Senior Red Team Penetration Tester

EY; Tulsa (OK); On-site; USD 150,000 - 190,000; Full time

Job summary

EY is seeking a Senior Attack & Penetration Tester to contribute to client resilience through sophisticated offensive security operations. You will plan, lead, and execute complex testing across diverse environments, applying intelligence-led approaches to emulate adversaries and identify exploitable paths.

This role spans external/internal networks, AD, cloud, APIs, and more. You will mentor junior testers, guide methodology development, and communicate risk insights to technical and executive

Qualifications

• Demonstrated ability to plan and execute complex penetration tests and red team engagements.
• Ability to identify and exploit vulnerabilities across networks, AD, cloud, and APIs.
• Experience applying threat-informed testing techniques aligned with MITRE ATT&CK.

Responsibilities

• Plan, lead, and execute penetration tests and red team engagements.
• Identify vulnerabilities across external and internal networks, AD, cloud, APIs, web, and mobile apps.
• Translate testing results into actionable remediation and security controls.
• Mentor junior team members and coordinate testing workstreams.
• Produce client reports and executive-level risk insights.

Skills

Advanced problem-solving

Penetration testing

Red team engagements

Threat-informed testing

Lead technical testers

Team mentorship

Executive communication

Travel up to 80%

Tools

MITRE ATT&CK

Job description

EY is seeking a Senior Attack & Penetration Tester to contribute to client resilience through sophisticated offensive security operations. You will plan, lead, and execute complex testing across diverse environments, applying intelligence-led approaches to emulate adversaries and identify exploitable paths.

This role spans external/internal networks, AD, cloud, APIs, and more. You will mentor junior testers, guide methodology development, and communicate risk insights to technical and executive