Core4ce is a team of innovators, self-starters, and critical thinkers—driven by a shared mission to strengthen national security and advance warfighting outcomes. They are seeking a Network Security Firewall Engineer to configure, monitor, and maintain network security equipment, manage firewall systems, and ensure security compliance. The role involves troubleshooting, developing documentation, and implementing security policies in a flexible work environment.
Responsibilities:
- Skill in implementation of physical and virtual firewalls
- Experience with Remedy trouble ticketing system
- Manage firewall and network security systems by establishing and enforcing approved policies
- Ability to research and verify ports, protocol and services (PPS) for security compliance
- A thorough understanding of how applications communicate over the network using source and destination IP addresses, ports and protocols
- Ability to analyze network security requirements and implement perimeter security changes
- Serve as a subject matter expert in coordinating and troubleshooting with customers, other infrastructure support activities and business units
- Develop network documentation of security infrastructure
- Troubleshooting a variety of products within a multi-vendor environment
- Monitor network performance and implement performance tuning as necessary
- Utilize industry best practices for security, disaster recovery, business continuity, change control, the engineer will design, configure, manage and troubleshoot a variety of network firewall technologies
- This position is designed to be flexible, with responsibilities evolving to meet business needs and enable individual growth
Requirements:
- 8+ years of Networking experience
- Ability to obtain a Secret Clearance
- Knowledge or experience of Cisco ASA and Palo Alto Firewalls
- Experience in administrating and troubleshooting firewalls in medium to large, complex organizations
- Solid experience configuring and troubleshooting routing and switched infrastructure
- Experience with packet capture and analysis methodologies
- Experience scripting with Python, Java, and or Perl
- Experience with intrusion detection systems, VPN technologies, vulnerability assessment tools, event and log analysis solutions, configuration and change management and other network security systems and devices
- Familiar with government information assurance standards including DISA STIGs, NIST 800-53, IAVAs management, auditing and accreditation processes