Senior Product Designer
San Francisco, CAFull-timePosted todayStill listed today
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Job overview
Reactor is building an inference platform for real-time world models and seeks a designer to shape how people interact with these capabilities. The designer will own product design end-to-end, from defining problems and exploring solutions to shipping polished experiences and iterating on real usage. The role spans web and mobile, design systems, rapid prototyping, user research, and close collaboration with engineering and product.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Senior Product Designer Department: Engineering Employment Type: Full Time Location: San Francisco
Description Reactor is building the inference platform for real-time world models. We run the largest and fastest catalog of world models on the market (15+ and growing), including LingBot World 2, LTX 2.5 Realtime, and HappyOyster. Our founders, Alberto Taiuti (CEO) and Bryce Schmidtchen (CTO), met as technical leads on the early Apple Vision Pro team. Alberto went on to co-found Luma AI, now a $4B company. We've raised $59M, led by Lightspeed, with Amplify Partners, WndrCo, and NVIDIA's NVentures participating. Jeffrey Katzenberg, cofounder of Dreamworks Animation, sits on our board of directors.
Real-time video AI and world models are about to change how people interact with computers, with each other, and with the physical world. We're building that future at Reactor. This role is your chance to design how it feels to use and interact with these capabilities.
You'll own design at Reactor end-to-end. That means defining the problem, exploring solutions, shipping polished experiences, and iterating on real usage. The interfaces for this technology don't exist yet, so you won't be following established patterns. You'll be creating new ones.
What You'll Do
- Own product design end-to-end: problem definition, exploration, execution, and post-launch iteration
- Design experiences across web and mobile contexts
- Build and maintain our design system: components, tokens, and documentation
- Prototype rapidly using Figma and AI-assisted tools to validate ideas before committing to build
- Collaborate closely with engineering and product to ship high-quality work, fast
- Run lightweight user research and incorporate feedback into design decisions
- Occasionally support brand, pitch decks, and visual assets as needed
What We're Looking For
- Proven track record shipping product work. Show us things you've designed that are live and loved
- Deep experience with design systems: components, tokens, and collaborating with engineers to maintain them
- Strong end-to-end feature ownership in a fast-paced, ambiguous environment
- A craftsperson's eye for typography, spacing, color, motion, and visual detail
- Comfort with rapid prototyping and "vibe coding". You use modern tools to move fast, even if you're not writing production code
- User research instincts: you talk to users, test assumptions, and let data inform your work
- Strong communication skills. You can articulate design rationale and align cross-functional teams
- Accessibility awareness baked into your process
Nice to Have
- Familiarity with generative AI, LLMs, or real-time media UX patterns
- Frontend literacy: React, TypeScript, or CSS knowledge that helps you collaborate with engineers
- Motion design experience (Framer Motion, After Effects, or similar)
- Graphic design chops for brand and marketing needs
Benefits
- Competitive SF salary and meaningful early equity
- Visa sponsorship and relocation support
- Generous health, dental, and vision coverage
How this job compares
Set against the 1,840 open Product Designer jobs on Olive Jobs, counted October 30, 2026.
- Pay
- This postingNot listed
- California median$166–229K/yr491 salary ranges
- US median$36–71/hr52 hourly ranges
- Openings
- Olive Jobs lists 649 open Product Designer jobs in California and 1,840 across the US. 9% of them nationwide are listed as remote or flexible.
- Experience
- Product Designer postings that state a minimum ask for 5 years of experience at the median; the middle half ask for 4 to 7 years (1,444 postings).
- Education
- 364 of the 1,840 open Product Designer jobs (20%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on October 30, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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