Frontend Engineer / React

Oscar; San Francisco (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Equity

Paid Time Off

Medical, dental, and vision coverage

401(k) matching

Job summary

Oscar is seeking a Frontend Software Engineer / React to help scale customer-facing applications. You will be the second frontend hire, operating with high ownership to define frontend direction and best practices.

The role focuses on building React apps, collaborating with backend, product, and partner teams, and leveraging experience with Redux Toolkit, Zustand, or React Query to optimize performance and accessibility.

Qualifications

• 3+ years of experience building production React applications.
• Strong experience with React architecture and state management tools (Redux Toolkit, Zustand or React Query).
• Experience integrating with backend APIs and delivering customer-facing features.

Responsibilities

• Build and ship React applications with a focus on quality and performance.
• Collaborate with backend, product, and partner teams to shape frontend direction.
• Establish best practices and contribute to the frontend technical direction.

Skills

React

Redux Toolkit

Zustand

React Query

Performance optimization

Accessibility

Frontend architecture

Team collaboration

Tools

Redux Toolkit

Zustand

React Query

Job description

Title: Frontend Software Engineer / React

A B2B growing AI startup is hiring a Frontend Software Engineer to help scale their customer-facing applications. You'll be the second frontend hire working in a high-ownership environment, helping build new products while establishing best practices and contributing to the technical direction of the frontend stack.

This role is focused on building and shipping React applications while working closely with backend engineers, product, and partner teams. The ideal candidate is a strong React engineer who has experience with Redux, Zustand, or React Query. Performance optimization and accessibility experience is expected as well.

Experience

• 3+ years of experience building production applications with React
• Strong experience with React architecture and state management tools such as Redux Toolkit, Zustand, or React Query
• Experience working against backend APIs and building customer-facing features
• Experience working in fast-moving startup environments with high ownership
• Experience with eCommerce integrations, Shopify development, SDKs, or widgets is a plus
• Equity
• Paid Time Off
• Medical, dental, and vision coverage
• 401(k) matching
• Opportunity to create lasting impact within a growing organization
• High-ownership role with significant influence over the frontend product and technical direction