Administer, monitor, and secure enterprise network infrastructure, including firewalls, VPNs, IDS/IPS, and network segmentation
Manage and harden Linux-based systems (servers, appliances, and security tools)
Implement and maintain Splunk for log aggregation, security monitoring, alerting, and dashboards
Analyze security logs and network traffic to detect, investigate, and respond to security incidents
Develop and maintain Splunk searches, reports, and alerts to support SOC and compliance requirements
Perform vulnerability assessments, security audits, and remediation activities
Apply security patches, updates, and configuration changes across network and Linux environments
Support incident response efforts, including root cause analysis and post-incident reporting
Collaborate with IT, SOC, and application teams to improve security architecture and processes
Document network security configurations, procedures, and incident response actions
Ensure compliance with internal policies and external regulatory requirements

Requirements

- Active DoD Secret Clearance is mandatory.
- Bachelor’s degree in Computer Science, Information Security, or a related field (or equivalent experience)
- 3+ years of experience in network security or systems administration
- Holding a DoD IAT Level III certification (such as CISSP, CCNP, CISA, CASP+) is a must
- Strong experience administering and securing Linux environments (RHEL, CentOS, Ubuntu, etc.)
- Hands-on experience with Splunk (Enterprise and/or Splunk ES) for log analysis and security monitoring
- Solid understanding of TCP/IP, routing, switching, DNS, and network security principles
- Experience with firewalls, VPNs, IDS/IPS, and network monitoring tools
- Experience responding to security incidents and conducting forensic analysis
- Strong troubleshooting, analytical, and documentation skills

Benefits

*At RMC, we're committed to your career growth! RMC differentiates itself from other firms through its investment in our employees.
*RMC can offer you a great place to work with a small company feel and give you the experience, tuition assistance, and certifications that will take your career to the next level. This also includes a competitive paid vacation package with 11 paid federal holidays. Additionally, we also offer high-quality, low-deductible healthcare plans, pet insurance, and a competitive 401K package.
*Salary at RMC is determined by various factors, including but not limited to location, a candidate's specific combination of education, knowledge, skills, competencies, and experience, as well as contract-specific requirements. The current salary range for this position will be $110,000 to $125,000 (annually).

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

network securityLinux administrationSplunkvulnerability assessmentssecurity auditsincident responsesecurity monitoringlog analysisTCP/IPnetwork segmentation

Soft Skills

troubleshootinganalytical skillsdocumentation skills

Certifications

DoD Secret ClearanceBachelor’s degree in Computer ScienceCISSPCCNPCISACASP+