CareerPlanSign in

IBMz Network Engineer

Madrid, Spain💼 Full-time🗓 2026-09-09 → 2026-09-26

Core

Supporting a large-scale z/OS systems platform by configuring and maintaining the integrity and data/IP security of Mainframe host communication subsystems.

Role type

Senior z/OS Mainframe Network Engineer

Builds

Secure mainframe network infrastructure and file transmission services

Domain

Mainframe computing (z/OS) and Mainframe Networking

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

z/OS systems programming, VTAM configuration, TCPIP Port Reserves, OSA Adapter management, AT-TLS rules implementation, IPSEC policy configuration, Connect:Direct/FTP administration, NetMaster usage, SNA network management, System z hardware knowledge

Preferred skills

Cisco Network Solutions familiarity, Change Management process expertise, problem management from diagnosis to resolution

Technologies

z/OS, VTAM, TCPIP, OSA-Express, Connect:Direct, FTP, NetMaster, TUBES, Supersession, AT-TLS, IPSEC, SNA

Responsibilities

Configure and maintain Mainframe host communication subsystems and associated program products; Perform TCPIP Port Reserves and VTAM updates; Manage OSA Adapters in a complex mainframe environment; Implement AT-TLS rules and configure/manage IPSEC policies; Trace, debug, and perform error analysis; Support 24x7 cover on a support rota.

Seniority

Senior, hands-on IC

Sourced via workday · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.