Mainframe Security Architect - z/OS | RACF | ACF2
Mainframe Security Architect - z/OS | RACF | ACF2

Mainframe Security Architect - z/OS | RACF | ACF2

Nottingham Full-Time 54000 - 84000 Β£ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and implement security frameworks for IBM Z Series mainframes.
  • Company: Join a leading enterprise infrastructure team focused on mainframe security.
  • Benefits: Enjoy ongoing training, certifications, and leadership development opportunities.
  • Why this job: Make a significant impact in a collaborative culture that values innovation and resilience.
  • Qualifications: Experience with z/OS, RACF, ACF2, and enterprise-wide IAM is essential.
  • Other info: This role offers strategic influence across a complex, high-volume infrastructure.

The predicted salary is between 54000 - 84000 Β£ per year.

We’re seeking an experienced Mainframe Security Architect to join an enterprise infrastructure team, with a focus on safeguarding their IBM Z Series environments. You will be at the forefront of mainframe security strategy, designing and implementing robust access controls, monitoring systems, and risk management frameworks. This is a high-impact role with wide scope for technical authority and strategic influence across a complex, high-volume infrastructure.

Key Responsibilities

  • Architect and maintain end-to-end security frameworks for IBM Z Series mainframe environments.
  • Lead threat modeling, vulnerability assessments, and remediation plans specific to z/OS, RACF, ACF2 or Top Secret environments.
  • Collaborate with infrastructure, application, and compliance teams to implement secure configurations and access control models.
  • Drive security policy enforcement across core systems including CICS, DB2, IMS, and MQ.
  • Evaluate and integrate security tools (e.g. IBM zSecure, CA ACF2 utilities, encryption modules) into mainframe operations.

Experience

  • Proven experience as a security architect or engineer in z/OS or IBM Z Series environments.
  • Strong command of RACF, ACF2, or Top Secret mainframe security systems.
  • Hands-on experience with enterprise-wide identity and access management (IAM) for mainframes.
  • Expertise in encryption, data masking, and privileged access control on z/OS.
  • Experience designing controls aligned with ISO 27001, NIST, or GDPR compliance.

Why Join?

  • Be part of a mission-critical function supporting large-scale enterprise operations.
  • Work in a collaborative, forward-thinking culture with a focus on innovation and resilience.
  • Access to ongoing training, certifications, and leadership development.

Mainframe Security Architect - z/OS | RACF | ACF2 employer: LinkedIn

Join a leading enterprise infrastructure team as a Mainframe Security Architect, where you will play a pivotal role in shaping the security landscape of IBM Z Series environments. Our collaborative and innovative work culture prioritises employee growth through ongoing training and leadership development, ensuring you are equipped to tackle high-impact challenges. With a focus on resilience and strategic influence, this position offers a unique opportunity to make a meaningful impact in a mission-critical function.
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Contact Detail:

LinkedIn Recruiting Team

StudySmarter Expert Advice 🀫

We think this is how you could land Mainframe Security Architect - z/OS | RACF | ACF2

✨Tip Number 1

Network with professionals in the mainframe security field. Attend industry conferences or webinars focused on z/OS, RACF, and ACF2 to meet potential colleagues and learn about the latest trends and technologies.

✨Tip Number 2

Showcase your hands-on experience with IBM Z Series environments. Engage in discussions on forums or social media platforms where you can share your insights and solutions related to mainframe security challenges.

✨Tip Number 3

Consider obtaining relevant certifications that demonstrate your expertise in mainframe security, such as those related to ISO 27001 or NIST compliance. This will not only enhance your skills but also make your profile more attractive to us.

✨Tip Number 4

Prepare for technical interviews by brushing up on your knowledge of security frameworks and tools like IBM zSecure and CA ACF2 utilities. Be ready to discuss how you've implemented security measures in past roles.

We think you need these skills to ace Mainframe Security Architect - z/OS | RACF | ACF2

Mainframe Security Architecture
z/OS Expertise
RACF Administration
ACF2 Management
Top Secret Security Systems
Threat Modelling
Vulnerability Assessment
Risk Management Frameworks
Identity and Access Management (IAM)
Encryption Techniques
Data Masking
Privileged Access Control
Security Policy Enforcement
ISO 27001 Compliance
NIST Standards
GDPR Compliance
Collaboration Skills
Technical Authority
Strategic Influence

Some tips for your application 🫑

Tailor Your CV: Make sure your CV highlights your experience with z/OS, RACF, and ACF2. Use specific examples of your work in mainframe security architecture to demonstrate your expertise.

Craft a Compelling Cover Letter: In your cover letter, explain why you are passionate about mainframe security and how your skills align with the responsibilities outlined in the job description. Mention any relevant certifications or training you've completed.

Showcase Relevant Projects: If you have worked on projects involving threat modeling, vulnerability assessments, or security policy enforcement, be sure to include these in your application. Detail your role and the impact of your contributions.

Highlight Compliance Knowledge: Since the role involves compliance with standards like ISO 27001 and NIST, emphasise any experience you have in these areas. This will show that you understand the regulatory landscape and can contribute effectively.

How to prepare for a job interview at LinkedIn

✨Showcase Your Technical Expertise

Be prepared to discuss your hands-on experience with z/OS, RACF, and ACF2 in detail. Highlight specific projects where you designed security frameworks or led vulnerability assessments, as this will demonstrate your capability to handle the responsibilities of the role.

✨Understand the Company’s Security Needs

Research the company’s existing mainframe security strategies and be ready to suggest improvements or innovations. This shows that you are proactive and genuinely interested in contributing to their security posture.

✨Prepare for Scenario-Based Questions

Expect questions that assess your problem-solving skills in real-world scenarios. Practice articulating how you would approach threat modelling or implement access controls in complex environments, as this will showcase your strategic thinking.

✨Emphasise Collaboration Skills

Since the role involves working with various teams, be sure to highlight your experience in cross-functional collaboration. Share examples of how you’ve successfully worked with infrastructure, application, and compliance teams to achieve security goals.

Mainframe Security Architect - z/OS | RACF | ACF2
LinkedIn
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  • Mainframe Security Architect - z/OS | RACF | ACF2

    Nottingham
    Full-Time
    54000 - 84000 Β£ / year (est.)

    Application deadline: 2027-07-06

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    LinkedIn

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