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Ibm Mainframe Developer Jobs in Illinois (NOW HIRING)

Infojini Inc

Cobol Developer

Springfield, IL · On-site

$49.75 - $67.50/hr

Environment and tools are IBM Mainframe platform, z/OS operating system, TSO/ISPF and DB2. * Strong ... An experienced developer with mainframe/COBOL experience to work in business application ...

Infojini Inc

Cobol Developer

Springfield, IL · On-site

$49.75 - $67.50/hr

An experienced developer with mainframe/COBOL experience to work in business application ... Environment and tools are IBM Mainframe platform, z/OS operating system, TSO/ISPF and DB2. * Strong ...

Atria Group LLC

Mainframe/Cobol developer

Bloomington, IL

$47 - $60.50/hr

Mainframe/Cobol developer * Resource needed with industry knowledge/experience of IBM's Rational Asset Analyzer (RAA) tool. * Preferable, but not mandatory is additional knowledge/experience of ...

Broadcom

R&D Software Engineer

Lisle, IL · On-site

Required : • At least 8+ years of experience testing modern large-scale software and complex test configurations • Has mastered the basics of operating as a developer in the IBM mainframe ...

Archer Daniels Midland

$59K - $79K/yr

This position works closely with warehouse leadership, ERP teams, developers, and support teams to ... Support integration between WMS and IBM mainframe system, and automation * Monitor production ...

Accenture

Mainframe Specialist

Chicago, IL · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ... Certifications in mainframe technologies (e.g., IBM Certified) and project management (e.g., PMP ...

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How much do ibm mainframe developer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for ibm mainframe developer in Illinois is $50.47, according to ZipRecruiter salary data. Most workers in this role earn between $47.74 and $54.28 per hour, depending on experience, location, and employer.

What is an IBM mainframe developer?

An IBM Mainframe Developer is responsible for designing, developing, maintaining, and troubleshooting applications that run on IBM mainframe systems. They typically work with programming languages like COBOL, JCL, and SQL, and use tools such as CICS and DB2 to manage transactions and databases. Their role is critical in industries like banking, insurance, and government, where mainframes handle large-scale, high-volume processing. IBM Mainframe Developers ensure system reliability, performance, and security while also modernizing legacy systems to meet evolving business needs.

What are some common challenges IBM mainframe developers face and how are they addressed on the job?

IBM Mainframe Developers often encounter challenges such as integrating legacy mainframe applications with modern technologies and troubleshooting complex, mission-critical systems. Addressing these challenges typically involves working closely with system architects, business analysts, and other IT professionals to understand requirements and minimize downtime. Many organizations provide ongoing training and mentorship to help developers keep their skills current and solve unique technical problems. Proactive communication, strong documentation practices, and a problem-solving mindset are key to successfully navigating these hurdles. As a result, developers can expect a dynamic, team-oriented environment where continuous learning is encouraged.

What are the key skills and qualifications needed to thrive in the IBM mainframe developer position, and why are they important?

To thrive as an IBM Mainframe Developer, you need a strong background in COBOL, JCL, DB2, and CICS, typically supported by a relevant degree in computer science or a related field. Proficiency with mainframe tools such as IBM z/OS, TSO/ISPF, and knowledge of version control and debugging utilities is highly valued, with certifications like IBM Certified System Programmer being a plus. Strong analytical thinking, attention to detail, and communication skills help developers efficiently resolve complex issues and collaborate with cross-functional teams. These abilities are crucial to maintaining critical legacy systems, ensuring data integrity, and supporting organizational operations.

Is IBM Mainframe Developer a good career?

IBM Mainframe Developer is a specialized role involving maintaining and developing applications on mainframe systems using languages like COBOL and JCL. It offers stable employment, competitive salaries, and opportunities for advancement in industries such as finance and government that rely on mainframe technology. Knowledge of mainframe tools, certifications, and evolving skills can enhance career prospects in this field.

Is IBM mainframe developer still in demand?

IBM mainframe developers are still in demand due to the continued reliance of large enterprises on mainframe systems for critical operations. Skills in COBOL, JCL, and mainframe security are valuable, and many organizations seek experienced developers to maintain and modernize legacy systems, ensuring steady job opportunities in this field.

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Ibm Mainframe Developer jobs near you
Infographic showing various Ibm Mainframe Developer job openings in Illinois as of August 2026, with employment types broken down into 44% Full Time, and 56% Contract. Highlights an 100% In-person job distribution, with an average salary of $104,977 per year, or $50.5 per hour.

Custody API & Mainframe Modernization Specialist

Beta-Search, Inc

Chicago, IL • On-site

$50.50 - $65/hr

Other

Posted 9 days ago

Job description

Overview The company is supporting a strategic modernization initiative for one of the world's leading global custodians. The program's objective is to stabilize and modernize a legacy custody accounting platform while preparing for its eventual migration to Finbourne. We are seeking a Custody API & Mainframe Modernization Specialist who combines deep experience with legacy IBM mainframe technologies and modern API architecture. This individual will play a critical role in exposing legacy custody functionality through secure, scalable services while preserving business functionality throughout the modernization journey. This consultant will become part of the initial anchor team responsible for establishing the foundation of a multi-year transformation program. Responsibilities Design API strategies that expose legacy custody accounting functionality. Develop integration approaches between IBM mainframe applications and modern cloud architectures. Analyze existing COBOL, CICS, DB2, VSAM, and batch processing workflows to identify modernization opportunities. Partner with architecture, infrastructure, and business teams to define service-based integration patterns. Support incremental modernization while minimizing operational risk. Design secure RESTful APIs and event-driven services. Participate in application decomposition and modernization planning. Produce technical documentation and integration standards. Support production implementations and issue resolution. Mentor development teams on legacy modernization best practices.

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