Multiple Engineering Roles

vCluster Labs builds the software layer that turns hardware into a cloud. One platform to turn raw compute into every kind of cluster, for the teams building AI infrastructure and the customers they serve. We're a VC-backed startup in hyper-growth and fully remote.
We have several open roles, here are a few to highlight:
Senior/Staff Backend Engineer — Build controllers and operators at the core of the platform. Strong fit if you've authored Kubernetes controllers/operators from scratch using kubebuilder, controller-runtime, or client-go. Apply: https://www.vcluster.com/careers?ashby_jid=516c8859-83be-4535-8d2d-32a305a07e6d#jobs or https://www.vcluster.com/careers?ashby_jid=7a0a3f38-e7bf-4078-a6ba-019762b94348#jobs
Senior Inference Engineer — Our first dedicated inference hire. Production deployment/serving experience with vLLM, SGLang, or TensorRT-LLM, hands-on inference optimization (quantization, batching, caching, routing), strong Python or Go.
Senior Application Security Engineer — Kubernetes internals from an exploitation/attack-surface perspective, hands-on container breakout and privilege escalation experience, real code-level security review, and threat modeling. Apply: https://www.vcluster.com/careers?ashby_jid=83c81a73-973f-406c-8482-64b09a968307#jobs
vNode Engineering Tech Lead — Build vNode, our tenant-isolation container runtime (Linux user namespaces and seccomp, no VM, no virtual kubelet). Container runtime internals (containerd, CRI-O, runc), Kubernetes node-level depth (kubelet, CRI layer), Linux isolation primitives (seccomp, user namespaces, cgroups). Apply: https://www.vcluster.com/careers?ashby_jid=c6a9423d-5f1f-4f47-ae49-1bf5888b0fdc#jobs
Full list of open roles: https://www.vcluster.com/careers
Feel free to reply here with any questions.