[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Tata Consultancy Services jobs](https://jobs.opennash.com/companies/tata-consultancy-services/) · [Search jobs](/search/) Tata Consultancy Services · Schaumburg, IL # AS400 Synon Application support Engineer Schaumburg, IL $110,000- $130,000 Operations Last seen on Tata Consultancy Services’s official careers site on August 1, 2026; it may have closed since. [Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/417666J) [OpenNash Jobs](https://jobs.opennash.com/) / [Tata Consultancy Services](https://jobs.opennash.com/companies/tata-consultancy-services/) / AS400 Synon Application support Engineer ## Job description ### Must Have Technical/Functional Skills - Strong hands-on experience in: o COBOL, RPG (RPG III / RPG IV), CLLE o DB2/400 (DB2400) o SQL Programming o SYNON / CA 2E o Query/400 - Deep knowledge of AS400 (IBM iSeries) architecture and environment - Experience in application maintenance and production support - Strong understanding of: - Job scheduling, batch processing, job queues - Spool files, debugging, system logs. - Experience with Change Management tools (preferred: ALDON) - Good knowledge of FTP processes and protocols for file transfer - Strong debugging and performance tuning capabilities in legacy systems ### Preferred Skills - Experience working in RxClaim / PBM (Pharmacy Benefit Management) domain. - Familiarity with healthcare systems and claims processing - Exposure to incident/problem management tools (ServiceNow, Remedy, etc.) - Knowledge of modernization approaches (Mainframe/AS400 to Cloud) is a plus. Roles & Responsibilities AS400 Synon with Production Support experience - Provide L2/L3 production support for AS400-based applications. - Perform incident analysis, root cause identification, and resolution. - Work on bug fixes, minor enhancements, and code deployments - Monitor batch jobs, interfaces, and system performance. - Support data corrections and production issue troubleshooting. - Collaborate with cross-functional teams (business, QA, DevOps) - Ensure adherence to change management and release processes. - Handle on-call support and critical production issues - Maintain documentation, knowledge base, and support runbooks. - Participate in continuous improvement and system stability initiatives Salary Range: $110,000- $130,000 a year TCS Employee Benefits Summary: Discretionary Annual Incentive. ### Comprehensive Medical Coverage Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans. ### Family Support Maternal & Parental Leaves. ### Insurance Options Auto & Home Insurance, Identity Theft Protection. ### Convenience & Professional Growth Commuter Benefits & Certification & amp; Training Reimbursement. ### Time Off Vacation, Time Off, Sick Leave & Holidays. ### Legal & Financial Assistance Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing. #LI-SP1