Mainframe Security Specialist

This is a remote position. Role Overview: We are looking for a highly experienced Mainframe Security Specialist to support a South African financial services client on a short-term, high-impact engagement . This role focuses on addressing a critical audit finding related to MQ security on mainframe systems , ensuring robust access controls and security patterns are implemented ahead of a strict remediation deadline. The successful candidate will bring deep expertise in mainframe security, MQ environments, and Broadcom Top Secret , along with the ability to collaborate with other senior engineers and SMEs. Key Responsibilities: Lead remediation of MQ security vulnerabilities within a mainframe environment. Design and implement secure access control frameworks using Broad-com Top Secret. Define and document security patterns and controls across: Batch processing environments CICS transactions User access and permissions Third-party integrations Collaborate with mainframe and MQ engineers/SMEs to ensure best-practice security implementation Provide expert input on mainframe security architecture and governance Ensure all remediation activities are completed within audit timelines (before September deadline) Produce clear documentation of security configurations, standards, and patterns Requirements Required Skills: ​ Advanced expertise in MQ on Mainframe (z/OS) Strong hands-on experience with Broadcom Top Secret Deep understanding of mainframe security architecture and access control models Experience applying DevOps practices within mainframe environments Solid knowledge of: CICS security Batch job security controls User authentication and authorization frameworks Third-party tool security integration Experience with audit remediation and compliance requirements Ability to define and implement scalable security patterns and standards Qualifications & Experience: Minimum 10 years’ experience in mainframe environments Proven track record in mainframe security and MQ environments Experience working in financial services or highly regulated industries (preferred) Demonstrated involvement in security audits and remediation initiatives Relevant certifications in mainframe technologies or security (advantageous)