Senior zOS Systems Programmer

Ensono Senior zOS Systems Programmer Chicago, Illinois Apply Now

Position Summary

The Mainframe Systems Programmer provides support for ongoing projects that require the installation, testing, and implementation of new operating systems and other ‘system’ software. Responsibilities include maintenance and debugging of systems software, research and evaluation of new software and hardware products, assisting team members with technical questions, and problem resolution. Additional tasks involve monitoring and tuning of systems software, with a functional knowledge of z/OS components and detailed knowledge of support products such as tape management, scheduling, security, and monitoring systems.

Key Areas of Focus for this Role

1. Low complexity assignments - provide oversight/review.
2. Understand how the whole picture aligns to overall Ensono strategy.
3. Work directly with hardware and software vendors on new solutions.
4. Review and analyze current client software and requirements to determine the most cost-effective and standard software solution to be included in the business proposal.
5. Provide and document problem analysis, resolution, and prevention, designing procedures and best practice techniques.

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

1. Incident, change, and problem handling.
2. Configuration and customization.
3. Setup of parameters.
4. Communication with vendors.
5. Participation/contribution to technical projects.
6. In-depth knowledge and understanding of z/OS and related product software.
7. PARMLIB configuration and JES2 customization.
8. Ability to support in solving problems and implementing changes on z/OS environments.
9. Advanced knowledge of TSO/ISPF, SDSF, JCL.
10. Excellent written and verbal skills.
11. Ability to take the lead in problem-solving and coordination of multi-disciplinary groups.
12. 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

1. Minimum of 10+ years of experience managing a team within a mainframe environment within a large enterprise or equivalent combination of education and experience.
2. Knowledge and understanding of z/OS.
3. Advanced knowledge of TSO/ISPF, SDSF, JCL.
4. Advanced knowledge of Unix System Services (USS).
5. Advanced knowledge of Unix System Services (USS) file system management and security.
6. Experience installing software within Unix System Services (USS).
7. Ability to work well as a team member.
8. Stress-resistant in case of Major Incident and/or emergency situations.
9. Very good communication abilities.
10. Ability to deal with multi-task issues.
11. Methodical and disciplined approach to work.
12. Excellent analytical skills and problem-solving capabilities.
13. Good planning and organizational skills.
14. Initiative and good learning abilities.

Additional Considerations

1. Knowledgeable in DB2, CICS, or IMS.
2. Understand z/OS services structure, Parallel sysplex, Catalog management.
3. Experience with Dynamic Workload Console.

Ensono is a place we unleash Associates to Do Great Things – for our clients and for your career. This could mean achieving a professional goal, collaborating with your team on an innovative idea, learning a new skill, reaching a wellness milestone, or engaging in your community through volunteer programs. Whatever it means to you, we want Ensono to be the place where you can do great things.

We value flexibility and work-life balance. Positions that are not required to be onsite to support a client may offer the ability to work remotely or hybrid at an Ensono office location.

Unlimited Paid Day Off (PDO) Plan

Two robust health plan options through Blue Cross Blue Shield

401(k) with a generous company match

Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts

Depending on location, ability to take advantage of fitness centers

Wellness program

Ensono is an Equal Opportunity/Affirmative Action employer. We are committed to providing equal employment to our Associates and building a diverse and inclusive workforce. All qualified applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or other legally protected basis, in accordance with applicable law.

Pay transparency nondiscrimination statement/posting OFCCP’s pay transparency policy can be found on OFCCP’s website (

If you need accommodation at any point during the application or interview process, please let your recruiter know or email (email protected).