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Java Mainframe Developer Jobs in Illinois (NOW HIRING)

Sonoma Consulting Inc.

Mainframe EDI Developer

Glenview, IL

$48.25 - $62.25/hr

... JAVA a plus Knowledge of FTP and AS2 communications is a plus Additional Information Keywords: Mainframe, EDI, Cobol, Sterling Integrator, GIS, B2BI, DB2, SQL Similar Titles: EDI Mainframe Developer ...

360 IT Professionals

Java/J2EE Architect

Chicago, IL · On-site

$65 - $87.50/hr

... between mainframe application systems and various IBM and Microsoft Server Operation Systems ... Developer, Clear Case, Clear Quest); DB2 on z/OS and AIX * Detailed knowledge of analysis ...

Broadcom

Java Engineer - REST APIs & Database Systems

Lisle, IL · On-site

$51 - $70/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Broadcom's Mainframe Software Division (MSD) is looking for a talented, motivated, and experienced ... We are looking for an engineer who is highly motivated, team oriented, and has excellent ...

Capgemini

z/OS Connect API Engineer

Chicago, IL · On-site

$73K - $174K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Your role The z/OS Connect API Engineer is responsible for modernizing enterprise mainframe ... Java Development * Spring Boot * OAuth 2.0 and OpenID Connect (OIDC) * Enterprise Integration ...

IMR Soft LLC

Smart COMM Developer

Peoria, IL · On-site

Experience in scripting or programming languages (Java, shell script, Cobol, .net) * Good debugging ... Mainframe/Unix experience * Change Management experience

TEKsystems

AI Machine Learning Engineer

Bloomington, IL · Remote

$50 - $70/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... mainframe and Micro Focus COBOL ecosystems. They will support and enhance existing AI-driven ... Java APIs. This person will be mentoring and training on the AI strategy in this area for all of ...

Deutsche Bank

Assistant Vice President

Cary, IL · On-site

$140K - $165K/yr

... Java, XML, HTML, Selenium, BDD, Jenkins, Karate, Postman, DB Visualizer, SQL Developer, Git, Bit Bucket, Microsoft Office Mainframe, KTS, MDM, Hue, Putty, Hadoop. Salary range: $140,000.00 - $165,000 ...

Hi-Tech Solutions

Sr. Technical IT Recruiter

Oak Brook, IL · On-site

  • Medical

  • Dental

  • Retirement

  • PTO

... Mainframe development, Java Development, Quality assurance testing, Unix system administration, Network engineering, Help desk and PC support Qualifications Desired Skills and Experience 3+ years or ...

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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 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 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 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.

Mainframe EDI Developer

Sonoma Consulting Inc.

Glenview, IL

$48.25 - $62.25/hr

Contractor

Re-posted 13 days ago

Job description

Company Description

Sonoma Consulting is one of the fastest growing Global IT Consulting and Executive Search providers with offices in Naperville IL; Chicago IL; Tyson's Corner VA and Hyderabad India. 

Our clients range from start-ups to Fortune 500 companies throughout the world. We look to our large recruiting team to continue to build upon the high standards we have set and ways to continually improve our recruiting process around the speed and quality of the resources we deliver. The Sonoma team prides itself on best model for delivery of IT Resources in a 24/7 model, our high level of professionalism and integrity which enables us to create long-term, meaningful relationships with our clients. 

Job Description

Key Job Responsibilities:

Participate in translating business and customer requirements into well researched and designed custom applications or existing software modifications with legacy and new systems

Work on troubleshooting problems as well as recommend / implement effective solutions

Document testing and maintenance of system changes

On-call support responsibilities

Requirements:

Working knowledge of EDI documents and hands-on mapping experience a plus

Experience with Sterling Integrator (GIS/B2BI) mapping tool is a plus

Proficient in Mainframe COBOL

Proficient in DB2 / SQL

MVS and JCL

TSO / ISPF

Good verbal and written communication

Experience writing technical specifications and developing test plans

Must have experience and working knowledge of software development life-cycle

Good troubleshooting skills

Ability to work in team environment as well as individually

Familiarity with INSYNC, Xpeditor, CICS, SDSF, IMS and SCLM preferred

Knowledge of XML structures, EDIFACT standards and JAVA a plus

Knowledge of FTP and AS2 communications is a plus

Additional Information

Keywords: Mainframe, EDI, Cobol, Sterling Integrator, GIS, B2BI, DB2, SQL
Similar Titles: EDI Mainframe Developer, Mainframe Programmer, EDI Developer, EDI Analyst,



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About Sonoma Consult

Sourced by ZipRecruiter

Sonoma Consult is a California based C corporation helping companies bring products to the patient by working closely with the engineering teams and the clinicians. Our goal, no matter what stage of product development, is to create and execute a plan of action to move the product through the appropriate clinical and regulatory steps. Sonoma Consult works cohesively with the engineers and physicians to translate technologies to the clinic. Our goal is to help you get the very best product to the clinic and to the market. This includes planning, execution and ensuring critical data is delivered in the right format to ensure the feedback loop to the design team ultimately delivers the most advanced technology to the patient.

Industry

Business management consulting

Company size

1 - 10 Employees

Headquarters location

Sonoma, CA, US

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