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Freelance Mainframe Applications Developer Jobs (NOW HIRING)

Mainframe DB2 Developer

Columbus, OH ยท On-site

$47.25 - $60.75/hr

Mainframe DB2 Developer Location: Columbus, OH (100% Onsite from Day 1) Experience: 10+ Years Roles ... Design, develop, enhance, and maintain mainframe applications using COBOL, JCL, and DB2. * Perform ...

Mainframe Developer

Salt Lake City, UT ยท On-site

$47.50 - $61/hr

Mainframe Developer We are seeking an experienced Mainframe Developer to join our team in Salt Lake ... and supporting mission-critical mainframe applications. This role requires strong technical ...

Mainframe Developer

Jersey City, NJ ยท On-site

$51.25 - $65.75/hr

Senior Mainframe Engineer (COBOL/CICS/DB2) Must Have Skills: -COBOL, CICS, DB2, JCL - Oracle and ... Maintain and optimize existing mainframe applications, focusing on COBOL, CICS (online and batch ...

Mainframe

Schaumburg, IL ยท On-site

$48.25 - $62/hr

... cics programming languages. 2. Strong understanding of mainframe architecture and technologies. 3. Experience in designing and developing mainframe applications. 4. Ability to troubleshoot and ...

Mainframe DB2 Developer

Columbus, OH ยท On-site

$45.75 - $58.75/hr

Mainframe DB2 Developer Location: Columbus, OH (100% Onsite from Day 1) Experience: 10+ Years Roles ... Design, develop, enhance, and maintain mainframe applications using COBOL, JCL, and DB2. * Perform ...

Sr. Mainframe Developer

Charlotte, NC ยท On-site

$47.75 - $61.50/hr

Sr. Mainframe Developer Location: Charlotte, NC - Onsite Experience: 12+ Duration: Long Term Key ... Design, develop, and maintain mainframe applications utilizing Telon, COBOL, CICS, DB2, JCL, VSAM ...

Mainframe Developer

Alpharetta, GA ยท On-site

$47.75 - $61.50/hr

Mainframe Developer req. Johns Creek, GA Need only local candidates Hybrid (2 days onsite) We are ... Manage data backup and restore processes for mainframe applications, ensuring data integrity and ...

Mainframe Developer

Prosper, TX ยท Hybrid

$50/hr

A Mainframe Developer required in developing and maintaining applications on mainframe systems, typically using languages like COBOL, JCL, and CICS. * Strong knowledge of DB2. What are the key ...

Mainframe Developer

Washington, DC ยท On-site

$55.50 - $71.25/hr

Other mainframe applications may be added later. Detailed Description * Expertise programming skills with COBOL * Experience with coding in Easytrieve * Ability to perform Developer activities ...

Mainframe Developer

Morristown, NJ ยท On-site

$50.50 - $64.75/hr

NAVA Software solutions is looking for a Sr. Mainframe Engineer Details: Role: Sr. Mainframe ... Be responsible for building Mainframe applications Qualifications: * 5 - 8 years of relevant ...

Role - Senior Mainframe Developer Location - Hartford, CT/Remote Exp need - 8+ years Develop and maintain mainframe applications using: * COBOL * JCL * CICS * VSAM * on IBM mainframe systems.

Mainframe Developer

Atlanta, GA ยท On-site

$47 - $60.50/hr

Experience implementing CI/CD pipelines for mainframe applications. * Expertise with IBM DBB, Jenkins, GitHub/GitLab/Bitbucket, and DevOps automation tools. * Experience with mainframe migration and ...

MainFrame Engineer

Murphy, TX ยท On-site

$46.75 - $60.25/hr

We are looking for an experienced Mainframe Developer with a strong background in COBOL, JCL, DB2, and CICS to design, develop, and maintain business-critical mainframe applications. The ideal ...

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Freelance Mainframe Applications Developer information

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$10

$48

$66

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

As of Jun 26, 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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Infographic showing various Freelance Mainframe Applications Developer job openings in the United States as of June 2026, with employment types broken down into 20% Full Time, 20% Temporary, and 60% Contract. Highlights an 80% In-person, and 20% Hybrid job distribution, with an average salary of $101,800 per year, or $48.9 per hour.

Mainframe DB2 Developer

Prophecy Technologies

Columbus, OH โ€ข On-site

$47.25 - $60.75/hr

Full-time

Posted 26 days ago


Job description

Role Name: Mainframe DB2 Developer
Location: Columbus, OH (100% Onsite from Day 1)
Experience: 10+ Years
Roles & Responsibilities:
  • Design, develop, enhance, and maintain mainframe applications using COBOL, JCL, and DB2.
  • Perform DB2 application development including SQL coding, stored procedures, and database interactions.
  • Optimize, tune, and debug complex mainframe applications for performance and reliability.
  • Analyze business and technical requirements and translate them into scalable mainframe solutions.
  • Support production cycles, resolve incidents, perform impact analysis, and root cause analysis.
  • Work closely with system analysts, QA teams, and stakeholders for end-to-end delivery.
  • Develop batch and online programs using Enterprise COBOL on System Z.
  • Create and maintain JCL scripts to manage batch processes.
  • Participate in code reviews, testing cycles, and deployment activities.
  • Ensure compliance with coding standards, security requirements, and documentation best practices.

Competencies:
  • Strong analytical and problem-solving skills
  • Deep expertise in mainframe DB2 application development
  • Ability to troubleshoot complex mainframe issues quickly
  • Strong understanding of mainframe architecture and job processing
  • Excellent communication and teamwork skills
  • Ability to work onsite in a fast-paced environment

Required Technical Skills:
  • Mainframe DB2 - Application Development
  • System Z - Enterprise COBOL
  • System Z - JCL
  • Strong SQL, stored procedures, and performance tuning
  • Debugging tools and mainframe utilities (File-Aid, Abend-Aid, etc.)
  • Experience with batch and online processing

Must-Have Qualifications:
  • 10+ years of hands-on experience in mainframe development
  • Strong expertise in COBOL, JCL, and DB2
  • Proven experience in System Z - Enterprise COBOL
  • Ability to work 100% onsite from Day 1 in Columbus, OH
  • Experience supporting large-scale mainframe applications