Information System Security Engineer I

Cyber Defense Technologies; Richardson (TX); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

Health & retirement

Professional development

Job summary

Cyber Defense Technologies in Richardson, TX is seeking an ISSE I for a DoW program. The role is hands-on security engineering, systems administration, and information assurance on-site in Richardson, TX. An active Secret clearance is required to be considered.

Responsibilities include maintaining classified enterprise systems, supporting lifecycle security, monitoring with Nessus, Trellix, and Splunk, and ensuring changes follow Change Management. RMF/NIST/NISPOM compliance is essential.

Qualifications

• 3+ years deploying, configuring, maintaining, and monitoring computer systems and networks.
• Professional certifications such as Security+, CISSP, CCNA, RHCSA are preferred.

Responsibilities

• Administer and maintain classified enterprise systems and technologies (VMware, Linux, Windows).
• Provide security engineering and DoD RMF/NIST/NISPOM compliance support.
• Conduct continuous monitoring and system security testing with Nessus/Trellix/Splunk.
• Develop mitigation plans and patching for identified findings.
• Ensure changes follow Change Management and do not impact security.
• Maintain Trellix/ENS and perform authorization/re-authorization documentation.

Skills

Security engineering

Systems administration

Information assurance

RMF/NIST/NISPOM knowledge

Network engineering

Education

Security+, CISSP, CCNA, RHCSA

Tools

Nessus/ACAS

Splunk Enterprise

Trellix

VMware vSphere

Windows Server

Windows Workstation

Job description

CDT is seeking a skilled ISSE I for a DoW program in Richardson, TX. This position is hands-on technical and will provide on-site security engineering, systems administration, and information assurance support to the program.

Overview: CDT is seeking a skilled ISSE I for a DoW program in Richardson, TX.This position is hands-on technical and will provide on-site security engineering, systems administration, and information assurance support to the program.

Clearance Requirements: An active Secret is required. Candidates who do not meet these clearance requirements will not be considered.

Responsibilities

• Experience with administering, maintaining, implementing upgrades, and ensuring the readiness of several classified virtual enterprise systems and corresponding technologies (e.g., VMware vSphere, Enterprise Linux, Cisco Systems (Switch, Router, NGFW), Palo Alto, Windows Server, Windows Workstation).
• Provide security engineering and development support throughout the system life cycle.
• Perform appropriate continuous monitoring and systems security testing using tools such as Nessus Security Center/ACAS, Trellix, and Splunk Enterprise.
• Provide mitigation solutions for identified findings and patching requirements.
• Ensure that proposed system changes are reviewed and that implemented system modifications do not adversely impact the security of the system. (e.g., Change Management)
• Maintain Trellix/ENS installations and upstream connections.
• Ensure that authorization/re-authorization support documentation is developed and maintained in conformance with applicable standards.
• Monitor the client’s progress towards completion of POA&Ms.
• Ensure that IS users’ activities are monitored and are following security policies and procedures.
• Assist corporate security and program/project staff to create, implement, and maintain procedural documents and operations (configuration management, continuous monitoring, business continuity, disaster recovery, etc.).

Technical Areas of Expertise

• Performing enterprise software installations and upgrades.
• Ansible or PowerShell automation experience not required but preferred.
• Windows Workstation and Server deployment and administration experience.
• RMF, NIST, and NISPOM requirements, configurations, settings, and documentation.
• Network engineering experience highly sought after.

Qualifications

• 3+ years of experience in deploying, configuring, maintaining, and monitoring computer systems and networks.
• Technical certifications such as a Security +, CISSP, CCNA, RHCSA, or similar

Why Join Cyber Defense Technologies?

At CDT, we offer a collaborative and inclusive work environment where your expertise can help shape the future of cybersecurity and engineering solutions.

Compensation and Benefits

• 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.