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Mainframe Modernization Architect

Company

CGI

Location

Toronto, Ontario

Posted

March 22, 2026

Position Overview

Position Description:

The Mainframe Modernization Architect is a strategic technology leader responsible for defining and driving end‑to‑end modernization of legacy mainframe applications, platforms, and data ecosystems.

Your future duties and responsibilities:

- Lead end‑to‑end modernization of mainframe applications and data (COBOL, PL/I, CICS, IMS, DB2, MQ, JCL) into cloud, hybrid, distributed, or re‑platformed architectures.
- Define modernization strategies (rehost, replatform, refactor, rewrite, replace, encapsulate) aligned to business goals and risk appetite.
- Develop phased migration roadmaps, dependency mapping, and cutover models (strangler fig, blue/green, parallel run).
- Design target-state architectures for applications, data, integration, and observability across mainframe + cloud.
- To create and present solution, Lead proposal to completion
- Establish domain decomposition, API and event-driven s...

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