Senior L3 AI Engineer (M365, Copilot & LLM Platforms)

Position: Senior L3 AI Engineer (M365, Copilot & LLM Platforms)

Location: Hybrid- Montreal, QC

Job type: Full-Time/Permanent Hiring

Note- Final round will be In-person

We are seeking a Senior L3 AI Engineer to provide advanced engineering support across enterprise AI platforms, including Microsoft Copilot, OpenAI ChatGPT, Anthropic Claude, Grok, Gemini, and emerging AI products.

The engineer will serve as a senior escalation point for complex technical issues, support enterprise deployment and administration, evaluate new AI capabilities, strengthen security and compliance, and automate support and operational processes.

Key Responsibilities

• Act as the L3 engineering escalation point for complex issues across enterprise AI and M365 platforms.
• Configure, deploy, administer, and scale enterprise AI/LLM products.
• Support Microsoft Copilot, M365, Azure OpenAI, ChatGPT, Claude, Gemini, Grok, and other enterprise AI platforms.
• Manage integrations with Microsoft 365, Entra ID, Purview/DLP, Power Platform, connectors, ServiceNow, and identity platforms.
• Develop Python, PowerShell, and Microsoft Graph API automation to improve deployment, support, compliance, and operational processes.
• Troubleshoot complex AI/M365 platform issues and perform incident, problem, and root-cause analysis.
• Evaluate new AI features and models and support controlled enterprise rollouts, testing, validation, and rollback.
• Balance AI enablement with security, compliance, access control, audit logging, and responsible-AI requirements.
• Review and improve L2/L2.5 knowledge articles, troubleshooting guides, and operational documentation.
• Train and mentor L2/L2.5 support teams and establish escalation procedures.
• Own one AI product as the technical Product/Platform POC while maintaining working knowledge across the broader AI portfolio.
• Contribute to development of AI agents and automation for support, training, QA, and operational activities.
• Collaborate with Microsoft, AI vendors, security, infrastructure, application, and support teams.
• Participate in post-implementation reviews and continuous improvement initiatives.

Required Skills

• 6+ years in engineering, platform engineering, enterprise technical support, or L3/L4 support.
• Hands-on experience supporting enterprise AI/LLM platforms or Microsoft 365/Copilot.
• Strong understanding of Generative AI and LLM concepts.
• Advanced Python and/or PowerShell scripting and automation.
• Experience with Microsoft Graph API and enterprise integrations.
• Strong M365, Entra ID, Azure OpenAI, and enterprise AI administration experience.
• Experience with Purview/DLP, identity/access management, SSO/SCIM, and audit logging.
• Strong troubleshooting, incident management, RCA, and production support experience.
• Experience with Power Platform and/or enterprise connectors.
• Familiarity with CI/CD and automation practices.

Preferred

• Experience with ChatGPT Enterprise, Claude Enterprise, Gemini, Grok, or similar enterprise AI platforms.
• ServiceNow integration/support experience.
• Financial services/regulated enterprise experience.
• Experience evaluating AI models and vendor releases.
• Experience building AI agents, LLM automation, or AI-powered support tooling.
• ITIL/enterprise service-management experience.
• French language capability for Montreal.