Senior Tandem / Mainframe Developer – HP NonStop | COBOL | TACL | Enscribe

Apptoza Inc.; Toronto; On-site; CAD 90,000 - 120,000; Part time

Job summary

Apptoza Inc. in Toronto seeks a Tandem/Mainframe Developer with strong experience in HP NonStop (Tandem) and Mainframe tech.

You will develop, maintain, and production-support critical applications across Cobol, JCL, DB2, and CICS. Responsibilities include analyzing requirements, coding, testing, and collaborating with cross-functional teams to deliver reliable, scalable solutions within an SDLC/Agile framework.

Qualifications

• Experience with Tandem/Mainframe development and COBOL.
• Knowledge of JCL, DB2, CICS and HP NonStop system tools.
• Experience in production support and incident resolution is required.

Responsibilities

• Develop, enhance, and maintain Tandem/Mainframe applications.
• Analyze business and technical requirements and implement solutions.
• Perform coding, testing, debugging, and deployment.
• Troubleshoot production issues and provide timely resolutions.
• Collaborate with cross-functional teams and document releases.

Skills

Tandem/Mainframe development

COBOL

TACL

Enscribe

SQL/MP

SQL/MX

SDLC & Agile

Communication & problem solving

Production support

Analysis & solutions

Tools

JCL

DB2

CICS

HP NonStop

Batch processing

Job description

Location: Toronto

Job Type: Contract

Job Description

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.
• Good 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.