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Freelance Mainframe Applications Developer Jobs (NOW HIRING)

Mainframe Applications Programmer Sacramento, CA Long-term The client hosts a number of critical enterprise applications on mainframe system including the Criminal Justice Information System (CJIS)

Mainframe Developer

Wayne, PA · On-site

$44.50 - $57/hr

Mainframe Developer Design, develop, test, and maintain mainframe applications using COBOL, CICS, JCL, and DB2. Collaborate with business analysts and stakeholders to gather requirements and ...

Mainframe Developer

Dallas, TX · On-site

$48.75 - $62.50/hr

Design, develop, and maintain mainframe applications using COBOL and other programming languages * Perform analysis, testing, debugging, and troubleshooting of mainframe software applications

Develop and maintain mainframe applications using cobol, db2, vsam, jcl, and cics technologies ... Proficiency in mainframe cobol, db2, vsam, jcl, and mainframe cics programming languages. * Strong ...

Mainframe Developer

Manhattan, NY · On-site

$54 - $69.50/hr

Job Summary We are looking for an experienced Mainframe Developer with strong COBOL and mainframe ... The candidate will help modernize and migrate legacy mainframe applications to distributed ...

Mainframe Developer II

Tampa, FL · On-site

$44.50 - $57.25/hr

Mainframe Developer We are seeking a Mainframe Developer with strong experience in COBOL, JCL, CICS ... Develop, test, and maintain mainframe applications. * Write and debug COBOL programs. * Create and ...

Mainframe Developer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

... mainframe applications while ensuring adherence to coding standards, best practices, and project ... Skill Requirements 1. Proficiency in mainframe cobol programming language. 2. Strong knowledge of ...

Mainframe Developer

Wayne, PA · On-site

$44.50 - $57/hr

Design, develop, test, and maintain mainframe applications using COBOL, CICS, JCL, and DB2 ... Perform code reviews and provide mentorship to junior developers. * Create and maintain ...

Mainframe Developer

New York, NY · On-site

$53.50 - $69/hr

Job Summary We are looking for an experienced Mainframe Developer with strong COBOL and mainframe ... The candidate will help modernize and migrate legacy mainframe applications to distributed ...

Mainframe Developer

Tampa, FL · On-site

$44.50 - $57.25/hr

We are seeking an experienced Mainframe Developer to design, develop, enhance, and support enterprise-scale mainframe applications. The role involves working closely with cross-functional teams to ...

Mainframe Developer

Omaha, NE · On-site

$46.75 - $60.25/hr

Contract Role Overview We are seeking a highly experienced Mainframe Developer to support, modernize, and maintain enterprise mainframe applications. This role involves hands-on development ...

Mainframe Developer

Columbia, SC · On-site

$40 - $51.50/hr

Mainframe Developer SYSTEMTEC is seeking a Mainframe Developer for a hybrid opportunity for ... Experience developing, maintaining, and supporting enterprise mainframe applications. * Hands-on ...

New

Mainframe Developer

Tampa, FL · On-site

$46.25 - $59.50/hr

We are seeking an experienced Mainframe Developer to design, develop, enhance, and support enterprise-scale mainframe applications. The role involves working closely with cross-functional teams to ...

Mainframe

Alpharetta, GA · On-site

$47.75 - $61.50/hr

... developers in designing, developing, and implementing mainframe applications. 2. Collaborate with stakeholders to gather requirements and provide technical expertise to propose solutions. 3. Perform ...

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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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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 Applications Developer

Resource Consultings Services Inc

Montgomery, AL • On-site

Full-time

Posted yesterday


Job description

Role: Mainframe Applications Developer

Location: Montgomery, Alabama

Duration: Full time


Position Description

  • Lead the design, development, testing, and implementation of Mainframe (COBOL, CICS, DB2, JCL) applications.
  • Having experience with TELON (COBOL Code generator) plus point.
  • Experience in developing Mainframe applications using COBOL, CICS, DB2, JCL and TELON.
  • Write Adhoc queries/SPUFI’s using DB2 SQL statements.
  • Maintain the existing applications/interface files and make the changes as per the user needs.
  • Must be able to work in a software development environment following SDLC of waterfall and Agile/scrum methodologies.
  • Meet with users, gather and analyze user needs and software requirements to determine feasibility of design.
  • Conduct unit testing and assist with integration testing.
  • Provides development status updates to the management on a regular basis.
  • Provides guidance on best practices for software development and ensures adherence to organization’s IT policies.
  • Responsible for writing stored procedures, Views, Functions, Triggers, DDL/DML queries.
  • Child Support Application experience is preferred.
  • Attend Production On-call

Must have Skills Required

  • COBOL, CICS, DB2, JCL, TSO
  • Excellent communication skills, both oral and written.
  • Ability to work independently, under pressure and self-motivated

Skills Preferred

  • Experience in working with  Financial Mainframe applications using COBOL, CICS, DB2, JCL,  and TSO
  • Experience using COBOL code generators such as TELON 
  • Child Support Application development and conversion experience is preferred.

Work Experience Required

•             Bachelor’s degree/Master’s degree with a minimum of 7 years’ experience in Mainframe applications

                                                                                                     (Or)

•             High School diploma or GED with a minimum of 10 years of experience in Mainframe applications.

Experience Preferred

  • Minimum of 8 – 10 years of Mainframe experience using COBOL, CICS, DB2, JCL,TSO
  • Experience in designing, developing and supporting complex mainframe applications.