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Senior C# Developer – Orchestrade; ENG

Job in Montreal, Montréal, Province de Québec, Canada
Listing for: CGI
Full Time position
Listed on 2026-07-20
Job specializations:
  • Software Development
    .NET Developer
Job Description & How to Apply Below
Position: Senior C# Developer – Orchestrade (ENG)
Location: Montreal

Position

Description:

*** Opportunity opened to international candidates **
* Join CGI and contribute to the evolution of mission-critical systems at the heart of financial markets. Within our Capital Markets IT team, you will work on a strategic platform built around Orchestrade, as part of a multi-year transformation program aimed at strengthening performance, robustness, and long-term sustainability of the information system.
Orchestrade, a third-party solution extended through a plugin-based architecture, represents a core component of our application ecosystem. Our team designs, develops, and optimizes integrated components while continuously evolving technical standards and internal frameworks.

Your future duties and responsibilities:

Your Responsibilities

• Design and develop high-performance .NET / C# modules and plugins around Orchestrade, contributing to the creation of public APIs and internal frameworks.

• Refactor and optimize existing components to enhance performance, scalability, and maintainability.

• Ensure code quality through automated testing, code reviews, and adherence to engineering best practices.

• Contribute to the evolution of the application architecture, CI/CD pipelines, and release processes.

• Collaborate closely with business stakeholders and delivery teams, mentor junior developers, and interact regularly with U.S.

-based teams.

Required qualifications to be successful in this role:

Your Profile

• 7+ years of experience in software development with strong expertise in .NET / .NET Core / C#.

• Solid experience in multithreading, algorithm design, and performance optimization.

• Good knowledge of web development and JavaScript, and strong familiarity with Windows environments.

• Experience with CI/CD practices and Software Factory tools such as Azure Dev Ops, Sonar, or Ansible.

• Knowledge of MVC, ASP.NET, Vue, Angular, or React, as well as RabbitMQ, IBM MQ, or Power Shell, is considered a plus.

• Professional English is required for regular interaction with North American teams.
Why Join CGI?

• Work on high-impact, mission-critical systems within the financial markets industry.

• Contribute to a major technology transformation program.

• Grow within a collaborative, high-performing team focused on engineering excellence

Skills:

  • .NET
  • Angular CLI
  • ASP.NET
  • Position Requirements
    10+ Years work experience
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