C

CACI

Provides government contracting technology and services

Cyber Security Engineer - NSS Tools

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Full-timeSt. Louis, MO, USA$75.2k - $158.1kIn-person

About the Job

Requirements

  • An active TS/SCI security clearance is required.
  • Ability to obtain and maintain a CI polygraph.
  • DOD 8570 IAT II certification, such as Security+ or CySA+, is required.
  • Ability to obtain and maintain DOD 8570 CSSP Infrastructure Support certification, such as CEH or CySA+, is required.
  • Ability to work weekends and evening hours as needed.
  • Ability to work independently with little direction or guidance.

Responsibilities

  • Design, implement, and deliver task- or project-based defensive cybersecurity solutions for on-premise and cloud environments.
  • Deploy, configure, and maintain network security tools, ensuring software installations, updates, core services, and applied configurations function within design specifications.
  • Develop and maintain network architecture diagrams, inventories, and licensing status for the team's capabilities.
  • Provide written reports and oral briefings to contract and government leadership.
  • Coordinate issues with appropriate stakeholders to ensure task completeness and overall customer satisfaction.
  • Evaluate and report on new and emerging network security technologies to enhance network capacity, performance, and reliability.
  • Evaluate and recommend configuration changes and technology upgrades to address performance and standardization, and to align with industry best practices.
  • Apply a solid understanding of networking protocols and use network troubleshooting tools such as tcpdump, traceroute, netstat, and nslookup to diagnose and resolve issues.

Desired Qualifications

  • Demonstrated knowledge of implementing and managing NDR and IDS/IPS platforms, such as VectraAI, Extrahop, Darktrace, Corelight, Cisco Firepower, and Trellix NX.
  • Demonstrated knowledge of implementing and managing packet broker and network visibility platforms, such as Gigamon, Ixia, and Garland.
  • Demonstrated knowledge of implementing and managing packet capture platforms, such as NetWitness, Axellio, and Endace.
  • Demonstrated knowledge of implementing and managing email security platforms, such as Trellix EX, Cisco Secure Email Gateway, Ironport, Proofpoint, and Abnormal.
  • Expertise in Linux system administration, including scripting and system automation.
  • Expertise in configuring system logging, analyzing logs for troubleshooting, and implementing secure networking services.
  • Familiarity with DoW PKI, Kerberos, LDAP, Active Directory, and authentication protocols including SAML and OAuth.
  • A bachelor's degree in Computer Science, Information Technology, Computer Engineering, Electrical Engineering, or a related field.
  • Seven or more years of related technical experience with network security technologies, tools, and techniques.
  • Five or more years of experience with large-scale enterprise or global networks.
  • Understanding of DoW, DISA, and IC standards and processes.
  • Understanding of DoW network architecture.

About the Company

CACI

Provides government contracting technology and services

CACI International Inc. provides technology and professional services to U.S. government clients, focusing on national security and modernization. It earns most of its revenue through long-term government contracts that fund engineering, intelligence, logistics, cybersecurity, data analytics, and IT solutions for defense, intelligence, and federal civilian agencies. Its products and services work by delivering specialized technical expertise, secure systems, and mission-support capabilities that help agencies run operations more efficiently and securely. CACI differentiates itself through its deep domain knowledge in national security, a proven track record of delivering high-quality, reliable solutions, and a skilled workforce that can execute complex, long-duration contracts. The company’s goal is to be a trusted partner for government modernization needs by providing advanced technology solutions and mission support that enhance national security and operational effectiveness.

Company size
10,001+
Company stage
IPO
Headquarters
Reston, VA
Founded
1962

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