Mainframe Network Engineer (z/OS) – Security & TCP/IP

nttlimited; Madrid; Presencial; EUR 60.000 - 90.000; Jornada completa

Descripción de la vacante

NTT DATA in Madrid is seeking an experienced z/OS Systems Programmer to support a large-scale mainframe network. You will configure and maintain host subsystems and ensure data/IP security in a complex z/OS environment.

Ideal candidates will have z/OS networking, VTAM updates, and security policy experience, plus a track record in problem management and rapid incident resolution within a 24x7 support model.

Formación

• Experience in administering file transmissions like Connect:Direct or FTP.
• Knowledge of z/OS networking, services and utilities.
• Understanding network security (IPSec, TLS/SSL, certificates).
• Proven problem management from diagnosis to resolution.
• Familiar with Change Management processes.
• Ability to manage secure SNA/TCP/IP under z/OS.
• Experience with mainframe network tools (NetMaster) and multi-session managers (TUBES).
• Experience with mainframe printing products and general z/OS systems programming.

Responsabilidades

• Support IBM mainframe networks and transmission products.
• Participate in 24x7 support rota.
• Manage VTAM updates and TCPIP port reserves.
• Handle OSA adapters and enterprise extenders.
• Implement AT-TLS rules and IPSEC policies.
• Trace, debug and analyze errors; communicate with stakeholders.
• Ensure connectivity and security across the mainframe network.

Conocimientos

z/OS systems

Mainframe networking

IPSec TLS

VTAM administration

TCP/IP management

problem troubleshooting

communication skills

Educación

Bachelor's in CS/IS

Herramientas

NetMaster

TUBES

Supersession

Connect:Direct

FTP

Descripción del empleo

NTT DATA in Madrid is seeking an experienced z/OS Systems Programmer to support a large-scale mainframe network. You will configure and maintain host subsystems and ensure data/IP security in a complex z/OS environment.

Ideal candidates will have z/OS networking, VTAM updates, and security policy experience, plus a track record in problem management and rapid incident resolution within a 24x7 support model.