Mediabistro logo
job logo

Senior Full-Stack Engineer: Real-Time UI & GraphQL APIs

Cobalt AI, San Francisco, CA, USA

Pay: 125.000

Job type: Full Time


Requirements

  • 5+ years of professional software engineering experience, with depth in frontend development
  • ,
  • Strong proficiency in React and TypeScript — opinionated about component architecture, state management, and rendering performance
  • ,
  • Experience building complex, interactive UIs — canvas/2D rendering, real-time streaming, data visualization, or WebRTC
  • ,
  • Backend fluency in Python and Django — building GraphQL APIs, writing migrations, and optimizing ORM queries
  • ,
  • Solid understanding of PostgreSQL — data modeling, indexing, and query performance
  • ,
  • Comfort working in a monorepo with shared packages, generated types, and cross-team code ownership
  • ,
  • Experience deploying to AWS and working with containerized applications

What the job involves

  • We’re hiring a Senior Full Stack Engineer to own the interfaces that security teams rely on every day, including live robot video feeds, event triage workflows, real-time alarm dashboards, and fleet management tools built in React and TypeScript
  • ,
  • You’ll also work across the backend (Django/Python, GraphQL) to build the APIs that power those experiences
  • ,
  • Build and refine real-time security dashboards, event triage interfaces, and fleet management tools used by security teams 24/7
  • ,
  • Design and implement complex, interactive UIs — canvas rendering (environment maps, robot positioning), data visualization, live robot video via WebRTC, and subscription-driven event streaming
  • ,
  • Own component architecture in a monorepo and contribute to a Storybook-driven design system
  • ,
  • Build and extend the GraphQL API — queries, mutations, and WebSocket subscriptions — serving all frontend applications
  • ,
  • Work with Django models in PostgreSQL — multi-tenant data isolation, schema design, query optimization, and migrations
  • ,
  • Ship full-stack features end-to-end — from React components to GraphQL mutations to Django models and background jobs
  • ,
  • Partner with the CDS and ML teams on the detection-to-event pipeline
  • ,
  • Write well-tested code with strong observability — tracing, structured logging, and metrics
  • ,
  • Participate in code reviews, architectural discussions, incident response, and on-call rotations

#J-18808-Ljbffr