic team responsible for securing and maintaining enterprise systems in accordance with established security standards and compliance requirements. This role ensures system availability while enforcing security controls, hardening standards, and compliance requirements. The systems administrator will maintain smooth operation of multi-user CSOC computer systems, including coordination with network engineers. You will monitor and manage system resources, including CPU usage, disk usage, and response times to maintain operating efficiency and perform systems security administration functions, including creating user profiles and accounts. Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space and performing installation and providing backup recovery.

 

Primary Responsibilities:

 

The Cybersecurity Systems Administrator will be responsible for:

• In accordance with security baselines, administer, configure, harden, and backup Windows and Linux security applications systems used in the CSOC such as Splunk, Axonius, Palo Alto XSOAR
• Implement and maintain security controls, access controls, and system configurations
• Monitor system logs, alerts, and security events; investigate and escalate issues as needed
• Apply system updates, patches, and configuration changes in a timely and secure manner
• Manage user accounts, permissions, and authentication mechanisms
• Maintain system documentation, security configurations, operational procedures, and backups
• Collaborate with CSOC, infrastructure, and compliance teams
• Prepare shift reports and brief CSOC Manager, infrastructure stakeholders and corporate management on systems’ status
• Stay abreast of the latest cyber threats and relevant system updates

Additional Responsibilities:

• Security hardening and configuration
• Support incident response by collecting logs, artifacts, and system data
• Perform vulnerability scanning, assess findings, and support remediation efforts
• Support audits and compliance activities by providing evidence and system data

Qualifications

Required:

• U.S. Citizenship Required
• Must have the ability to obtain / maintain a DOE L Level or DOE Secret clearance
• Degree in computer science, engineering, information technology, or related field
• Minimum of 8 years with BS/BA; Minimum of 6 years with MS/MA; Minimum of 3 years with PhD
• Experience in IT infrastructure and cybersecurity
• Understanding of industry cybersecurity standards such as FISMA, NIST 800 series, and regulatory compliance requirements
• Strong analytical and problem-solving skills to troubleshoot and provide reactive maintenance for system-level issues
• Understanding of TCP/UDP packet capture and analysis
• Excellent verbal and written communications skills
• Ability to communicate technical issues to CSOC team members and management
• Must be available for occasional on-call or after-hours flexibility

Desired:

• Hold technical and/or cybersecurity certification such as GIAC GSEC, GIAC GCIH, CISA SSCP, CompTIA Security+
• A master’s degree in computer science, engineering, cybersecurity, information technology, or related field
• Basic understanding of computer networking and routing principles

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. P