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Mainframe Developer

Square Hiring

 

Waltham, MA, USA

Posted On: 15+ days ago
Experience: 8+ years
Availability: Hybrid
Openings: 1
Category: Mainframe Developer
Tenure: Contract - Corp-to-Corp
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Description

You will design, develop, and enhance functionality within the Customer/1 (C/1) application, supporting utility billing and customer processes.

Responsibilities

  • Implement business and regulatory requirements using standard mainframe development practices.
  • Perform impact analysis and code changes for customer setup, billing calculations, invoicing, and adjustments.
  • Provide L2/L3 production support, analyzing batch and online processing issues including billing-critical failures.
  • Support testing phases (unit, system, UAT) and production releases while maintaining technical documentation.
  • Participate in root cause analysis to implement long-term fixes for production issues.

Required Skills

  • 8+ years of experience as a mainframe application developer or senior support developer.
  • Hands-on development experience with COBOL, JCL, CICS, and/or IMS.
  • Experience with DB2 on z/OS.
  • Proven track record supporting Customer Information Systems (CIS) in a utility environment.
  • Experience supporting batch and online processing in production environments.
  • Understanding of bill-critical batch cycles and production schedules.
  • Ability to translate business requirements into technical solutions.

Preferred Skills

  • Prior experience with Customer/1 (C/1) or similar utility CIS platforms.
  • Strong understanding of utility billing and customer processes.

Education

Any Gradute

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