As the founding Lead Frontend Engineer, you will bridge the gap between deep mathematical research and real-world application. You will own the entire developer-facing experience for a state-of-the-art agentic framework, building the sophisticated interfaces that allow users to discover, build, and scale complex multi-agent systems with precision and reliability.
Lead Frontend Engineer at Symbolica AI
What if the next leap in AI isn't about bigger models, but better reasoning? This $30M+ SF-based research lab, backed by Khosla Ventures and General Catalyst, is hiring a founding Lead Frontend Engineer to define how the world interacts with the next generation of AI. Moving beyond simple neural networks, they are using category theory to build systems that actually reason. You will own the entire developer-facing experience, turning deep mathematical research into beautiful, functional products. If you are a high-craft engineer who lives at the intersection of design and code, this is your chance to shape the interface of intelligence.
Overview
Role overview
Company
Symbolica AI
$30M+ funded AI research lab backed by Khosla Ventures and General Catalyst
Responsibilities
What you will do
- Design and implement polished, responsive UI and interactive experiences that translate complex agentic systems into intuitive user flows.
- Lead the frontend architecture and vision for the company’s flagship developer product, ensuring seamless end-to-end integration across the stack.
- Create and maintain a robust design system and reusable component library that balances high-performance engineering with visual excellence.
Candidate profile
Who this is a fit for
- Expert in TypeScript and React with a proven track record of building scalable, data-intensive web applications using RESTful APIs or GraphQL.
- Exceptional design sense with the ability to translate abstract technical concepts into beautiful, accessible, and highly functional user interfaces.
- High-velocity prototyper who is equally comfortable shipping production-ready code and advocating for developer experience at industry workshops and events.
What makes it remarkable
Why this role is remarkable
- Sit at the intersection of deep research and productization, working with a team that set a new public SOTA (85.28%) on ARC-AGI-2.
- Join a high-conviction, ~30-person team backed by top-tier investors including Khosla Ventures, General Catalyst, and Abstract Ventures to rethink AI foundations.
- Direct ownership of the flagship product experience from day one, defining the visual identity and usability of the next generation of reasoning AI.
Jack & Jill
How Jack & Jill work together
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
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.