Principal Site Reliability Engineer
Parallel Domain
full-time
Posted on:
Location Type: Remote
Location: Canada
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Job Level
About the role
- Own and evolve our AWS-based infrastructure, improving platform performance and availability today, and building toward deployable configurations that support enterprise customer environments tomorrow.
- Own EKS cluster operations across production regions: node pool strategy, AMI lifecycle, autoscaling, and Kubernetes workload health.
- Support the GitOps deployment pipeline - define, deploy, and manage applications across clusters using infrastructure-as-code.
- Manage complex networking: VPC design, cross-region connectivity, DNS, and load balancing.
- Lead infrastructure deprecation and migration efforts with minimal disruption.
- Own SLO measurement infrastructure; enable proactive triage of emerging issues before they impact customers.
- Lead incident investigation, root cause analysis and postmortems, driving systemic fixes rather than one-off patches.
- Design and improve automated remediation systems to reduce MTTR.
- Review and provide security-conscious feedback on platform architecture decisions.
- Own cloud IAM governance - roles, policies, and access boundaries across accounts and services.
- Lead compliance-adjacent work including audit-readiness, partner certification requirements, and supporting responses to customer security questionnaires.
- Partner with application development teams to build an inherently secure platform and drive next-generation deployment architecture.
- Partner with customer teams to ensure availability for expected utilization.
- Partner with Finance on cloud cost optimization - lifecycle policies, right-sizing, and spend visibility.
- Support GPU and batch workloads in collaboration with simulation and ML engineering teams.
- Improve CI/CD pipelines and automated infrastructure validation.
- Support engineering teams with infra-side debugging, log analysis, and environment configuration.
Requirements
- 5+ years in SRE, DevOps, or infrastructure engineering roles.
- Infrastructure-as-code proficiency - Terraform modules, state management, and multi-environment patterns.
- Deep AWS experience - EKS, EC2, IAM, S3, Storage Gateway, VPC networking, Transit Gateway, CloudFront, KMS, and IRSA.
- Kubernetes expertise - cluster operations, node pools, probes, cordoning, pod scheduling, RBAC, Helm, node autoscaling (Karpenter experience a plus); solid understanding of containerization and AMI lifecycle management.
- CI/CD - experience with GitOps workflows and pipeline tooling (ArgoCD, GitHub Actions, Jenkins)
- Solid networking fundamentals - CIDR design, security groups, DNS, load balancing, VPN, cross-region connectivity.
- Experience with monitoring and observability tooling - Prometheus, Grafana, Elasticsearch.
- Comfort with Python and Bash for tooling and automation.
- Familiarity working across Linux and Windows environments. Operational familiarity with Windows Server is a meaningful advantage.
- You communicate clearly across engineering, product, and customer-facing teams, flagging issues with urgency proportional to customer impact.
- You advocate for SRE best practices and can effectively operationalize an informed and principled view on security.
- You take end-to-end ownership of complex, multi-team efforts - from planning through execution and post-change verification.
- You know when to push for a clean solution vs. when to accept a pragmatic one, and you communicate that tradeoff clearly.
Benefits
- Health insurance
- Retirement plans
- Paid time off
- Flexible work arrangements
- Professional development opportunities
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
AWSEKSEC2IAMS3TerraformKubernetesCI/CDPythonBash
Soft Skills
communicationadvocacy for SRE best practicesownershipurgencycollaborationproblem-solvingleadershipincident investigationroot cause analysisfeedback