Our financial services client is seeking a Mainframe Application Developer to design, develop, and maintain enterprise-grade mainframe applications using COBOL, CICS, PL/1, JCL, DB2, and VSAM Duration: 3 months - Short Term Contract with Robust possibility of conversion into full-time positions Location: Downtown Toronto - Hybrid - 2 days in office (Tuesday and Thursday **subject to change**) Join a team within retail investments focused on delivering secure, scalable, and reliable mainframe solutions supporting business-critical operations.

This short-term contract offers immediate engagement and strong potential for full-time conversion within months.

The role provides visibility across enterprise architecture and technology strategy while contributing to modernization and continuous improvement initiatives.

Must Haves 35 years of mainframe development including COBOL , CICS , PL/1 , JCL , DB2 , and VSAM Proficiency in z/OS environments applying enterprise architecture and security standards Hands-on work with EASYTRIEVE and FOCUS scripting on mainframe systems Knowledge of Jira , Confluence , and Service





Now for development coordination Post-secondary education in Computer Science or related field Nice to Have Exposure to AI technologies and mainframe modernization initiatives Experience with CSF Designer Responsibilities Designs, develops, tests, and implements mainframe applications aligned with business and technology requirements.

Translates business needs into detailed technical specifications and high-quality code.

Ensures solutions meet enterprise standards for security, performance, and operational excellence.

Analyzes system impacts across upstream and downstream dependencies.

Supports production stability through root cause analysis and timely issue resolution.

Evaluates and recommends improvements to technology, processes, and system efficiency.

Builds scalable, maintainable, and reusable solutions aligned with enterprise objectives.

Collaborates with business and technology stakeholders to deliver aligned outcomes.

Reviews code and provides guidance to support team effectiveness and quality.

Contributes to development standards, frameworks, and continuous improvement initiatives.

Supports delivery of project outcomes and operational priorities.

Mentors team members and contributes to knowledge sharing and capability development.

📌 Mainframe Application Developer to design, develop, and maintain enterprise-grade mainframe applications using COBOL, CICS, PL/1, JCL,and VSAM (Toronto)
🏢 S.i. Systems
📍 Toronto