Mainframe Network Engineer: z/OS & Security

NTT DATA, Inc.

Madrid

Presencial

EUR 60.000 - 90.000

Jornada completa

Hace 4 días

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Descripción de la vacante

NTT DATA in Madrid is seeking a z/OS Systems Specialist to join a team supporting a large-scale mainframe network. You will configure and maintain security for the host subsystems and IP communications, and provide 24x7 support as part of a multi-functional team.

The role requires extensive experience with Connect:Direct/FTP, z/OS networking, and network security. Strong problem-solving and collaboration skills are essential to meet tight deadlines and complex environments.

Formación

Experience administering file transmissions products such as Connect:Direct or FTP.
Strong knowledge of z/OS and z/OS utilities.
Understanding of z/OS networking services, structure and related software and protocols.
Understanding of network security disciplines (IPSec, TLS/SSL, certificates) and how they relate to file transmission.
Experience of problem management from initial diagnosis through to resolution.
Understanding of the Change Management process.
Ability to customize and manage secure SNA and TCP/IP networks under z/OS.
Knowledge of mainframe network management tools, e.g. NetMaster, and multi-session manager products such as TUBES and Supersession.
Experience of managing mainframe printing products.
General z/OS systems programming experience.
Knowledge of System z hardware including the OSA-Express network cards.
Excellent problem-solving and analytical skills
Good communication, teamwork and negotiation skills
Familiarity with the Cisco Network Solutions
The ability to work to tight deadlines under pressure
Good organisational skills
Flexibility and adaptability
The ability to create and maintain strong working relationships with colleagues and customers
Business awareness and understanding of business requirements of IT
A willingness to keep up to date with developments in new technology
An understanding of information legislation, such as the Data Protection Act.
Experience of working as a z/OS Systems Specialist in the IT industry.

Responsabilidades

Be part of a multi-functional team, supporting IBM mainframe networks and transmissions products and infrastructure.
Participation in support rota providing 24x7 cover.
Perform TCPIP Port Reserves (Additions, Deletions, Changes) Perform VTAM updates (Additions, Deletions, Changes)
Manage OSA Adapters in a complex mainframe environment
Perform VTAM PU/LU updates (Additions, Deletions, Changes) including Enterprise Extenders (EE)
Implement AT-TLS rules (digital certificate management). Configure and manage IPSEC policies (permit/deny rules, VPN- ipsec tunnels)
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)