Senior Network Engineer (DoD/Secure Environments)

Independent Software, Inc.; Maryland; On-site; USD 140,000 - 190,000; Full time

Job summary

Independent Software is seeking a System Engineer Level 3 to provide senior-level systems and network engineering support in mission-critical environments. You will design, configure, secure, and troubleshoot complex network infrastructure with Cisco gear, security appliances, and secure DoD-aligned practices.

Responsibilities include implementing network diagrams, hardening security, and supporting SSP development while maintaining engineering documentation.

Qualifications

• Extensive hands-on systems and network engineering in complex environments.
• Cisco switches/routers/firewalls expertise, including 9300 series.
• Experience with Palo Alto, HAIPE, or comparable security appliances.
• Strong network troubleshooting and packet analysis.
• Experience with Wireshark and similar diagnostic tools.
• Security hardening in DoD or secure environments; SSP development experience.
• Experience designing network diagrams and rack drawings.
• Familiar with Jira, Confluence, Visio for documentation.
• Clearance: TS SCI with polygraph preferred.

Responsibilities

• Design, configure, maintain, and troubleshoot Cisco devices including 9300 switches.
• Support network security appliances (Palo Alto, HAIPE) and SSP compliance.
• Troubleshoot network issues using Wireshark, Tripwire, and packet analysis.
• Develop architecture diagrams and rack layouts with Visio.
• Assess network requirements and configure architectures.
• Support physical network installation (fiber, cabling, racks, security devices).
• Maintain engineering docs using Jira/Confluence.

Skills

Systems engineering

Network engineering

Cisco switches

Cisco routers

Cisco firewalls

Network troubleshooting

Wireshark

DoD security

Communication skills

Education

Bachelor’s degree in Systems Engineering

25 years experience substitution

Tools

Jira

Confluence

Visio

Job description

Independent Software is seeking a System Engineer Level 3 to provide senior-level systems and network engineering support in mission-critical environments. You will design, configure, secure, and troubleshoot complex network infrastructure with Cisco gear, security appliances, and secure DoD-aligned practices.

Responsibilities include implementing network diagrams, hardening security, and supporting SSP development while maintaining engineering documentation.