Job Title: Senior Python Engineer (Mainframe & z/OS)

Location: Remote

The Opportunity

We are looking for a Senior Python Engineer who is an expert in the Mainframe (z/OS) ecosystem. You will bridge the gap between legacy mainframe systems and modern Python automation. This is a pure development role focused on building tools, services, and data pipelines that run directly on the mainframe or orchestrate mainframe jobs.

Must-Have Requirements (Non-Negotiable)

To be considered, the candidate must meet ALL of the following:

1. Python Expert (10+ Years): Proven track record of building production systems (CLIs, services, or batch processes) using Python 3.x.
2. Mainframe Dev (Hands-on): Experience coding and running Python scripts natively on z/OS Unix System Services (USS) . Must be comfortable with TSO/ISPF, SDSF, and mainframe datasets.
3. DB2 for z/OS: Strong SQL tuning skills on DB2, including writing stored procedures, designing indexes, and using EXPLAIN and RUNSTATS.
4. JCL Mastery: Deep understanding of JCL (PROCs, condition codes, GDGs) and experience connecting JCL to enterprise schedulers (e.g., Control-M, CA-7).

Key Technical Stack

Candidates should be familiar with these tools:

• Mainframe: z/OS 2.x, USS, TSO, SDSF, RACF.
• Database: DB2 12/13 for z/OS (SPUFI, DSNTEP2).
• Python Tools: ibm_db, pandas, PyArrow, requests.
• Automation: Zowe CLI, z/OSMF REST APIs, Jenkins/GitLab CI.