Mainframe Core Tech Specialist
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 15, 2026. HSBC scores A on the Alion truth index.
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Your career opportunity
In this role you will be joining a team of technical professionals supporting a large-scale z/OS systems platform. You will configure and maintain the integrity and data and IP security of the mainframe host communications subsystems and associated program products. The role sits within a multi-functional team supporting IBM mainframe networks and transmissions products and includes participation in a 24x7 support rota.
What you’ll do
- Support IBM mainframe networks and transmissions products and infrastructure as part of a multi-functional team.
- Participate in a support rota providing 24x7 cover.
- Perform TCPIP port reserves additions deletions and changes and complete VTAM updates additions deletions and changes.
- Manage OSA adapters in a complex mainframe environment including OSA-Express network cards.
- Perform VTAM PU and LU updates additions deletions and changes including Enterprise Extenders EE.
- Implement AT-TLS rules including digital certificate management and configure IPSEC policies such as permit and deny rules and VPN ipsec tunnels.
- Carry out trace debug and error analysis and manage problems from initial diagnosis through to resolution
- Communicate with technical applications and operational teams to ensure network connectivity and security including some after hours and weekend work.
What you need to have to succeed in this role
- Demonstrable experience supporting the z/OS mainframe network environment and general z/OS systems programming.
- Knowledge of z/OS and z/OS utilities.
- Understanding of z/OS networking services structure related software and protocols.
- Experience administering file transmission products such as Connect:Direct and FTP or strong experience as a user of these products.
- Understanding of network security disciplines including IPSec TLS and SSL and certificates and how they relate to file transmission.
- Experience in problem management from initial diagnosis through to resolution.
- Understanding of the Change Management process.
- Knowledge of mainframe network management tools such as NetMaster and multi-session manager products such as TUBES and Supersession.
What we offer
The pay range for this role is 16 658 PLN - 24 983 PLN (monthly, gross).
Variable pay is discretionary, but influenced by Group performance, business/function performance and individual performance.
We offer a comprehensive and competitive package of benefits covering healthcare, family friendly leaves, pension and life assurance, as well as many other benefits to support your wellbeing.
- Additional bonuses for recognition awards
- Multisport card
- Private medical care
- Life insurance
- One-time reimbursement of home office set-up (up to 800 PLN).
- Cafeteria platform
- Employee assistance program
- Additional contributions to PPK scheme
- Corporate parties & events
- CSR initiatives
- Nursery discounts
- Financial support with trainings and education
- Social fund
- Flexible working hours
- Free parking
If your CV meets our criteria, you should expect the following steps in the recruitment process:
- Online behavioural test (for external candidates only)
- Telephone screen (for external candidates only)
- Interview with the hiring manager
Being open to different points of view is important for our business and the communities we serve. At HSBC, we’re dedicated to creating diverse and inclusive workplaces. We are committed to removing barriers and ensuring careers at HSBC are inclusive and accessible for everyone to be at their best.
If you have a need that requires accommodations or changes during the recruitment process, please let us know.
We are looking to hire as soon as possible so don’t wait and apply now!
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