Senior Mainframe Developer: COBOL, JCL & DB2 Expert

VistalTech Inc; Dallas (TX); On-site; USD 110,000 - 170,000; Full time

Job summary

VistalTech Inc. is seeking an experienced Mainframe Developer to support enterprise mainframe applications in the financial services sector. The role requires hands-on COBOL, JCL, and DB2 expertise on IBM z/OS in a production environment.

You will design, develop, and optimize batch jobs, participate in agile releases, and collaborate with analysts and cross-functional teams to ensure reliability, data integrity, and performance.

Qualifications

• Strong hands-on COBOL development, maintenance, debugging, and enhancement of mainframe applications.
• Expertise in creating, modifying, and troubleshooting batch jobs and scheduling processes.
• Strong experience with DB2 databases, SQL queries, stored procedures, and performance tuning.
• Experience with IBM z/OS and enterprise mainframe systems.
• Experience with batch execution, file handling, job monitoring, and production support.
• Ability to analyze failures, resolve abends, and troubleshoot production issues.
• Experience in banking, financial services, or payments applications is preferred.

Responsibilities

• Design, develop, and maintain mainframe applications using COBOL, JCL, and DB2.
• Develop and optimize batch processing jobs and DB2 queries.
• Troubleshoot and resolve application defects, job failures, and production issues.
• Perform code reviews, unit testing, and system integration testing.
• Collaborate with business analysts, architects, and cross-functional development teams.
• Support application enhancements, maintenance, and modernization initiatives.
• Ensure application performance, reliability, and data integrity.
• Participate in Agile development activities and production releases.

Skills

COBOL

JCL

DB2

Mainframe Environment

Batch Processing

Debugging

Financial Services

Job description

VistalTech Inc. is seeking an experienced Mainframe Developer to support enterprise mainframe applications in the financial services sector. The role requires hands-on COBOL, JCL, and DB2 expertise on IBM z/OS in a production environment.

You will design, develop, and optimize batch jobs, participate in agile releases, and collaborate with analysts and cross-functional teams to ensure reliability, data integrity, and performance.