Join us as a Mainframe Security Services Analyst

• Hone your analytical skills as you'll deliver key Resource Access Control Facility (RACF) administration activities, ensuring timely handling of customer requests in line with agreed SLAs, and supporting project-driven security requirements
• You'll be supporting the platforms' operational stability and technology performance, including maintaining any system's utilities and tools provided by the platform
• This is an opportunity to mentor and coach junior analysts, while promoting a culture of continuous improvement

What you'll do

As a Mainframe Security Services Analyst , you'll act as a trusted advisor, providing general security guidance to users across the organisation. In addition, you will manage ICSF Master Key activities when required, ensuring secure handling and compliance with cryptographic standards.

In addition, you'll collaborate with cross-functional teams to deliver effective services, drive continuous improvement through AI and automation, and support projects with security expertise, including participation in an on-call rota and out-of-hours changes

Your role will involve:

• Performing day-to-day RACF administration and security management
• Contributing to the platform risk culture, making sure that risks are discussed and understood at every step, and effectively collaborating to mitigate risk
• Contributing to the planning and execution of work within the platform and the timely servicing of feature development requests from cross platform initiatives, and supporting the delivery of regulatory reporting
• Participating and seeking out opportunities to simplify the platform infrastructure, architecture, services and customer solutions, guarding against introducing new complexity
• Building relationships with stakeholders across Security, Mainframe Services, Projects, and Application teams, ensuring alignment and effective delivery of security services
• Making sure that controls are applied and constantly reviewed, primarily against SOX, to ensure full compliance to all our policies and regulatory obligations

The skills you'll need

To succeed in this role, you'll need advanced RACF administration skills and a strong understanding of the mainframe stack, including ICSF, JCL, REXX, and zSecure or CARLA. You'll bring experience working with Trusted Key Entry (TKE), cryptography, and digital certificates, alongside proficiency in ServiceNow and a solid grasp of security standards such as DORA, PCI DSS, and NIST. Familiarity with modern automation and tooling, including Git, Ansible, and YAML, is also essential .

You'll also need:

• Technical knowledge, including platform, technology, products and domains, with the ability to streamline and automate processes
• Experience working in an operational environment, with ITIL awareness (incident, change and service request management) and an understanding of Agile practices
• An understanding of operational principles and platform risk culture, ensuring risks are identified, discussed, and effectively mitigated through strong collaboration
• Strong collaboration, stakeholder management, mentoring, and coaching skills

Hours
35

Job Posting Closing Date:
10/07/2026

Ways of Working:Remote First