Security Engineer – Mainframe

Location UK / Belfast

Job Type Permanent full-time, TemporaryContract

Salary Not disclosed

Updated 3 weeks ago

Reference 1356129

 Job Description

MCS Group is working exclusively with NI's biggest technology employer in their search for a Security Engineer with Mainframe platform experience.

MCS Group is working exclusively with NI’s biggest and fastest-growing technology company in their search for a Security Engineer with Mainframe experience. The firm have grown from strength-to-strength in recent years and boast NI’s largest cyber security division – tasked with protecting one of the world’s largest enterprises from attacks and vulnerability. This security engineer will sit within an exclusive team accountable for the management and stewardship of the mainframe security environment.

Duties include providing engineering support for databases, installing and maintaining security products, troubleshooting and resolving security issues and assisting in developing technical solutions to business problems based upon security best practices.

Responsibilities include (but aren’t limited to):

  • The Security Engineer will perform the daily functions of RACF Infrastructure administration for multiple databases
  • Installation and maintenance of ISV security products
  • Assist the security administration teams with provisioning
  • Provide security support for batch workload
  • Interact and consult with technology teams including systems programmers, DBAs, CICS/MQ support, mainframe network team, etc.
  • Collaborate with business and technology partners to develop best practice security solutions
  • Participate in the evaluation and implementation of new security technologies and products
  • Troubleshoot and resolve user access issues
  • Participate in a rotation for on-call support and support of monthly IPL process

Essential Criteria

  • Commercial experience administering RACF
  • Commercial experience working in a z/OS environment
  • Experience with Vanguard tools preferred (or similar)
  • Experience with cryptography and digital certificate management
  • Experience working with identity management tools
  • Experience implementing or supporting multi-factor authentication in a z/OS environment
  • Extensive experience with MVS tools and utilities – SDSF, ISPF, JES2, TSO, DFSORT
  • Bachelor’s degree or equivalent work experience.
  • Must be an EU citizen or possess a current UK Tier 1 Visa or Tier 2 visa and eligible to take up full time, permanent employment


  • Negotiable depending upon experience with a leading benefits package including bonus, pension, healthcare and flexible working.

To speak in absolute confidence about this opportunity please contact Chris Busby, Senior IT Consultant at MCS Group on 028 9023 5456 or send an up to date CV via the link provided.

If this position is not right for you, we may have others that are. Please visit to view a wide selection of our current jobs or call us on 028 9023 5456.

All conversations will be treated in the strictest of confidence.