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In this role you will be joining a team of technical professionals supporting a large-scale z/OS systems platform. This position requires an experienced systems programmer supporting the z/OS Mainframe Network environment. Responsibilities include configuring and maintaining the integrity and data/IP security of the Mainframe's host communication subsystems and associated program products.
Being part of a multi-functional team, supporting IBM mainframe networks and transmissions products and infrastructure.
Participation in support rota providing 24x7 cover.
Manage OSA Adapters in a complex mainframe environment
Implement AT-TLS rules (digital certificate management). Trace, Debug and Error Analysis
Communicate regularly with technical,



applications and operational staff to ensure Network connectivity and security (may involve some after hours and weekend work)
Understanding of z/OS networking services, structure and related software and protocols.
Understanding of network security disciplines (IPSec, TLS/SSL, certificates, etc) and how they relate to file transmission.
Ability to customize and manage secure SNA and TCP/IP networks under z/OS.
Knowledge of mainframe network management tools, e.g. Experience of managing mainframe printing products.
General z/OS systems programming experience.
Knowledge of System z hardware including the OSA-Express network cards.
Familiarity with the Cisco Network Solutions
Business awareness and understanding of business requirements of IT
An understanding of information legislation, such as the Data Protection Act.
Experience of working as a z/OS Systems Specialist in the IT industry.
About NTT

📌 Network Innovation Developer (Madrid)
🏢 Nttlimited
📍 Madrid