Lead Mainframe Security Engineer: z/OS ACF2/TSS/RACF Expert

Intepros; Florida; On-site; USD 120,000 - 180,000; Full time

Job summary

Intepros is seeking an experienced Mainframe Security Engineer to provide day-to-day support for vulnerability management and z/OS security initiatives. The role focuses on ACF2, TSS, and RACF, offering guidance to harden environments and drive security programs.

You will collaborate with security teams, perform data analysis and asset modeling, and help document project plans and controls for client-facing activities.

Qualifications

• 7–10+ years of zSecure Audit experience, including CARLa programming.
• Strong experience with Broadcom ACF2 and/or Top Secret (TSS).
• Hands-on experience leveraging z/OS RACF STIGs for security hardening.
• Strong knowledge of Mainframe REXX, IBM SYNCSORT, and ICETOOL.
• Experience with mainframe security vulnerability management.
• Strong communication, documentation, and client-facing skills.
• Bachelor’s degree or 15+ years of Mainframe Security experience.

Responsibilities

• Serve as a subject matter expert in z/OS Mainframe Security, including ACF2, TSS, and RACF.
• Support vulnerability management initiatives, security hardening, and vulnerability remediation.
• Apply z/OS STIGs and security controls to mainframe environments.
• Perform detailed data analysis and asset modeling to support security projects.
• Provide guidance on security standards and hardening requirements.
• Interface directly with client teams to provide training and day-to-day support for vulnerability and utility tools.
• Develop and maintain project documentation and communicate between mainframe engineering and information security teams.

Skills

Mainframe security

Vulnerability management

Client-facing

Documentation

Communication

Education

Bachelor’s degree or 15+ years of Mainframe Security experience

Tools

zSecure Audit

ACF2

TSS

RACF STIGs

z/OS STIGs

REXX

SYNCSORT

ICETOOL

JIRA

Confluence

SharePoint

Job description

Intepros is seeking an experienced Mainframe Security Engineer to provide day-to-day support for vulnerability management and z/OS security initiatives. The role focuses on ACF2, TSS, and RACF, offering guidance to harden environments and drive security programs.

You will collaborate with security teams, perform data analysis and asset modeling, and help document project plans and controls for client-facing activities.