Senior Frontend Engineer — Greenfield AI UI, Equity

Harrison Clarke; Seattle (WA); On-site; USD 315,000 - 385,000; Full time

Benefits offered by this job

Equity

Chance to work on defining a new AI产品

Job summary

Harrison Clarke seeks an experienced Frontend Engineer to own the frontend from day one for a high-growth AI startup. You will shape architecture decisions in collaboration with founders and product teams, building intuitive interfaces that translate complex AI capabilities into accessible user experiences.

We value a deep React and TypeScript skill set, a eye for UI/UX, and the ability to scale frontend infrastructure to support large, concurrent users.

Qualifications

• 6+ years of front end engineering experience and at least one 0-1 product build.
• Deep proficiency in React and modern TypeScript.
• Experience scaling frontend infrastructure for large, concurrent users.
• Strong UI/UX sense and pride in what you ship.
• Comfort in fast-moving, ambiguous environments with shifting priorities.
• Bonus: familiarity with LLM APIs, streaming interfaces, or real-time data pipelines.

Responsibilities

• Own the frontend from the ground up within a high-growth AI startup.
• Shape product architecture decisions early and align with founders and product teams.
• Build interfaces that simplify complex AI capabilities for end users.

Skills

React

TypeScript

Frontend architecture

UI/UX sensibility

Frontend scalability

LLM API integration (bonus)

Tools

LLM APIs

Streaming interfaces

Real-time data pipelines

Job description

Harrison Clarke seeks an experienced Frontend Engineer to own the frontend from day one for a high-growth AI startup. You will shape architecture decisions in collaboration with founders and product teams, building intuitive interfaces that translate complex AI capabilities into accessible user experiences.

We value a deep React and TypeScript skill set, a eye for UI/UX, and the ability to scale frontend infrastructure to support large, concurrent users.