Senior Mainframe Systems Programmer

Alithya; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Unlimited vacation

Virtual healthcare

Wellness portal

Access to online courses

Tuition reimbursement

Employee share purchase plan

Job summary

Alithya in the United States is seeking a Senior Mainframe Systems Programmer to work on low-level z/OS tooling in a test environment. The role is assembler-centric, operating below the application layer and collaborating with infrastructure, application and security teams to implement module-level changes and diagnostics.

You will write and maintain HLASM code, build modules, work with VSAM/QSAM, develop subsystem exits (CICS, Db2, IMS or MQ), and use JCL/REXX to automate steps while

Qualifications

• 8+ years of hands-on z/OS experience with focus below the application layer.
• Strong HLASM skills; COBOL/PL/I not a substitute.
• Binder and linkage-editor fluency.
• Knowledge of Language Environment internals and VSAM/QSAM control blocks.
• Z/OS security model (APF, authorized concatenations) familiarity.
• JCL, REXX proficiency; dump and abend analysis capabilities.

Responsibilities

• Write and maintain HLASM code that runs in the runtime/subsystem environment.
• Build and package modules and analyze load modules.
• Work with VSAM/QSAM control blocks and Language Environment.
• Develop and install subsystem exits (CICS, Db2, IMS or MQ).
• Automate build, install and verification steps with JCL and REXX.
• Troubleshoot dumps and abends; demonstrate behavior-neutral changes before ship.

Skills

z/OS

HLASM

JCL

REXX

VSAM

QSAM

CICS Exits

Db2 Exits

IMS/MQ Internals

Dump/Abend Analysis

SMP/E

z/OS Security Model (APF)

GTF/Trace Tools

Tools

VSAM

QSAM

JCL

REXX

IPCS

SMP/E

z/OS Diagnostics

Job description

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.

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.

Keys to your success

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).

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, or IBM Z certifications.

Our mission, your future

As a global network of trusted advisors, we create cutting-edge technological solutions to overcome today’s challenges and anticipate tomorrow’s needs. It all starts with the collaboration of a diverse team of passionate innovators, each driven to make a difference. Together, we challenge the status quo and push each other to new heights.

Ready to leave your mark on engaging mandates and shape the future through digital transformation and strategic consulting? Take your ambitions to the next level and discover your next exciting challenge with us!

Our offer

Balance that works for you:

Work-life balance helps us stay at our best. With flexible work options and our Unlimited Vacation Plan, you can rest and recharge when you need it most.

Support for your well-being:

You’ll have access to 24/7 virtual healthcare, as well as an extensive wellness portal that provides tools and resources to support your physical, mental, emotional and financial well-being.

Continuous growth and learning:

Through partnerships with world-renowned education leaders, we provide access to thousands of top-rated online courses and certifications. With exclusive leadership programs and a tuition reimbursement program for external training, we set you up to achieve your ambitions.

Ownership with opportunity

Through our Employee Share Purchase Plan with matched contributions, you become a shareholder, directly benefiting from our collective achievements.

Our commitments

Our authenticity is our strength:

The diversity of our backgrounds, experiences, thoughts and insights is our competitive advantage. We foster a collaborative environment where we embrace our authenticity and leverage our unique perspectives to collectively build the future we all envision.

An inclusive path to success:

Fostering an environment where you can thrive starts with ensuring an accessible recruitment process. If you require any accommodations , we welcome you to contact us. For more information, please visit our accessibility page: https://www.alithya.com/en/accessibility .