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

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 ...

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 ...

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 ...

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

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

Showing results 21-40

Senior Mainframe Developer information

See Lombard, IL salary details

$37

$56

$65

How much do senior mainframe developer jobs pay per hour?

As of Aug 21, 2026, the average hourly pay for senior mainframe developer in Lombard, IL is $56.73, according to ZipRecruiter salary data. Most workers in this role earn between $53.22 and $61.97 per hour, depending on experience, location, and employer.

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 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 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 job categories do people searching Senior Mainframe Developer jobs in Lombard, IL look for?

The top searched job categories for Senior Mainframe Developer jobs in Lombard, IL are:

What cities near Lombard, IL are hiring for Senior Mainframe Developer jobs?

Cities near Lombard, IL with the most Senior Mainframe Developer job openings:

Infographic showing various Senior Mainframe Developer job openings in Lombard, IL as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $118,007 per year, or $56.7 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 4 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.