Learner - Cybersecurity
nttlimited
IBMz Network Engineer
nttlimited· NTT Ltd Group Services United Kingdom Limited
About this role
Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.
Your day at NTT DATA
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.
Workplace type:
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 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as
established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each
year in R&D.
Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.
Third parties fraudulently posing as NTT DATA recruiters
NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.
Frequently Asked Questions
Is the salary disclosed for the IBMz Network Engineer position at nttlimited?
The salary for this IBMz Network Engineer role at nttlimited is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the IBMz Network Engineer position at nttlimited located?
This IBMz Network Engineer role at nttlimited is based in Barcelona, Spain, Bucharest, Romania, Ireland, United Kingdom, Madrid, Spain. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the IBMz Network Engineer role at nttlimited full-time or part-time?
This is listed as a Full time position. It is posted as a IBMz Network Engineer role in the NTT Ltd Group Services United Kingdom Limited department at nttlimited.
Which team or department does the IBMz Network Engineer at nttlimited belong to?
This IBMz Network Engineer position is part of the NTT Ltd Group Services United Kingdom Limited department at nttlimited. See the full job description for more information about the team structure and responsibilities.
How do I apply for the IBMz Network Engineer position at nttlimited?
Click the "Apply Now" button on this page. You will be redirected to nttlimited's official application portal hosted on workday where you can submit your application directly.
When was the IBMz Network Engineer job at nttlimited posted?
This IBMz Network Engineer position at nttlimited was posted on Sep 9, 2026. Apply as soon as possible — early applications are often reviewed first.
IBMz Network Engineer
nttlimited
You'll be redirected to nttlimited's official application page on Workday.