Mainframe Developer (Senior)

Job title: Mainframe Developer (Senior)

Location: Chicago IL

Employment type: Full-time

Work Model: Hybrid 3 days onsite per week

Salary Range: annually

About the role

• Serve as a technical lead and subject matter expert for mainframe-based healthcare claims adjudication systems.
• Analyze design develop test and implement complex fixes enhancements and maintenance updates for claims-processing applications.
• Develop and maintain applications using COBOL DB2 VSAM JCL and CICS.
• Investigate and resolve critical production incidents application defects performance issues batch-processing failures and functional issues.
• Perform root cause analysis for recurring production issues and recommend sustainable corrective or preventive actions.
• Support mainframe system upgrades application enhancements releases and integration activities.
• Partner with business analysts product owners and operational stakeholders to translate healthcare claims requirements and regulatory updates into detailed technical designs and development solutions.
• Participate in code reviews and enforce established client coding security documentation and quality standards.
• Use mainframe debugging and analysis tools such as Xpediter File-AID and Abend-AID to diagnose and resolve complex issues.
• Collaborate with application development QA infrastructure database and production-support teams to ensure smooth integration and delivery.
• Create and maintain technical designs process documentation support procedures runbooks and knowledge-transfer materials.
• Mentor junior developers and provide technical guidance on mainframe development standards claims-processing logic debugging and production support.
• Support compliance requirements by maintaining accurate documentation traceability and appropriate controls for application changes.

• 69 years of hands-on mainframe application development experience.
• Strong development experience with:
  • COBOL.
  • DB2.
  • VSAM.
  • JCL.
  • CICS.
• Experience supporting enhancing and troubleshooting mainframe-based enterprise applications.
• Hands-on experience with mainframe debugging tools such as Xpediter File-AID Abend-AID or equivalent tools.
• Strong experience investigating production defects batch abends performance issues and application failures.
• Experience conducting root cause analysis and delivering permanent fixes for recurring issues.
• Knowledge of healthcare claims processing and claims adjudication workflows.
• Experience with healthcare EDI transactions including 837 claims and 835 remittance advice files.
• Working knowledge of ICD-10 coding standards and their impact on claims processing.
• Ability to analyze business requirements and convert them into technical specifications program designs and implementation plans.
• Experience participating in code reviews testing release management and change-control processes.
• Strong problem-solving written communication documentation and stakeholder-management skills.
• Ability to work effectively in a hybrid team environment and be onsite in Chicago three days per week.

• Experience working with payer provider health insurance Medicare Medicaid or other healthcare claims platforms.
• Experience with HIPAA-related claims-processing requirements and healthcare data controls.
• Familiarity with Agile delivery methodologies Jira ServiceNow or similar work-management and incident-management tools.
• Experience with mainframe production-support models including on-call support and incident triage.
• Prior experience mentoring developers or serving as a technical lead on mainframe development initiatives.
• Experience with testing tools or methodologies for mainframe applications batch jobs and EDI claims-processing interfaces.

• Strong ownership of complex application issues from analysis through production resolution.
• A quality-focused approach to design coding testing documentation and production support.
• The ability to balance urgent production priorities with sustainable engineering solutions.
• Clear communication skills for working across business healthcare operations and technical delivery teams.
• A collaborative mindset and willingness to mentor team members while helping improve engineering and support practices.

For additional information regarding benefits please see the Globant Experience Guide.

Accommodations: If you have a need that requires an accommodation please let us know by contacting the recruiting team at

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Equal Employment Opportunity: Globant is proud to be an equal opportunity and affirmative action employer. We are committed to building a workforce that is representative of the users we serve creating a culture of belonging and providing an equal employment opportunity regardless of any basis protected by law. For Canadian job postings Globant does not discriminate based on any Canadian Federal or Provincial anti-discrimination law and offers the same opportunities to all applicants regardless of characteristics.

Use of AI: Globant may use AI and machine learning technologies in our recruitment process. Globant is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion sex national origin disability veteran status or any other characteristic protected by applicable federal state or local law. Globant is also committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability please let your recruiter know.

Remote work: Remote work permissibility is subject to change depending on business necessity. For additional questions regarding work locations please discuss with your hiring partner directly.