System Administrator​/ISSE

Overview

Join our dynamic team at CDT as a Systems Administrator & ISSE (Information Security Systems Engineer) for an engaging DoD program in Richardson, TX. This hands‑on technical role promises a blend of security engineering, systems administration, and information assurance support in a lively, flexible work environment. Every day brings new challenges and opportunities to grow, making your work exciting and diverse.

An active Secret clearance is required and need to be able to Top Secret clearance eligible. Candidates who do not meet this requirement will not be considered.

• Systems Administration:Administer, maintain, upgrade, and ensure the readiness of several classified virtual enterprise systems and corresponding technologies (VMware, Cisco, Palo Alto, Windows Domain, Linux).
• Security Testing:Perform continuous monitoring and systems security testing using tools like ACAS/Nessus.
• Vulnerability Remediation:Implement and provide mitigation solutions for identified findings and patching requirements.
• Networking:Maintain, Troubleshoot, Upgrade Switching, Routing, Firewalls.
• HBSS Maintenance:Maintain HBSS installation and ensure upstream connection.
• Documentation & Procedures:Collaborate with the ISSO team and program/project staff to create, implement, and maintain procedural documents and operations (configuration management, continuous monitoring, business continuity, disaster recovery, etc.).

• Software Installations:Perform enterprise software installations and upgrades.
• Compliance:RMF, NIST, and NISPOM requirements, configurations, settings, and documentation.
• Network Engineering:Experience with Enterprise Switching and Firewalls highly desired (For Example: Palo Alto, Cisco ASA, Cisco Firepower, Cisco IOS, Juniper JunOS).
• Linux
  
  Skills:
  
  Familiarity Red Hat Enterprise Linux.

• Experience:3+ years in deploying, configuring, maintaining, and monitoring computer systems and networks.
• Certifications:Security+, CASP+, CISSP, CCNA, or similar certifications.

• Diverse Work Environment:Engage in a wide range of tasks that keep your job interesting and varied.
• Flexibility:Enjoy a flexible work environment that values work‑life balance.
• Growth Opportunities:Every project is a chance to learn and grow professionally.

• Competitive salary based on experience.
• Comprehensive benefits package, including health, dental, and retirement plans.
• Opportunities for professional development and career advancement.

CDT is committed to hiring and retaining a diverse workforce. We are an Equal Opportunity employer making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.
Apply Now:
If you are a proactive System Administrator/ ISSE and thrive in dynamic environments, we encourage you to apply and join the CDT team!