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SimVentions

Employee-owned engineering services provider delivering excellence

Red Team Penetration Tester

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeKing George, VA, USA$110k - $150k /yr

About the Job

Requirements

  • Five years of experience in software engineering applied to program development, modeling and simulation applied to Department of Defense or information technology systems.
  • Demonstrated knowledge of Linux and foundational knowledge of Windows, including enterprise networks.
  • Strong working knowledge of penetration-testing tools, including Kali, Metasploit, Nmap, and Cobalt Strike.
  • Documented experience in at least one of the following areas: penetration testing; red team operations; tool or software development involving exploits, malware, command-and-control, reverse engineering, or bug bounties; Python, C, C#, C++, Go, Perl, or PowerShell; web development, web application development, or web penetration testing.
  • Experience with VMware NSX, vCenter, vRealize Suite, Horizon View or other VDI technologies; PAN-OS; FirePower, Nexus, IOS, or ASA; ONTAP or SnapMirror; Active Directory, single sign-on, multi-factor authentication, Azure application integration, or identity federation; automation using PowerShell, Power Automate, Logic Apps, or Graph API; Palo Alto, Cisco, VMware, NetApp, or Microsoft products; Microsoft Entra ID and Microsoft 365 in a hybrid environment; integrating on-premises Active Directory with Entra ID; identity and access management in Microsoft Entra ID; red team operations in a Microsoft Defender for Endpoint environment; AWS, cloud audit, serverless or microservice architecture; AWS services such as EC2, S3, KMS, or RDS and their security best practices; web services penetration testing using RESTful or SOAP services; or web authentication protocols such as OAuth2, SAML, or LDAP.
  • Experience with PHP, ASP, SQL databases, Java, HTML, or NoSQL.
  • At least one of the following certifications: Security+, CCNA Security, CySA+, GICSP, or SSCP.
  • A minimum penetration-testing certification, with one of the following: OSCP, OSCE, OSEE, OSWP; SANS SEC560/GPEN, SEC542/GWAPT, SEC660/GXPN, SEC642, or SEC564; graduation from the OSD-sponsored Cyber Operation Academy Course; Capture the Flag participation such as DEFCON, Over-The-Wire, Hack the Box, or USS Secure CTFs; or security research resulting in a CVE.
  • An active Secret clearance is required. U.S. citizenship is required to obtain a clearance.
  • High school diploma or GED equivalent.

Responsibilities

  • Debug and reverse engineer software.
  • Analyze Windows events and Linux syslog, boot, and dmesg logs.
  • Program and debug Web 2.0, Java, Perl, Ada, C++, and Tcl/Tk scripts and graphical user interfaces using Microsoft Visual Tel and Rational ClearCase for software configuration management.
  • Recommend software modifications to mitigate known system vulnerabilities.
  • Operate and administer computer systems running HP-UX, UNIX, Solaris, Linux, and Microsoft Windows.
  • Identify security flaws in compiled and human-readable source code.
  • Understand code using real-time VxWorks and LynxOS operating systems, CORBA, firewalls, and networking protocols.
  • Understand how to implement NSA-approved encryption technologies and devices, and apply DISA Security Technical Implementation Guides.
  • Apply virtual hosting and server technology in system architectures, and apply deceptive technology such as honeypots in system architectures.
  • Participate in code reviews, perform static source code analysis, and author recommendations to improve software and code design.
  • Contribute to a System Security Administrator and Operators Manual.

Desired Qualifications

  • An active Top Secret clearance with SCI eligibility is preferred.

About the Company

SimVentions

Employee-owned engineering services provider delivering excellence

SimVentions provides modeling, simulation, and analysis services for defense and government customers. It helps clients design, test, and evaluate systems by building simulation models, running digital twins and wargames, and delivering engineering support and software of simulation tools. Their products operate by integrating data, models, and simulations into end-to-end workflows to assess performance, training needs, and risk under realistic scenarios. The company differentiates itself through its employee-owned structure and a focus on delivering precise, reliable simulation and analysis services with a strong emphasis on excellence and client service. The overall goal is to help customers make informed decisions, reduce risk, and improve readiness by providing high-quality, battle-tested simulation solutions.

Company size
201-500
Company stage
Grant
Total funding
$2.5M
Headquarters
Fredericksburg, Virginia
Founded
2000

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