JOBSEARCHER

z/OS Mainframe Developer / Programmer

GittcBoulder, COApril 12th, 2026
Summary• Successful candidate will be performing the tasks of a zOS Systems Programmer maintaining and upgrading the zOS Operating System and supporting users.• This assignment is a hybrid position, located in Boulder Colorado (free parking), where the candidate may need to come on site periodically.• We would consider a remote worker (U.S.) for the right candidate that contains the required z/OS skills and technical knowledge.• There will be no extensive lifting, standing, or walking. No driving is required as well. Dress code is casual business attire. This role is for an experience Systems program, not an application developer/programmer, The experienced z/OS systems programmer candidate will join a small team of technical system experts who manage, upgrade, and support IBM zOS Mainframe systems. The Development Support team provides valuable systems, expertise, and support to Development professionals who are responsible for multiple stages of development from requirements definition, architecture, implementation, and customer support for software and hardware print products.The successful candidate will be provided an opportunity to immediately contribute to zOS Mainframe related tasks and projects, as well as opportunities to utilize, increase, and share their technical knowledge and skills in the mainframe operating systems.The candidate will leverage their expertise of mainframe operating systems and strong problem-solving skills to upgrade systems, resolve system issues, and assist and educate users and other team members.The new team member will be expected to assume additional responsibilities as assigned.Must work effectively in a team environment, but also be able to carry out tasks independently while working alongside industry experts.​***Shift timings***8:00 am to 5:00 pm (Mon to Fri)Job Type: Temp to perm Roles & ResponsibilitiesScope of work encompasses multiple components, or a complex component, of a software product or solution. Solves complex software engineering problems within the company.Uses judgment within defined policies and practices.Ensures design and code development incorporates latest technologies and maximizes resources.Makes decisions and recommendations on priorities, design changes, improvements, and problem resolution.Defines, recommends, and implements software alternatives and solutions which will achieve a high level of efficiency and customer satisfaction.Advises other professionals on complex software product issues related to own discipline.Leads professional teams and significant project planning activities, ensuring that development is completed in a timely and cost effective manner.Accountable for completion of team or departmental results and activities and or projects involving multi functional teams on or ahead of schedule while achieving or improving cost and quality objectives.Decisions have a direct and significant effect on project/team objectives and directly impact customer satisfaction, cost, quality and expense Provides on-going technical guidance and leadership for software development projects within the team or functional area.Thoroughly understands and effectively executes existing software development processes and procedures and develops new approaches as appropriate.Actively participates in defining and deciding upon objectives which support the changing business needs.Contributes to development of organizational goals.Failure to accomplish would normally have serious results and substantial additional l resources to correct.Ensures accurate and thorough documentation is maintained for the project.Assumes additional responsibilities as assigned. Minimum QualificationsEDUCATION / CERTIFICATIONS:• Bachelor's degree preferred with at least 5 -- 7 years of work experience, or equivalent zOS experience.REQUIRED SKILLS:• Mainframe zOS systems software programming experience and expertise• Experience working with hardware to include a basic understanding of FICON/ESCON connectivity, DASD architecture [alias (PAV) management, cryptographic coprocessors, data encryption techniques] and virtual (VTS) tape libraries.• zOS experience with catalog management, ISPF/SDSF, z/FS Filesystems, Unix System Services, RACF, JES parameters, SYS1.PARMLIB, SYS1.PROCLIB members.• zOS SYSPLEX management including couple dataset definition and coupling facilities.• Dataset/Storage/Disk/Tape management (allocation, backup, restore, etc.) including DFDSS, DFSMS storage constructs, DFHSM Mgmt/Cleanup, DFRMM, XCF, System Logger, etc.• Ability to debug and resolve Mainframe operating system software issues (across older to current z/OS levels)• Work well in a team environment• Ability to teach and assist users and other team members• Availability to work some weekend / off-shift coverage and maintenance windows• Deep knowledge of zOS and JES System ProgrammingRequired SkillszOS SYSPLEX managementJES System ProgrammingData ManagementzOS Operating System