
Sr or Lead zOS Mainframe Systems Engineer
Reston, VAJobSeen todaySeen in employer's feed today
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At a glance
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Job overview
System One seeks a senior or lead mainframe z/OS Systems Engineer to support the mainframe platform and environments and help maintain, transform, and modernize the FEPOC technology stack. The role includes engineering activities, collaboration with a managed service provider, platform resiliency and availability improvements, incident response, and root cause analysis. The posting requires extensive IBM z/OS systems experience and lists several strongly desired technical competencies.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Seeking a senior or lead mainframe z/OS Systems Engineer to support the mainframe platform and environments and help in the maintenance, transformation, and modernization of the FEPOC mainframe technology stack.
Tasks:
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Lead and participate in the analysis, design, development, and implementation of mainframe system engineering activities.
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Work with existing mainframe managed service provider to improve and optimize services to internal and external customers and improve resiliency and availability of the z/OS mainframe platform.
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Analyze and recommend improvements to the scalability and resiliency of applications and systems running on Z platform.
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Provide hands on technical support for incident assessment and resolution for restoration of service.
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Support problem Root Cause Analysis (RCA).
Competencies:
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Solid leadership and hands on technical experience
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Good project management and ability to provide technical guidance to diverse teams.
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Internal drive, intellectual curiosity, ability to learn, and desire to help the customers succeed.
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Strong technical skills as well as good business acumen
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Comfortable working with all levels of the organization
Required Skills:
Infrastructure engineer with a minimum of 8-10 years experience supporting IBM zOS Systems in a SYSPLEX environment with the following skills:
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RACF -Security Administration 5-10 years experience
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ZOS – Systems Programmer 5-10 years of experience
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CICS TS –Systems Programming 5 -10 years of experience
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MQ – 5-10 years Systems Programming
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DB2 – 5-10 years usage , doesn’t have to be at Systems Programming level
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ISV Production installation experience
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General Systems Automation support (IBM System Automation)
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General Batch Scheduling support – Control-M
Strongly Desired Skills:
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SYSPLEX and ICF configuration and tuning. Experience in de-coupling Sysplex environment is a plus.
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Experience with Middleware interfaces such as AIX, WebSphere, Networks, LDAP is preferred
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Working knowledge of network communication protocols (TCPIP)
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Excellent knowledge of hardware infrastructure of IBM z16 and Dell/EMC storage subsystems.
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Pervasive encryption on z/OS
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Ransomware solutioning for mainframe
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Java/J2EE
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DB2/UDB
Ref: #851-Rockville-S1
System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
How this job compares
Set against the 11,543 open Systems Engineer jobs on Olive Jobs, counted November 12, 2026.
- Pay
- This postingNot listed
- Virginia median$118–182K/yr911 salary ranges
- US median$60–70/hr371 hourly ranges
- Openings
- Olive Jobs lists 1,148 open Systems Engineer jobs in Virginia and 11,543 across the US. 5% of them nationwide are listed as remote or flexible.
- Experience
- This posting asks for at least 8 years of experience; Systems Engineer postings that state a minimum ask for 5 years at the median (9,608 postings).
- Education
- 4,347 of the 11,543 open Systems Engineer jobs (38%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 12, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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