Mainframe Systems Programmer - CICS & WAS

Posted Yesterday
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Hiring Remotely in United States
Remote or Hybrid
65K-123K Annually
Senior level
Cloud • Information Technology
Support mission critical workloads, modernize IT infrastructure and reduce total cost of ownership.
The Role
Provides 24/7 client support for IBM z/OS mainframe environments, specializing in CICS TS, WebSphere Application Server, and related OEM products. Responsibilities include software installation, maintenance, upgrades, troubleshooting, performance monitoring, tuning, migrations, disaster recovery support, hardware coordination, and operating system upgrade preparation. The role also supports customer projects, implements product fixes, follows ITSM change controls, and provides technical guidance across teams.
Summary Generated by Built In

Position Summary

Provide premium software support and services to Ensono mainframe clients as they relate to CICS and WAS. The Mainframe Systems Programmer provides support for on-going projects that require the installation, testing, and implementation of new operating systems and other 'system' software. Also, the Maintenance and debugging of systems software. Coordination and the IOGEN work for new MF hardware. Research and evaluation of new software and hardware products, assisting team members and other areas with technical questions and problem resolution. 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, etc.

Key Areas of Focus for this Role
  • Fulfill customer service orders (CSOs) for mainframe z/OS customers in a timely manner as they pertain to CICS TS and related OEM software products.
  • Provide primary support for reported problems related to CICS TS / WAS and related OEM software products.
  • Provide support on 24 x 7 x 365 basis and in multiple time zones.
  • Follow procedures for installing OEM software products efficiently and according to best practices and Ensono standards (for productivity/scalability purposes).
  • Work with members of other functional towers in preparing customer partitions for regular (approximately once per year) operating system upgrade process via a checklist of proactive actions.
  • Provide key support for customer migration services (new customer transitions) as they pertain to CICS TS and related OEM software products.
  • Assist the assigned project manager in the migration of newly acquired customers such that all technical hurdles are addressed in a timely manner and do not impede the expected progress of the transition nor the targeted migration date.
  • In joint cooperation with the Disaster Recovery Services, successfully execute tasks associated with any given customer’s disaster recovery plans.
  • Adhere to a schedule that efficiently manages resources and allows timely implementations.
  • Follow ITSM change control procedures g:
    • Implementing vendor product specific corrections (“fixes”) and
    • Upgrading, maintaining, enhancing or providing new options to applicable z/OS products within any given customer
    • undefined

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

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

5+ years experience on the zSeries (mainframe) platform including “hands on” technical experience (installation and maintenance of products) related to CICS TS / WAS and OEM product support.

Thorough working knowledge of the capabilities and use of CICS TS and installation and tailoring of CICS TS and as well as CICS TS related OEM products.

Thorough working knowledge and experience with the use of IBM’s SMP/E. 

Strong analytical skills and understanding of CICS TS concepts, configuration and tailoring.

Thorough working knowledge of products used to monitor performance of CICS TS regions.

Self-motivated and able to work independently. 

Must be able to multi-task and work under short deadlines and in high pressure situations.

Excellent communication skills (written, verbal and presentations)

Ability to work as part of a team, as well as independently.

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
    • 401k with company match
    • Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts
    • Family Forming Benefit including fertility coverage and adoption/surrogacy reimbursement
    • Paid childbearing and paternal leave
    • Education Reimbursement, Student Loan Assistance or 529 College Funding
    • Sabbatical leave
    • Wellness program
    • Flexible work schedule

As of the date of this posting, a good faith estimate of the current pay scale for this role is $65,000 to $123,000 salary, based on a fulltime 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].

Skills Required

  • Bachelor's degree or equivalent work experience
  • 5+ years of hands-on technical experience on the zSeries mainframe platform
  • Experience installing and maintaining CICS TS, WAS, and related OEM products
  • Thorough knowledge of CICS TS capabilities, installation, and tailoring
  • Thorough working knowledge and experience with IBM SMP/E
  • Strong analytical skills and understanding of CICS TS concepts, configuration, and tailoring
  • Experience with products used to monitor CICS TS region performance
  • Ability to work independently and manage multiple tasks under short deadlines and high-pressure conditions
  • Excellent written, verbal, and presentation communication skills
  • Ability to work effectively as part of a team and independently

Ensono Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Ensono and has not been reviewed or approved by Ensono.

  • Leave & Time Off Breadth — Time off provisions include unlimited PTO, paid volunteer time, and a formal sabbatical program. These offerings provide flexibility for rest, community service, and extended renewal.
  • Retirement Support — Retirement support includes a 401(k) with company match as part of the core package. This adds long‑term financial value alongside day‑one eligibility for other coverage.
  • Parental & Family Support — Family‑forming coverage and paid parental leave are explicitly included, with adoption and surrogacy reimbursement. These benefits support diverse paths to growing a family.

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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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