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Java Mainframe Developer Jobs in Illinois (NOW HIRING)

United Airlines, Inc.

Manager - Quality

Chicago, IL · On-site

Programming: Java, Selenium and SQL * Must be legally authorized to work in the United States for ... Understanding of cloud, distributed, microservice, mainframe and desk top based technology (AWS ...

Transunion

Lead Data Scientist

Chicago, IL · On-site

$100K - $160K/yr

  • Medical

  • Dental

  • Vision

  • PTO

... Linux, PC, and mainframe computing platforms. * You will deliver analytic insights and ... other programming and data manipulation languages (SQL, Hive, Pig, Python, C/C++, Java ...

Trans Union LLC

Lead Data Scientist

Chicago, IL · On-site

$100K - $160K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... Linux, PC, and mainframe computing platforms. * You will deliver analytic insights and ... other programming and data manipulation languages (SQL, Hive, Pig, Python, C/C++, Java ...

TransUnion

Lead Data Scientist

Chicago, IL · On-site

$100K - $160K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... Linux, PC, and mainframe computing platforms. * You will deliver analytic insights and ... other programming and data manipulation languages (SQL, Hive, Pig, Python, C/C++, Java ...

TransUnion

Lead Data Scientist

Chicago, IL · On-site

$100K - $160K/yr

  • Medical

  • Dental

  • Vision

  • PTO

... Linux, PC, and mainframe computing platforms. * You will deliver analytic insights and ... other programming and data manipulation languages (SQL, Hive, Pig, Python, C/C++, Java ...

慨正橡扯

Lead Data Scientist

Chicago, IL · On-site

$100 - $160/hr

  • Medical

  • Dental

  • Vision

  • PTO

... Linux, PC, and mainframe computing platforms. * You will deliver analytic insights and ... other programming and data manipulation languages (SQL, Hive, Pig, Python, C/C++, Java ...

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Java Mainframe Developer information

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How much do java mainframe developer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for java mainframe developer in Illinois is $51.72, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $58.70 per hour, depending on experience, location, and employer.

What are some typical daily responsibilities for a Java Mainframe Developer?

A Java Mainframe Developer typically spends their day designing and coding Java applications that interface with mainframe systems, often working with legacy code in languages like COBOL. They are responsible for troubleshooting and debugging issues, performing system integrations, and ensuring data flows correctly between distributed systems and the mainframe. Collaboration with business analysts, QA testers, and infrastructure teams is common to gather requirements and ensure smooth deployments. Additionally, they may participate in code reviews, document technical solutions, and support ongoing modernization efforts. This diverse set of tasks creates a dynamic work environment with opportunities to learn and grow technically.

What are the key skills and qualifications needed to thrive in the Java Mainframe Developer position, and why are they important?

To thrive as a Java Mainframe Developer, you need a strong background in Java programming, mainframe technologies (such as COBOL, JCL, and CICS), and experience with database systems like DB2. Familiarity with version control tools, middleware, and frameworks used for modernization—plus certifications like Oracle Java Programmer or IBM Mainframe—are often essential. Strong problem-solving skills, effective communication, and the ability to collaborate with cross-functional teams set standout candidates apart. These skills ensure successful integration of modern applications with legacy systems, seamless project delivery, and efficient teamwork in complex enterprise environments.

What is a Java Mainframe Developer?

A Java Mainframe Developer is responsible for developing, maintaining, and optimizing applications that run on mainframe systems using Java and related technologies. They often work with legacy systems, integrating Java-based applications with COBOL, DB2, CICS, or other mainframe technologies. Their role includes enhancing system performance, troubleshooting issues, and ensuring seamless communication between modern and legacy systems. They may also work on migration projects, moving applications from mainframes to cloud or distributed environments.

What are the most commonly searched types of Java Mainframe Developer jobs in Illinois?

The most popular types of Java Mainframe Developer jobs in Illinois are:

What are popular job titles related to Java Mainframe Developer jobs in Illinois?

For Java Mainframe Developer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Java Mainframe Developer jobs in Illinois look for?

The top searched job categories for Java Mainframe Developer jobs in Illinois are:

Java Mainframe Developer jobs near you
Infographic showing various Java Mainframe Developer job openings in Illinois as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $107,587 per year, or $51.7 per hour.

Technical Lead /Architect - Enterprise Systems & Integrations @ IL(Hybrid) on C2C/W2 || suneetha@spr

Spruce Infotech

Lake Forest, IL • On-site

Contractor

Re-posted 21 days ago

Job description

This role serves as a senior technical delivery leader responsible for executing complex enterprise technology initiatives across enterprise applications, integration platforms, cloud technologies, automation solutions, and business-critical systems. The ideal candidate combines strong technical depth with proven technical solution delivery experience, enabling them to solve business problems in a complex technical environment, validate technical solutions, and drive successful execution of technology initiatives. This position requires the ability to operate both strategically and tactically while ensuring projects remain aligned with architecture standards and business objectives. Applicants must have impeccable communication abilities with experience presenting solutions and status reports to senior executives (SVP- and C-level suite).
Key Responsibilities
  • Lead technical execution of enterprise projects and strategic technology initiatives across applications, integrations, and shared technology platforms
  • Play a key role in delivery of large-scale technology projects including migrations, platform implementations, application transformations, and integration initiatives
  • Provide technical leadership across vendor-led delivery models, including onshore and offshore resources
  • Create, refine, and/or validate architecture alignment, technical designs, implementation approaches, testing strategies, and deployment plans for assigned projects within client's integration portfolio
  • Drive end-to-end project delivery lifecycle:
    • Technical inputs during Discovery & assessment
    • Leading voice in solution planning & design
    • Guide the building & implementation of solutions
    • Testing & validation
    • Production deployment & transition
  • Ensure alignment with enterprise architecture standards, delivery governance, risk management, and reporting requirements
  • Partner with engineering, architecture, cybersecurity, infrastructure, and business teams to deliver successful outcomes
  • Identify delivery risks, troubleshoot complex issues, and drive mitigation strategies
  • Establish repeatable delivery practices and implementation standards that improve execution across enterprise technology initiatives
  • Provide regular status reporting, stakeholder communications, and executive-level updates for assigned initiatives

Required Qualifications
  • 8+ years of experience in enterprise IT, systems integration, application delivery, or other technical IT delivery leadership
  • Proven success leading large-scale technology initiatives involving modernization, migration, integration, and platform transformation
  • Strong understanding of diverse technical platforms, delivery methodologies, architectural concepts and best practices, application development, and integration strategies.
  • Experience leading vendor-delivered initiatives and validating technical deliverables
  • Strong communication, stakeholder management, and executive presentation skills
    • Ability to articulate detailed technical concepts for non-technical audiences

Preferred Qualifications
  • Hands-on experience and architectural familiarity with as many of the following as possible:
    • Middleware and integration platforms (IBM ACE CP4I, APIs, messaging systems, GlobalScape DMZ/EFT)
    • Java-based applications and modern application architectures
      • WebSphere, Java application modernization, Azure containerization
      • UiPath automations
    • Cloud platforms (Azure preferred)
      • Azure containerization
      • AIX to Azure/Linux migration
      • Modernizing application architecture around cloud-native concepts
    • Database, repositories, and integration platforms
      • IBM DB2, DataStage, ACE
      • Mainframe COBOL or other flat file legacy systems
    • Secure data exchange and EDI platforms (EDIFecs, file transfer systems)
    • Document & Communication (CCM) Platforms
      • xPression, OpenText Communications
      • xPresssion Compuset conversions
      • Opentext Execute360

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