Hybrid Staff Frontend Software Engineer

Posted 4 days ago

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About the role

  • Senior Frontend Engineer building high-performance, video and data-centric applications at Twelve Labs. Leading client-side architecture with strong UX and collaboration on backend integration.

Responsibilities

  • Build performant, polished experiences with React and Next.js
  • Lead and evolve client-side architecture for interactive, video- and data-streaming products
  • Build fluid, asynchronous UIs with strong performance, micro-interactions, and intentional motion
  • Translate Figma designs into production-ready interfaces
  • Implement and optimize browser-based video and real-time data streaming
  • Build UIs that respond to incremental, real-time, or long-running streamed data, not just request/response flows
  • Handle large video and data workloads within browser constraints (memory, buffering, network variability)
  • Make informed tradeoffs around video formats, codecs, streaming, and transport
  • Optimize rendering for complex timelines, lists, and canvases
  • Write reliable unit, integration, and E2E tests for complex UI workflows
  • Use AI-assisted development tools thoughtfully to accelerate implementation while maintaining correctness, performance, and code quality
  • Design and integrate clean, well-scoped APIs to support streaming and async frontend workflows
  • Implement and integrate authentication flows (sessions, tokens, role-based access)
  • Collaborate with backend engineers on data models, streaming strategies, and performance tradeoffs

Requirements

  • 8+ years building production frontend applications
  • Deep experience with React and modern frontend patterns
  • Strong experience with Next.js & Tanstack Query
  • Strong client-side performance and UX instincts
  • Use of component libraries like shadcn & material ui
  • Experience building browser-based video and data streaming experiences
  • Working knowledge of HTML5 video APIs and streaming concepts
  • Comfort working across the stack and making pragmatic tradeoffs
  • Candidates must be able to travel up to 10% of the time annually to attend conferences, off-site meetings, and other business-related events as required by the role.

Benefits

  • Full health, dental, and vision benefits
  • Extremely flexible PTO and parental leave policy
  • Office closed the week of Christmas and New Years
  • VISA support where applicable

Job title

Staff Frontend Software Engineer

Job type

Experience level

Lead

Salary

$220,000 - $230,000 per year

Degree requirement

Bachelor's Degree

Location requirements

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