Senior Frontend Engineer

Job Title: Senior Frontend Engineer
Location: onsite in Seattle, WA

Role Overview
Design and build scalable, high-performance web applications using React and Next.js, owning frontend architecture, feature delivery, and collaboration across product, design, and backend teams.

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Key Responsibilities
Design and develop enterprise-grade frontend applications using React and Next.js

Own component design, and performance optimization

Contribute to and follow established frontend architecture

Implement responsive, accessible, and cross-browser compatible user interfaces

Integrate with backend APIs and manage asynchronous data flows

Apply state management patterns and frontend best practices

Ensure code quality, test coverage, and maintainability

Lead feature or module delivery end-to-end with minimal supervision

Collaborate closely with product, design, and backend engineering teams

Participate in code reviews, technical discussions, and solution design

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Required Qualifications
8+ years of frontend / software engineering experience

Expert proficiency in React.js with strong hands-on experience in Next.js

Strong command of JavaScript (ES6+), TypeScript, and JSX

Deep understanding of HTML5, CSS3, responsive design, and browser behavior

Experience with state management libraries (Redux, Context API, or similar)

Strong understanding of performance optimization and web vitals

Experience writing unit and component tests (Jest, React Testing Library)

Proficiency with build tools and package managers (Webpack, Vite, npm/yarn)

Strong experience with Git and collaborative development workflows

Excellent communication skills and ability to work cross-functionally