Principal Engineer, Cluster Orchestration
About the role
The AI infrastructure behind CoreWeave's largest GPU clusters determines workload placement, resource sharing, and system performance under constant pressure. As a Principal Engineer in AI Infrastructure, you will lead the design and evolution of orchestration systems, including Kubernetes, Slurm, SUNK, and related systems.
Responsibilities
Define long-term architecture for CoreWeave’s orchestration platforms across Kubernetes, Slurm, SUNK, Kueue, and related systems.
Make design decisions that balance performance, reliability, cost, and operational complexity.
Lead the evolution of Kubernetes-native control planes, including SUNK and custom operators.
Design systems that support workload admission, validation, and rollout, including model onboarding flows.
Identify and remove scaling limits across schedulers, control planes, registries, networking, and storage.
Set standards for reliability, observability, and operational readiness across orchestration services.
Define Service Level Objectives (SLOs), alerting, and incident response practices for platform-critical systems.
Ensure systems behave predictably during failures, peak load, and rapid growth.
Write and review production code for Kubernetes controllers, schedulers, admission logic, and internal tooling.
Measure and improve scheduling latency, container startup time, image distribution, and cold-start performance.
Lead architecture and design reviews across infrastructure teams.
Mentor senior and staff engineers and help grow technical leaders.
Influence platform, infrastructure, security, and product teams through clear technical judgment.
Engage with customers and open-source communities on deep technical topics when needed.
Requirements
15+ years of experience building and operating large-scale distributed systems.
Deep, practical knowledge of Kubernetes and Slurm internals.
Experience running GPU-heavy platforms for AI training, inference, or HPC workloads.
Strong background in Go and cloud-native systems development.
Proven ability to set technical direction across teams without direct authority.
Comfortable making high-impact technical decisions in complex systems.
Bachelor’s or Master’s degree in a relevant field, or equivalent experience.
Preferred Qualifications
Experience with systems such as Kueue, Kubeflow, Argo Workflows, Ray, Istio, or Knative.
Background in ML platform engineering, model onboarding, or lifecycle management.
Strong understanding of scheduling strategies, pre-emption, quota enforcement, and elastic scaling.
Track record of operating highly reliable systems with clear SLOs and incident processes.
Contributions to Kubernetes, ML infrastructure, or related open-source projects.
Experience mentoring senior engineers and raising engineering standards.