Mainframe Developer

Snapcode Inc; United States; On-site; USD 90,000 - 140,000; Full time

Job summary

Snapcode Inc. is seeking a seasoned mainframe professional to support IDMS databases, COBOL batch processing, and data integration tasks across legacy systems.

You will diagnose performance issues, map data transformations, define interface specs, and collaborate with application teams to ensure reliable data exchange and timely batch runs.

Experience with JCL, VSAM, and scheduling tools such as CA7 or Control-M is a plus.

Qualifications

• Strong COBOL, JCL, and batch processing expertise.
• Experience with IDMS or comparable mainframe databases.
• Experience with VSAM datasets and file-processing applications.
• Proven track record in application integrations and data exchange processes.
• Experience analyzing and modifying legacy systems.

Responsibilities

• Develop and support IDMS database navigation and COBOL batch processing.
• Design, implement, and support batch processing and file parsing.
• Perform data transformation and interface mapping across systems.
• Manage GDG datasets and dataset lifecycle administration.
• Troubleshoot and resolve data integration issues and root causes.

Skills

COBOL

JCL

Batch processing

Analytical skills

Tools

IDMS

VSAM

CA7

Control-M

FTP/SFTP

Job description

• IDMS database development and support
  • Database navigation
  • ADS/O experience preferred
  • IDMS COBOL integration
• Batch processing development and support
• Flat file design and parsing
• Data transformation and interface mapping

Batch Processing and Infrastructure

• GDG management and dataset lifecycle administration
• FTP/SFTP processing and troubleshooting
• Scheduling tools such as:
  • CA7
  • Control-M

Integration and Analysis

• Legacy system modernization experience
• Multi-system data integration and interface support
• Technical specification interpretation
• Root cause analysis and troubleshooting
• Data mapping and transformation logic
• Strong analytical and problem-solving skills

Required Qualifications

• Strong expertise in COBOL, JCL, and batch processing.
• Experience working with IDMS or comparable mainframe database technologies.
• Experience with VSAM datasets and file-processing applications.
• Demonstrated experience supporting application integrations and data exchange processes.
• Experience analyzing and modifying legacy systems.
• Strong verbal and written communication skills.
• Ability to work independently and collaboratively in a team environment.