Jobs in Canada

Principal Model Optimization Engineer in Canada

83 active opportunities · Updated October 2026

Explore current principal model optimization engineer jobs across Canada. Filter by work mode, employment type, experience, department, date posted and distance.

R
📍 San Mateo, Canada· Full-time
✓ Quality checkedCompany trend -100%

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. The Consumer App Foundation team is looking for a Principal Software Engineer to improve Roblox client performance across our supported platforms. You’ll work primarily in cross-platform C++ Roblox game engine code, partnering with teams across the company to identify bottlenecks, ship measurable improvements, and prevent regressions over time. Our team owns the end-to-end performance of Roblox. We tackle the platform’s most difficult technical constraints—from speed and responsiveness to efficiency and stability —ensuring a high-performance experience across all of our devices and platforms: mobile, desktop, and console. You will: Conduct research, create and drive execu

AWSCI/CDGitAI
R
📍 San Mateo, Canada· Full-time
✓ Quality checkedCompany trend -100%

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. The Engineering Acceleration team delivers a world-class development experience to our 2000+ Roblox teammates who write, build, and ship the most incredible virtual experience platform in the world. As a Principal Software Engineer, you will set the technical direction for transforming development at Roblox from its solid roots to a fully scaled, globally mature, AI-powered development, code review and CI environment. If you are passionate about engineering productivity and you've ever wanted to define — not just build — the systems that fundamentally change how an entire engineering organization operates, this is your opportunity. <p class="font-claude-response-body break-

PythonJavaAWSDocker
O
📍 Washington, Ontario, Canada· Full-time
✓ High-confidence listingCompany trend -65.7%

From $269K/yr

Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. About Okta for AI Agents Okta secures access for 20,000 organizations and billions of users. Okta for AI Agents extends that work to the agentic shift. Deploying an AI agent is not like deploying traditional software. You are putting professional work output into production, and it needs deep integration, continuous tuning, and change management. Every agent needs an identity, a scope, an audit trail, and a way to be shut down when it goes wrong. Most enterprises have not built this yet. We are. We hire builders who see the cracks in enterprise agent identity that everyone else has learned to live with. The Role You are the most senior technical field authority for agent identity at Okta. Where a Senior FDE owns the outcome inside one account, you own the patterns that every account and every FDE inherits. You take the hardest and most strategic deployments yourself, set the reference architecture the team builds from, and turn what the field learns into the direction the product takes. You still write code. You also multiply the people around you, and you are the person product and engineering leadership call when an agent identity problem has no precedent. Responsibilities Own the reference architecture. Define the canonical agent identity, delegation, audit, and kill-switch patterns that Senior FDEs deploy across the portfolio, and keep them current as the standards and the product move. Lead the hardest accounts. Personally own the most strategic, regul

AWSRestMachine LearningAI
O
📍 Toronto, Ontario, Canada· Full-time
✓ High-confidence listingCompany trend -65.7%

From C$140K/yr

Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. The Role You are a deep technical architect. Whether it's a Fortune 500 CTO or a startup founder, you know how to read the room and steer it. You have handled enough OAuth token flows, SCIM failures, and multi-product integration edge cases to spot root issues fast. In this role, you will help shape how developers understand identity at scale. You serve as the top technical escalation point for our support team. You are our domain expert. You influence product roadmaps. You mentor engineers. You challenge standard practices. You raise the bar across the entire global team. You handle ambiguity well. You operate with full autonomy. You focus on delivering outcomes that unblock our most complex accounts. What You Do Strategic Escalations and Architecture This is not primarily a queue role. You will mostly engage on cases that exceed senior engineer scope, the ones that need architecture judgment, not triage. End-to-End Ownership: Resolve our most complex developer cases, including multi-product architectures, ISV integration designs, and strategic account escalations. Cross-Functional Bridge: Serve as the technical link between Developer Support and ISV Partnerships, working directly with strategic partners on integration design. Architectural Consulting: Join customer and partner calls to advise on architecture and resolve issues beyond standard support scope. Product and Executive Engagement Roadmap Influence: Partner with Product Management and Engineering

JavaScriptPythonJavaNode.js
O
📍 Toronto, Ontario, Canada· Full-time
✓ High-confidence listingCompany trend -65.7%

From $184K/yr

Quick readStrong listing-quality and freshness signals

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Okta Identity Governance (OIG) organization is looking for a Principal Engineer to join our team — OIG is Okta’s Identity Governance and Administration solution that is directly responsible for one of the most critical and visible workflows in enterprise identity: how employees request, approve, and gain access to the resources they need. Opportunity As a Principal Engineer on the OIG team, you will be involved into development, design, and maintenance of our product to serve enterprise customers at scale. You will involve the architecture and evolution of our product features — spanning the across different access governance personas — and work collaboratively across engineering, product, and design to deliver features that are secure, scalable, and delightful to use. This is a role for someone who thinks in systems, leads with craft, and is energized by the challenge of building enterprise-grade software that millions of users depend on. Th

JavaAWSAzureGCP
O
📍 Toronto, Ontario, Canada· Full-time
✓ Quality checkedCompany trend -65.7%

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Okta is the leading independent provider of enterprise identity. Auth0 enables organizations to securely connect the right people to the right technologies at the right time. With over 7,000 pre-built integrations to applications and infrastructure providers, Okta customers can easily and securely use the best technologies for their business. Over 10,000 organizations, including 20th Century Fox, JetBlue, Nordstrom, Slack, Teach for America, and Twilio, trust Okta to help protect the identities of their workforces and customers. Auth0 is an easy-to-implement, authentication and authorization platform designed by developers for developers. We make applications’ login boxes safe, secure, and seamless for anyone logging in. Position Description : We are looking for a Principal Group Product Manager to join our team. You will work with our engineering teams to shape the future of our products. We are looking for a creative, engineering-minded individual to uncover and solve the highly complex operational realities that face our customers when they deploy high-scale, multi-tenant B2B applications on top of Auth0. This individual will help shape the next generation of our Tenancy-as-a-Service (TaaS) offeri

SQLAWSCI/CDRest
🔔

Get new principal model optimization engineer jobs in Canada by email

Daily job updates · Unsubscribe anytime