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Mainframe Administration Jobs in California (NOW HIRING)

Integrated Resources INC

Web Developer

Sacramento, CA · On-site

... a CICS mainframe environment - desired CICS COBOL API in a SQL DB environment - Desired VB6 ... system administration - Desired Modular web application development - Required Test-driven ...

Judge Group, Inc.

Lead Software Engineer

Newport Beach, CA · On-site

$83 - $84/hr

Lead the design and development of an AWS-based operational data layer containing replicated data from mainframe policy administration systems. * Build ingestion and processing components supporting ...

ClifyX

B2B Product Manager

Irvine, CA · On-site

... SAP, Mainframe etc.) simultaneously, designing unified account, single invoice, single statement ... BA/BS in Business Administration or MBA Finance (or equivalent) from a top-tier institution, or ...

ClifyX

B2B Product Manager

Irvine, CA · On-site

... SAP, Mainframe etc.) simultaneously, designing unified account, single invoice, single statement ... BA/BS in Business Administration or MBA Finance (or equivalent) from a top-tier institution, or ...

Belcan Corporation

Program Administrator

Irvine, CA · On-site

$83 - $96/hr

... Mainframe, SAP, and homegrown ERPs * Triage EDI errors and exceptions; compile and interpret error ... Qualifications * Bachelor degree in applicable field (e.g., Business Administration, Business ...

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Mainframe Administration information

What is mainframe administration?

Mainframe Administration involves managing and maintaining mainframe computer systems, which are powerful servers used by large organizations for critical applications and bulk data processing. Mainframe Administrators are responsible for installing, configuring, monitoring, and securing mainframe hardware and software. They ensure system performance, troubleshoot technical issues, handle backup and recovery, and apply updates or patches to keep systems running smoothly and securely. This role often requires strong technical skills, attention to detail, and the ability to work with legacy systems.

What are the key skills and qualifications needed to thrive as a mainframe administrator, and why are they important?

To thrive as a Mainframe Administrator, you need a solid understanding of mainframe operating systems (such as z/OS), system configuration, and troubleshooting, typically supported by a degree in computer science or related IT experience. Familiarity with tools like IBM System Automation, JCL, RACF, and monitoring solutions, as well as certifications such as IBM Certified System Administrator, is highly valued. Strong analytical thinking, attention to detail, and effective communication skills help administrators efficiently resolve issues and collaborate with IT teams. These skills and qualifications are essential to ensure the reliability, security, and optimal performance of critical enterprise computing environments.

What are some common challenges faced by mainframe administrators and how can they be addressed?

Mainframe Administrators often encounter challenges such as managing legacy systems, ensuring system uptime, and balancing security with accessibility. Keeping up with evolving technologies and integrating mainframes with modern applications can require continuous learning and adaptation. Effective communication with development and operations teams is vital to ensure seamless updates and minimize downtime. Proactively monitoring system performance and applying best practices for disaster recovery can also help mitigate risks and maintain reliability.

What is the difference between Mainframe Administration vs Mainframe Support?

AspectMainframe AdministrationMainframe Support
CertificationsIBM Certified System Administrator, z/OS certificationsSimilar certifications, often including z/OS support certifications
Work EnvironmentData centers, enterprise IT departments managing mainframe systemsHelp desks, support teams assisting users and troubleshooting issues
ResponsibilitiesSystem setup, configuration, maintenance, performance tuningIssue resolution, user support, incident management
Industry UsageFinancial institutions, government agencies, large corporationsSame industries, focusing on user support and problem resolution

Mainframe Administration involves managing and maintaining mainframe systems, ensuring optimal performance and security. Mainframe Support focuses on assisting users, troubleshooting issues, and resolving incidents. Both roles require similar certifications and are vital in industries relying on mainframe technology, but they differ in daily responsibilities and focus areas.

Is it hard to become a mainframe administrator?

Becoming a mainframe administrator requires a strong understanding of mainframe systems like IBM z/OS, proficiency in scripting and automation, and often a relevant certification. The role can be technically challenging due to the complexity of mainframe environments, but with proper training and experience, it is achievable for those with a background in IT or computer science.

Is mainframe administration a good career option?

Mainframe administration is a stable and well-paying career that involves managing large-scale computer systems used by many organizations. It requires knowledge of mainframe operating systems like z/OS, skills in system maintenance, and often certifications such as IBM Certified System Administrator. The role offers opportunities for specialization and long-term job security due to the continued reliance on mainframes in industries like finance and government.

What does a mainframe administrator do?

A mainframe administrator manages and maintains large-scale computer systems known as mainframes, ensuring their security, performance, and availability. They configure hardware and software, monitor system operations, troubleshoot issues, and implement updates, often using tools like z/OS and requiring knowledge of system security and backup procedures.

What are popular job titles related to Mainframe Administration jobs in California?

For Mainframe Administration jobs in California, the most frequently searched job titles are:

What job categories do people searching Mainframe Administration jobs in California look for?

The top searched job categories for Mainframe Administration jobs in California are:

What cities in California are hiring for Mainframe Administration jobs?

Cities in California with the most Mainframe Administration job openings:

Mainframe Administration jobs near you
Infographic showing various Mainframe Administration job openings in California as of August 2026, with employment types broken down into 1% As Needed, 89% Full Time, 8% Part Time, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

EDI & Digitalization Program Administrator

804 Technology

Irvine, CA

$70 - $72/hr

Contractor

Re-posted 2 days ago

Job description


SUMMARY: This role will be responsible for supporting reliable customer EDI connections and expanding our SAP-based EDI capabilities via Aeroxchange. As well as leading projects mapping SAP to internal applications to automate workflows and improve efficiencies.
This role will collaborate with customer service, IT, and other internal functions to keep projects aligned and on schedule.
Responsibilities:
  • Monitor, maintain, and improve EDI compliance to meet and exceed customer expectations across Mainframe, SAP, and homegrown ERPs
  • Triage EDI errors and exceptions; compile and interpret error reports; drive resolution plans with EDI developers; communicate status and timelines to
    internal/external stakeholders
  • Assist in the roll-out of new capabilities for the SAP based-EDI connections; onboard new customers to this environment and ensure their expectations are met
  • Prepare documentation and Procedures for EDI and E-business processes.
  • Deliver and maintain end-to-end automated solutions: business document->transformation + enhancement (Alteryx) -> SQL table-> Dashboard (Power BI)
  • Perform root-cause analysis and recommend process improvements
  • Uphold documentation, testing, and change management best practices
  • Maintain professional and technical knowledge by attending educational workshops, reviewing professional publications, establishing networks, and/or
    participating in professional associations.

Qualifications:
  • Bachelor degree in applicable field (e.g., Business Administration, Business Intelligence, Computer Science, Computer Information Systems, Engineering), PMP Certification preferred.
  • 5+ years preferred related work experience
  • Outstanding analytical and problem-solving skills
  • Self-starter able to independently complete tasks accurately and quickly
  • Proficient data transformation skills, Alteryx knowledge preferred
  • Knowledge of Aeroxchange (Aerospace EDI middleware facilitator)

 
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About 804 Technology

Sourced by ZipRecruiter

In today’s environment, successful companies need more than what just works, they need unique options for their individual business needs. 804 adjusts to changing needs and then helps clients expand to meet the unfamiliar without sacrificing their trust. 804’s greatest company value is what we deliver; we deliver people. They are the core of our business. That is why we only consider ourselves successful when our people deliver to your expectations.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

Cottleville, MO, US

Year founded

2004

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