> Markdown version of [/jobs/ext/1475166-ibmz-network-engineer](https://www.wearedevelopers.com/jobs/ext/1475166-ibmz-network-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # IBMz Network Engineer - **Company:** NTT DATA - **Location:** Sheffield, UK - **Contract:** Permanent contract - **Skills:** Computer Networks, System Configuration, Software Debugging, Network Interface Controllers, IBM Mainframe, IBM System Z, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Mainframes, Network Connections, Network Service, Network Management System, Session Manager SubSystems, System Programming, TCP/IP, Transmission Control Protocol (TCP), Z/OS, Transport Layer Security, File Transfer Protocol (FTP), Cisco - **Published:** July 29, 2026 - **Apply:** https://careers-inc.nttdata.com/talentcommunity/apply/1411808900/?locale=en_US ## About the Role * 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. ## 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., * 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) ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [UK Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/326-uk-business-culture-and-etiquette) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023)