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Security Software Engineer – Red Team Penetration Tester with Security Clearance

RPI Group, IncDahlgren, VA🇺🇸United StatesPosted 5 Sept 2026

Why This Role Stands Out

This hybrid role offers a competitive salary of $110,000 - $150,000 annually and a chance to directly impact critical defense systems by identifying security vulnerabilities. You'll thrive here if you possess a strong background in penetration testing and enjoy solving complex technical challenges to inform real-world security strategies.

Quick Overview

Salary
$110k - $150k/yr
Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Dahlgren, VA, United States
Posted
17 hours ago
PHPSOAPSQLAWSEncryptionMFASAMLSSOActive DirectoryAzureC++HTMLJavaLDAPPenetration TestingPerlPowerShellPythonVMwareiOS

Job Description

Position Title: Security Software Engineer – Red Team Penetration Testers
Salary Range: $110,000 to $150,000 Annually
Location: Dahlgren, VA About the Role RPI Group is seeking a skilled, driven Security Software Engineer to support Red Team penetration testing for a mission-focused Navy customer. If you are energized by complex technical challenges, enjoy finding and analyzing security weaknesses, and want your work to inform real-world defensive decisions, this role is for you.

What We’re Looking For Five (5) Years experience in: ◦ Linux – firm grasp/demonstrated knowledge ◦ Associated Training: COMPTIA Linux+ or FedVTE Linux+ Five (5) Years experience in: • Windows – foundational knowledge with good understanding of enterprise networks • Associated Training: Microsoft course (MCSA; Various) Strong working knowledge of common Penetration Testing (PENTEST) tools: ◦ Kali, Metasploit, NMAP, Cobalt Strike ◦ Associated Training: Certified Ethical Hacker or Offensive Security Certified Professional and; Documented experience in at least one of the following: • Penetration Testing (PENTEST) (government or contractor) • Red Team Operations (government or contractor) • Tool/Software Development (exploits/malware, C2, reverse engineering, bug bounties) • Python, C, C Sharp, C++, Go, Perl, Powershell • Web Dev/Web App Dev/Web Penetration testing • NSX, vCenter, vRealize Suite, Horizon View (VDI) and others • PAN-OS • FirePower, Nexus, IOS, ASA • ONTAP, SnapMirror • Active-Directory • Entra ID (Azure AD), Active Directory, SSO, MFA, Azure application integration, Identity Federation. • Automation using Powershell, PowerAutomate, Logic Apps, Graph API. • Microsoft Entra ID and Microsoft 365 in a hybrid environment. • Experience with Palo Alto, Cisco, VMWare, NetApp and Microsoft products. • Extending or integrating on premises AD with Entra ID. • Managing identity and access in Microsoft Entra ID. • Experience conducting Red Team operations in an MDE environment. • Experience with AWS, Cloud Audit, Serverless and Microservice Architecture • Experience working with AWS services (such as EC2, S3, KMS, RDS) and security best practices relevant to those services • Experience with Web Services penetration testing (RESTful and SOAP) Web Authentication protocols (e.g.

OAuth2, SAML, LDAP) PHP, ASP, SQL db's, Java, HTML, No SQL Minimum certification as IAT Level II per DoD 8570.01, or successor.

Minimum certification as penetration tester and possess one of the following certificates: • Offensive Security Certs: Offensive Security Certified Professional (OSCP), Offensive Security Certified Expert (OSCE), Offensive Security Exploitation Expert (OSEE), Offensive Security Wireless Professional (OSWP) • SANS Certs: SEC560 - Network Penetration testing and Ethical Hacking (GPEN Certification), SEC542 - Web App Penetration Testing and Ethical Hacking (GWAPT Certification), SEC660 - Advance Penetration Testing.

Exploit Writing, and Ethical Hacking (GXPN Certification), SEC642 -Advanced Web App Penetration Testing and Ethical Hacking, SEC564 - • Red Team Operations and Threat Emulation • OSD Sponsored Cyber Operation Academy Course (COAC) graduates. • Capture the Flag (CTF) participation (DEFCON, Over-The-Wire (OTW), Hack the Box, USS Secure CTF's) • Security research resulting in a Common Vulnerabilities and Exposures (CVE) Possess the ability to: • Debug and reverse engineer software. • Analyze Windows Events and Linux syslog's, boot logs and dmesg logs. • Program and debug Web 2.0, Java, Perl, Ada, C++, Tool Command Language (tcl/tk) scripts and graphical user interfaces (GUis) using Microsoft Visual tel and Rational ClearCase for software configuration management. • Program and debug Web 2.0, Java, Perl, Ada, C++, Tool Command Language (tcl/tk) scripts and graphical user interfaces (GUis) using Microsoft Visual tel and Rational ClearCase for software configuration management. • Recommend software modifications to systems to mitigate known vulnerabilities.

Operate and administrate computer systems running HP-UX, UNIX, Solaris, Linux and Microsoft Windows. • Identify security flaws in compiled and human readable source code. Understand ◦ code utilizing real-time VxWorks and Lynx OS operating systems, Common Object Resource Broker Architecture (CORBA), firewalls and networking protocols. • Understand how to implement NSA approved encryption technologies and devices. Apply DISA Security Technical Implementation Guides (STIGs). • Apply virtual hosting and server technology in system architectures.

Understand and apply the concept of deceptive technology such as honey pots in system architectures. • Participate in Code Reviews. Perform Static Source Code Analysis. Author recommendations for improving software and code design. • Contribute to a System Security Administrator and Operators Manual (SSAOM) Must be a U.S. Citizen and Possess an Active Security Clearance RPI Group, Inc. is an

Equal Opportunity Employer, including individuals with disabilities and protected veterans.

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