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Cybersecurity Engineer - Level 3
US remote full time senior Dec 30, 2025
About this role
About Rhodian Group
Rhodian Group helps businesses build and manage their network environments with predictably priced managed IT services so they can focus on their core strengths and growth initiatives. They also help businesses identify and reduce cybersecurity and non-compliance risks. Their combination of IT, cybersecurity, and compliance services helps businesses operate safely, while complying with industry mandates and regulatory requirements.
Role Overview
The Cybersecurity Level 3 Engineer is a senior technical security role responsible for executing and leading penetration testing, vulnerability management, and advanced security assessments across enterprise or client environments. This position requires deep technical expertise, the ability to validate real-world exploitability, and strong collaboration with engineering and leadership teams to reduce organizational risk.
Key Responsibilities
Perform internal, external, web application, and network penetration tests using industry-standard methodologies
Validate vulnerability scanner findings through manual testing and exploitation techniques
Conduct attack simulations and adversary emulation aligned to real-world threat scenarios
Lead vulnerability management lifecycle activities including prioritization, remediation validation, and risk acceptance
Identify false positives and confirm true security weaknesses through hands-on analysis
Develop and maintain penetration testing methodologies, playbooks, and reporting standards
Produce detailed penetration testing and vulnerability reports with risk ratings and remediation guidance
Collaborate with SOC, infrastructure, cloud, and application teams to remediate identified risks
Support red team and purple team exercises and threat modeling activities
Assist with security architecture reviews and secure design recommendations
Mentor Level 1 and Level 2 security engineers
Support compliance-driven testing requirements (SOC 2, ISO 27001, PCI DSS, NIST, CMMC)
Required Qualifications
4+ years of experience in cybersecurity with a strong focus on penetration testing and vulnerability management
Hands-on experience with manual penetration testing techniques
Strong knowledge of common vulnerabilities (OWASP Top 10, CWE, CVE)
Experience with vulnerability scanning tools (Nessus, Qualys, Rapid7, OpenVAS)
Proficiency with penetration testing tools (Burp Suite, Metasploit, Nmap, BloodHound, SQLmap)
Strong understanding of Windows, Linux, Active Directory, networking, and authentication mechanisms
Experience validating exploitability and business impact of vulnerabilities
Familiarity with the MITRE ATT&CK framework
Strong written communication and reporting skills
Preferred Qualifications
Experience conducting cloud penetration testing (Azure, AWS, Microsoft 365)
Experience with identity and privilege escalation attacks (Active Directory, Kerberos, MFA bypass concepts)
Exposure to red team or purple team operations
Scripting or automation experience (Python, PowerShell, Bash)
Experience in an MSP or consulting environment
Relevant certifications: OSCP, OSCE, GPEN, GWAPT, CEH, CRTO, PNPT
What Success Looks Like
Vulnerabilities are accurately validated and prioritized based on real risk
Penetration testing results are actionable, clear, and respected by engineering teams
False positives are reduced and scanner results are meaningfully improved
Security posture improves measurably over time
Junior engineers are coached and elevated technically
Leadership receives clear, risk-based insights
Locations: Remote (United States)