TwelveLabs · 2 hours ago
Staff Frontend Software Engineer
Los Angeles, CA
Full-time
Onsite
Lead/Staff
$198K/yr - $210K/yr
8+ years expTwelve Labs is pioneering the development of multimodal foundation models for video comprehension. They are seeking a Senior Frontend Engineer to build high-performance, video and data-centric applications, focusing on creating polished user experiences and collaborating across the technology stack.
Generative AIInformation TechnologySoftwareVideo
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
Qualification
Required
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
Preferred
Experience with editors or timeline-based interfaces
Optimizing large or real-time datasets in the browser
Familiarity with Vercel and frontend-focused CI/CD
Comfort using Docker for local development
Experience with AI- or ML-powered product features
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
Company
TwelveLabs
The world's most powerful video intelligence platform for enterprises.
11-50 employees
H1B Sponsorship
TwelveLabs has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
2024 (1)
2023 (4)
Funding
Current Stage
Early StageTotal Funding
$107.12MKey Investors
Firstman StudiosNaver VenturesNew Enterprise Associates,NVentures
2025-10-10Corporate Round
2025-06-09Series Unknown
2024-12-12Series A· $30M
Leadership Team
Jae Lee
Founder & CEO
Recent News
Index Ventures
2026-01-06
2025-12-05
intelcapital.com
2025-12-05
Company data provided by crunchbase