Firewall Architect

*MANTECH** is seeking a motivated, career and customer-oriented **Firewall Subject Matter Expert (SME) / Architect** in **South Burlington, VT; Camp Springs, MD** ; or in a location to be determined upon offer acceptance. **Responsibilities include, but are not limited to:** + Primary role is to perform as Level 4 firewall and network engineering escalation point for network security to effectively support security processes and procedures. + Continually improve on the network stability working with the performance team to establish network performance metrics for alerting and remediation automations. + Work with other firewall and network engineer colleagues to configure and implement Next Generation Firewall and Intrusion Protection Systems. + Review existing configuration settings to identify potential security vulnerabilities and propose/implement setting or architectural changes to address these vulnerabilities. + Perform securing, hardening, and rule creation for new firewalls, switches, routers, and other network equipment. This includes reviewing and re-evaluating existing configuration settings and rules to verify USCIS’ security posture and eliminate unnecessary risk. **Minimum Qualifications:** + A minimum of ten (10) years of experience as an enterprise firewall engineer across large and complex network and Microsoft AD environments + Certifications: PCNSE + Extensive security background with Palo Alto firewall systems + A minimum of four (4) years of experience in cloud technologies such as but not limited to Azure and AWS. + Experience designing and implementing enterprise solutions that increase the availability and security of the enterprise. + Experience with on premise physical infrastructure and virtualization technologies including Hyper-V, VMWare, SAN, NFS, SMB3 etc + Deep experience with networking and security methods and tools. **Preferred Qualifications:** + Familiar with tools including: ServiceNow, GitHub, Jira, Confluence + Experience with ITIL, DevSecOps and Agile concepts + Experience supporting Government contracts **Clearance Requirements:** + Must be a U.S. Citizen with the ability to obtain and maintain a Public Trust clearance prior to starting this position + Ability to obtain DHS EOD suitability prior to starting this position + Current DHS EOD highly preferred **Physical Requirements:** + Must be able to remain in a stationary position 50% + Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at and provide your name and contact information.

Created: 2025-11-06