Senior Site Reliability Engineer

Posted 4 months ago

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About the role

  • Senior Site Reliability Engineer establishing infrastructure to support Thunderbird’s privacy-respecting tools. Collaborates remotely with a distributed team across various time zones.

Responsibilities

  • Operate and evolve our EKS-based Kubernetes platform, supporting service migrations, platform improvements, and reliability initiatives.
  • Design and develop CI/CD systems supporting websites, services, and Thunderbird desktop releases, contributing to pipeline reliability and OIDC-based authentication across GitHub Actions workflows.
  • Write and maintain infrastructure in Pulumi and/or Terraform/OpenTofu across multiple AWS accounts.
  • Operate and evolve our observability stack (VictoriaMetrics, VictoriaLogs, Grafana, Vector) and partner with engineering teams to incorporate instrumentation and monitoring into service design.
  • Apply security-conscious infrastructure practices, including least-privilege IAM, secrets management via AWS Secrets Manager and External Secrets Operator, and network segmentation.
  • Diagnose and debug production incidents; drive root-cause analysis and post-incident improvements to prevent recurring problems.
  • Participate in on-call rotation and collaborate with SDEs and fellow SREs to ship, maintain, and monitor new builds and support service onboarding.
  • Contribute to runbooks, architecture documentation, and team processes.

Requirements

  • 7+ years of experience in infrastructure, platform engineering, or site reliability roles, including hands-on production Kubernetes experience in workload operations, troubleshooting, and cluster management.
  • Hands-on experience with infrastructure-as-code on AWS using Terraform, OpenTofu, or Pulumi.
  • Security awareness in day-to-day infrastructure work: identity, least privilege, secrets hygiene, and network controls.
  • Demonstrated ownership mindset with the ability to proactively identify issues, drive work to completion, and communicate risks early.
  • Excellent async written communication skills; comfortable working with a geographically distributed team.
  • Ability to collaborate effectively with software engineers and non-engineering stakeholders to improve platform reliability and operational efficiency.
  • Ability to learn, evaluate, and responsibly use emerging technologies, including AI-enabled tools, to improve work processes.

Benefits

  • Fully remote work & schedule flexibility
  • Company-provided laptop
  • Annual bonus program
  • Monthly remote work stipend
  • Annual professional development stipend
  • Industry conferences
  • Company all-hands and team gatherings
  • 24 days PTO per year (prorated)
  • Your birthday
  • Year-end company shutdown
  • 9 wellbeing days
  • Public holidays
  • Other paid leave
  • Quarterly wellbeing stipend for personal / family activities
  • RRSP contributions
  • Health, dental, & vision insurance
  • Disability insurance
  • Life insurance
  • Employee assistance program
  • Paid parental leave
  • Paid sick days

Job type

Full Time

Experience level

Senior

Salary

CA$108,000 - CA$125,000 per year

Degree requirement

Bachelor's Degree

Tech skills

AWSGrafanaKubernetesTerraform

Location requirements

RemoteCanada

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