Senior Mainframe Systems Programmer — Flexible Work & Growth

Alithya; Dallas (TX); Presencial; USD 120.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible work options

Unlimited vacation plan

24/7 virtual healthcare

Descripción de la vacante

Alithya in Dallas seeks a Senior Mainframe Systems Programmer to work on low-level IBM z/OS tooling in a test environment. The role is assembler-centric and sits below the application layer, collaborating with infrastructure, application and security teams.

You will write and maintain HLASM code, build modules, work with VSAM/QSAM, and develop subsystem exits (CICS, Db2, IMS or MQ). JCL/REXX automation and robust dump/abend analysis are essential.

Formación

• 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).

Responsabilidades

• 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.

Conocimientos

analytical thinking

troubleshooting

team collaboration

problem solving

Herramientas

HLASM

JCL

REXX

VSAM

QSAM

CICS

Db2

IMS

MQ

z/OS

Descripción del empleo

Alithya in Dallas seeks a Senior Mainframe Systems Programmer to work on low-level IBM z/OS tooling in a test environment. The role is assembler-centric and sits below the application layer, collaborating with infrastructure, application and security teams.

You will write and maintain HLASM code, build modules, work with VSAM/QSAM, and develop subsystem exits (CICS, Db2, IMS or MQ). JCL/REXX automation and robust dump/abend analysis are essential.