Senior z/OS System Programmer - Hybrid, Growth & Mainframe Impact

JN Data A/S; Denmark; Hybrid; DKK 700,000 - 1,000,000; Full time

Benefits offered by this job

Pension scheme

6 weeks vacation

Care days

Increased holiday allowance

Group life insurance

Health insurance

Dental insurance

Full salary during parental leave

Job summary

JN Data is seeking a System Programmer z/OS to influence how our mainframe platform evolves. You will manage and support the z/OS environment, focusing on security and performance while collaborating across IT teams.

The role offers strong development opportunities, internal mainframe training through z/Academy, and a professional, supportive work environment with flexible hours and potential to work from home.

Qualifications

• Solid experience with z/OS, Sysplex, TSO, ISPF, SMP/E, Catalogs (including multi-level alias usage), GRS, z/OSMF and JES2.
• Proven ability to troubleshoot complex system issues and provide timely solutions.
• Knowledge of z/OS high-level security policies and best practices.
• Ability to understand organisational impact of technical decisions.
• A curious and proactive approach towards optimisation and problem resolution.
• Communication skills in Danish and English, as daily collaboration takes place in both languages (Danish is the corporate language).

Responsibilities

• Manage and support the z/OS environment, including TSO, ISPF, SMP/E, GDPS, MFA, JES2 and SYSPLEX, and assess the impact of configuration changes with particular focus on security and segregation of duties (SoD)
• Ensure the continuous optimisation of system designs, taking into account system complexity, security, company standards and performance
• Take ownership of system issues and proactively address them to minimise downtime
• Follow the company strategy for the mainframe, guidelines and directives, executing necessary tasks with attention to detail and efficiency
• Collaborate with other IT teams to resolve system issues, recommend improvements and support project initiatives
• Act as a resource for team members and provide expertise on best practice for z/OS system configurations
• Ensure that all system documentation is accurate and up to date

Skills

z/OS

Sysplex

TSO

ISPF

SMP/E

Catalogs

GRS

z/OSMF

JES2

Tools

GDPS

Job description

JN Data is seeking a System Programmer z/OS to influence how our mainframe platform evolves. You will manage and support the z/OS environment, focusing on security and performance while collaborating across IT teams.

The role offers strong development opportunities, internal mainframe training through z/Academy, and a professional, supportive work environment with flexible hours and potential to work from home.