Senior Network Engineer - DoD/IC (TS/SCI)

Independent Software; Columbia (MD); On-site; USD 140,000 - 190,000; Full time

Job summary

Independent Software in the United States seeks a System Engineer Level 3 to provide senior‑level systems and network engineering support for mission‑critical environments. You will design, configure, secure, and troubleshoot complex network infrastructure in secure environments.

Responsibilities include Cisco switching, routing, firewall and security appliances, network hardening, and SSP compliance, with hands-on tools like Wireshark and Tripwire. TS SCI with polygraph is required.

Qualifications

• Extensive hands-on systems and network engineering in complex operational environments.
• Strong knowledge of Cisco switches, routers, and firewalls, including Cisco 9300 series.
• Experience with Palo Alto, HAIPE, or comparable network security appliances.

Responsibilities

• Design, configure, maintain, and troubleshoot Cisco switches, routers, and firewalls, including Cisco 9300.
• Support network security appliances including Palo Alto, HAIPE, and similar technologies
• Perform network security hardening and support SSP development and compliance requirements
• Troubleshoot complex network and connectivity issues using Wireshark, Tripwire, packet analysis, and related diagnostic tools
• Analyze network traffic, firewall activity, message delivery, ACK/NACK responses, MTU configurations, and connectivity issues

Skills

Senior systems engineering

Network engineering

Cisco switches/routers/firewalls

Network troubleshooting

Security hardening

Education

Bachelor’s degree in Systems Engineering/CS/Info Systems

20 years of Systems Engineering experience

Tools

Wireshark

Tripwire

Packet analysis tools

Cisco 9300 series

Job description

Independent Software in the United States seeks a System Engineer Level 3 to provide senior‑level systems and network engineering support for mission‑critical environments. You will design, configure, secure, and troubleshoot complex network infrastructure in secure environments.

Responsibilities include Cisco switching, routing, firewall and security appliances, network hardening, and SSP compliance, with hands-on tools like Wireshark and Tripwire. TS SCI with polygraph is required.