Senior z/OS Platform Engineer
McMaster-Carr · Chicago, IL (Elmhurst)
Posted about 3 months ago · $235,000 to $310,000
or apply directly on McMaster-Carr's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 87 days McMaster-Carr's roles stay open a median of 87 days
- Reposted
- No
- Salary listed
- Yes 95% of McMaster-Carr's roles list one
- Ghost-job risk at McMaster-Carr
- high 37 stale, 2 reposted of 37 open
- Hiring momentum
- 43 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-29
Measured from postings appearing on and disappearing from McMaster-Carr's own greenhouse board since 2026-08-03. Full hiring picture for McMaster-Carr.
About this role
As a Senior z/OS Platform Engineer at McMaster-Carr, you will focus on enhancing the mainframe infrastructure that supports the company's e-commerce operations. Your responsibilities will include re-imagining the COBOL development lifecycle, upgrading DB2 and other platform components, and optimizing resource use in z operations. You will also write code to improve the efficiency and resiliency of mainframe systems while collaborating with your team to drive down costs and support company strategies.
- benefits
- 5/5
- freshness
- 1/5
- 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 McMaster-Carr as an employer.
What you need
- At least 3 years of experience with z/OS, CICS, Db2, JCL, SMP/E, SMS/ACS, Networking, z/OSMF, and Zowe.
- Strong problem-solving and technical design skills.
- Clear communication skills across technical and non-technical audiences.
- Interest in mentoring and coaching.
What you get
- 100% tuition reimbursement
- Informal and formal mentorship
- Employee resource groups
- Medical, dental, pharmacy, and vision plans with no monthly premiums
- Inclusive, all-gender benefits
- Paid time off for vacation and personal time
Worth weighing
- Base salary range is quite broad, indicating potential variability in compensation based on experience or negotiation.
- The role involves legacy technologies such as COBOL and mainframe systems, which may limit exposure to more modern tech stacks.
- The position is not eligible for work authorization sponsorship, which may affect international candidates.
Summarised from McMaster-Carr's posting. Read the full original.
Listed by McMaster-Carr on their greenhouse job board, last confirmed open on 2026-10-29. PitchMeAI is not the employer.
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