Mainframe Systems Programmer

Job ID: 113378
Location: Fairfax, Virginia  [Remote]
Category: Infrastructure
Employment Type: Contract
Date Added: 08/20/2026
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Role Summary
This position requires an experienced IBM z/OS (Mainframe Systems Programmer) to support and maintain the z/OS environment. The role involves assisting the primary support team by providing backup and technical expertise in mainframe systems, hardware, and software support. The candidate will ensure smooth operation, troubleshooting, and updates of the mainframe systems, while collaborating with vendors and application teams as needed.

Responsibilities

  • Install, maintain, and upgrade the MVS z/OS operating system and related hardware components.
  • Support and modify assembler language exits, ensuring system modifications align with operational requirements.
  • Diagnose and resolve software and hardware issues within the z/OS environment.
  • Interact with IBM and other software vendors to install, configure, and troubleshoot vendor software.
  • Provide technical support to application teams for mainframe-related queries and issues.
  • Assist with disaster recovery planning and execution to ensure system resilience.
  • Support OEM vendor software installation, maintenance, and troubleshooting processes.
  • Maintain detailed documentation of system configurations, modifications, and troubleshooting steps.
  • Collaborate with small team members to cover various operational duties and responsibilities.
  • Stay current on z/OS updates, patches, and vendor support offerings to ensure system stability and security.

Qualifications

  • Proven experience with installing, maintaining, and troubleshooting IBM z/OS (Mainframe Systems Programmer) environments.
  • Strong assembler language programming skills, with the ability to support and modify assembler-coded exits.
  • Knowledge of MVS operating system architecture, hardware, and mainframe utilities.
  • Experience interacting with IBM and third-party vendors to resolve hardware/software issues.
  • Ability to provide technical support for mainframe applications and ensure system stability.
  • Excellent troubleshooting and problem-solving skills.
  • Familiarity with disaster recovery procedures for mainframe systems.
  • Strong communication skills for effective collaboration within a small team.
  • This position requires eligibility for a U.S. Government security clearance. In accordance with federal law, U.S. citizenship is required.
  • Availability to work in a remote setting.

Publishing Pay Range: $50.00 – $70.00 USD Hourly

This is a fully remote role and can be performed from an approved location.

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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