IBMz Network Engineer

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.
• 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)

• 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.

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.

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.