"The healthcare industry is rapidly modernizing its legacy systems, making seasoned COBOL developers more valuable than ever. Companies are also integrating cloud solutions like Exchange O365, creating a unique blend of old\u2011school and new\u2011school tech needs. This role offers a chance to leverage deep mainframe expertise while gaining exposure to modern collaboration tools.\n\n# Job Summary\nWe are seeking an experienced COBOL developer to design, develop, and maintain high\u2011volume claim processing applications for a healthcare client in Chicago. The ideal candidate will combine strong mainframe coding skills (CBL/CBLLE/CL) with SQL proficiency, Aldon source\u2011control expertise, and the ability to integrate Exchange O365 services. Responsibilities include analysis, coding, testing, and clear communication with cross\u2011functional teams.\n\n# Top 3 Critical Skills Table\n| Skill | Why it's critical | Mastery Level |\n|-------|-------------------|--------------|\n| COBOL (CBL/CBLLE/CL) | Core language for processing high\u2011volume healthcare claims | Senior |\n| SQL | Enables data extraction and reporting from mainframe databases | Mid |\n| Aldon | Manages source control and deployment for COBOL applications | Mid |\n\n# Interview Preparation\n1. **How do you retrieve and update claim data using COBOL and embedded SQL?**\n *What the interviewer is looking for:* Ability to write efficient EXEC SQL statements within COBOL, understand cursor handling, and maintain data integrity.\n2. **Describe your experience with Aldon and its role in a mainframe CI/CD pipeline.**\n *What the interviewer is looking for:* Familiarity with Aldon change management, version control, and automated build/deployment processes.\n3. **Explain a scenario where you integrated Exchange O365 services with a legacy COBOL system.**\n *What the interviewer is looking for:* Knowledge of APIs, middleware, or messaging approaches that bridge mainframe and cloud collaboration tools.\n4. **What testing strategies do you employ for COBOL applications handling healthcare claims?**\n *What the interviewer is looking for:* Use of unit testing frameworks, end\u2011to\u2011end functional tests, and compliance with healthcare data standards.\n5. **Give an example of a complex analysis you performed on claim data and how you communicated the results to non\u2011technical stakeholders.**\n *What the interviewer is looking for:* Strong analytical thinking, clear documentation, and effective verbal communication skills.\n\n# Resume Optimization\n- COBOL\n- CBL\n- CBLLE\n- CL\n- SQL\n- Aldon\n- Exchange O365\n- RxClaim\n- Healthcare claims\n- Mainframe testing\n\n# Application Strategy\nWhen reaching out to the recruiter, send a concise email that starts with a friendly greeting, attaches your updated resume, and clearly highlights your top skills. Make sure to mention related skills you possess, such as COBOL development, SQL data handling, and Aldon source\u2011control experience. Reference any projects where you integrated Exchange O365 or worked on RxClaim\u2011related workflows, and tie these directly to the responsibilities listed in the job description.\n\n# Career Roadmap\n| Current Role | Typical Experience | Core Focus | Next Position |\n|--------------|-------------------|------------|---------------|\n| COBOL Developer | 5\u201310 years | Mainframe development, SQL, Aldon, O365 integration | Senior COBOL Engineer |\n| Senior COBOL Engineer | 10\u201315 years | Architecture, performance tuning, team leadership | Lead Mainframe Architect |\n| Lead Mainframe Architect | 15+ years | Strategic roadmap, cross\u2011platform integration | Director of Mainframe Solutions |\n"