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Network Security Specialist II – Level II Security Clearance

Job in San Diego, San Diego County, California, 92101, USA
Listing for: Information Systems Solutions, Inc.
Full Time position
Listed on 2026-03-01
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security
Job Description & How to Apply Below
Position: Network Security Specialist II – Level II with Security Clearance
Description Information Systems Solutions (ISS) is looking for a Penetration Tester to perform primarily Red Team activities to assist in the defense of a Research, Development, Test, and Evaluation (RDT&E) network supporting a US Government customer. The selected candidate will primarily be responsible for assessing the current state of the services and infrastructure supporting NIWC, providing the following support:
* Performing penetration testing against a variety of applications using tools such as BURP.

* Perform proof of concept on new exploits to determine if supported networks are vulnerable.

* Ensure signature-based scanning tools are operational.

Requirements Clearance Level
* Secret
Certifications (IAT Level II) MCSA, Linux+ or other equivalent operating environment certification (equivalent training can be used in lieu of certification)
* AND one of the following (or a certification from a higher IAT level):
CompTIA Cybersecurity Analyst (CompTIA CySA+ CE)

* GIAC Global Industrial Cyber Security Professional (GIAC GICSP)

* CompTIA Security+ CE

* GIAC Security Essentials Certification (GSEC)

* EC-Council Certified Network Defender (EC-Council CND)

* GIAC System Security Certified Practitioner (GIAC SSCP)
Required Skills
* 4 years of relevant experience

* Drafting and review of SOPs (Standard Operation Procedures and POCs (Proofs of Concept)

* Experience as a System Administrator/Network Administrator

* Basic to medium knowledge of core Linux elements

* Experience with vulnerability enumeration and remediation

* Experience with DoD STIGs

* Scripting experience (Powershell, BASH, or Python preferred)

* Experience with virtual machines (vSphere, Virtual Box, KVM, QEMU)
Desired Skills
* Knowledge of Burp Suite security tools

* Knowledge of ACAS suite management, installation, upkeep, and troubleshooting

* Experience with Kali Linux tools such as nMAP, TCPDump, Wire Shark

* Knowledge of web development and HTML structure

* Working knowledge of OSI network model and network traffic flow

* Working knowledge of Windows Server core elements (Domain Controller, Active Directory, Registry, GPO creation, DISM, SCCM)

* Medium to Advance knowledge of network configuration for switches and routers

* Basic understanding of vulnerability research and exploitation

* Basic knowledge of physical security

* Basic knowledge of hardware exploitation

* Basic knowledge of Cloud core elements

* Penetration testing experience Requirements Network Security Specialist II - Level II Salary Description 90,
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