As a Senior React Native Engineer, you will own the entire mobile surface area of a voice-first AI product. You'll solve complex audio engineering challenges and craft premium, native-feel interactions that benchmark against Apple-grade quality. Joining an elite team from Uber and Cash App, you'll apply general intelligence to revolutionize human connection.
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San Francisco, USANot Disclosed
Featured roleSan Francisco, USANot Disclosed
Senior React Native Engineer at Known — AI-powered matchmaking startup
Join Known, the AI-powered matchmaker backed by Forerunner Ventures, to redefine consumer social through voice AI. We are looking for a Senior React Native Engineer to own our mobile surface and tackle complex audio challenges. This isn't another swipe-based app; it's a premium, craft-heavy product where users have 27-minute conversations with AI. If you've shipped high-quality mobile products at places like Discord or Tinder and want to build the next generation of human connection in the heart of San Francisco, this is your seat.
Overview
Why this role stands out
Company
Known - AI-powered matchmaking startup backed by Forerunner Ventures
Responsibilities
What you will do
- Own the full mobile surface including voice interaction flows, matching UX, and real-time state management.
- Solve complex audio engineering problems such as streaming, silence detection, and graceful degradation for voice AI.
- Collaborate deeply with design to translate high-fidelity intent into fluid animations and gesture-responsive interfaces.
Candidate profile
Who this is a fit for
- Extensive experience shipping high-quality React Native consumer products where mobile craft and performance were existential to retention.
- Deep technical background in audio, voice, or real-time media features like WebRTC, recording, and streaming playback.
- Proven track record as an early engineer (employee 1-30) at growth-stage companies like Clubhouse, Discord, or Tinder.
What makes it remarkable
Why this role is remarkable
- Work on a genuinely novel voice-first interaction paradigm where users engage in 27-minute average conversations with AI agents.
- Join a high-growth startup backed by top-tier investors including Forerunner Ventures (Decagon, Oura), NFX, and Pear VC as they approach Series A.
- High-autonomy environment in Cow Hollow, SF, collaborating with an elite engineering team from Uber, Afterpay, and Cash App.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack