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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

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.

Company

Symbolica AI

Symbolica AI

Artificial Intelligence

$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.

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