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Freelance Mainframe Applications Developer Jobs (NOW HIRING)

MainFrame Engineer

Murphy, TX · 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 ...

Mainframe Developer

Atlanta, GA · 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 Developer

Morristown, NJ · On-site

$50.50 - $65/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 ...

Globality Bid - Mainframe Developer - Remote

$50.25 - $64.50/hr

Conduct comprehensive code reviews of mainframe applications to ensure quality and adherence to standards. * Perform reverse engineering to identify data sources and understand the flow of data ...

Mainframe Developer

Richmond, VA · On-site

$48.50 - $62.25/hr

Mainframe Developer Design, develop, enhance, and support mainframe applications, ensuring stability and performance of legacy systems that support critical business functions. • Perform ...

Senior Mainframe Developer We are seeking a Senior Mainframe Developer with strong expertise in ... Design, develop, test, and maintain COBOL-based applications * Develop and manage JCL jobs ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Minimum seven years of mainframe applications development and production support work experience ... Expert knowledge on mainframe programming languages and technologies namely COBOL, DB2, JCL, CICS ...

Role: Senior Mainframe Developer Location: Westlake, TX (Onsite) Type: Contract-to-Hire (CTH) Job ... Develop, automate, and support mainframe applications using COBOL, CICS, DB2, JCL, VSAM, MQ-Series ...

Mainframe Developer

Lisle, IL · On-site

$48.25 - $62.25/hr

The ideal candidate will have hands-on experience in developing, maintaining, enhancing, and supporting enterprise mainframe applications. The candidate should possess strong programming skills in ...

SYSTEMTEC is seeking a Senior Mainframe Developer for a hybrid opportunity for candidates in ... Strong hands-on experience developing applications within enterprise mainframe environments.

New

Mainframe Developer

Frankfort, KY · On-site

$42.50 - $54.75/hr

Mainframe Developer Design, develop, enhance, and support mainframe applications, ensuring stability and performance of legacy systems that support critical business functions. • Perform ...

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Freelance Mainframe Applications Developer information

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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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What cities are hiring for Freelance Mainframe Applications Developer jobs? Cities with the most Freelance Mainframe Applications Developer job openings:
What are the most commonly searched types of Mainframe Applications Developer jobs? The most popular types of Mainframe Applications Developer jobs are:
What states have the most Freelance Mainframe Applications Developer jobs? States with the most job openings for Freelance Mainframe Applications Developer jobs include:
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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 Engineer

Procyon TS

Murphy, TX • On-site

$46.75 - $60.25/hr

Other

Posted 23 days ago


Job description

Job Overview:
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 candidate will have hands-on experience in analyzing complex systems, modernizing legacy components, and integrating with distributed or cloud-based systems.
Key Responsibilities:
  • Design, develop, test, and deploy mainframe-based applications using COBOL, JCL, DB2, and CICS.
  • Analyze existing systems and recommend improvements or modernization strategies.
  • Work closely with business analysts and cross-functional teams to gather requirements and deliver solutions.
  • Debug and resolve production issues in a timely manner.
  • Optimize code performance and database access for better efficiency.
  • Participate in code reviews, unit testing, and integration testing.
  • Create and maintain technical documentation for all mainframe processes and applications.
  • Collaborate with DevOps and cloud teams for integration or migration of mainframe applications.
Required Skills & Experience:
  • 5+ years of hands-on experience in Mainframe application development.
  • Strong proficiency in:
    • COBOL (batch and online)
    • JCL (Job Control Language)
    • DB2 / IMS DB
    • CICS (for online transaction processing)
    • VSAM (for file management)
  • Understanding of software development lifecycle (SDLC) and Agile methodologies.
  • Strong analytical and debugging skills.
  • Excellent communication and documentation skills.
Preferred / Nice-to-Have Skills:
  • Experience in Mainframe modernization or API integration with distributed systems.
  • Exposure to DevOps tools and CI/CD pipelines for mainframe environments.
  • Experience in financial services, banking, or insurance domain.
Education:
  • Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.