Mainframe Cyber Security Engineer - RACF

Mainframe Cyber Security Engineer - RACF About the role

• Help design, implement, and maintain security policies and procedures for mainframe systems.
• Monitoring mainframe security logs and alerts to detect and respond to potential security incidents.
• Recommend remediation strategies and remediate vulnerabilities.
• Participate in incident response activities, including investigation and reporting of security breaches.
• Collaborate with cross-functional teams to ensure security best practices are integrated into system development and operations.
• Create, review and maintain internal documentation (Run books, processes and procedures).
• Ability to meet assigned timelines and complete workloads within SLA.
• Help with daily monitoring of calls, for access requirements and requests, prioritise and provide support for user issues with access and system functionality.
• Review and maintain Role Based Access Controls (RBAC), Privileged access, JML (Joiners/Leavers/Movers), Break glass and Emergency processes.

• Extensive RACF & z/OS experience in mainframe security, including IBM z/OS, related technologies, and other z/OS components.
• SME RACF security product experience is vital.
• Extensive use of IBM z/Secure - including z/Alert, Command Verifier, Access Monitor, RACF Offline and CARLA reporting.
• Understanding of Role Based Access Controls (RBAC).
• Understanding of security framework protocols and compliance standards (e.g., NIST, ISO 27001, PCI-DSS, GDPR).
• Knowledge of ICFR controls - (previously Sarbanes-Oxley), security assessments and audits.
• Proficiency in security tools and technologies, such as intrusion detection systems, firewalls, and encryption methods for z/OS.
• Excellent analytical and problem-solving skills, and able to work under tight timescales.
• Superb communication both verbal and written, with the ability to convey complex security concepts to non-technical key players and others.
• Familiarity with programming languages such as REXX, COBOL, JCL, CLIST, ISPF etc.

• 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; we also offer 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 to support your mental wellbeing.

Our vision at Tesco is to become every customer’s favourite way to shop, whether they are at home or out on the move. Our core purpose is ‘Serving our customers, communities and planet a little better every day’. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We’re committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities.

Entry level

Full-time

Information Technology

Retail