Mainframe Developer (Senior)

Globant•Chicago, IL

2d•Hybrid

About The Position

Globant is seeking an experienced Mainframe Developer to support a client’s healthcare claims technology environment. This role will serve as a technical lead and subject matter expert for mainframe-based claims adjudication applications, contributing to production support, system enhancements, complex defect resolution, and modernization-related initiatives. The ideal candidate has strong hands-on mainframe development experience, deep knowledge of healthcare claims processing, and the ability to partner with business and technology stakeholders to deliver reliable, compliant, and scalable solutions.

Requirements

6–9 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.

Nice To Haves

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.

Responsibilities

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.