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Mainframes Developer Jobs in Indiana (NOW HIRING)

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site +1

$99K - $136K/yr

SOSi is seeking a Senior Systems Engineer to support operations and sustainment of a mission ... Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production ...

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site

$99K - $136K/yr

SOSi is seeking a Senior Systems Engineer to support operations and sustainment of a mission ... Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production ...

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site +1

$99K - $136K/yr

SOSi is seeking a Senior Systems Engineer to support operations and sustainment of a mission ... Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · Remote

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field. * 4+ years of IBM z/OS-based mainframe experience using COBOL, CICS, JCL, TSO, ISPF, Endevor, and REXX. * Strong ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · Remote

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field. * 4+ years of IBM z/OS-based mainframe experience using COBOL, CICS, JCL, TSO, ISPF, Endevor, and REXX. * Strong ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · On-site +1

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field. * 4+ years of IBM z/OS-based mainframe experience using COBOL, CICS, JCL, TSO, ISPF, Endevor, and REXX. * Strong ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · Remote

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field required. * 8+ years of IBM z/OS-based mainframe experience using COBOL, JCL, TSO, ISPF, Endevor, and REXX. * Expertise ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · On-site +1

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field required. * 8+ years of IBM z/OS-based mainframe experience using COBOL, JCL, TSO, ISPF, Endevor, and REXX. * Expertise ...

A.C. Coy

Cobol/IDMS Developer (Remote)

Indianapolis, IN · Remote

$48 - $65/hr

Bachelor's degree in Computer Science, Software Engineering, or a related field required. * 8+ years of IBM z/OS-based mainframe experience using COBOL, JCL, TSO, ISPF, Endevor, and REXX. * Expertise ...

A.C. Coy

FOCUS COBOL CICS Developer (Remote)

Indianapolis, IN · On-site +1

$48 - $65/hr

Bachelor's degree in computer science, software engineering or relevant field is recommended. * 5+ years of mainframe experience using COBOL, CICS, JCL, DB2. * Prior experience working with FOCUS ...

Vergence

Test Analyst

Indianapolis, IN · On-site

$39.48/hr

Work with developers to resolve problems and ensure quality standards are met. * Data validation: Validate data flow between mainframe systems and other interfaces. * Collaboration: Work with Test ...

campus4tech

Senior Test Analyst

Indianapolis, IN · On-site +1

Work with developers to resolve problems and ensure quality standards are met. Data validation: Validate data flow between mainframe systems and other interfaces. Collaboration: Work with Test ...

Morgan Stanley

$110K - $165K/yr

We are searching for a Lead Mainframe Storage Engineer to join the Z Infrastructure team responsible for providing a highly available Z Compute and Storage platform, resilient against infra failures ...

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Mainframes Developer information

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What are popular job titles related to Mainframes Developer jobs in Indiana?

For Mainframes Developer jobs in Indiana, the most frequently searched job titles are:

What job categories do people searching Mainframes Developer jobs in Indiana look for?

The top searched job categories for Mainframes Developer jobs in Indiana are:

Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Indiana as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Senior Software Engineer

Indianapolis, IN • On-site

CyberMedia Technologies
See more jobs at CyberMedia Technologiesexternal

$117K - $154K/yr

Full-time

Medical, Retirement, PTO

Re-posted 22 days ago

Key responsibilities

  • Design, develop, test, implement, and maintain software systems and applications.

  • Collaborate with multidisciplinary teams, including hardware engineers and system architects, to develop integrated software solutions.

  • Analyze and determine computer user needs and system requirements.

Job description

CTEC is a leading technology firm that provides modernization, digital transformation, and application development services to the U.S. Federal Government. Headquartered in McLean, VA, CTEC has over 300 team members working on mission-critical systems and projects for agencies such as the Department of Homeland Security, Internal Revenue Service, and the Office of Personnel Management. The work we do effects millions of U.S. citizens daily as they interact with the systems we build. Our best-in-class commercial solutions, modified for our customers' bespoke mission requirements, are enabling this future every day.

The Company has experienced rapid growth over the past 3 years and recently received a strategic investment from Main Street Capital Corporation (NYSE: MAIN). In addition to our recent growth in Federal Civilian agencies, we are seeking to expand our capabilities in cloud development and footprint in national-security focused agencies within the Department of Defense and U.S. Intelligence Community.

We are currently seeking a  Software Engineer (Senior) to join our team.

Position Summary

The Software Engineer (Senior) is responsible for conducting and/or participating in multidisciplinary research and collaborating with equipment designers and hardware engineers in the planning, design, development, testing, implementation, and utilization of electronic data processing systems software. This role involves analyzing user requirements, advising hardware designers on software-related machine characteristics, and developing system software solutions to support enterprise operations. This position supports the Defense Finance and Accounting Service (DFAS) with their IBM  mainframe-based civilian payroll system.

The ideal candidate will possess extensive experience in software engineering, mainframe technologies, database systems, and performance optimization within complex enterprise environments.

Key Responsibilities

  • Design, develop, test, implement, and maintain software systems and applications.
  • Collaborate with multidisciplinary teams, including hardware engineers and system architects, to develop integrated software solutions.
  • Analyze and determine computer user needs and system requirements.
  • Advise hardware designers on machine characteristics that affect software systems, including:
    • Storage capacity
    • Processing speed
    • Input/output requirements
  • Design and develop compilers, assemblers, utility programs, and operating systems software.
  • Perform software troubleshooting, debugging, and performance tuning.
  • Support system integration, modernization, and enhancement initiatives.
  • Develop and maintain technical documentation and system specifications.
  • Ensure software solutions meet operational, security, and performance standards.
  • Analyze and resolve Action Requests and ABENDs (unplanned program terminations.
  • Design, develop, and maintain micro-applications using Visual Basic for Applications (VBA) within Microsoft Office products (Access, Excel) in response to customer requirements.

Required Qualifications

Candidates submitted for this labor category must possess one of the following required skillsets (not both):

Option 1

  • Expert knowledge and 5–8 years of hands-on experience with:
    • Oracle
    • COGNOS
    • JavaScript

OR

Option 2

  • Expert knowledge and 5–8 years of hands-on experience with:
    • Broadcom Endevor

Preferred Qualifications

  • Expert knowledge and 5–8 years of experience with:
    • IDMS database
    • System performance and measurement
    • COBOL programming
    • JCL
    • Assembler programming (IBM mainframe)
    • REXX scripting; MQ Series (MQSeries 6.0)
    • z/OS mainframe environment; IBM tools: TSO, ISPF, SDSF
    • VBA / Micro-application development (MS Access, MS Excel)

Desired Skills

  • Strong analytical and problem-solving abilities.
  • Experience supporting large-scale enterprise or government environments.
  • Excellent written and verbal communication skills.
  • Ability to work independently and collaboratively within technical teams.
  • Experience with legacy system modernization and integration efforts is a plus.
  • Experience with DFAS, DoD, or civilian payroll systems (e.g., DCPS or equivalent government financial systems).
  • Familiarity with DoD/DFAS security requirements and CAC-enabled environments; understanding of CMMI Level 4 processes.

Education & Experience

  • Bachelor's degree in Computer Science, Information Systems, Engineering, or related field preferred.

Clearance: Active Secret clearance required.

If you are looking for a fun and challenging environment with talented, motivated people to work with, CTEC is the right place for you. In addition to employee salary, we offer an array of employee benefits including:

  • Paid vacation & Sick leave

  • Health insurance coverage

  • Career training

  • Performance bonus programs

  • 401K contribution & Employer Match

  • 11 Federal Holidays