> Markdown version of [/jobs/ext/3697344-ttg-325-firewall-network-security-engineer-297-800-total](https://www.wearedevelopers.com/jobs/ext/3697344-ttg-325-firewall-network-security-engineer-297-800-total). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # TTG-325 - Firewall & Network Security Engineer - $297,800 Total - **Company:** TTG Solutions Inc. - **Location:** Herndon, VA, United States - **Salary:** $297,800.0 - **Contract:** Permanent contract - **Skills:** Computer Networks, OSI Models, Network Security, Network Monitoring, Network Protocols, Cloud Services, Firewall Policy Management, TCP/IP, Firewalls (Computer Science), Palo Alto Networks, Firewall Services Module, Cisco, Citrix Netscaler - **Published:** October 12, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9142787/ttg-325-firewall-network-security-engineer-297800-total ## About the Role TTG Solutions is seeking an experienced Network Engineer with a strong background in firewall technologies to join our team. We value candidates who have a minimum of 11 years of experience and thrive in fast-paced environments. Design, implement, and manage firewall solutions using Cisco, Palo Alto, and Netscaler devices. Perform configuration, maintenance, and troubleshooting of firewall policies and rules. Monitor network traffic for security threats and address vulnerabilities. Collaborate with cross-functional teams to ensure network security aligns with business objectives. Stay informed on industry trends and best practices in network security. Expert Generally requires eleven (11) years of experience specific to the skill and relevant training or certifications Requirements: 11 yrs - 15 yrs 11 mos * Design and management of firewall solutions * Configuration, maintenance, and troubleshooting of firewall policies * Network traffic monitoring for security threats * Experience as a Network Engineer with a focus on firewall technologies * Excellent communication and interpersonal skills * Ability to work independently and collaboratively * Strong proficiency with Palo Alto & Cisco * Knowledge of Netscaler firewall platforms * In-depth knowledge of network protocols, TCP/IP stack, and OSI model * Experience with firewall management software like Cisco FTD and Palo Alto Panorama * Cloud Service Provider experience * Industry certifications such as CCNA Security, CCNP Security, or PCNSE This position requires an active TS/SCI clearance with Polygraph. Total compensation is the total combination of salary, benefits, retirement, bonuses, etc... and it is calculated using the following formula