Mainframe Cyber Security Analyst - RACF / Tesco Technology
We are seeking a skilled Mainframe Security Analyst to join our team as part of the Mainframe RACF Security group. Your role is to protect the Tesco mainframes by supporting security initiatives and administration, maintaining control over access and security monitoring of the mainframe platform, and assisting business users with access-related queries.
Responsibilities
* Respond to user requests and issues assigned to the RACF ticketing system.
* Review and action change requests for RACF access.
* Monitor daily tasks and controls to maintain operational efficiency.
* Respond to security alerts from mainframe security monitoring.
* Administer the RACF Roles Based Access application (RBAC).
* Administer the RACF privileged access management (PAM).
* Recertify access to roles with data owners.
* Create, review and maintain internal documentation (run books, processes and procedures).
* Assist in audit evidence and remediation activities.
* Follow up on access‑management deficiencies identified in risk reviews, self‑assessments, risk assessments and internal/external audits.
Qualifications
* Extensive RACF/z/OS specialist knowledge with understanding of other related z/OS components.
* Understanding of security concepts and technologies within a Mainframe environment.
* Experience with IBM zSecure, including z/Alert, Command Verifier, Access Monitor and RACF Offline and CARLA reporting.
* Knowledge of IBM RACF mainframe security software & configuration.
* Experience with mainframe languages such as JCL, REXX, CLIST, ISPF.
* Experience documenting working processes, procedures and support activities to a high standard.
* Substantial problem‑solving skills; able to think laterally and conceptually.
* Effective communication with team and others, tailored to the audience.
* Understanding of Role Based Access Controls (RBAC).
* Understanding of ICFR controls (previously Sarbanes‑Oxley).
* Experience in digital certificate management & implementation.
* Knowledge of RACF remote sharing facility (RRSF).
Benefits
* Annual bonus scheme of up to 20% of base salary.
* Holiday starting at 25 days plus a personal day (plus bank holidays).
* Private medical insurance.
* 26 weeks maternity and adoption leave (after 1 year’s service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, and 6 weeks fully paid paternity leave.
* Free 24/7 virtual GP service; Employee Assistance Programme (EAP) for you and your family; free access to a range of experts for mental wellbeing.
About Tesco
Our vision at Tesco is to become every customer’s favourite way to shop, whether at home or on the move. We serve our customers, communities and planet a little better every day, acting responsibly and sustainably. We value diversity and inclusion and are committed to providing an accessible recruitment process. We offer a mix of office and remote working, encouraging a blended work pattern.
Seniority Level
Entry level
Employment Type
Full‑time
Job Function
Information Technology
Industry
Retail
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