Staff Frontend Engineer, Dc Infrastructure Tooling

Weights & Biases Weights & Biases · Data AI · Bellevue, WA +4 · Technology

CoreWeave is seeking a Staff Frontend Engineer to build high-performance internal tooling for managing massive physical datacenter infrastructure. The role involves owning the UI layer for applications that visualize and plan network switches, GPUs, servers, and other hardware, with a critical focus on performance and rendering millions of objects. The engineer will make foundational technology decisions, establish architecture, and work closely with backend engineers to ensure seamless integration and data handling. The ideal candidate has deep TypeScript/React expertise, experience with large datasets and performance optimization, and a strong understanding of frontend architecture.

What you'd actually do

  1. Extremely high-performance interfaces for visualizing and planning datacenter infrastructure, often rendering massive amounts of structured records (device inventories, cable plans, rack assignments, power allocations) with sub-second interaction and filtering.
  2. Interactive planning tools for rack elevations, floor layouts, power distribution, and network topology that let engineers design, model, and validate builds before physical work begins.
  3. Data-dense views and dashboards that serve as the authoritative source for build planning and asset tracking across CoreWeave's global footprint.
  4. The frontend architecture from the ground up: component library, state management, data fetching patterns, and build tooling designed to scale with the team and product scope.
  5. Tight integrations with backend APIs (likely gRPC, GraphQL, or REST), collaborating closely with backend engineers to shape API contracts that support the performance and data complexity the UI demands.

Skills

Required

  • TypeScript
  • React
  • building interfaces that handle large, complex datasets with extreme performance requirements
  • virtualized rendering
  • canvas or WebGL-based visualization
  • efficient DOM management
  • frontend architecture
  • component design
  • state management
  • data fetching and caching patterns
  • build tooling
  • designing and consuming APIs
  • type safety
  • pagination
  • caching
  • error handling
  • frontend performance optimization
  • bundle analysis
  • runtime profiling
  • working directly with infrastructure engineers
  • making early architectural decisions
  • 7+ years of professional frontend engineering experience
  • senior-level ownership of production systems
  • foundational architectural decisions
  • influence technical direction
  • Strong communication skills

Nice to have

  • Direct experience with datacenter operations, infrastructure planning, or familiarity with DCIM tools like NetBox or Sunbird.
  • Experience working alongside backend teams writing Go
  • comfort collaborating on API design across the stack
  • Infrastructure-as-Code
  • Kubernetes
  • cloud platform concepts
  • frontend observability
  • CI/CD pipelines
  • modern build systems

What the JD emphasized

  • Performance is non-negotiable
  • render and interact with millions of objects per build without breaking a sweat
  • Deep proficiency with TypeScript and React. You should be the kind of engineer who understands React's rendering model at a low level and can make deliberate decisions about when and how components re-render.
  • Demonstrated experience building interfaces that handle large, complex datasets with extreme performance requirements: virtualized rendering, canvas or WebGL-based visualization, efficient DOM management, or similar techniques.
  • Track record of frontend performance optimization: bundle analysis, runtime profiling, and making data-heavy UIs feel fast under real load.
  • 7+ years of professional frontend engineering experience, with meaningful senior-level ownership of production systems. For Staff level: demonstrated ability to make foundational architectural decisions and influence technical direction beyond your immediate team.