As a Founding Engineer at Sekai, you will build and define our native Android foundation from the ground up. You will architect the mobile platform that enables creators to instantly turn AI-powered ideas into interactive, playable experiences. This high-impact role involves designing core navigation, lifecycle management, and seamless hybrid integrations for millions of users.
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Founding Engineer at Sekai
Join Sekai as a Founding Engineer and build the 'TikTok for mini-apps'—an AI-powered platform where anyone can turn ideas into playable experiences instantly. You’ll own the native Android foundation from the ground up, architecting the future of interactive content in a fast-paced, AI-native environment. This is a rare opportunity to define a new category of mobile social media and work directly with world-class founders in San Francisco.
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Location
San Francisco, United States
Compensation
Not Disclosed + Equity
Company
Sekai
About this role
Role overview
About the company
Sekai is an AI-powered interactive content platform that lets people play, create, remix, and share mini-apps and mini-games instantly. Users can describe an idea and turn it into a playable experience in seconds, then explore an infinite feed of community creations and remix others’ experiences.
What you'll do
What you will do
- Architect and build the native Android experience, including app shell architecture, navigation, and core lifecycle management.
- Implement complex hybrid integrations between native Kotlin and React Native, Flutter, or WebView-based interactive experiences.
- Partner with AI and design teams to ship high-performance, polished consumer features that drive engagement for millions of users.
Who you are
Who this is a fit for
- Has 5+ years of professional Android engineering experience with deep expertise in Kotlin and the Android SDK.
- Demonstrates a proven track record of shipping consumer-facing mobile apps and building technical platforms from 0 to 1.
- Possesses experience integrating hybrid frameworks like React Native or Flutter into native Android environments within high-growth startups.
Why this role
Why this role is remarkable
- Founding-level ownership at an AI-native startup backed by top-tier investors including Khosla Ventures, a16z, Mayfield, and A*.
- Build the first platform where interactive content moves at the speed of social media, reaching over 1M creators and players.
- Directly shape the technical architecture and product vision alongside a world-class team of engineers from Google and ETHDenver.
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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
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 your profile’s a match and Sekai wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.