offpeak

Cummins

Cybersecurity Defense Analyst - Senior

500 Jackson St, Columbus, IN 47201

On-site · Full-time

First seen by offpeak October 4, 2026

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We are looking for a talented Cybersecurity Defense Analyst- Senior to join our team specializing in Systems/Information Technology for our Corporate organization in Columbus, IN. 

 

In this role, you will make an impact in the following ways:

 

To be successful in this role you will need the following:

 

Education, Licenses, Certifications: 

Experience: 

 

Job Description / Responsibilities
• Support and execute adversary emulation, purple team, and security validation activities across enterprise environments.
• Operate and maintain Breach and Attack Simulation (BAS) and adversary emulation platforms to validate defensive controls and identify detection gaps.
• Conduct security testing of cloud, hybrid, and on-premises environments to identify exploitable weaknesses and security control deficiencies.
• Partner with Threat Intelligence and Threat Hunting teams to emulate relevant attacker behaviors, techniques, and procedures.
• Assist in developing repeatable attack scenarios aligned to MITRE ATT&CK techniques and organizational threat priorities.
• Validate detection and response capabilities by coordinating with defensive security teams during purple team exercises.
• Help automate offensive testing workflows, validation processes, and operational reporting through scripting and tooling enhancements.
• Document findings, attack paths, detection gaps, and remediation recommendations in a clear and actionable manner.
• Contribute to the continuous improvement of proactive security validation capabilities, processes, and operational maturity.
• Support offensive cyber operations initiatives including targeted assessments, adversary simulation activities, and security research efforts.
• Support the engineering and development of remedial workflows for findings generated by adversarial and offensive activities

Requirements / Qualifications
• Experience in cybersecurity operations, cloud security, security engineering, offensive security, or related technical security disciplines.
• OCSP or equivalent certification holder or the willingness to obtain such a certification. 
• Familiarity with cloud platforms such as AWS, Azure, OCI and associated security concepts.
• Understanding of common attacker tactics, techniques, and procedures (TTPs) and frameworks such as MITRE ATT&CK.
• Exposure to scripting or automation using languages such as Python, PowerShell, or Bash.
• Familiarity with security validation, BAS, detection engineering, purple teaming, penetration testing, or adversary emulation concepts is preferred.
• Strong analytical, troubleshooting, and collaboration skills with the ability to work across offensive and defensive security functions.