ZOS Systems Programmer Analyst

Job Title: zOS Systems Programmer AnalystAdditional Skills & Qualifications

• Understanding of hardware including FICON/ESCON connectivity, DASD architecture, cryptographic coprocessors, data encryption techniques, and virtual tape libraries.
• Experience with zOS SYSPLEX management.
• Skills in dataset/storage/disk/tape management including allocation, backup, restore, and management of storage constructs.
• Ability to work well in a team environment and independently as needed.
• Deep knowledge of zOS and JES System Programming.
• RACF Administration Experience (User IDs, RACF User Groups, Resources, KeyRings, etc.).
• IBM Software Installations (ServerPacs using zOSMF, CBPDO, any related IBM Software product installs and customization).
• Preferred Skills: VTAM, TCP/IP, OSA, z/VM systems programming, Linux on z Systems, zCX (Container Extensions), DS8000, FlashCopy, tape libraries, DFSMS ACS routine and construct management.

Job Description We are seeking an experienced zOS systems programmer to join our team in Boulder, Colorado. The successful candidate will have the opportunity to immediately contribute to zOS Mainframe related tasks and projects, utilizing, increasing, and sharing their technical knowledge and skills in mainframe operating systems. This role is specifically for an experienced systems programmer, not an application developer/programmer. Responsibilities

• Maintain and upgrade the zOS Operating System.
• Support users and other team members by leveraging expertise in mainframe operating systems and resolving operating system software issues across various zOS levels.
• Teach and assist users and other team members.
• Assume additional responsibilities as assigned.

Essential Skills

• Extensive hands-on experience with z/OS systems programming.
• Expert knowledge in catalog management, ISPF, z/FS, Unix System Services.
• Experience with JES2/JES3, SYS1.PARMLIB, SYS1.PROCLIB.
• Ability to configure couple datasets.
• RACF administration experience, including User IDs, Groups, Certificates, and KeyRings.
• IBM software installation via ServerPac, z/OSMF, CBPDO.
• Understanding of DFSMS, DFHSM, DFDSS, DFRMM, System Logger, XCF.
• Knowledge of DASD architecture, FICON/ESCON, cryptographic coprocessors, VTS.
• Proven ability to work independently and take full ownership of z/OS tasks.
• Strong communication and mentoring skills.

Work Environment This is a part-time position, preferred for 3 days a week, totaling approximately 24 hours per week. While the role is primarily remote, the option to come into the office occasionally is available for those located nearby. We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification. Requirements Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. This temporary role may be eligible for the following:

• Medical, Dental & Vision
• 401(k)/Roth
• Basic/Supplemental Life & AD&D
• Short and long-term disability
• HSA & DCFSA
• Transportation benefits
• Employee Assistance Program
• Company Paid Time off or State Sick Leave

Job Type & Location This is a Contract position based out of Boulder, CO. Pay And Benefits The pay range for this position is $44.90 - $61.90/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits Available For This Temporary Role May Include The Following

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type This is a fully remote position. Application Deadline This position is anticipated to close on Nov 24, 2025. About Aston Carter Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® double diamond winner for both client and talent service. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email astoncarteraccommodation@astoncarter.com for other accommodation options.