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# HA Mainframe Developer - Connex

- **Company:** Pyramid Inc.
- **Location:** Dallas, TX, United States
- **Salary:** $114,400.0 - $124,800.0
- **Contract:** Permanent contract
- **Skills:** Application Testing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Databases, Data Integrity, Data Security, IBM DB2, Software Debugging, Job Control Language (JCL), Mainframes, Online Transaction Processing, Performance Tuning, Scrum Methodology, Software Deployment, SQL Databases, Transaction Processing (Computing), System Availability, Mainframe Programming
- **Published:** October 28, 2026
- **Apply:** https://www.careerbuilder.com/job-details/ha-mainframe-developer-connex-dallas-tx--6a80b11e-7f0b-4c4f-b293-d3e3ae99a830

## About the Role

Mainframe Computer, Employee Benefits, ATM, Transaction Processing/Management, Mainframe Computer, High Availability, Payment Processing, Cobol Programming Language, IBM CICS (Customer Information Control System), SQL (Structured Query Language), * Required Skills: Connex, ATM/POS, Systematics, Assembler, COBOL, CICS, DB2

 * Hands-on experience with Connex for ATM/POS payment processing - mandatory.
 * Experience with the Systematics banking platform.
 * Strong development experience in COBOL and Assembler.
 * Experience with CICS for online transaction processing.
 * Strong knowledge of DB2 and SQL.
 * Experience supporting high-availability mainframe applications.
 * Strong debugging, troubleshooting, and production support skills.
 * Experience in banking, financial services, or payment processing environments.
 * The ideal candidate is a hands-on mainframe developer with strong COBOL, Assembler, and CICS skills, experience supporting production applications, and the ability to resolve complex technical issues.
 * Experience in banking or financial services and familiarity with FIS Systematics or Connex will be an added advantage have
 * Note: The client has identified the technical skills and responsibilities above as required, while FIS Systematics, Connex, JCL, DB2, Agile/Scrum, and core banking experience are preferred.

## Description

Immediate need for a talented HA Mainframe Developer - Connex. This is a 06+months contract opportunity with long-term potential and is located in U.S(Remote). Please review the job description below and contact me ASAP if you are interested., * Design, develop, enhance, and maintain high-availability (HA) mainframe applications supporting ATM/POS transaction processing.

 * Work on Connex-based payment processing applications, including transaction routing, authorization, and related ATM/POS functionality.
 * Develop and maintain mainframe programs using COBOL and Assembler.
 * Support online transaction processing applications using CICS.
 * Work with DB2 databases, including SQL queries, data access, and performance optimization.
 * Support and maintain banking applications built on the Systematics platform.
 * Troubleshoot production issues, analyze root causes, and implement effective solutions.
 * Participate in application testing, debugging, code reviews, and production deployments.
 * Ensure application availability, reliability, performance, and data integrity.
 * Collaborate with business analysts, QA teams, infrastructure teams, and other developers to deliver reliable banking solutions.