1

Freelance Mainframe Applications Developer Jobs in Chicago, IL

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 ...

... of changes across applications Incident Management & Troubleshooting Expertise in root cause ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

... of changes across applications Incident Management & Troubleshooting Expertise in root cause ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

... mainframe health claims applications. * Develop, test, and deploy code changes for claims ... Engineering as a Service provides complete design, implementation, and technology operations ...

... on mainframe applications developed via CoolGen and document business rules Strong experience in Mainframe technologies COBOL JCL DB2 CICS Perform reverse engineering impact analysis for ...

... on mainframe applications developed via CoolGen and document business rules Strong experience in Mainframe technologies COBOL JCL DB2 CICS Perform reverse engineering impact analysis for ...

... mainframe health claims applications. * Develop, test, and deploy code changes for claims ... Engineering as a Service provides complete design, implementation, and technology operations ...

Mainframe Developer

Chicago, IL ยท On-site

$90K - $96K/yr

Design/Develop/Support Health Applications using Mainframe technologies * Should have experience of ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

next page

Showing results 1-20

Freelance Mainframe Applications Developer information

See Chicago, IL salary details

$10

$50

$68

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

As of Jul 28, 2026, the average hourly pay for freelance mainframe applications developer in Chicago, IL is $50.42, according to ZipRecruiter salary data. Most workers in this role earn between $44.81 and $58.70 per hour, depending on experience, location, and employer.
What are the most commonly searched types of Mainframe Applications Developer jobs in Chicago, IL? The most popular types of Mainframe Applications Developer jobs in Chicago, IL are:
What are popular job titles related to Freelance Mainframe Applications Developer jobs in Chicago, IL? For Freelance Mainframe Applications Developer jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Freelance Mainframe Applications Developer jobs in Chicago, IL look for? The top searched job categories for Freelance Mainframe Applications Developer jobs in Chicago, IL are:
Infographic showing various Freelance Mainframe Applications Developer job openings in Chicago, IL as of July 2026, with employment types broken down into 48% Full Time, 7% Part Time, 4% Temporary, and 41% Contract. Highlights an 77% In-person, and 23% Remote job distribution, with an average salary of $104,868 per year, or $50.4 per hour.

L2 Application Support Engineer - Mainframe

Saransh Inc

Chicago, IL โ€ข On-site

Contractor

Posted 13 days ago


Job description

Job title: L2 Application Support Engineer - Mainframe
Location:ย Chicago, IL
Contract
ย 
Candidate should be in client office 3 days a week and with an option to extend all 5 days a week at client discretion.
ย 
Skill Metrics:
DB2
Cobol
VSAM
JCL
Mainframe Systems

Job Description:
  • The role is an IT Support Analyst responsible for L2 production support for Fund Accounting and US Transfer Agency applications.
  • The position requires strong mainframe skills (JCL, COBOL, DB2, VSAM) and the ability to troubleshoot issues across multiple technologies.
  • The analyst will work closely with global teams, business partners, and upstream/downstream systems, handling incident management, root-cause analysis, and on-call support.
  • The job requires 8โ€“10+ years of technical experience in a financial environment, strong communication skills, and the ability to operate in a fast-paced, multi-tasking environment.
  • The role is Chicago-based, with at least 3 days per week onsite and occasional night/weekend support.

Mandatory skills:
Mainframe skills (COBOL,JCL,DB2,VSAM), Troubleshooting Analytical
Experience required: 8-10 years