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Mainframe Operations Jobs in Indiana (NOW HIRING)

Huntington

Site Reliability Engineer

Indianapolis, IN

$54.50 - $72.50/hr

Support Mainframe technologies including z/OS, MVS, CICS, MQ, DB2, COBOL, JCL, TSO/ISPF, Easytrieve ... Drive automation, eliminate operational toil, improve availability, and reduce recurring incidents.

Huntington

Site Reliability Engineer

Indianapolis, IN · On-site

$57K - $113K/yr

Support Mainframe technologies including z/OS, MVS, CICS, MQ, DB2, COBOL, JCL, TSO/ISPF, Easytrieve ... Drive automation, eliminate operational toil, improve availability, and reduce recurring incidents.

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Mainframe Operations information

What are mainframe operations?

Mainframe operations refer to the processes and tasks involved in managing, monitoring, and maintaining mainframe computer systems. These systems are powerful computers used by large organizations for critical applications, bulk data processing, and large-scale transaction processing. Mainframe operators ensure system reliability, perform backups, monitor performance, troubleshoot issues, and coordinate with IT teams to support business operations. Their work is essential to keeping core business systems running smoothly and securely.

What are the key skills and qualifications needed to thrive as a Mainframe Operations professional, and why are they important?

To thrive in Mainframe Operations, you need expertise in mainframe system administration, strong problem-solving skills, and a background in IT or computer science. Familiarity with IBM z/OS, JCL (Job Control Language), automation tools, and monitoring systems is typically required, along with certifications like IBM Certified System Programmer. Attention to detail, strong communication, and the ability to work under pressure help professionals quickly resolve incidents and coordinate with teams. These skills are essential to ensure the reliability, security, and optimal performance of critical enterprise computing environments.

What are some common challenges faced by professionals in Mainframe Operations, and how can they be addressed?

Professionals in Mainframe Operations often encounter challenges such as managing legacy systems, ensuring 24/7 uptime, and swiftly resolving system outages. Staying up to date with new automation tools and best practices can help address these challenges. Additionally, effective communication with application teams and constant monitoring are key to minimizing downtime and ensuring smooth operations. Continuous learning and participation in cross-training sessions can also help team members stay proficient as technologies evolve.

What is the difference between Mainframe Operations vs Mainframe System Programmer?

AspectMainframe OperationsMainframe System Programmer
Primary ResponsibilitiesMonitoring, maintaining, and supporting mainframe systems to ensure smooth operationInstalling, configuring, and optimizing mainframe system software and operating systems
Required SkillsKnowledge of mainframe hardware, job scheduling, and system monitoring toolsExpertise in system software, scripting, and system tuning
CertificationsIBM Certified System Administrator, z/OS certificationsIBM Certified System Programmer, z/OS certifications
Work EnvironmentData centers, mainframe rooms, enterprise IT departmentsData centers, enterprise IT teams, mainframe software support

Both roles are essential in mainframe environments, with Mainframe Operations focusing on system support and monitoring, while Mainframe System Programmers handle system software installation and optimization. They often collaborate but require different skill sets and certifications.

What are popular job titles related to Mainframe Operations jobs in Indiana? For Mainframe Operations jobs in Indiana, the most frequently searched job titles are:
What job categories do people searching Mainframe Operations jobs in Indiana look for? The top searched job categories for Mainframe Operations jobs in Indiana are:
Mainframe Operations jobs near you
Infographic showing various Mainframe Operations job openings in Indiana as of July 2026, with employment types broken down into 6% Locum Tenens, 76% Full Time, 3% Part Time, 9% Contract, and 6% Summer. Highlights an 79% Physical, 5% Hybrid, and 16% Remote job distribution.

Need Senior Mainframe Developer / Mainframe Modernization Consultant - Indianapolis, IN - 20+ Years

Radiantze

Indianapolis, IN • On-site

$46.75 - $60.25/hr

Other

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

Job description

Role: Senior Mainframe Developer / Mainframe Modernization Consultant
Location: Indianapolis, IN
Duration: Long Term
Visa:/ USC
Experience: 20+ Years
Position Summary
We are seeking a highly experienced Senior Mainframe Developer to support, enhance, modernize, and document enterprise-critical mainframe applications. This individual will serve as a technical subject matter expert (SME) for legacy COBOL environments while partnering with business and technical teams to drive system modernization, data migration, process improvements, and knowledge transfer initiatives.
The ideal candidate will possess extensive experience with COBOL development, DB2, VSAM, JCL, Oracle databases, and large-scale conversion efforts within insurance, financial services, pension, or government environments. Experience documenting legacy applications for modernization efforts and mentoring development teams is highly desired.
Responsibilities
Mainframe Development & Support
  • Design, develop, test, and maintain enterprise COBOL applications.
  • Analyze and troubleshoot production issues within mission-critical mainframe environments.
  • Create and maintain JCL, batch processing jobs, interfaces, and reporting solutions.
  • Develop and support applications utilizing DB2, VSAM, Oracle PL/SQL, and Stored Procedures.
  • Perform impact analysis and implement system enhancements while minimizing operational risk.
Mainframe Modernization
  • Analyze and document legacy COBOL applications to support modernization initiatives.
  • Produce business rules, use cases, process flows, and data dictionaries.
  • Assist organizations in migrating legacy code and functionality to modern platforms.
  • Identify opportunities for automation, process efficiency, and technical debt reduction.
Data Conversion & Integration
  • Lead large-scale data conversion and migration projects.
  • Develop and validate data mapping specifications.
  • Support data extraction, transformation, and loading activities.
  • Ensure data quality, reconciliation, and post-conversion validation.
Technical Leadership
  • Serve as a COBOL and Mainframe Subject Matter Expert.
  • Mentor and train junior developers and technical teams.
  • Guide modernization efforts and best practices.
  • Collaborate with business stakeholders, architects, and project managers to align solutions with business objectives.
Project & Process Improvement
  • Participate in project planning, estimation, and delivery.
  • Drive continuous improvement initiatives that improve operational efficiency.
  • Document processes and knowledge artifacts for long-term maintainability.
  • Support testing, implementation, and post-production stabilization activities.
Required Qualifications
  • 10+ years of experience in Mainframe Development (preferred 20+ years).
  • Extensive experience with:
    • COBOL / Micro Focus COBOL
    • IBM Mainframe Environments
    • JCL
    • DB2
    • VSAM
    • Oracle PL/SQL
    • Oracle Stored Procedures
  • Strong experience supporting financial services, insurance, government, or pension systems.
  • Experience performing legacy system analysis and documentation.
  • Experience leading data conversion and modernization projects.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent communication and stakeholder management abilities.
Preferred Qualifications
  • Experience leading technical teams and mentoring developers.
  • Experience with Agile/Scrum methodologies.
  • Certified Scrum Master (CSM).
  • Experience integrating legacy systems with modern technologies.
  • Experience supporting enterprise reporting and data analytics solutions.
  • Knowledge of Java migration projects and modernization frameworks.
Technical Environment
Languages
  • COBOL
  • Micro Focus COBOL
  • Oracle PL/SQL
  • SQL
Databases
  • DB2
  • Oracle
  • VSAM
Platforms
  • IBM Mainframe
  • MVS/VM
  • Windows
Tools
  • JCL
  • Microsoft Project
  • Visio
  • Excel
  • PowerPoint
  • Access
Ideal Candidate Profile
The successful candidate will be a senior-level mainframe professional with deep COBOL expertise, experience modernizing legacy applications, leading conversion initiatives, documenting complex systems, and mentoring technical teams. They will thrive in environments where business-critical systems require both operational support and strategic modernization.

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