System Programmer z/OS

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

Do you have solid experience in z/OS system programming? Would you like to influence technical direction in a company that actively invests in its mainframe platform? Then this position may be the right opportunity for you.

At JN Data, the mainframe is at the core of our business. We are investing heavily in the platform and are entering one of the most significant periods of activity in our mainframe area.

The role

As a System Programmer z/OS, you will have the opportunity to influence how our mainframe platform evolves in the years to come. The role requires both deep technical expertise and the ability to assess the broader consequences of changes across systems and the organisation. Your tasks will include:

• 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

The team

You will join a team of highly skilled specialists responsible for operating and evolving one of Denmark’s most critical z/OS environments. You will have strong opportunities for professional development, including relevant training, certifications and participation in specialist conferences.

We are also strengthening the mainframe area through our internal z/Academy - a training programme that develops new mainframe specialists through formal learning and hands-on experience. As an experienced profile, you will have the opportunity share your expertise and support the development of less experienced colleagues.

What we’re looking for

• 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)

You may also have experience with:

• Disaster recovery planning and execution within GDPS

We offer

As an employee at JN Data, you are guaranteed excellent employment terms. We offer, among other things, a solid pension scheme, a 6th week of vacation, 5 care days, increased holiday allowance, group life insurance, health insurance, dental insurance, and full salary during parental leave.

You will become part of a professional yet informal work environment with a strong focus on employee well-being and development. We offer flexible working hours and the possibility to work from home.