Full-time

C# Backend Developer - Senior

Posted by CGI • Montreal, QC, Canada

📍 Montreal, QC 🕒 March 01, 2026

About the Role

Overview

Senior C# backend engineer. Context: GIT is responsible for the design, development, and production of enterprise-grade information systems within a large Capital Markets IT environment. Orchestrade (OT) is a strategic third-party trading and risk management platform used across multiple asset classes and business lines. The Orchestrade Core – Optim Team is executing a multi-year OT Next Gen program to ensure platform stability, scalability, and performance while supporting continuous functional growth delivered by multiple OT delivery teams.

Role Overview

We are seeking a Senior C# Backend Developer to join the OT Core – Optim Team . This role focuses on core backend engineering , including performance optimization, multithreaded programming, refactoring, and architectural alignment of Orchestrade core components. This is not a front-end, web, or full-stack position. The successful candidate will work...

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