Senior Frontend Engineer I - eCommerce

For our client, we are seeking a Senior Frontend Engineer I - eCommerce to join the team of a leader in the Healthcare space. This role will focus on delivering a high-performing, accessible booking and checkout experience that supports customer conversion in a healthcare setting. You will partner closely with Product and Marketing to ship experiments, improve funnel performance, and help shape the frontend architecture behind a high-traffic transactional journey. The ideal candidate brings deep experience with modern React development and a strong eye for usability, performance, and technical quality. This is an opportunity to build customer-facing experiences that directly influence how people engage with preventative healthcare services. Location: Remote - US based candidates only, no visa sponsorship available Compensation: $145,000 – $170,000 annually Responsibilities Own features within the booking experience, including checkout and payments Collaborate with Product and Marketing to ship and analyze experiments on the booking funnel Build fast, accessible features using React, Next.js, and TypeScript Contribute to frontend architecture and design, with a focus on sensible component boundaries Integrate the booking experience with APIs and third-party services Instrument features for performance and analytics while respecting customer consent Improve Core Web Vitals and rendering performance on a high-traffic funnel Qualifications 4+ years of professional frontend engineering experience, with 3+ years in React and TypeScript Strong experience with Next.js or similar React frameworks, including server-side rendering and routing Deep understanding of browser fundamentals, including semantic HTML and modern CSS Experience with data-fetching and state management patterns such as TanStack Query and Zustand Strong testing practices using tools such as Vitest, Testing Library, and Playwright Experience building transactional flows, particularly in checkout and payment systems Familiarity with web accessibility standards (WCAG 2.1 AA) and performance metrics (Core Web Vitals) Benefits Opportunity to positively impact people's health and lives Free whole-body scans for team members as part of preventative healthcare Growth opportunities tailored to individual career paths Weekly team gatherings to foster relationships and collaboration Flexible vacation policy to support work-life balance Commuter Benefits Plan to assist with transit and parking costs Comprehensive health, dental, and vision benefits, including mental health coverage Our client is an equal opportunity employer. We encourage you to apply even if you don’t meet every qualification—your background could be exactly what this team needs.