Senior Mainframe Engineer - ACH PEP+ & COBOL

MainframeMaster; Atlanta, Northern (GA, KY); Hybrid; USD 110,000 - 160,000; Full time

Job summary

MainframeMaster, Atlanta-based, seeks an experienced mainframe developer with 10+ years in ACH PEP+ coding and maintenance. You will work on complex COBOL/PEP+ solutions, perform system integration tasks, and partner with business product owners to refine designs and deliver robust software in an Agile environment.

You will mentor teammates, lead portions of projects, and ensure automated testing and monitoring are part of the lifecycle.

Qualifications

• 10+ years of mainframe development experience.
• Strong knowledge of ACH processing using PEP+ and COBOL.
• Familiarity with PEP+ DB2 and PEP+ online (CICS).

Responsibilities

• Maintain and develop ACH PEP+ vendor COBOL code.
• Lead and participate in development, testing, and maintenance of complex solutions.
• Build automated monitoring and security controls for production systems.
• Collaborate with product owners and agile teams from design through delivery.

Skills

COBOL

PEP+ internals

DB2

CICS

System integration

Unit testing

Agile methodologies

Job description

MainframeMaster, Atlanta-based, seeks an experienced mainframe developer with 10+ years in ACH PEP+ coding and maintenance. You will work on complex COBOL/PEP+ solutions, perform system integration tasks, and partner with business product owners to refine designs and deliver robust software in an Agile environment.

You will mentor teammates, lead portions of projects, and ensure automated testing and monitoring are part of the lifecycle.