IBMz Network Engineer

NTT DATA North America; Sheffield; On-site; GBP 75,000 - 110,000; Full time

Benefits offered by this job

Comprehensive benefits

Job summary

NTT DATA is seeking a z/OS Systems Specialist to join a mainframe networking team. You will support a large-scale z/OS environment, ensuring network connectivity and security, including IPsec and TLS, with the possibility of some after-hours work.

You will participate in 24x7 support and collaborate across technical teams. Ideal candidates bring z/OS experience, knowledge of mainframe networking tools (NetMaster, Tubes, Supersession) and solid problem- solving skills, with readiness for tight

Qualifications

• Experience with z/OS and z/OS utilities.
• Understanding of z/OS networking services and related software.
• Knowledge of network security disciplines (IPSec, TLS/SSL, certificates).
• Experience in problem management from diagnosis to resolution.
• Understanding of Change Management processes.
• Ability to customize and manage secure SNA and TCP/IP networks under z/OS.
• Familiarity with mainframe network tools and multi-session managers.

Responsibilities

• Support IBM mainframe networks and transmissions products and infrastructure.
• Participate in 24x7 on-call support rotation.
• Perform TCPIP Port Reserves and VTAM updates.
• Manage OSA Adapters in a complex mainframe environment.
• Perform VTAM PU/LU updates including Enterprise Extenders.
• Implement AT-TLS rules and IPSEC policies.
• Trace, debug and perform error analysis.
• Communicate with technical, applications and operations staff regarding connectivity and security.

Skills

z/OS knowledge

Mainframe networking

TCP/IP

VTAM

IPSec/TLS

Network security

Problem management

Change management

Mainframe tools

Cisco networking

Communication skills

Teamwork

Adaptability

NetMaster / TUBES / Supersession

Tools

NetMaster

TUBES

Supersession

OSA-Express

Job description

Req ID: 382830

Competitive salary | UK: hybrid: remote + Sheffield or remotely UK-wide or across Europe At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees are key factors in our company’s growth, market presence and our ability to help our clients stay a step ahead of the competition. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.

Job Description

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.

Your responsibilities will include:

• Being 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)

The ideal candidate for this role will have the below experience and qualifications:

• Experience in administering file transmissions products such as Connect:Direct and FTP, or alternatively good experience as a user of these products.
• 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, etc) 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.

Work model

Hybrid (Sheffield/remote) or remotely UK-wide or within rest of Europe.

Benefits

Our people are the most critical component of our long-term success and their health and wellbeing are our priority. You will enjoy a comprehensive, locally competitive benefits package.

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. 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 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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