We are looking for a Tandem / Mainframe Developer with strong experience in HP NonStop (Tandem) and/or Mainframe technologies . The candidate will be responsible for application development, maintenance, enhancements, and production support.
Required Skills Experience with COBOL and TACL .
Experience with Enscribe and/or SQL/MP, SQL/MX .
Good knowledge of Mainframe technologies such as COBOL, JCL, DB2, and CICS.
Experience in application development, maintenance, and troubleshooting.
Experience with production support and incident resolution .
Ability to analyze requirements and develop technical solutions.
Positive understanding of SDLC and Agile methodologies.
Strong communication and problem-solving skills.
Responsibilities Develop, enhance, and maintain Tandem/Mainframe applications.




Analyze business and technical requirements.
Perform coding, testing, debugging, and implementation.
Troubleshoot production issues and provide timely resolutions.
Work with cross-functional teams to deliver application changes.
Prepare technical documentation and support application releases.
Preferred Experience working in Banking / Financial Services is a plus.
Experience with Tandem-to-Mainframe or Mainframe-to-Tandem integration/migration is preferred.
Experience with batch processing and production support is an advantage.

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📌 Senior Tandem / Mainframe Developer (Ontario)
🏢 apptoza
📍 Ontario