Operational Security Engineer

🚀 We’re Hiring: Operational Security Engineer – Mainframe / RACF (Hybrid)

📍 Location: Brussels, Belgium

🏠 Work Model: 50% onsite / 50% remote

💼 Experience: 10+ years

Are you an experienced Mainframe Security professional with deep expertise in RACF and IBM z/OS environments? Are you passionate about strengthening cybersecurity, ensuring compliance and protecting critical IT infrastructure?

We are looking for an Operational Security Engineer to join an IT Security Production team, focusing on Mainframe System Security within a challenging banking environment.

🔐 Key Responsibilities:

• Manage user permissions and access rights outside IAM.
• Administer and maintain RACF databases, manually or through automation.
• Define, maintain and document Mainframe security standards and procedures.
• Handle encryption activities, certificates and Hardware Security Module (HSM) configurations.
• Assess the security of new Mainframe products before production deployment.
• Investigate and resolve security incidents with minimal operational disruption.
• Support IT Risk, Asset Owners and auditors by providing compliance evidence and addressing audit findings.
• Identify potential security risks proactively and implement appropriate mitigation measures.

🛠️ Mandatory Technical Skills:

• Strong hands-on experience with RACF and related utilities.
• In-depth knowledge of Mainframe architecture and IBM z/OS.
• JCL, ISPF, REXX and SDSF.
• Role-Based Security Modelling.
• AT-TLS, certificates and Public Key Infrastructure (PKI).
• Security of DB2, IMS and MQ.
• Job scheduling and Mainframe subsystems security.
• Mainframe cryptographic cards and HSM.
• Unix System Services (USS).

⭐ Nice-to-Have Skills:

• zSecure product suite / zSecure RACF.
• Control-M or other job scheduling tools.
• COBOL.
• Endevor.

🎓 Requirements:

• Bachelor's degree.
• Minimum 10 years of relevant professional experience.
• Mandatory certification: RACF Security Administrator.
• zSecure RACF certification is an advantage.
• Professional proficiency in English is mandatory.
• Dutch and French are plus.

👤 Ideal Candidate Profile:

We are looking for someone with excellent analytical and problem-solving skills, critical thinking, creativity and a proactive mindset. You should be comfortable navigating complex security requirements, investigating technical issues and collaborating with multiple stakeholders in a demanding IT environment.

📩 Interested or know someone who could be a great fit? Apply now!!

Feel free to contact me or share your updated CV.

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