Lead Frontend Engineer - Agentic Interfaces Job at Zyphra (Palo Alto)

Job Description

As a Lead Frontend Engineer - Agentic Interfaces, you’ll lead the design and development of the user-facing side of our agentic system, shaping how users interact with AI across their desktop, browser, and filesystem. You’ll work across interface design, component libraries, and frontend infrastructure to craft seamless, accessible, and intuitive user experiences. You’ll work closely with engineers, ML researchers, and backend teams to bring intelligent agents to life in a way that’s beautifully simple and deeply useful.

Job Responsibility

Lead the design and development of the user-facing side of our agentic system, shaping how users interact with AI across their desktop, browser, and filesystem
Work across interface design, component libraries, and frontend infrastructure to craft seamless, accessible, and intuitive user experiences
Work closely with engineers, ML researchers, and backend teams to bring intelligent agents to life
Design and development of browser-based and desktop interfaces
Building and maintaining component libraries and styling systems
Researching and refining user flows based on real-world usage and feedback
Prototyping and implementing UI features in collaboration with ML, backend, and systems teams
Making a complex AI product feel simple, accessible, and empowering for a wide range of users

Requirements

Strong frontend engineering skills with fluency in HTML, CSS, and JavaScript/TypeScript
Experience with modern frontend frameworks such as React
Demonstrated attention to UI detail and usability, with a user-first mindset
Ability to prototype and iterate quickly, both in code and with design tools like Figma
Experience designing and developing responsive, accessible, and high-performance interfaces
Strong intuition for HCI principles, accessibility, and visual clarity
Excellent collaboration and communication skills—especially with engineers, designers, and ML researchers

Nice to have

Experience designing or building browser extensions or desktop applications (e.g., Electron, Tauri)
Experience with mobile platforms and responsive design (not required but helpful)
Prior work on products involving complex workflows, automation, or agentic behavior
Interest or experience in backend development, APIs, or AI systems to better interface with the full stack
Familiarity with accessibility standards and inclusive design best practices
A track record of launching polished and user-loved products
Passion for systems-level thinking: building reusable design systems, libraries, and scalable patterns
A clear, opinionated eye for elegant design and user delight

What we offer

Comprehensive medical, dental, vision, and FSA plans
Competitive compensation and 401(k)
Relocation and immigration support on a case-by-case basis
On-site meals prepared by a dedicated culinary team
Thursday Happy Hours
In-person team in Palo Alto, CA, with a collaborative, high-energy environment

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Lead Frontend Engineer - Agentic Interfaces

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