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vCluster Labs is seeking a Senior Software Engineer (Backend) to architect and build core infrastructure for the vCluster Platform, a Kubernetes-native tenant isolation solution used by leading AI cloud providers and Fortune 500 companies. The company is venture-backed (raised $28M+ from Khosla Ventures and others), headquartered in San Francisco, and operates a remote-first, globally distributed team.
In this role, you will:
- Work deeply with Kubernetes internals to push the boundaries of container orchestration and tenant isolation, moving beyond simple namespace-based approaches.
- Write high-performance, resilient Go code that powers the core logic of the vCluster platform.
- Own features end-to-end, from technical design through release, with minimal oversight. You are self-driven and capable of identifying and solving problems autonomously.
- Engage with the open-source community, contribute to vCluster's public projects (11,000+ GitHub stars, 40M+ tenant clusters created since 2021), and help define next-generation tenancy models.
- Tackle hard systems engineering challenges that require deep architectural understanding rather than surface-level solutions.
vCluster Labs powers over 100,000 GPUs and 1 million CPUs across 50+ AI clouds. The platform enables AI cloud providers to deliver hyperscaler-like experiences on their own infrastructure, automating the full stack from bare metal provisioning through managed Kubernetes, Slurm, Ray, and inference clusters.
The team is 40+ infrastructure engineers who build alongside customers. The company culture emphasizes action, ownership, open-source contribution, and defining tomorrow's standards in infrastructure.
REQUIREMENTS:
- Deep expertise in Kubernetes internals: architectural patterns, networking, storage, and how Kubernetes works at a fundamental level.
- Strong programming skills in Go; ability to translate Kubernetes knowledge into clean, efficient code.
- Builder mindset: active GitHub projects, experiments, or open-source contributions demonstrating passion for building.
- High agency and self-driven approach; comfortable identifying and solving problems autonomously.
- Experience in high-growth, startup environments; comfort with ambiguity and desire to make measurable impact.
BONUS:
- History of contributions to the Kubernetes project upstream (PRs, documentation, SIG participation).
- Early-stage startup experience where you functioned autonomously.
