Mainframe Security Analyst
£450-£500 p/d Inside IR35
Remote - 1 day per month required on-site in Welwyn Garden City
6 month contract
Looking for an experienced Mainframe Security Analyst to join a dedicated Mainframe RACF Security team. This role focuses on protecting critical Mainframe environments, supporting security initiatives, managing access controls and ensuring effective security monitoring.
Key Responsibilities:
* Manage and action RACF access requests and changes
* Support users with access queries and issues
* Monitor daily security tasks, controls, and system alerts
* Administer RBAC, PAM, and privileged access on the Mainframe
* Maintain documentation including runbooks, processes, and procedures
* Support audits, evidence gathering, and remediation activities
* Assist with incidents, projects and wider security initiatives
* Analyse, design and implement enhancements to Mainframe security
* Perform testing for new security or system modifications
* Manage and maintain RACF digital certificates
* Collaborate with IT and business teams to resolve access-related issues
Required Experience:
1. Strong RACF and z/OS expertise
2. Experience with IBM zSecure (z/Alert, Command Verifier, Access Monitor, CARLA)
3. Skilled with Mainframe tools such as JCL, REXX, CLIST, ISPF...