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Peraton

Runs and secures technology for federal agencies

Junior Cyber Penetration Tester

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeArlington County, Arlington, VA, USA

About the Job

Requirements

  • A bachelor's degree and two years of related experience are required, or an additional four years may be considered in lieu of the degree requirement.
  • Demonstrated basic understanding of networking and security principles.
  • Experience evaluating system security configurations.
  • Understanding of common web application vulnerabilities, including SQL injection, cross-site scripting, cross-site request forgery, and HTTP flooding.
  • Experience with penetration-testing tools such as Metasploit, Burp Suite, and Nmap.
  • Knowledge of network routing and switching fundamentals and assessing network-device configurations.
  • Familiarity with evaluating findings and performing root-cause analysis.
  • Ability to work independently and/or within a small group.
  • Must possess and maintain one of the following certifications: CCNA Cyber Ops, CCNA Security, CEH, CFR, Cloud+, CySA+, GCIA, GCIH, GICSP, or SCYBER.
  • U.S. citizenship is required.
  • An active Secret security clearance is required.

Responsibilities

  • Support the Penetration Testing (Red Cell) Team.
  • Assess the current state of customer system security by identifying vulnerabilities and security measures.
  • Help the customer analyze and mitigate security vulnerabilities.
  • Perform and report penetration testing of systems, including cloud systems, to satisfy the NIST 800-53 CA-8 security control, using methodologies that may include NIST SP 800-115, the Penetration Testing Execution Standard, and the Information Systems Security Assessment Framework.
  • Stay current on attack vectors and methods for exploiting computer networks.
  • Support incident response teams through capability enhancement and reporting.
  • Assist in maintaining Red Cell infrastructure.
  • Develop or modify tools to automate discovery or exploitation, using technologies such as Bash, Python, JavaScript, and PowerShell.

Desired Qualifications

  • An active Top Secret or TS/SCI clearance is preferred.

About the Company

Peraton

Runs and secures technology for federal agencies

Peraton builds and runs secure technology for American defense, intelligence, space, and civilian agencies, from military networks to satellite ground stations. In 2025, the Federal Aviation Administration chose it to manage the overhaul of the nation's air traffic control system, replacing copper wiring with fiber and upgrading radar and radios. Its engineers, many holding security clearances, run and defend agency networks and data centers, write mission software, and operate space and communications systems, and agencies pay for this work through multiyear contracts. Peraton was formed in 2017, when private-equity firm Veritas Capital bought Harris Corporation's government IT business, and is based in Reston, Virginia.

Company size
10,001+
Company stage
Grant
Total funding
$60M
Headquarters
Reston, VA
Founded
2017

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