Network Defense and Firewall Security Engineer

** Security Clearance Required

Company Overview

Systems Technology Forum LTD (STF) is an established industry partner with a passion for exceptional performance and an unwavering commitment to our clients. As a premier provider of management, engineering, information technology, and logistics services, STF is committed to delivering high-quality systems engineering, technical and professional support services that meet and exceed deliverable requirements.

STF offers superior out-of-the-box solutions to end-to-end problems and customer-centric support to the United States Government, Military, Department of Defense (DoD), and other federal agencies.

Job Summary

The Network Defense and Firewall Security Engineer is responsible for safeguarding enterprise and mission networks within the PMW 790/STACC environment. This position designs, configures, monitors, and maintains network-security systems that protect classified and unclassified Navy information systems. The engineer ensures compliance with DoD cybersecurity policies, implements Zero Trust principles, and collaborates with Cyber and Network Operations teams to maintain resilient, accredited network infrastructures.

Responsibilities and Duties

• Configure, operate, and maintain enterprise firewalls, intrusion detection/prevention systems (IDS/IPS), and other boundary-defense appliances (e.g., Cisco ASA, Palo Alto, Fortinet, Snort, Suricata).
• Perform vulnerability scanning, security-event correlation, and analysis using ACAS, HBSS, and SIEM tools.
• Develop and maintain firewall and access-control policies that align with DoD RMF and STIG requirements.
• Conduct incident detection, response, and root-cause analysis to mitigate network threats or anomalies.
• Support Cross-Domain Solution (CDS) operations and data-