✦ Luna Orbit — Cybersecurity

Senior Mainframe Security Engineer

at Capital One Financial

📍 2 Locations Unknown 💰 $161K – $184K USD / year Posted April 15, 2026
Salary $161K – $184K USD / year
Type Not Specified
Experience senior
Exp. Years At least 3 years
Education High school diploma, GED or equivalent certification
Category Cybersecurity

Serve as a senior mainframe security engineer supporting a mainframe identity platform for Identity Access Management needs. Engineer security for RACF and CICS security databases, automate testing, and provide operational support for change and incident management.

  • Engineer security for RACF Security Database and CICS Security Sub-System database
  • Automate component & integration tests
  • Investigate and resolve user/system security issues
  • Provide operational support with change and incident management processes
  • Collaborate with tech leads for integrated end-to-end design and delivery

Own security engineering for RACF Security Database and CICS Security Sub-System database on IBM z/OS. Apply CICS Transaction Security and z/OS knowledge (RACF, TSO, ISPF, SDSF, JCL) while automating component and integration tests and troubleshooting security issues.

The ideal candidate is a senior mainframe security engineer with 3+ years of CICS Transaction Security experience and strong IBM z/OS fundamentals, including RACF, TSO, ISPF, SDSF, and JCL. They are automation-focused, responsible for RACF Security Database and CICS Security Sub-System security engineering, and can investigate and resolve user/system security issues.

CICS Transaction Security including sub-system security setupIBM z/OS including knowledge of RACFTSOISPFSDSFand JCLinvestigating and resolving user/system security issuesRACF Security DatabaseCICS Security Sub-System databaseautomation component & integration tests
troubleshooting end user issues in Access CertificationsCyber Security Domain specifically IAM Lifecycle ManagementFIS Systematics GN Transaction SecuritySailpoint IdentityIQSQLRole Based Access Controls (RBAC)Amazon Web Services (AWS)CISSP CertificationAWS Certification
RACFIBM z/OSTSOISPFSDSFJCLCICSRACF Security DatabaseCICS Security Sub-System databaseSailpoint IdentityIQAmazon Web Services (AWS)
RACFCICS Transaction SecurityIBM z/OSTSOISPFSDSFJCLsecurity engineeringIdentity Access Managementautomationcomponent & integration testsmonitoringtroubleshootingchange and incident management processesdata security best practiceSailpoint IdentityIQSQLRole Based Access Controls (RBAC)Amazon Web Services (AWS)
Mainframe identity platformIdentity Access Management needsRACF Security DatabaseRACFCICS Security Sub-System databaseCICS Transaction SecurityCICSIBM z/OSTSOISPFSDSFJCLsecurity engineeringdata security best practiceopen source technologiescomponent & integration testsautomation of component and integration testsmonitoringtroubleshootingchange and incident management processesuser/system security issues investigation and resolutionRole Based Access Controls (RBAC)Amazon Web Services (AWS)SQLFIS Systematics GN Transaction SecurityEOR'sSOR'sTAR'sSailPoint IdentityIQAccess CertificationsIAM Lifecycle Management
curiositybuild strong relationships with customersstakeholdersand team membersprovide regular updates to management teamcollaborating with tech leadsincident/problem resolution communication

Preferred

CISSPAWS Certification
Industry Banking
Job Function Mainframe security engineering for Identity Access Management (RACF/CICS on IBM z/OS)
Role Subtype Security Engineer
Tech Domains Cybersecurity
Senior Mainframe Security EngineerMainframeMainframe identity platformIdentity Access ManagementRACFRACF Security DatabaseCICSCICS Transaction SecurityCICS Security Sub-System databaseIBM z/OSTSOISPFSDSFJCLsecurity engineeringuser/system security issuescomponent & integration testsautomationdata securityopen sourceSailpoint IdentityIQAmazon Web Services (AWS)Role Based Access Controls (RBAC)SQLAccess CertificationsIAM Lifecycle ManagementFIS Systematics GN Transaction SecurityEOR'sSOR'sTAR'sCISSPAWS Certification

3+ years of CICS Transaction Security including sub-system security setup, 3+ years of IBM z/OS including knowledge of RACF, TSO, ISPF, SDSF, and JCL, 3+ years investigating and resolving user/system security issues

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