Senior Network Security Engineer — TS/SCI w/ Poly (Offensive & Defensive)

Inferno Systems Inc.; Chantilly (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

Inferno Systems Inc. in Chantilly, VA is seeking an Expert Level Network Security Engineer to support covert and secure networks. TS/SCI with Full Scope Polygraph clearance is required.

The role blends network engineering with offensive security, offering opportunities to work with tools like Shodan, Maltego, and Kali Linux while expanding both offensive and defensive capabilities. Candidates should have 7+ years of hands-on experience and a strong Linux background, with experience in edge

Qualifications

• Minimum 7+ years of hands-on experience as a Network Engineer, System Engineer or in the Cyber Security field as a penetration tester.
• Experience in Linux environments and configuring small business or home network devices (SOHO).
• Strong knowledge of network defense, vulnerability analysis, and security practices.
• Familiarity with edge network devices and integrated network solutions using Linux and traditional appliances.

Responsibilities

• Assist penetration testers with analysis of edge network devices and vulnerability assessment.
• Support securing customers' networks through a blend of defensive and offensive techniques.
• Utilize Kali Linux tools and scripting to further penetration testing efforts.

Skills

Linux

Network engineering

Penetration testing

Command line

Security practices

Edge networks

Tools

vSphere

Kali Linux

Shodan

Maltego

Nmap

Metasploit

Wireshark

tcpdump

iptables

BurpSuite

LogRhythm

Splunk

SolarWinds

Job description

Inferno Systems Inc. in Chantilly, VA is seeking an Expert Level Network Security Engineer to support covert and secure networks. TS/SCI with Full Scope Polygraph clearance is required.

The role blends network engineering with offensive security, offering opportunities to work with tools like Shodan, Maltego, and Kali Linux while expanding both offensive and defensive capabilities. Candidates should have 7+ years of hands-on experience and a strong Linux background, with experience in edge