This role is responsible for designing, implementing, and maintaining security controls across AWS and Kubernetes, leading incident response, and building detection and monitoring capabilities. The ideal candidate has 5+ years of hands-on security engineering experience with strong cloud security architecture and Kubernetes fundamentals. This is a greenfield opportunity to build the security function at a high-growth AI SaaS startup.
Key Highlights
Key Responsibilities
Technical Skills Required
Benefits & Perks
Nice to Have
Job Description
Senior Security Engineer
Location: 100% remote in Canada, office in Toronto for those who want to visit
Type: Full-time | Permanent
Compensation: $160–220K CAD base, 10% bonus + meaningful early-stage equity
We’re partnering with a fast-growing AI SaaS startup building a next-generation developer platform for engineers in a highly technical, regulated domain. With over $100m USD in funding, the product delivers step-function productivity gains through AI-native workflows and deep integration with high-performance systems.
They’re hiring a Senior Security Engineer to build and scale the security function from the ground up. The platform handles extremely sensitive data across product, models, and cloud infrastructure, so security is core to the business, not an afterthought.
This role sits at the center of trust and ownership, with responsibility across cloud, product, compliance, and operations, helping ensure the company meets enterprise-grade expectations as it scales (including SOC 2).
What You’ll Do
- Design, implement, and maintain security controls across AWS and Kubernetes
- Own cloud security fundamentals including IAM, network security, and secrets management
- Lead security architecture reviews for new services and infrastructure changes
- Build and operationalize incident response playbooks and runbooks
- Lead investigations, containment, and post-incident reviews
- Build detection and monitoring across infrastructure and applications
- Implement security guardrails across CI/CD, infrastructure-as-code, and cloud environments
- Partner closely with engineering and leadership to raise the security bar without slowing velocity
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What We’re Looking For
- 5+ years of hands-on security engineering experience
- Strong cloud security architecture background (AWS preferred)
- Solid Kubernetes and identity/security fundamentals (IAM)
- Experience leading incident investigations and building detection capabilities
- Experience building security tooling and guardrails for engineering teams
- Strong communication skills and ability to influence across product and engineering
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Bonus Points
- Experience with SOC 2, ISO 27001, or similar frameworks
- Startup experience (high ownership, fast pace, build-from-zero mindset)
- Proficiency in Python, Go, Java, or TypeScript
- Experience with corporate security (endpoint protection, SSO/MFA, identity management)
Why Join?
- Greenfield opportunity to build the security function at a high-growth startup
- Work at the intersection of AI, cloud infrastructure, and complex engineering systems
- Modern cloud-native stack (AWS, Kubernetes, microservices)
- Strong compensation and meaningful equity
- High-caliber team, high autonomy, direct impact
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