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Ensono

Mainframe Systems Programmer - ISV

Ensono · Remote - United States

Posted 13 days ago · $85,000 to $148,000

or apply directly on Ensono's site. We never take the application ourselves.

Is this posting real?

This role has been open
13 days
Ensono's roles stay open a median of 36 days
Reposted
No
Salary listed
Yes
32% of Ensono's roles list one
Ghost-job risk at Ensono
high
26 stale, 1 reposted of 69 open
Hiring momentum
123 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Ensono's own greenhouse board since 2026-08-03. Full hiring picture for Ensono.

About this role

As a Mainframe Systems Programmer, you will support ongoing projects involving the installation, upgrade, testing, configuration, and implementation of ISV software. Your role includes monitoring software performance, providing on-call support, and assisting with technical inquiries. You will work with z/OS components and related systems, focusing on incident resolution, configuration, and vendor communication.

Our read on this posting4.2out of 5
benefits
5/5
freshness
4/5
career value
3/5
role clarity
4/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Ensono as an employer.

What you need

  • Minimum of 5+ 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
  • Strong knowledge of TSO/ISPF, SDSF, JCL
  • Strong knowledge of Unix System Services (USS)
  • Ability to perform moderately complex ISV installations

Nice to have

  • Knowledgeable in z/OS security
  • Knowledgeable in z/OS systems programming functions
  • Understand z/OS services structure, Parallel Sysplex, Catalog management

What you get

  • 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

Worth weighing

  • No specific mention of the technologies or tools beyond z/OS and its components, which may indicate a focus on legacy systems
  • The role is not application programming, which may limit exposure to newer development practices or technologies

Summarised from Ensono's posting. Read the full original.

Listed by Ensono on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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