Principal Frontend Engineer, AI Product UX

• You're deeply product-oriented. You enjoy engaging with customers and learning a new domain. You think beyond implementation details and care how technical decisions shape user behavior and product outcomes.
• You're a builder at heart. You've shipped meaningful products used by real customers. You likely have side projects, strong opinions about technology, and genuine curiosity about where AI is heading. You are a creator.
• You operate with urgency and ownership. You move quickly without sacrificing reliability or trust. You proactively identify problems, communicate clearly, and drive solutions.
• You elevate the people around you. You bring strong engineering judgment, high standards, and collaborative energy. Teams become stronger when you're involved.
• You're excited by difficult workflow problems. Complex systems, making sense of dense information and documents, operational tooling, and AI-assisted decision-making genuinely interest you.

What You'll Bring On The Technical Side

• Deep proficiency in React and TypeScript, and a clear sense of how to architect Front End systems that can extend and scale.
• Comfort working across the stack when it matters - you can read and reason about our Go/Python Back End even if you don't live there.
• Experience building AI-native interfaces or complex, data-dense applications. Bonus if you've worked on document review, decisioning, or workflow products.
• Track record of leading a product surface end-to-end - not just features.

Compensation And Benefits

• Competitive compensation calibrated to senior/principal-level engineers in San Francisco
• Meaningful equity ownership
• Full medical, dental, and vision coverage
• 401(k) with company match
• Flexible vacation policy
• Parental leave
• Learning and professional development support

AI is transforming mortgage lending, yet underwriting decisions still require humans to verify, interpret, question, and approve what AI systems produce. The challenge is not just automation, but designing interfaces that help professionals confidently work alongside AI in high-stakes financial workflows. We've built an AI underwriting platform, MIRA, that has automated more than two million appraisal reviews, reducing review time by 75% and doubling underwriter productivity. Now we're expanding into the full underwriting workflow, creating the first end-to-end AI underwriting utility for the industry. What You'll Do * Define the future of AI-assisted underwriting. Design and build workflows that help underwriters, processors, and loan officers confidently work alongside AI systems and build trust. Create intuitive UX patterns for explainability, auditability, exception handling, and human-in-the-loop review. * Own the cross-platform Front End and design system. Lead the evolution of our Front End platform across web and future Embedded experiences, including in-document review and lender integrations. Architect components so the team can ship faster as we scale. * Raise the technical bar. Establish the Front End patterns, libraries, and review standards the rest of the engineering team builds against. Mentor and recruit the engineers who will work alongside you. * Ship fast and learn faster. Take features from rough ideas to production in days, not weeks. Watch how customers actually use them and rapidly iterate. * Drive tools and process improvement. Share ideas and test tools that accelerate prototyping to production at higher velocity and quality.