Calix

Senior Systems Administrator

Calix

full-time

Posted on:

Location: 🇺🇸 United States

Visit company website
✨ AI Apply
Apply

Salary

💰 $116,000 - $197,000 per year

Job Level

Senior

Tech Stack

AnsibleAzureChefCloudCyber SecurityDNSDockerGoogle Cloud PlatformITSMKubernetesLinuxPuppetTerraformVMware

About the role

  • Lead the administration and lifecycle management of core infrastructure technologies including virtualization platforms (VMware, KVM), storage systems, and cloud environments (GCP, Azure).
  • Architect and implement scalable, secure, and resilient infrastructure solutions that support engineering and product development.
  • Serve as a subject matter expert in Linux and Windows systems administration, automation, and configuration management.
  • Drive incident response and root cause analysis for complex infrastructure issues; lead post-mortem reviews and continuous improvement efforts.
  • Develop and maintain infrastructure documentation, including architecture diagrams, SOPs, and knowledge base articles.
  • Mentor junior team members and contribute to the development of team standards and best practices.
  • Collaborate with internal stakeholders to translate business and technical requirements into actionable infrastructure strategies.
  • Evaluate and recommend new technologies, tools, and vendors to enhance infrastructure capabilities.
  • Lead vendor performance reviews and participate in strategic planning for infrastructure investments.
  • Define and track key performance indicators (KPIs) to measure system health, team productivity, and service quality.
  • Participate in capacity planning, budgeting, and roadmap development for infrastructure services.

Requirements

  • 5–8 years of experience in systems administration, infrastructure engineering, or related IT roles.
  • Proven experience leading infrastructure projects and cross-functional initiatives.
  • Strong communication and interpersonal skills; able to influence and collaborate across teams.
  • Demonstrated ability to prioritize and manage multiple initiatives in a dynamic environment.
  • Deep understanding of IT service management (ITIL), DevOps practices, and Agile methodologies.
  • Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
  • Availability for off-hours support and collaboration with global teams.
  • Occasional travel may be required.
  • Preferred: Expertise in virtualization (VMware, KVM, Hyper-V) and containerization (Docker, Kubernetes).
  • Preferred: Strong knowledge of IP networking, VLANs, routing, DNS, and virtual networking.
  • Preferred: Experience with infrastructure automation tools (Ansible, Chef, Puppet, Terraform).
  • Preferred: Familiarity with identity and access management (Active Directory, LDAP).
  • Preferred: Experience with converged/hyperconverged infrastructure and SAN/NAS storage.
  • Preferred: Cybersecurity awareness and experience implementing secure infrastructure practices.