ZipRecruiter

Log In

1

Mainframe Administration Jobs in Missouri (NOW HIRING)

TriOptus LLC

Mainframe CICS Programmer

Belton, MO · On-site

$43.50 - $55.75/hr

EZ consists of experienced administration, operations and engineering staff required to support the ... Mainframe CICS Engineer The Mainframe CICS Systems Programmer/Engineer is responsible for all ...

US Bank

z/OS Systems Engineer

Earth City, MO

Hands-on experience supporting critical mainframe subsystems including CICS, IMS, JES2, IBM MQ, and Db2 for z/OS . * Advanced knowledge of RACF security administration , access controls, and ...

All JobsMainframe Administration JobsMainframe Administration Jobs in Missouri

Mainframe Administration information

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.

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 popular job titles related to Mainframe Administration jobs in Missouri? For Mainframe Administration jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Mainframe Administration jobs in Missouri look for? The top searched job categories for Mainframe Administration jobs in Missouri are:
Mainframe Administration jobs near you
Infographic showing various Mainframe Administration job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 88% Full Time, 8% Part Time, 1% Temporary, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Mainframe CICS Programmer

TriOptus LLC

Belton, MO • On-site

$43.50 - $55.75/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Job Description:
  • Mainframe CICS Engineer
  • As a global financial services firm, client is committed to technological innovation.
  • Client relies on client technologists around the world to create leadingedge, secure platforms for all client businesses.
  • Department Overview Enterprise Technology & Services (ETS) delivers shared technology services for client supporting all business applications and end users.
  • ETS provides capabilities for all stages of client software development lifecycle, enabling productive coding, functional and integration testing, application releases, and ongoing monitoring and support for over 3,000 production applications.
  • ETS also delivers all workplace technologies (desktop, mobile, voice, video, productivity, intranet/internet) in integrated configurations that boost the personal productivity of employees.
  • Application and end user functions are delivered on a scalable, secure, and reliable infrastructure composed of seamlessly integrated datacenter, network, compute, cloud, storage, and database functions.

Client Team:
  • The Enterprise Z organization (EZ) is a technology enabler for the business by providing a strong, resilient, and stable platform to host and enable business innovation/growth in client lines of business and global locations.
  • EZ consists of experienced administration, operations and engineering staff required to support the platform.
  • In addition to flexible hours, the Firm enables its staff to work remotely.
  • The EZ engineers work with the latest hardware and software technologies.
  • The IBM z platform and the mainframe disk and tape technologies are frequently refreshed across client datacenters.
  • Mainframe CICS Engineer The Mainframe CICS Systems Programmer/Engineer is responsible for all phases of CICS engineering, system and software maintenance, and CICS related operational functions.
  • The candidate must be comfortable working with CICS in a 24x7 large scale Sysplex and CICSPlex environment and must be able to interface with application developers and operations teams.
  • The CICS engineer should have strong analytical, organizational and communication skills, as well as indepth knowledge in CICS performance & tuning, debugging and dump analysis.
  • Oncall support and maintenance outside of normal working hours are needed to support the CICS environment and to resolve issues.

Skills Required:
  • Knowledge of SMP/E, software upgrades and maintenance. Knowledge of all CICS parameters that control performance in a CICSPlex environment.
  • Knowledge of CICS SMF record structure and the CICS Performance Analyzer tool to gather statistics necessary to tune CICS regions.
  • Experience with CICSPlex SM implementation & customization, dynamic transaction routing, etc.
  • Knowledge of the CICS resource definitions, including those that pertain to CICS region performance.
  • Experienced with the CICS monitoring tools such as Sysview for CICS..
  • Ability to perform problem determination, dump analysis and performance tuning. Knowledge of Cobol to support application developers.
  • Experience with Mainframe Websphere MQ.
  • Excellent oral/written communication skills

Skills desired:
  • Assembler, COBOL and REXX coding and knowledge of CICS Exits.
  • Web application support in a CICS TS V6.x environment.
  • Understanding of zOS facilities such as: APF, Linklist, VSAM, LPA, RLS, Coupling Facility.
  • Utilization of CICS Configuration Manager.
  • Working knowledge of zOS & CICS Explorer.
  • Understanding of CICS REST Services.
  • Prior Application programming experience a plus.

Apply