Senior Frontend Engineer (React) – Onsite CA, Equity

Emerald Advantage Concepts LLC; Redwood City (CA); On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

Competitive compensation

Meaningful equity

Medical, dental, vision coverage

Visa sponsorship

Job summary

Emerald Advantage Concepts LLC in Redwood City, CA, is seeking a Senior Frontend Engineer to join a fast-growing AI startup. You’ll own frontend features end-to-end, work with React/TypeScript, and collaborate closely with backend engineers to craft high-quality user experiences.

You’ll partner with the founders to shape product direction, build dashboards and AI interfaces, and contribute to frontend architecture in a high-ownership environment.

Qualifications

• 3–7 years of professional frontend engineering experience.
• Expert-level React development experience.
• Strong production experience with TypeScript.
• Experience with Node.js in production environments.
• Bachelor’s degree in Computer Science or a related technical discipline.
• Experience working at a high-growth startup or well-known technology company.
• Ability to write clean, production-quality React code without relying on AI-generated solutions.

Responsibilities

• Design and build high-performance frontend applications using React and TypeScript.
• Own frontend features from architecture through deployment.
• Develop dashboards, analytics tools, customer portals, and AI workflow interfaces.
• Collaborate closely with backend and full-stack engineers to deliver exceptional user experiences.
• Work directly with customers to solve real-world problems and continuously improve the platform.
• Help shape frontend architecture and engineering best practices in a fast-moving startup environment.

Skills

React

TypeScript

Node.js

Education

Bachelor's degree in Computer Science or related field

Job description

Emerald Advantage Concepts LLC in Redwood City, CA, is seeking a Senior Frontend Engineer to join a fast-growing AI startup. You’ll own frontend features end-to-end, work with React/TypeScript, and collaborate closely with backend engineers to craft high-quality user experiences.

You’ll partner with the founders to shape product direction, build dashboards and AI interfaces, and contribute to frontend architecture in a high-ownership environment.