Senior Software Engineer

Crusoe

full-time

Posted on: 9/25/2025

Origin: • 🇺🇸 United States • California

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💰 $166,000 - $201,000 per year

Senior

Distributed SystemsGoGrafanaHAProxyKubernetesLinuxNode.jsOpen SourcePrometheusPythonVault

About the role

Design, build, and operate Kubernetes clusters on bare metal at scale
Engineer full cluster lifecycle management (Talos bootstrapping, upgrades, node reprovisioning, HA control planes, recovery workflows)
Architect networking, load balancing, and service mesh solutions optimized for bare metal
Implement performant CNIs (Calico, Cilium), integrate L2/L3 networking, routing (BGP/ECMP), and optimize traffic across racks and datacenters
Automate provisioning via PXE/iPXE, Tinkerbell, MAAS, and manage BMCs/IPMI/Redfish with standardized BIOS/firmware across heterogeneous hardware fleets
Design and operate persistent storage (local disks, block, object) including Ceph, Rook, and openEBS
Build automation and tooling (Go, Python, Bash) for provisioning, drift detection, upgrades, and incident response
Extend observability with Prometheus, Alertmanager, Grafana, OpenTelemetry, and define SLOs for cluster health, latency, and workload availability
Implement security best practices: Vault, cert-manager, RBAC hardening, network policies, and OS/K8s patch pipelines
Mentor engineers and shape technical direction for Crusoe’s Kubernetes platform

5+ years in infrastructure engineering, including 3+ years operating Kubernetes in production
Strong experience running Kubernetes on bare metal (not just managed services)
Expert-level knowledge of Linux internals (cgroups, namespaces, kernel networking)
Deep experience with CNIs (Cilium, Calico), load balancers (Envoy, HAProxy, F5), and L3 networking (BGP, ECMP)
Proven track record provisioning and operating physical servers at scale (PXE/iPXE, Tinkerbell, MAAS, BMC/IPMI automation)
Strong programming skills in Go for building operators, controllers, and automation tooling
Hands-on experience with distributed storage systems (Ceph, MinIO, Rook, CSI drivers)
Strong background in observability (Prometheus, Alertmanager, metrics autoscaling, logging/ELK)
Familiarity with PKI, identity, and secrets management (Vault, cert-manager)
Excellent debugging skills for complex distributed systems
Strong communication and collaboration across cross-functional teams
Bonus: Experience with hardware fleet management across multiple datacenters
Bonus: Contributions to open source Kubernetes or related ecosystem projects
Bonus: Experience implementing disaster recovery strategies at scale
Bonus: Familiarity with GPUs, HPC clusters, or large-scale AI/ML workloads