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Senior Mainframe Developer Jobs in Chicago, IL (NOW HIRING)

Broadcom

Support Engineer - Mainframe

Lisle, IL · On-site

Engineers are expected to deliver a superior customer experience by exhibiting our core principles ... A senior level professional role. Evaluation, originality or ingenuity required. Knows and applies ...

Broadcom

R&D SW Engineer

Lisle, IL

We are looking for a seasoned Software Engineer who has navigated complex production mainframe environments and is ready to contribute meaningfully from day one. This is a senior individual ...

Broadcom

Senior-level Technical Writer

Lisle, IL

Mainframe systems are at the heart of the digital economy, with 80% of the world's structured ... programming concepts, and source control. Key Responsibilities Content Creation and Management ...

Info-Ways

Hadoop Developer

Riverwoods, IL · On-site

The Senior/Lead Hadoop Developer is responsible for designing, developing, testing, tuning and ... systems/mainframe and vice-versa. 3+ years' experience in Importing and exporting the data using ...

Infosys

Mainframe Modernization Program Lead

Chicago, IL · On-site

$101K - $132K/yr

... senior level client stakeholders • Strong leadership abilities to foster team performance and ... program management, DevOps practices • Drive end-to-end transformation of legacy mainframe ...

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Senior Mainframe Developer information

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How much do senior mainframe developer jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for senior mainframe developer in Chicago, IL is $59.44, according to ZipRecruiter salary data. Most workers in this role earn between $55.77 and $64.95 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.
What are the most commonly searched types of Mainframe Developer jobs in Chicago, IL? The most popular types of Mainframe Developer jobs in Chicago, IL are:
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What job categories do people searching Senior Mainframe Developer jobs in Chicago, IL look for? The top searched job categories for Senior Mainframe Developer jobs in Chicago, IL are:
What cities near Chicago, IL are hiring for Senior Mainframe Developer jobs? Cities near Chicago, IL with the most Senior Mainframe Developer job openings:
Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Chicago, IL as of August 2026, with employment types broken down into 81% Full Time, 5% Part Time, and 14% Contract. Highlights an 82% Physical, 6% Hybrid, and 12% Remote job distribution, with an average salary of $123,629 per year, or $59.4 per hour.

W2 Only || UI Path Certified RPA Developer - Remote (IL/TX Only) UiPath Certification Must

Noblesoft Technologies

Chicago, IL • On-site

Contractor

Re-posted 24 days ago

Job description

W2 Contract Only
Job Title: Sr RPA Developer
Location: Naperville, Chicago, IL and Dallas, TX
Remote (Y/N): Yes, but local candidates are highly preferred
Duration: 12 Month 
Job Description: This position is responsible for developing, integrating, testing, and maintaining existing and new applications; knowing one or more programming languages; knowing one or more development methodologies / delivery models. To be successful in this role, a person would have strong experience with Big Data / Hadoop / Spark development. 
 
Required Job Qualifications:  
•    Bachelor Degree and 4 years Information Technology experience OR Technical Certification and/or College Courses and 6 year Information Technology experience OR 8 years Information Technology experience.
•    Possess ability to manage workload, manage multiple priorities, and manage conflicts with customers/employees/managers, as applicable.
•    Experience in traditional app languages (Java / Scala / C++).
•    Experience in scripting languages (BASH / PYTHON). 
•    Experience in cloud computing technologies (SaaS / IaaS / PaaS)
•    Experience in application configuration.
•    SDLC Methodology (Agile / Scrum / Iterative Development).  
•    System performance management.
•    Systems change / configuration management.
•    Business requirements management.
•    Problem solving /analytical thinking.
•    Creative thinking.
•    Ability to execute.
•    Travel availability up to 20%
 
Preferred Job Qualifications: 
•    At least 4 years of experience with UIPath OR 3 years of experience with other RPA platform(s) (Automation Anywhere, Blue Prism, etc.)
•    At least 3 years of experience in several areas of RPA (Desktop Applications, Web Applications, Citrix Environments, Salesforce, Excel, Mainframe and/or Legacy Systems)
•    Previous hands-on experience with at least one high level programming language (.Net, Java, VB, C#/C, HTML/CSS, Python, Web Services, Mainframe, Web Applications, SQL, Data Integration Tools, Technical Automation Tools)
•    Experience with Test Driven Development (TDD) and Behavior Driven Development (BDD) 
•    Strong CICD and DevOps (“shift left”) mindset
•    UiPath Advanced Certification
•    Lead Engineer qualities to provide driven results to product teams and capabilities to guide new and junior team members.