Mainframe Security Architect

ZipRecruiter; London; On-site; GBP 110,000 - 150,000; Full time

Job summary

A leading company in IT infrastructure is seeking a Security Architect with extensive experience in Mainframe Security to lead its security architecture strategy. The role involves designing advanced security frameworks, collaborating with senior leadership, and ensuring compliance with regulatory standards. This position offers opportunities for professional development and engagement with Fortune 100 clients within a dynamic team.

Benefits

Access to certifications across Microsoft, Google, AWS

Work with Fortune 100 clients

Comprehensive benefits tailored to your life journey

Qualifications

• 7–15 years of experience in security architecture in a Service Provider setting.
• Expertise in Mainframe Security technologies.
• Strong understanding of Z platform technologies and security frameworks.

Responsibilities

• Lead the design and execution of enterprise-wide security architecture.
• Perform threat modelling and risk analysis across IT assets.
• Advise leadership on emerging threats and best practices.

Skills

Risk Analysis

Threat Modelling

Encryption

IAM

Disaster Recovery

Job description

Job Description

Role: Security Architect – Mainframe

Location: London preference

Sector: Cybersecurity

Salary: £110,000 - £150,000 per annum + bonus & benefits

About the Company

Our client is a global leader in IT infrastructure and digital transformation, supporting mission-critical systems across industries. With a strong commitment to innovation, , and continuous improvement, they are shaping the future of enterprise technology.

The Opportunity

We’re seeking an experienced Security Architect to join a high-impact team within a major Service Provider environment. This is a strategic role where you’ll lead the development and implementation of advanced security frameworks, ensuring resilience against evolving threats and compliance with global standards.

You’ll collaborate with senior leadership, conduct risk assessments, and design security solutions that protect business objectives while enabling innovation.

Key Responsibilities

• Lead the design and execution of enterprise-wide security architecture
• Perform threat modelling and risk analysis across IT assets
• Implement encryption, IAM, and authorization technologies
• Conduct vendor and third-party security reviews
• Advise leadership on emerging threats and best practices
• Ensure alignment with regulatory standards (e.g., NIST, GDPR, HIPAA)

What You Bring

• 7–15 years of experience in security architecture, ideally in a Service Provider setting
• Expertise in Mainframe Security (z/OS, RACF/ACF2/TopSecret, encryption, IAM, SIEM, etc.)
• Strong understanding of Z platform technologies and security frameworks
• Experience with compliance, penetration testing, and disaster recovery
• A proactive mindset, customer-centric approach, and inclusive collaboration style

Why This Role Stands Out

• Access to certifications across Microsoft, Google, AWS, and more
• Work with Fortune 100 clients and cutting-edge technologies
• Inclusive culture with employee networks and volunteering opportunities
• Comprehensive benefits tailored to your life journey

Ready to Secure the Future?

If you're ready to elevate your career and make a global impact, we want to hear from you.

Reference: AMC/JWH/MFDA1