Cyber Security Engineer - NSS Tools

CACI; 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

Job Title: Cyber Security Engineer - NSS Tools

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

The Opportunity

Network Defense is at the forefront of integrating advanced Linux systems into our cybersecurity framework. We are seeking a Linux Systems Engineer who is deeply passionate about leveraging their technical expertise to enhance our cybersecurity capabilities. This role is ideal for someone who thrives in a collaborative environment where their skills directly contribute to strengthening our digital defenses.

As a Network Defense Linux Systems Engineer, you will play a crucial role in maintaining and enhancing the security and efficiency of our Linux-based systems. Your expertise in Linux, combined with a keen interest in cybersecurity, will be instrumental in supporting our mission to safeguard our digital assets.

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.

Qualifications

Required:

• Proven experience in Linux system administration, with a strong background in shell scripting and system automation.
• Expertise in configuring system logging, analyzing logs for troubleshooting, and implementing secure networking services.
• Familiarity with AWS services such as EC2, S3, CloudFormation, and Terraform is advantageous.
• Experience with automation tools like Ansible and version control systems such as GitHub/GitLab for script and code management.
• A proactive approach to system optimization and a continuous learning mindset to stay updated with the latest in Linux systems and cybersecurity.
• Excellent collaboration skills, with the ability to work effectively across teams to achieve system-related goals.
• Active Top Secret/SCI Clearance with experience working on US Government contracts.
• DOD 8570 IAT II and CSSP Infrastructure Support certifications.
• Bachelor’s degree in Computer Science, Information Technology, Computer Engineering, or Electrical Engineering.
• 7+ years of related experience in SEIM, network operations, network engineering, leading technology teams, leading operation cybersecurity teams, or a combination thereof.

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation’s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is: $75,200-$158,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.