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Overnight Remote Mainframe Developer Jobs in Illinois

YO AI Labs

COBOL Developer - Remote

Chicago, IL · Remote

$100 - $150/hr

COBOL Developer - Remote Role Type: Contractor Location: Remote Role Overview We are seeking ... In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy ...

New

DSNSearch

CICS/MQ Systems Programmer

Chicago, IL · Remote

$56.75 - $72/hr

CICS /MQ MAINFRAME SYSTEMS PROGRAMMER CICS ~~ MQ ~~ Z/OS MAINFRAME SYSTEMS ~~ SMP/E ~~ JES 2 ~~ CICSPLEX ~~ INFRASTRUCTURE REMOTE !!~~ REMOTE!! ~~~~FULL TIME WITH BENEFITS/ANNUAL BONUS OPPORTUNITY~

Munich Re

Principal Account Engineer

Chicago, IL · On-site +1

USA, Remote Chemical - Principal Account Engineer - Remote Work HSB is offering an exciting ... Ability to travel, including ~30 overnight stays per year. In addition to a competitive salary ...

KEYENCE

Field Application Engineer '27

Chicago, IL · On-site +1

$53K - $80K/yr

Provide on-call, on-site and remote technical support, training, and troubleshooting * Travel ... Willingness to travel (60-100%), including overnight * Valid driver's license and personal vehicle

IMEG

Revit API Software Engineer | New York, NY

Macomb, IL · On-site +1

$90K - $130K/yr

Up to 10% Work Schedule: Full-time hybrid/Remote Sponsorship: Not available What You'll Do * Assist ... Ability to travel up to 10% with occasional overnight stays Preferred * Proficiency in Jira & Git a ...

IMEG

Revit API Software Engineer | New York, NY

Peoria, IL · On-site +1

$90K - $130K/yr

Up to 10% Work Schedule: Full-time hybrid/Remote Sponsorship: Not available What You'll Do * Assist ... Ability to travel up to 10% with occasional overnight stays Preferred * Proficiency in Jira & Git a ...

CEI Services

Electrical Engineering Manager

Rockford, IL · On-site +1

$110K - $141K/yr

This position can be remote with travel or hybrid based in our Rockford, IL office with up to 50 ... When overnight travel is required, meals and lodging will also be provided. Company Overview With ...

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Overnight Remote Mainframe Developer information

What is an overnight remote mainframe developer?

An Overnight Remote Mainframe Developer is a software professional who specializes in maintaining, updating, and troubleshooting mainframe systems during overnight hours, typically from a remote location. Mainframes are large, powerful computers used by organizations for critical applications, such as bulk data processing or enterprise resource planning. Working overnight ensures that essential maintenance and updates can occur with minimal disruption to daytime business operations. Remote work allows these developers to perform their duties from anywhere, using secure access to the organization's mainframe systems.

What are the key skills and qualifications needed to thrive as an overnight remote mainframe developer?

To thrive as an Overnight Remote Mainframe Developer, you need expertise in mainframe programming languages (like COBOL, JCL, or PL/I), experience with legacy systems, and often a degree in computer science or a related field. Familiarity with mainframe tools such as IBM z/OS, TSO/ISPF, and database systems like DB2, as well as knowledge of version control systems, is typically required. Strong problem-solving abilities, attention to detail, and effective remote communication skills help you excel in this role. These skills ensure reliable operation and maintenance of critical legacy systems during off-hours, minimizing downtime and supporting continuous business operations.

What are some common challenges faced by overnight remote mainframe developers, and how can they be managed effectively?

Overnight remote mainframe developers often encounter challenges such as limited real-time support from colleagues, managing critical system updates during off-hours, and maintaining clear communication with daytime teams. To manage these challenges effectively, it's important to establish robust documentation practices, use collaboration tools for handovers, and proactively communicate any issues or changes. Additionally, creating a structured work routine and setting clear boundaries can help maintain work-life balance despite the unconventional hours.

What is the difference between Overnight Remote Mainframe Developer vs Overnight Remote COBOL Programmer?

AspectOvernight Remote Mainframe DeveloperOvernight Remote COBOL Programmer
CredentialsMainframe certifications, programming skillsCOBOL certifications, programming skills
Work EnvironmentRemote, mainframe systemsRemote, mainframe systems
Industry UsageFinancial, insurance, governmentFinancial, insurance, government
Job FocusDeveloping and maintaining mainframe applicationsWriting and debugging COBOL code

Both roles involve working remotely on mainframe systems within similar industries. The main difference is that the Mainframe Developer focuses on developing and maintaining applications, while the COBOL Programmer specializes in coding and debugging COBOL programs. Candidates should have relevant certifications and experience in mainframe environments for both roles.

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

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

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

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

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

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

Overnight Remote Mainframe Developer jobs near you
Infographic showing various Overnight Remote Mainframe Developer job openings in Illinois as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% Remote job distribution.

COBOL Developer - Remote

Chicago, IL • Remote

YO AI Labs
See more jobs at YO AI Labsexternal

$100 - $150/hr

Full-time

Posted 3 days ago

New

Job description

COBOL Developer – Remote

Role Type: Contractor
Location: Remote

Role Overview

We are seeking experienced COBOL Developers to contribute their expertise to a high-impact customer project focused on training and improving next-generation AI systems. In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy systems to evaluate technical content, document business logic, and provide expert feedback.

No prior AI experience is required—your COBOL and mainframe expertise is what matters most.

Key Responsibilities
  • Analyze and interpret existing COBOL codebases, workflows, and business logic.
  • Develop clear and accurate documentation of COBOL programs, system processes, and technical requirements.
  • Review and evaluate COBOL code, pseudocode, and project scenarios for accuracy and completeness.
  • Identify edge cases, ambiguities, potential defects, and areas requiring clarification.
  • Annotate COBOL scripts and technical content to support the development of high-quality AI training datasets.
  • Design and review test cases and scenarios representing real-world COBOL and mainframe applications.
  • Provide expert guidance on legacy system architecture, integrations, and dependencies.
  • Collaborate with project coordinators and technical experts through clear written and verbal communication.
  • Ensure all submitted technical materials meet high standards of accuracy, consistency, and completeness.
  • Support projects involving legacy-system modernization, migration, integration, or transformation where applicable.
Required Qualifications
  • Proven professional experience as a COBOL Developer or Mainframe Developer.
  • Strong proficiency in COBOL programming and legacy application environments.
  • Experience working with mainframe systems and related technologies.
  • Strong understanding of complex legacy codebases, business rules, and system workflows.
  • Excellent analytical and problem-solving skills.
  • Ability to explain complex technical concepts clearly and accurately.
  • Strong technical writing and documentation skills.
  • Exceptional attention to detail.
  • Ability to work independently and manage multiple deliverables in a remote environment.
Preferred Qualifications
  • Experience with large-scale mainframe migration, modernization, or integration projects.
  • Familiarity with JCL, DB2, CICS, VSAM, or other common mainframe technologies.
  • Experience reviewing or documenting legacy enterprise applications.
  • Experience creating technical test scenarios or validating business logic.
  • Experience working with distributed or remote technical teams.
  • Prior experience contributing domain expertise to AI, data, or machine-learning projects is a plus, but not required.
Skills
  • COBOL
  • Mainframe Development
  • Legacy Systems
  • JCL
  • DB2
  • CICS
  • VSAM
  • Code Analysis
  • Technical Documentation
  • Business Logic Analysis
  • Test Case Design
  • Problem Solving
  • Attention to Detail
  • Technical Communication
  • Remote Collaboration