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Ibm Mainframe Jobs in Missouri (NOW HIRING)

US Bank

z/OS Systems Engineer

Earth City, MO · On-site

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 ...

Jobgether

Additional experience with COBOL, IBM Mainframe technologies, ISPF, JCL, SPUFI, SCLM, Java, .NET, Spring Boot, Angular, cloud platforms, CI/CD tools, or automation technologies is a plus. Benefits:

US Bank

Principal Network Engineer z/OS

Earth City, MO · On-site

Administer, configure, maintain, and troubleshoot IBM z/OS Communications Server , including VTAM ... Monitor, analyze, and resolve complex mainframe networking issues involving multiple protocols ...

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$9

$50

$67

How much do ibm mainframe jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for ibm mainframe in Missouri is $50.07, according to ZipRecruiter salary data. Most workers in this role earn between $44.18 and $56.83 per hour, depending on experience, location, and employer.

What is an IBM Mainframe?

An IBM Mainframe job involves working with large-scale computing systems used by enterprises for critical applications, such as banking, healthcare, and government operations. Professionals in this role handle mainframe operations, programming (COBOL, JCL), database management, and system administration. They ensure uptime, performance, and security of mainframe environments. Experience with z/OS, CICS, and DB2 is commonly required.

What are some typical challenges faced by IBM Mainframe professionals in their daily work?

IBM Mainframe professionals often encounter challenges like maintaining legacy systems, troubleshooting complex batch job failures, and ensuring system uptime and security. They may need to work with both older code bases and modern integration tools, requiring ongoing learning and adaptability. Collaboration with cross-functional teams—such as application developers, system administrators, and business analysts—is common to resolve issues and implement new features. Staying updated with mainframe advancements and best practices is essential to ensure the reliability and efficiency of the organization’s core IT infrastructure.

Is IBM Mainframe a good career option?

IBM Mainframe is a specialized IT role focused on maintaining and developing large-scale enterprise systems using mainframe technologies like COBOL, JCL, and z/OS. It offers stable employment, competitive salaries, and opportunities for certification and skill development in legacy and modern mainframe environments. This career is suitable for individuals interested in systems programming, data processing, and enterprise IT infrastructure.

What are the key skills and qualifications needed to thrive in the IBM Mainframe position, and why are they important?

To thrive as an IBM Mainframe professional, you should possess a strong understanding of mainframe operating systems (such as z/OS), programming languages like COBOL or JCL, and experience with database management. Familiarity with IBM mainframe tools, utilities, and certifications such as IBM Certified System Programmer or Administrator is highly valuable. Strong analytical thinking, diligent problem-solving, and effective communication are essential soft skills in this role. These skills are critical because IBM Mainframe environments often support mission-critical applications where precision and reliability are paramount.

What are popular job titles related to Ibm Mainframe jobs in Missouri?

For Ibm Mainframe jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Ibm Mainframe jobs in Missouri look for?

The top searched job categories for Ibm Mainframe jobs in Missouri are:

Ibm Mainframe jobs near you
Infographic showing various Ibm Mainframe job openings in Missouri as of August 2026, with employment types broken down into 58% Full Time, 38% Part Time, and 4% Contract. Highlights an 94% Physical, 3% Hybrid, and 3% Remote job distribution, with an average salary of $104,143 per year, or $50.1 per hour.

Sr. Java with Cobal/Mainframe experience(St. Louis City in Missouri) Hybrid and Day 1 Onsite

TestingXperts Inc. DBA Damcosoft

Saint Louis, MO • On-site

$47.75 - $61.25/hr

Contractor

Re-posted 13 days ago

Job description

Position Title

Sr. Java Engineer with Cobol/Mainframe

Domain EXP

(Banking Domain)

Location

St. Louis, MO (3 days hybrid at Client office)

Duration

6 Months

Must Have   

Java with COBOL and Mainframe requirement.

Job Description

The File Transfer Services team is looking for a Lead Software Engineer to drive our customer connectivity strategy forward by consistently innovating and problem-solving. The ideal candidate is passionate about the customer experience, highly motivated, intellectually curious, analytical, and possesses an entrepreneurial mindset.

In this key position, you will:

  • Design and develop high-performing Java and running on Linux. Ability to work on COBOL and mainframe (z/OS)  technologies is a plus.
  • Ensure scalability, security, and reliability of applications on Linux-based and mainframe-based infrastructures.
  • Translate complex technical solutions into business impacts for non-technical audiences.
  • Lead mainframe modernization efforts, bridging legacy COBOL, JCL, DB2 systems with Linux and Java applications.
  • Guide development teams in Agile best practices, ensuring consistent delivery and continuous improvement.
  • Provide technical leadership in software development, system architecture, and best coding practices.
  • Conduct design reviews, code reviews, and uphold coding standards.
  • Mentor and coach engineering teams, fostering a culture of technical excellence.
  • Collaborate with stakeholders to understand business requirements and translate them into technical solutions.
  • Present technical strategies, incident reports, and status updates to executive leadership and senior stakeholders.
  • Work closely with DevOps to automate deployments, and with BizOps to troubleshoot and resolve application, performance, and reliability issues.
  • Function as Scrum Master, facilitating daily stand-ups, sprint planning, retrospectives, and backlog grooming.
  • Stay up to date with emerging technologies.

The ideal candidate for this position should possess:

  • 8+ years of software development experience in Java/Linux with strong shell scripting and Linux command line skills. Experience working on Mainframe technologies is  a plus.
  • 3+ years of experience with file transfer applications like Connect Direct, and file transfer protocols like SFTP, FTPS, etc..
  • 3+ years of experience writing, optimizing, and automating tasks using Linux shell scripting.
  • Hands-on experience with IBM mainframe technologies, including COBOL, JCL, DB2, VSAM, CICS, and z/OS.
  • Expert in SQL queries and relational databases (DB2, Oracle, PostgreSQL)
  • Familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT) and vulnerability management.
  • Awareness of security standards and RFC’s such as X.509 Certificates, SSH Keys, PGP encryption.
  • Has skills to orchestrate release workflows and pipelines and apply standardized pipelines via APIs to achieve CI and CD objectives using industry standard tools (e.g., Jenkins, XL Release, others).
  • Understands how to build robust tests to minimize defect leakage by performing regression, performance, deployment verification, and release testing.
  • Experience working as technical lead and/or Scrum Master.
  • Good knowledge of Scaled Agile Framework (SAFe).