Principal Engineer, Enterprise AI Platform & Guardrails

Bank of Montreal; Toronto; On-site; CAD 95,000 - 176,000; Full time

Benefits offered by this job

Health insurance

Retirement savings plans

Job summary

Bank of Montreal seeks an senior principal engineer to own core AI platform capabilities across gateways, registry, and policy enforcement. You will operate production infrastructure with strong on-call ownership in a regulated banking environment, ensuring evidence, auditability, and policy compliance across multi-cloud environments.

You will mentor teams, build scalable platform services, and collaborate with AI security, DevOps, and architecture to uphold OSFI/OCC expectations while

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related technical discipline; Master’s preferred.
• 8+ years of software/platform engineering experience in enterprise-scale environments (Principals) or 5+ years (Senior).
• Demonstrated experience operating production infrastructure with SLOs and on-call ownership.

Responsibilities

• Own capabilities end to end: design, implement, test, ship, and operate production infrastructure.
• Build APIs, interfaces, and integrations for platform consumption by domains and DevOps pipelines.
• Implement policy enforcement, guardrails, identity attestation, and audit as first-class concerns.
• Ensure runtime evidence connects AI activity to policy, identity, and lineage for regulatory review.

Skills

Python/Go

Cloud-native

CI/CD

GitOps

Policy-as-code

Identity/Zero-Trust

Observability

API gateways

OpenTelemetry

Education

Bachelor's degree in CS/SE

Master's preferred

Tools

AWS

Azure

Kubernetes

CDK/Terraform

OPA/Cedar

MLflow

Job description

Bank of Montreal seeks an senior principal engineer to own core AI platform capabilities across gateways, registry, and policy enforcement. You will operate production infrastructure with strong on-call ownership in a regulated banking environment, ensuring evidence, auditability, and policy compliance across multi-cloud environments.

You will mentor teams, build scalable platform services, and collaborate with AI security, DevOps, and architecture to uphold OSFI/OCC expectations while