Mainframe and Web Application Security Senior Engineer - Senior Penetration Tester

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Regular or Temporary:

Regular

Language Fluency:
English (Required)

Work Shift:

1st shift (United States of America)

Please review the following job description:

Performs advanced penetration testing and security assessments across enterprise technologies, with a primary focus on mainframe environments. Identifies and validates vulnerabilities, evaluates attack paths and control weaknesses, documents clear and defensible findings, and partners with technology teams to reduce risk. Contributes to testing methodologies, tooling, automation, and technical guidance that improve the effectiveness and scalability of the penetration testing program.

Telecommuting/Remote workstyle may be considered for well-qualified individuals located outside of the Truist footprint. Teammate will work hours supporting Eastern Standard Time

For this opportunity, Truist will not sponsor an applicant for work visa status or employment authorization, nor will we offer any immigration-related support for this position (including, but not limited to H-1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN-1 or TN-2, E-3, O-1, or future sponsorship for U.S. lawful permanent residence status.)

• Conducts black box, grey box and assumed breach penetration tests of enterprise z/OS environments, covering the USS (Unix System Services), external security managers (RACF, ACF2, Top Secret) subsystems, (CICS, IMS, db2, MQ) batch processing (JCL, JES2) TSO/ISPF, and network facing services (TN3270, FTP, Z/OS Connect and Rest APIs, NJE)
• Uses manual techniques custom scripting (REXX, JCL, Assembler, Python) and offensive tooling to enumerate users and resources, map datasets, access unprotected spool and job output, and exploit misconfigured CICS transactions, and insecure interfaces)
• Evaluates exploitability and business impact and applies sound judgment when determining finding severity and risk.
• Documents findings with clear reproduction steps, supporting evidence, impact statements, and practical remediation recommendations.
• Presents and defends technical findings in discussions with application teams, mainframe engineers, technology leaders, risk partners, and other stakeholders.
• Performs validation and retesting to confirm remediation and risk reduction, and maintains testing evidence needed to support audit, regulatory, and compliance requirements (PCI DSS, SOX)
• Partners with internal and external testing teams to improve mainframe testing coverage, methodologies, playbooks, tooling, automation, and repeatable processes.
• Performs peer reviews of penetration testing reports and provides technical guidance and mentorship to other security professionals.
• Maintains current knowledge of mainframe attack techniques, security controls, platform changes, offensive security practices, and relevant industry threats.

• Bachelor’s degree or equivalent education, training, and work-related experience.
• Minimum of 7 years of experience in security engineering or related cybersecurity roles.
• Deep specialized knowledge in cybersecurity principles, theories, and concepts.
• Proven experience in software development lifecycle security practices.
• Deep knowledge of threat modeling, security testing, and penetration testing.
• Experience implementing and managing complex information security technologies.

• Five or more years of penetration testing, red team, offensive security, vulnerability research, or related cybersecurity experience.
• Hands-on experience…