Network Security Specialist II (Penetration Tester / Red Team)

We are seeking a Network Security Specialist II (Penetration Tester / Red Team Operator) to support a secure Research, Development, Test & Evaluation (RDT&E) environment within a DoD network. This role focuses on offensive cybersecurity operations, vulnerability assessment, and penetration testing to strengthen enterprise network defense capabilities., * Conduct penetration testing against web applications, systems, and network infrastructure using tools such as Burp Suite

• Perform Red Team activities to identify vulnerabilities across enterprise environments
• Develop and execute proof-of-concept (POC) exploits to validate potential vulnerabilities
• Conduct vulnerability enumeration and support remediation efforts
• Ensure signature-based scanning tools and security assessment platforms are operational
• Draft and review Standard Operating Procedures (SOPs) and technical documentation
• Support compliance with DoD STIGs and cybersecurity best practices
• Analyze system configurations, network traffic, and infrastructure security posture

The ideal candidate has hands-on experience with Red Team activities, vulnerability enumeration, Linux systems, scripting, and DoD security compliance frameworks (STIGs, ACAS)., * Active Secret clearance

• IAT Level II Certification (Security+, CySA+, GSEC, GICSP, CND, SSCP, or equivalent)
• MCSA, Linux+, or equivalent operating system certification (or equivalent training)
• 4+ years of relevant cybersecurity or network security experience
• Experience as a System Administrator or Network Administrator
• Knowledge of core Linux systems and command-line operations
• Experience with vulnerability scanning, enumeration, and remediation
• Familiarity with DoD STIG implementation and compliance
• Scripting experience (PowerShell, Bash, or Python preferred)
• Experience working with virtual machines (vSphere, VirtualBox, KVM, QEMU), * Experience with Burp Suite and related web application security tools
• ACAS suite management, installation, troubleshooting, and upkeep
• Experience with Kali Linux tools (nmap, tcpdump, Wireshark)
• Understanding of web technologies and HTML structure
• Knowledge of OSI model and network traffic flow analysis
• Experience with Windows Server (Active Directory, Domain Controllers, GPO, SCCM, DISM)
• Intermediate to advanced knowledge of network configuration (switches and routers)
• Basic vulnerability research and exploitation experience
• Exposure to cloud infrastructure security
• Penetration testing and Red Team engagement experience

At Seneca Resources, we are more than just a staffing and consulting firm - we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. When you work with Seneca, you're choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way. Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.