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# Mainframe Engineer

- **Company:** Raas Infotek LLC
- **Location:** Boston, MA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Application Performance Management, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Databases, IBM DB2, Software Debugging, Programming Tools, Job Control Language (JCL), IBM Mainframe, Job Scheduling, Mainframes, Online Transaction Processing, Performance Tuning, Release Management, Software Engineering, SQL Stored Procedures, SQL Databases, Virtual Storage Access Methods, Tso/ispf, Enterprise Software Applications, Software Troubleshooting, Reliability of Systems, Integration Tests, Control M
- **Published:** October 14, 2026
- **Apply:** https://www.dice.com/job-detail/3b876500-352d-4f5e-8082-2529f400202c

## About the Role

We are looking for an experienced Senior Mainframe Developer with strong expertise in IBM Mainframe technologies, application development, maintenance, and production support. The ideal candidate should have hands-on experience with COBOL, JCL, DB2, and CICS, along with the ability to troubleshoot complex technical issues and support enterprise-level applications., * Strong hands-on experience with COBOL, JCL, DB2, and CICS.

 * Experience with IBM z/OS mainframe environments.
 * Knowledge of VSAM files and mainframe batch processing.
 * Experience with job scheduling tools such as Control-M or CA-7.
 * Strong debugging, problem-solving, and production support skills.
 * Experience with mainframe testing, release management, and change management.
 * Excellent communication and collaboration skills.

Preferred Qualifications

 * Experience with IBM utilities, TSO/ISPF, and mainframe development tools.
 * Knowledge of IMS, MQ, or other mainframe technologies.
 * Experience in Agile development environments.
 * Domain experience in banking, financial services, insurance, or other enterprise environments is a plus.

## Description

* Design, develop, maintain, and enhance mainframe applications using COBOL.
 * Develop and maintain batch jobs, procedures, and workflows using JCL.
 * Work with DB2 databases, including SQL queries, stored procedures, and performance tuning.
 * Develop and support online transaction processing applications using CICS.
 * Analyze business requirements and translate them into technical solutions.
 * Troubleshoot production issues, perform root-cause analysis, and implement fixes.
 * Conduct unit testing, integration testing, debugging, and code reviews.
 * Optimize application performance and ensure system reliability.
 * Collaborate with business analysts, QA teams, architects, and other developers.
 * Prepare technical documentation and follow established development standards.