Mainframe Application Support (z/OS)

Sorry, this job was removed at 04:13 p.m. (CST) on Tuesday, Jul 08, 2025
Easy Apply
Hiring Remotely in United States
Remote or Hybrid
Cloud • Information Technology
Support mission critical workloads, modernize IT infrastructure and reduce total cost of ownership.
The Role

Mainframe Application Support (z/OS)

At Ensono, our Purpose is to be a relentless ally, disrupting the status quo and unleashing our clients to Do Great Things! We enable our clients to achieve key business outcomes that reshape how our world runs. As an expert technology adviser and managed service provider with cross-platform certifications, Ensono empowers our clients to keep up with continuous change and embrace innovation.

We can Do Great Things because we have great Associates. The Ensono Core Values unify our diverse talents and are woven into how we do business. These five traits are the key to achieving our purpose.

HONESTY • RELIABILITY • COLLABORATION • CURIOSITY • PASSION

Position Summary

As a Mainframe Application Support specializing in applications, you will play a critical role in managing and optimizing IT services and infrastructure. Your responsibilities will include incident management, service change management, and IT service management, ensuring the smooth operation of IT services and systems. You will also be involved in problem management, database technology administration, and SAP system management across various platforms.

Key Areas of Focus for this Role

IT Incident Management:

    • Investigate, troubleshoot, and prevent the recurrence of IT incidents.
    • Describe common incidents and countermeasures, and follow proper notification and escalation procedures.
    • Utilize event management systems for logging and tracking incidents.
    • Provide detailed descriptions of 1st line resolution procedures and incident action plans.

IT Service Change Management:

    • Implement routine changes in a live IT service environment.
    • Generate schedules and time estimates for IT service changes.
    • Document procedures and changes made in IT services.
    • Provide status reports for implemented IT service changes to senior management.

IT Service Management (ITSM):

    • Conduct framework setup processes and training activities for IT outsourcing services.
    • Assist in examining systems and networks to ensure smooth IT service operations.
    • Generate reports for potential technical and administrative risks and propose changes in IT services.

Problem Management:

    • Perform major problem management activities to improve IT service quality.
    • Monitor specific problems and develop solutions to resolve them in a timely manner.
    • Track and resolve common service-related problems.

Control-M for zOS Application Management:

    • Demonstrate knowledge of Control-M for zOS and associated services.
    • Explain basic configuration requirements and operational considerations.
    • Perform Control-M for zOS product installation, upgrade, configuration, integration.
    • Apply appropriate tools and methodologies necessary to ensure vendor support.
    • Remain current with vendor documentation and technical support relations.

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 operating within a mainframe environment within a large enterprise or equivalent combination of education and experience
  • College degree preferred
  • Working knowledge of IT incident management, service change management, and IT service management.
  • Experience with Control-M (zOS and distributed) application administration.
  • Strong problem-solving skills and the ability to work independently and collaboratively.
  • Proficient in Microsoft suite (Excel, Word, PowerPoint) to a level of creating documents which can be shared with clients.  
  • Strong collaboration and teamwork skills
  • Understand a large-scale 24×7 production environment
  • Strong problem solving and analytical skills with knowledge of problem analysis
  • Must be self-motivated and able to manage multiple projects simultaneously.
  • Strong communication skills to liaise with cross-functional teams as well as provide guidance to junior team members

Why Ensono?

Ensono is a place to make better happen – for our clients and for your career. You can do great things through innovation or collaboration, by learning or volunteering, or to promote diversity and inclusion. You can do great things for your own health or for a healthier planet. Whatever it means to you to do great things we want Ensono to be the place you can do it. 

We are a client-facing business, but we do encourage clients to allow us to work remotely most of the time so if you are not required to be on a client site, you can choose to work from home or in our Ensono offices.

Some of our benefits include:

  • Unlimited Paid Days Off
  • Three health plan options through Blue Cross Blue Shield
  • 401k with company match
  • Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts
  • Paid Maternity Leave, Paternity Leave, and Sabbatical Leave
  • Education Reimbursement, Student Loan Assistance or 529 College Funding
  • Enhanced fertility coverage
  • Wellness program
  • Flexible work schedule
  • Depending on location, ability to take advantage of fitness centers

As of the date of this posting, a good faith estimate of the current pay scale for this role is $70,000 to $80,000 annually based on a full-time schedule. Please note that placement in the range may vary based on numerous factors including but not limited to skills, experience, internal equity, and business needs. In addition to base salary, other compensation programs, depending on eligibility, include an annual bonus plan based on company and individual performance, and an equity grant under our Associate Equity Appreciation 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].

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The Company
HQ: Downers Grove, IL
3,000 Employees
Year Founded: 2015

What We Do

Ensono helps IT leaders be the catalyst for change by harnessing the power of hybrid IT to transform their businesses. Our broad services portfolio from mainframe to cloud, powered by an intelligent governance platform, is designed to help our clients operate for today and optimize for tomorrow. We are award-winning certified experts in AWS & Azure

Why Work With Us

Our culture is collaborative & results-driven. Curiosity, passion, honesty & reliability are values we live by. Career & professional development is encouraged through promotions, learning opportunities, Ensono University - eTalks, training academies, paid tuition and study leave, quarterly Innovator Awards. Thinking Thursdays (no meetings 8 to 12)

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