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Freelance Mainframe Applications Developer Jobs Near Me

ITTConnect

Senior Mainframe Developer (zOS)

Columbus, OH · On-site

ITTConnect is seeking a Senior Mainframe Developer (zOS Environment) to work on site for a client ... mainframe applications are being API-enabled and integrated into an AI-driven utility platform. You ...

Judge Group, Inc.

Mainframe Engineer

Dublin, OH · On-site

$50 - $60/hr

Design, develop, test, and maintain mainframe applications using COBOL, CICS, DB2, and JCL ... Strong proficiency in: * COBOL programming * CICS online transaction processing * DB2 (SQL ...

Accenture

Mainframe Specialist

Columbus, OH

$70K - $196K/yr

Lead the design, development, and modernization of mainframe applications, enforcing best practices ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Hartford, OH

$70K - $196K/yr

Lead the design, development, and modernization of mainframe applications, enforcing best practices ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Lorven technologies

Senior Java Developer

Columbus, OH · Remote

$130K - $140K/yr

Exposure to mainframe systems and applications, particularly DB2, with an understanding of ... CI/CD, and DevOps tooling. Professional Skills: Strong analytical, problem-solving, and ...

Lorven Technologies

Senior Java Developer

Columbus, OH · On-site +1

$55.25 - $70.50/hr

Exposure to mainframe systems and applications, particularly DB2, with an understanding of ... CI/CD, and DevOps tooling. Professional Skills: Strong analytical, problem-solving, and ...

USM

Mainframe Developer-----Need GC and USC

Columbus, OH · On-site

$47.25 - $60.75/hr

Mainframe Developer Duration - 18 months Location - Columbus, OH Need GC and USC Top Three Skills ... Competent to work at the highest technical level of all phases of applications programming ...

Apex Systems

IAM Mainframe Engineer

Columbus, OH · On-site

Job#: 3040161 IAM Mainframe Engineer Location: Columbus, Ohio (Partial Remote) Role Overview The ... Experience with onboarding and decommissioning applications into RACF structures. * Experience in ...

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How much do freelance mainframe applications developer jobs pay per hour?

As of Jul 18, 2026, the average hourly pay for freelance mainframe applications developer in the United States is $48.94, according to ZipRecruiter salary data. Most workers in this role earn between $43.51 and $56.97 per hour, depending on experience, location, and employer.
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Freelance Mainframe Applications Developer jobs near you
A map of the United States highlighting the number of Freelance Mainframe Applications Developer job openings by state according to ZipRecruiter. The image is accompanied by a detailed chart listing the number of Freelance Mainframe Applications Developer job openings in each state, with California having the most at 2 and Hawaii the least at 0.
Mainframe Developer

Mainframe Developer

Inabia Software & Consulting Inc.

Columbus, OH • On-site

$45.75 - $58.75/hr

Other

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

Job description

Overview

Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design, develop, and optimize mainframe applications while ensuring seamless integration within existing infrastructure. You will play a key part in troubleshooting, performance tuning, and adhering to best practices in enterprise software development.

Responsibilities

  • Analyze and understand existing Assembler programs and system interfaces.
  • Design, develop, test, and deploy enhancements and bug fixes in IBM Assembler (HLASM).
  • Design, develop, test, and deploy enhancements and bug fixes in COBOL-CICS.
  • Perform code walkthroughs and support system and integration testing efforts.
  • Create and maintain technical documentation for application processes and workflows.
  • Assist in resolving production issues and providing ongoing application support.
  • Participate in performance tuning and code optimization initiatives.
  • Contribute to modernization efforts such as re-engineering or re-platforming mainframe workloads.

Key Qualifications

  • Must be available to be onsite 5-days per week in our Columbus, OH office
  • Strong programming skills in IBM Assembler (HLASM) — mandatory.
  • Strong programming skills in COBOL-CICS — mandatory.
  • Hands-on experience with JCL, VSAM, and DB2.
  • Working knowledge of Changeman or similar change management tools.
  • Familiarity with Mainframe Utilities such as SORT and IDCAMS.
  • Ability to interpret functional requirements and translate them into technical solutions.

Preferred Qualifications

  • Exposure to mainframe modernization projects, including re-engineering or re-platforming workloads.
  • Experience with performance tuning and optimization of mainframe applications.

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