Job Details

Overview

Lead Frontend Engineer – AI Agentic Systems

Symbolica is an AI research lab pioneering the application of category theory to enable logical reasoning in machines. We are a well-resourced, nimble team on a mission to bridge the gap between theoretical mathematics and cutting-edge technologies, creating symbolic reasoning models that think like humans—precise, logical, and interpretable. Our approach combines rigorous research with fast-paced, results-driven execution, reimagining the foundations of intelligence while developing product-focused machine learning models in a tight feedback loop where research fuels application. Founded in 2022, we have raised over $30M from leading Silicon Valley investors to push the boundaries of applying formal mathematics and logic to machine learning. Our vision is to create AI systems that transform industries by empowering machines to solve humanity's most complex challenges with precision and insight.

We are looking for a LeadFrontend Engineer who will work on a highly technical interface for deploying AI systems. You will own building and iterating on functional prototypes for potential customer use cases, ensuring seamless end-to-end integration across the stack, and collaborate with our research team to create interactive interfaces that bring agentic systems to life. This is an onsite role based in our SF office (345 California St).

Your Focus

• Own and develop a vision for how developers discover, onboard, build, and scale applications with Symbolica's flagship product.
• Design and implement intuitive, responsive UI for complex systems.
• Build, test, and iterate on functional prototypes based on real user needs.
• Collaborate with researchers, engineers, and product leads to turn ideas into polished features.
• Create and maintain reusable frontend components and design systems.
• Debug performance issues and run A/B tests to continuously improve UX.
• Attend developer events and workshops to introduce, prototype, and teach technical audiences how to build and deploy complex multi-agent systems; translate external feedback to build user empathy and advocate for developer experience internally.

About You

• Excellent at translating complex ideas into simple, usable UI.
• Proficient in TypeScript and React.
• Passionate about seamless design and building products with an excellent developer experience.
• Comfortable prototyping quickly and shipping production-ready code.
• Experience working on machine learning and/or AI projects is a plus.
• Experience building scalable, data-intensive web apps, including RESTful APIs and GraphQL.
• Commitment to writing clean, maintainable, and well-documented code.
• Effective communication skills and a collaborative mindset to work across diverse teams.

What We Offer

• Competitive salary and early-stage equity package.
• A high-trust, execution-first culture with minimal bureaucracy.
• Direct ownership of meaningful projects with real business impact.
• A rare opportunity to sit at the interface between deep research and real-world productisation.

Symbolica is an equal opportunities employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, gender, age, religion, disability, or sexual orientation.