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Xtreme Solutions Corporate

Internal Network Penetration Tester

Pay: Not specified

Posted: 6 weeks ago

Location: San Bernardino, CA (Onsite)

Last Updated: 2 weeks ago

Hours: Full-Time

Expires: 9/28/2026

Career Insights for Vulnerability Analyst / Penetration Tester

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What they do

A Vulnerability Analyst or Penetration Tester probes for and exploits security vulnerabilities in web-based applications, networks and systems. Penetration Tests are designed to achieve a specific, attacker-simulated goal and should be requested by customers who are already at their desired security posture. A typical goal could be to access the contents of the prized customer database on the internal network, or to modify a record in an HR system. Vulnerability Assessments are designed to yield a prioritized list of vulnerabilities and are generally for clients who already understand they are not where they want to be in terms of security. The customer already knows they have issues and simply need help identifying and prioritizing them.

$125,034 / year median in California

+2% projected growth

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Job Description

Internal Network Penetration Tester Xtreme Solutions Corporate San Bernardino, CA Job Details Contract 23 hours ago Qualifications Tooling Network testing Security system vulnerability testing Penetration testing implementation

Active Directory Full Job Description Description:

Position Summary Executes internal network penetration testing from two pre-determined footholds — an unauthenticated physical network port and a simulated-phishing authenticated workstation — across County facilities, testing servers, workstations, endpoints, and password strength. Key Responsibilities Physically connect to County network ports to simulate an unauthenticated internal attacker. Simulate a successful phishing/Trojan compromise from an authenticated workstation foothold. Attempt password cracking and lateral movement while evading department detection and response efforts. Document internal attack paths, exploited vulnerabilities, and business impact for each department report.

Requirements:

Required Qualifications 4+ years of internal/network penetration testing experience, including Active Directory attack paths. Comfort working onsite at client facilities, including data centers and administrative offices. Experience with internal recon and lateral movement tooling (BloodHound, Responder, or equivalent). Preferred Qualifications OSCP or GPEN certification. Experience testing in HIPAA-regulated or government network environments. Travel Onsite travel required to department locations in San Bernardino, Colton, Redlands, Rialto, Fontana, Ontario, Rancho Cucamonga, Montclair, Victorville, Hesperia, Apple Valley, Adelanto, Barstow, Needles, Big Bear Lake, and Yucca Valley; travel, lodging, and per diem are firm-borne.