Mainframe Assembler

Position: Senior Mainframe Assembler Developer

Location: Alpharetta, GA / Omaha, NE

Work Schedule: 5 Days Onsite (No Remote Option)

Detailed Technical Requirements:

Strong hands-on experience with Mainframe technologies: COBOL, JCL, DB2, VSAM, CICS, and Assembler (Assembler + CICS are mandatory)

Proficient with ISPF utilities, IOF, CA7, Endevor, File-Aid/File-Master, SPUFI, REXX

Experience with incident/change management tools and Agile/Scrum environments (Jira)

Proficient in debugging tools for batch and online applications: Xpeditor, Abend-AID

Demonstrated experience in impact analysis, design document creation, code review, release & deployment management, and production support

Willingness to support peak seasons, weekend releases, and post-deployment monitoring

Expertise in online issuer authorization applications, payment processing systems, and handling issuer mandates

Strong documentation, testing, and validation skills