Network Firewall Engineer

Peraton is seeking a Network Firewall Engineer to join our team of qualified, diverse individuals. The ideal candidate will support the Department of Homeland Security (DHS). The ideal candidate will have experience with Cisco networks and firewalls as well as Palo Alto firewalls. This individual will be responsible for managing, configuring, and securing our network infrastructure, ensuring the highest levels of network security and performance. The role requires knowledge of network security protocols, firewall technologies, and the ability to troubleshoot complex networking and security issues.

Day to Day Work Responsibilities:

• Firewall Management & Configuration:
  • Configure, deploy, and manage Cisco ASA and Palo Alto firewalls for perimeter and internal network security.
  • Implement and maintain network security policies, including access control lists (ACLs), VPN configurations, NAT policies, and firewall rule sets.
  • Perform regular firewall rule audits and security assessments to ensure compliance with industry standards and best practices.
• Network Security Monitoring:
  • Monitor and analyze network traffic to identify potential security threats or vulnerabilities.
  • Collaborate with the security operations team to respond to security incidents and resolve firewall-related alerts.
• Network Design & Optimization:
  • Collaborate with network engineers and architects to design, implement, and optimize secure network architectures that meet business requirements.
  • Maintain network uptime and optimize firewall performance to minimize latency and maximize throughput.
• Troubleshooting & Issue Resolution:
  • Troubleshoot and resolve complex network connectivity issues, firewall malfunctions, and security-related problems.
  • Work closely with cross-functional teams to diagnose and address network performance and security concerns.
• Documentation & Reporting:
  • Maintain detailed documentation of firewall configurations, network topologies, and security policies.
  • Prepare and present regular reports on firewall performance, network security incidents, and other key metrics.
• Stay Current with Security Trends:
  • Continuously update skills and knowledge regarding the latest network security threats, vulnerabilities, and best practices.
  • Participate in training and professional development to keep up with advancements in Cisco and Palo Alto technologies.

#TSAIMPACT

Basic Qualifications:

• Bachelor’s degree and 0 years’ experience or Associate’s degree and 2 years’ experience or HS diploma/equivalent and 4 years experience.  
• U.S. Citizenship required; Must have the ability to obtain / maintain a DHS Entrance on Duty (EOD) clearance.

• Experience as a Network Engineer or Firewall Engineer, with a focus on Cisco and Palo Alto firewalls.

• ITIL Foundations certification or ability to obtain certification within 30 days of hire.
• Certification in relevant technologies (e.g., Cisco CCNP/CCIE Security, Palo Alto Networks PCNSE).
• Familiarity with cloud security frameworks and firewalls (AWS, Azure, etc.).
• Experience with network automation tools or scripting languages (Python, Ansible, etc.).
• Knowledge of compliance standards such as PCI-DSS, HIPAA, and GDPR.

Preferred Qualifications:

• Knowledge of Cisco ASA, Cisco Firepower, and Palo Alto Networks firewalls.
• Understanding of TCP/IP, VPN technologies (IPsec, SSL), routing and switching (OSPF, BGP), and network security principles.
• Experience with network segmentation, DMZ, intrusion prevention, and threat detection.
• Experience with firewall configuration and policy design, including traffic filtering, NAT, and access control.
• Familiarity with security technologies such as IDS/IPS, SIEM systems, and network monitoring tools.
• Hands-on experience with advanced troubleshooting, log analysis, and security incident response.

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.