Make an impact with NTT DATA Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.

Your day at NTT DATA 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 DATA NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services.

Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 70 countries. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.;

NTT DATA is proud to be an Equal Opportunity Employer with a integral culture that embraces diversity. Join our growing global team and accelerate your career with us.

📌 Network Security Developer (Madrid)
🏢 Nttlimited
📍 Madrid