Senior Lead Application Security Engineer

We are looking for an Application Security Engineer to join the Agentic Platform pillar, working within the Cloud Platform team. This team owns the secure, governed foundation that enables all of Copperleaf’s R&D teams to build and ship faster. In this role you will embed security directly into the platform and across every CI/CD pipeline, shifting our posture from reactive to proactive. You will bring traditional application security depth into our DevSecOps culture and, critically, use AI agents to continuously and autonomously improve our security posture. Our operating premise is simple: agentic attacks require agentic defense. You will build the agents, skills, and guardrails that detect, triage, and remediate security risk at machine speed, staying ahead of threats rather than responding to them after the fact. This is a hands-on, implementation-first role: you will personally build, ship, and operate the security changes you design, working directly in the code and the pipelines rather than advising from the sidelines. Key Responsibilities include embedding application security into the Cloud Platform and across all CI/CD pipelines, designing and operating AI-driven security agents, establishing SSDLC practices, leading security of agentic systems, managing vulnerabilities, hardening AKS workloads, contributing to compliance, defining security runbooks, and acting as the security skill set within the platform team. Technical focus areas include application security fundamentals, agentic and AI security, DevSecOps pipeline security, security tooling, cloud-native security on AKS, identity and access management, infrastructure-as-code, compliance, scripting, and automation. About you: you think proactively, are a do-er, demonstrate ownership, apply sound engineering judgment, communicate effectively, develop expertise, collaborate, leverage AI, and push the frontier of agentic defense. We offer a salary range of $117,000 CAD - $167,000 CAD, permanent full-time position, with flexible hybrid work options. We may use AI tools in recruitment but they do not make hiring decisions. Join us to make a positive impact on the world.

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