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Senior Site Reliability Engineers (SRE)
LinkedIn Recruiter Post
Hiring Senior SREs for multiple openings in Mississauga, ON. Hybrid 3 days/week, $90 - $95/hr INC, 6 - month contract - to - hire with conversion up to $150K base.
About the role
- Senior Cloud Security Engineer securing AWS, Kubernetes, and CI/CD platforms for Pax8’s AI and cloud marketplace serving SMBs. Defining security standards, controls, and architecture at scale.
Responsibilities
- Review AWS, Kubernetes, CI/CD, and SaaS environments to identify security gaps, misconfigurations, and architectural weaknesses
- Perform threat modeling, security architecture reviews, and cloud security assessments
- Assess infrastructure against security baselines and drive remediation or formal risk acceptance
- Validate security controls across cloud, identity, network, and platform layers
- Establish and evolve cloud and platform security hardening standards
- Develop reference architectures, ADRs, and security design guidance
- Define and maintain secure patterns, guardrails, and baseline configurations
- Define and enforce least-privilege access models across AWS and Kubernetes
- Review IAM policies, RBAC models, identity federation, service identities, and cross-account trust boundaries
- Assess and improve CI/CD security controls, secrets management, deployment protections, and pipeline trust boundaries
- Review Infrastructure-as-Code patterns and recommend secure-by-default approaches
- Validate network security controls, segmentation, ingress controls, and cloud networking architecture
- Assess Kubernetes security controls and workload isolation
- Maintain platform security posture visibility through metrics, reporting, and tracking
- Track remediation progress and communicate risk in terms of business impact, exposure reduction, and blast radius
- Partner with DevOps, SRE, and Engineering teams as a trusted advisor
- Influence technical decisions through expertise, collaboration, and practical recommendations
Requirements
- 7+ years of experience in Cloud Security, Infrastructure Security, Platform Security, Security Architecture, DevSecOps, or related disciplines
- Experience assessing cloud environments and identifying security weaknesses, misconfigurations, or architectural risks
- Extensive hands-on AWS expertise across IAM, VPC, EKS, KMS, Secrets Manager, CloudTrail, S3, logging, networking, and access controls
- Proven Kubernetes security experience including RBAC, service accounts, workload identities, network policies, and workload isolation
- Experience securing CI/CD pipelines and cloud-native delivery workflows
- Strong understanding of threat modeling and risk-based security assessments
- Experience writing or maintaining security standards, hardening baselines, reference architectures, or security design guidance
- Strong Infrastructure-as-Code fluency, particularly Terraform
- Ability to read and review Helm charts
- Experience partnering with DevOps, SRE, Platform Engineering, or Infrastructure teams
- Ability to operate independently and influence outcomes without formal authority
- Legal right to work in the United States
- Preferred: experience in large SaaS, technology, fintech, cloud-native, or highly regulated organizations
- Preferred: experience with GitHub Actions, OIDC federation, secrets management, and deployment protection controls
- Preferred: experience operating CNAPP, CSPM, or cloud security posture management platforms
- Preferred: experience producing ADRs, security design documents, or architecture standards
- Preferred: familiarity with AI platform security, agentic workloads, and AI-enabled development practices
- Preferred: relevant certifications such as AWS Security Specialty, CCSP, CISSP, CKS, or equivalent
Benefits
- Competitive salary
- Annual performance bonus
- Stock options / stock option eligibility
- Comprehensive medical, dental, and vision insurance
- 401(k) retirement plan with company contribution / employer match
- Generous paid time off and company holidays
- Flexible, open vacation
- Paid sick time off
- Extended leave for life events
- Dedicated learning time with LinkedIn Learning access
- Wellbeing initiatives
- Employee assistance program
- Employer-paid short- and long-term disability, life, and AD&D insurance
- Career development programs
- Employee-led resource groups
- RTD Eco Pass for local Colorado employees
- Internal development hub
- Access to Learning & Development trainers, AI-powered tools, mentors, and cross-continent collaboration
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