Lead Mainframe zSecurity Systems Administration ACF2

Location : Oslo

As a Lead Mainframe zSecurity System Administrator (ACF2), you will play a key role in securing critical systems, solving complex security challenges, and ensuring compliance in a fast-paced environment. You’ll oversee security operations, work with top-tier clients, and collaborate with cross-functional teams to enhance mainframe security and mitigate risks.

No two days are the same—you’ll be managing systems data, responding to security incidents, and providing proactive solutions to strengthen security compliance .

Key Responsibilities :

Develop and implement security policies, procedures, and best practices for mainframe environments

Oversee compliance, auditing, and security health checks , delivering reports on behalf of the customer

Manage certificate renewals and implementations in mainframe environments

Monitor and respond to security incidents, vulnerabilities, and threats

Work with cross-functional teams to integrate security measures into all aspects of mainframe operations

Provide technical leadership and mentorship to junior team members

Stay ahead of the latest security trends, technologies, and regulatory requirements

What You Bring :

5+ years of experience in mainframe security administration

Expertise in ACF2 administration (user management, access control, security policies)

Strong knowledge of mainframe security principles and z / OS systems

Familiarity with security tools and technologies used in mainframe environments

Fluent in English (must-have)

• Nice to Have :
• Experience with RACF or Top Secret.
• Knowledge of encryption technologies and data protection methods
• Understanding of regulatory requirements (GDPR, HIPAA, SOX)

What’s in It for You?

Recruitment Firm - Sperton

This position is published and managed by Sperton Global , global recruitment and consulting firm.