Senior Linux Security Engineer - NSS Tools (TS/SCI)

Dormont Manufacturing Co; St. Louis (MO); On-site; USD 75,200 - 158,100; Full time

Job summary

CACI is seeking a Cyber Security Engineer - NSS Tools to design, deploy, and secure Linux-based infrastructure within federal contracting. You will automate tasks, manage logging, and ensure secure networking services while collaborating across teams.

The role requires TS/SCI clearance, 7+ years in security operations or related fields, and experience with AWS, Ansible, Terraform, and compliance standards. This is a full-time, on-site position in the United States.

Qualifications

• 7+ years of related experience in SEIM, network operations, network engineering, leading technology teams, or leading operation cybersecurity teams.
• Active TS/SCI clearance with experience working on US Government contracts.
• DOD 8570 IAT II and CSSP Infrastructure Support certifications.
• Proven Linux scripting and automation experience.
• Familiarity with AWS services such as EC2, S3, CloudFormation, and Terraform.

Responsibilities

• Design and implement shell scripts to automate system maintenance tasks, enhancing efficiency and reliability.
• Configure and manage system logging, including remote logging, to facilitate thorough log analysis for troubleshooting and security monitoring.
• Establish and maintain networking services, including firewall configurations and SELinux policies, to ensure secure and optimized system performance.
• Utilize partitions and logical volumes to configure local storage solutions tailored to specific project requirements.
• Deploy, configure, and maintain systems, ensuring software installations, updates, and core services are managed effectively.
• Apply a solid understanding of networking protocols (DNS, SMTP, DHCP) and utilize network troubleshooting tools (tcpdump, Traceroute, Ping, Netstat, nslookup) to diagnose and resolve issues.

Skills

Linux system administration

Shell scripting

System automation

Logging & security monitoring

AWS (EC2, S3)

Ansible

GitHub/GitLab

Network security

Team collaboration

Learning mindset

Education

Bachelor’s degree in Computer Science, IT, Computer Engineering, or Electrical Engineering

Tools

AWS CloudFormation

Terraform

Ansible

GitHub/GitLab

Job description

CACI is seeking a Cyber Security Engineer - NSS Tools to design, deploy, and secure Linux-based infrastructure within federal contracting. You will automate tasks, manage logging, and ensure secure networking services while collaborating across teams.

The role requires TS/SCI clearance, 7+ years in security operations or related fields, and experience with AWS, Ansible, Terraform, and compliance standards. This is a full-time, on-site position in the United States.