Staff Frontend Engineer

Harrison Clarke; Bellevue (WA); On-site; USD 270,000 - 330,000; Full time

Job summary

Harrison Clarke is seeking a Staff Frontend Engineer to help shape an ambitious AI-driven product from an early stage. You’ll own frontend architecture, drive performance, and partner with product/design in Seattle-area offices (4 days in-office).

You bring expert React and TypeScript, a track record delivering complex apps, and a passion for owning technical direction in a fast-growing environment.

Qualifications

• Extensive experience with React and TypeScript.
• Strong track record delivering complex frontend applications.
• Ownership mindset and ability to influence design decisions.

Responsibilities

• Design and build polished, high-performance frontend experiences for an AI product.
• Drive frontend architecture and key technical decisions in React/TypeScript.
• Collaborate with product and design to translate complex ideas into intuitive UX.
• Solve performance and real-time challenges for AI-powered features.
• Establish engineering best practices and raise frontend standards.

Skills

React

TypeScript

Frontend architecture

Performance optimization

UI/UX sensibility

Job description

Location: Seattle, Bellvue (4 days in-office)

Type: Full-time, permanent

Package: Up to $300,000 total compensation

My client is developing an ambitious AI-driven product and is looking for an exceptional Staff Frontend Engineer to play a key role in shaping the product experience from an early stage.

This is a chance to join a small, high-calibre engineering team where frontend development sits at the heart of the product. You'll have significant ownership over architecture, user experience and technical direction, helping define how the product is built as the company grows.

What you'll be doing

• Designing and building polished, high-performance frontend experiences for a next-generation AI product.
• Driving frontend architecture and influencing key technical decisions across React, TypeScript and scalable application design.
• Partnering closely with product and design teams to transform complex concepts into intuitive, seamless user experiences.
• Solving technically challenging problems involving performance, real-time functionality and AI-powered interactions.
• Establishing engineering best practices, raising technical standards and helping shape the frontend culture as the team expands.

Who they're looking for

An outstanding frontend engineer with extensive experience in React and TypeScript, excellent product judgement and a strong track record of delivering complex, high-quality applications. Someone who combines deep technical expertise with strong design sensibilities, enjoys taking ownership and thrives in fast-paced, high-growth environments.

What's in it for you?

• Significant ownership. Take the lead on frontend architecture and help shape the product from an early stage.
• Cutting-edge technology. Build AI-native experiences and tackle challenges that go well beyond traditional frontend engineering.
• Direct impact. Work alongside a talented team with a genuine influence on product and engineering decisions.
• Room to innovate. Work with modern technologies, solve ambitious problems and have the freedom to build things the right way.
• Get in early. Join an exciting, well-backed company at a pivot al stage, where your work can have a lasting impact.