Jobs and Careers
EN

Senior Mainframe Systems Programmer - zOS

Ensono
Remote - United States, United StatesRemotefull_timeVerifiedPosted 22 Sept 2025
💰 $148,000/yr($80,000/yr$148,000/yr)

About the role

The Senior Mainframe Systems Programmer provides support for on-going projects that require the installation, testing, and implementation of new z/OS operating systems and other ‘system’ software. Also, the Maintenance and debugging of systems software. Monitoring and tuning of systems software. Functional knowledge, use of z/OS components and detailed knowledge of support products such as tape management, scheduling, security, monitoring systems, and other z/OS supporting systems software. Note: This is not an Applications Programming position. 

Key Areas of Focus for this Role  

  • Participate in On-call Schedule. 

  • Incident / Problem resolution 

z/OS & Tools your main tasks are related to:  

  • Incident, change and problem handling.  

  • Configuration and customization.  

  • Setup of parameters.  

  • Communication with vendors.  

  • Participation/contribution to technical projects.  

  • Solid understanding of z/OS and related product software z/OS.  

  • PARMLIB configuration and JES2 customization. 

  • Ability to support in solving problems and implementing changes on z/OS environments. 

  • Working knowledge of TSO/ISPF, SDSF, JCL. 

  • Good written and verbal skills. 

  • Strong analytical and problem-solving skills. 

What the Ideal Candidate Brings to this Role 

Required Qualifications help to assure new Associates are set up for success in their role with Ensono. To be considered for this career opportunity, it is important that you meet all Required Qualifications. Candidates that may meet some, but not all, Other Qualifications are still encouraged to apply. 

Required Qualifications 

  • Minimum of 10+ years of experience within a mainframe environment within a large enterprise or equivalent combination of education and experience  

  • Bachelor’s degree required and/or equivalent work experience 

  • Knowledge and understanding of z/OS and z/OS installation and maintenance including SMP/E. 

  • Working knowledge of TSO/ISPF, SDSF, JCL. 

  • Working knowledge of Unix System Services (USS) 

  • Working knowledge of Unix System Services (USS) file system management and security 

  • Ability to work well as a team member.  

  • Stress resistant in case of Major Incident- and/or emergency situations.  

  • Good interpersonal, verbal and written communication skills 

  • Customer Service skills at management level 

  • Good collaboration and teamwork skills 

  • Must be self-motivated.  

  • Strong analytical skills and problem-solving capabilities.  

  • Good planning and organizational skills.  

  • Initiative and good learning abilities.  

Other Qualifications 

  • Ability to perform skill set of a Mainframe System Programmer  

  • Ability to perform moderately complex ISV installations  

  • Knowledgeable in z/OS security. 

  • Knowledgeable in z/OS systems programming functions. 

  • Understand z/OS services structure, Parallel Sysplex, Catalog mana

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

Ensono

View company profile →