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Glen Jarvis
Staff Site Reliability Engineer specializing in cloud infrastructure and automation
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About
Infrastructure/automation engineer with experience bridging post-acquisition environments (Pandora + SiriusXM) by building an API-driven integration to provision Debian workloads on RHV while preserving iPXE-based imaging workflows. Strong in deep debugging across virtualization/network/OS layers (e.g., resolving virtio/vCPU contention causing network/NFS issues) and in extending automation tooling via custom Ansible/Python modules. Also has exposure to biomanufacturing on-prem devices (Hamiltons, shakers) alongside AWS microservices.
Experience
Education
Key Strengths
- Built from scratch an API-driven system to provision Debian VMs on Red Hat Virtualization while integrating with a custom inventory/control database
- Maintained legacy imaging workflows by adapting iPXE/DHCP-based imaging to virtual machines
- Proactive reliability engineering: automated cross-datacenter image tests with rapid Slack alerting to catch network/imaging regressions early
- Cross-layer debugging (virtualization, OS, networking): identified vCPU quota/virtio driver contention as root cause of intermittent network/NFS issues and resolved via planned live vCPU upgrades
- Extended automation tooling by writing a private ansible-galaxy compliant module when upstream Ansible behavior couldn’t be changed
- Deep understanding of Ansible module execution and practical debugging techniques (verbosity, preserving remote artifacts)
- Effective cross-team collaboration with datacenter and network teams to isolate issues and deliver workable solutions
Reference Highlights
- Very capable in real production environments
- Broad technical knowledge
- Strong debugging and diagnostic ability
- Patient
- Strong mentor/teacher
- Helps others troubleshoot gracefully
- Adaptable under fast-changing conditions
- Empathetic communicator
- Cool-headed under pressure
- Able to create strong execution plans
- Improves team workflow and organization
- Technically strong across the full stack
- Clearly articulates goals and issues
- Pleasure to work with
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