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Peraton

Runs and secures technology for federal agencies

Firewall Network Engineer Senior Specialist

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeFlorida, USA

About the Job

Requirements

  • At least 12 years of experience with a high school degree, 10 years with an associate degree, 8 years with a bachelor's degree, 6 years with a master's degree, or 3 years with a PhD.
  • A Department of War Top Secret/Sensitive Compartmented Information clearance is required.
  • Must be Department of War 8140 compliant under Work Role Code 441, Network Operations Specialist, at the Intermediate level or higher.
  • Extensive experience configuring and managing Cisco Firepower Threat Defense and Firepower Management Center, including Access Control Policy, Snort/Intrusion Prevention System, Advanced Malware Protection/malware policies, Secure Sockets Layer decryption, and complex security troubleshooting.
  • Proficiency with Python, PowerShell, and Cisco Firepower Management Center REST APIs for automating policies, rules, and system updates.
  • Experience with Ansible Firepower Threat Defense/Firepower Management Center modules, Firepower Management Center APIs, and custom scripts to scale firewall operations and reduce manual effort.
  • In-depth knowledge of Cisco firewall controls, secure access policies, physical and virtual Firepower Threat Defense deployments, and encryption technologies.
  • Experience managing Cisco Secure Client/AnyConnect, site-to-site Internet Protocol Security, and Firepower Threat Defense remote-access virtual private networks using Advanced Encryption Standard, Transport Layer Security, and Internet Protocol Security.
  • Experience with Firepower Management Center monitoring, centralized syslog, Splunk/security information and event management, and Cisco Secure platforms for traffic analysis, anomaly detection, alert investigation, and incident response.
  • Strong understanding of cybersecurity compliance standards and regulatory requirements.
  • Ability to develop clear, concise, and accurate technical documentation and configuration records.
  • Strong analytical skills and ability to troubleshoot complex security challenges and develop effective solutions.
  • Ability to perform effectively in high-pressure environments, prioritize competing demands, and adapt to changing requirements.
  • Strong written and verbal communication skills and ability to translate technical concepts for non-technical audiences.
  • Must be willing to work shifts and/or weekends if required.

Responsibilities

  • Design, deploy, and maintain Cisco Firepower Threat Defense firewall architecture managed centrally through Firepower Management Center.
  • Support enterprise network segmentation and secure connectivity across on-premises infrastructures.
  • Participate in integrating Zero Trust frameworks within Cisco Firepower Threat Defense and Firepower Management Center security environments.
  • Develop policies and centralized intrusion rules, and integrate threat intelligence on Cisco Firepower Management Center.
  • Provide advanced operational support by troubleshooting and resolving Cisco Firepower Threat Defense/Firepower Management Center issues, independently handling complex technical and routing cases.
  • Document Cisco firewall technical procedures and standard operating procedures, and lead compliance audits.
  • Collaborate with IT teams to implement and refine network security policies and procedures.
  • Assist in conducting security assessments and vulnerability scans on Cisco firewall and network infrastructure.
  • Mentor junior staff and provide strategic guidance for network security architecture.

Desired Qualifications

  • Cisco Certified Network Professional Security certification.
  • Cisco Certified Specialist – Network Security Firepower (300-710 SNCF) certification.
  • Cisco Certified Internetwork Expert Security certification.

About the Company

Peraton

Runs and secures technology for federal agencies

Peraton builds and runs secure technology for American defense, intelligence, space, and civilian agencies, from military networks to satellite ground stations. In 2025, the Federal Aviation Administration chose it to manage the overhaul of the nation's air traffic control system, replacing copper wiring with fiber and upgrading radar and radios. Its engineers, many holding security clearances, run and defend agency networks and data centers, write mission software, and operate space and communications systems, and agencies pay for this work through multiyear contracts. Peraton was formed in 2017, when private-equity firm Veritas Capital bought Harris Corporation's government IT business, and is based in Reston, Virginia.

Company size
10,001+
Company stage
Grant
Total funding
$60M
Headquarters
Reston, VA
Founded
2017

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