Senior Mainframe Systems Programmer

Alithya•États-Unis,

1d•Onsite

About The Position

As a Senior Mainframe Systems Programmer, you’ll work on low-level systems tooling in an IBM z/OS test environment. The work is Assembler-centric and sits below the application layer (module-level changes, subsystem exits, and the diagnostics around them), working alongside the infrastructure, application and security teams. If you’re comfortable with vendor-supplied modules, module maps and dumps, then this role is for you.

Requirements

8+ years of hands-on z/OS experience, with significant time spent below the application layer
Strong HLASM skills (not substitutable by COBOL or PL/I experience)
Binder and linkage-editor fluency
Working knowledge of Language Environment internals, VSAM/QSAM control blocks, and the z/OS authorization model (APF, authorized concatenations)
Comfort with JCL and REXX
Dump and abend analysis (IPCS, SLIP, GTF or component trace)

Nice To Haves

Db2 language interface internals
CICS global user exits and thread safety
IMS DL/I or MQ internals
SMP/E
Experience with z/OS trace or diagnostic tooling
IBM Z certifications

Responsibilities

Write and maintain HLASM code that runs as part of the runtime and subsystem environment
Build and package modules and analyze load modules
Work with access methods (VSAM, QSAM) and Language Environment at the control-block level
Develop and install subsystem exits (CICS, Db2, IMS or MQ)
Use JCL and REXX to automate build, install and verification steps
Troubleshoot dumps and abends, and demonstrate that a change is behavior-neutral before it ships