> Markdown version of [/jobs/ext/3801930-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/3801930-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Frontend Engineer - **Company:** SpreeAI Corporation - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Code Review, Node.Js, Performance Tuning, Shopify, Software Engineering, Web Content Accessibility Guidelines, ReactJS, Backend, Front End Software Development, React Redux, Api Management - **Published:** October 17, 2026 - **Apply:** https://www.careerbuilder.com/job-details/frontend-engineer-san-francisco-ca--b894f9f4-5f66-412c-a740-d08503bcb564 ## About the Role * 3+ years building production React.js applications * Strong grasp of modern state management (Redux Toolkit, Zustand, or React Query) and component architecture (hooks, context, memoization) * Experience with performance optimization (code splitting, lazy loading, virtualized lists) and accessibility (WCAG 2.1, ARIA, keyboard navigation) * Comfort working directly against backend APIs and iterating quickly in an ambiguous, fast-moving environment * Nice to have: Shopify app development, embeddable SDK/widget experience, or other e-commerce integration work You'll thrive here if You take full ownership of what you build, from design through production, and you sweat the details that make an interface feel polished rather than just functional. You're comfortable being the person closest to a customer-facing surface, and you communicate proactively when something's at risk rather than waiting to be asked. ## Description SPREEAI is a fast-growing, innovative AI company at the forefront of fashion and e-commerce, revolutionizing how consumers engage with fashion through lifelike photorealistic try-on technology and hyper-personalized shopping experiences. Our mission is to redefine the retail landscape with cutting-edge AI solutions that blend high fashion and technology. We thrive in a dynamic, fast-paced environment where creativity meets technology to drive real impact. If you are passionate about innovation and shaping the future of fashion, SPREEAI offers a platform to make your mark.About the teamPartner Engineering builds every customer-facing touchpoint for our brand partners: mobile SDKs, web integrations, and the onboarding surfaces partners use to get live on SPREEAI. It's a small, high-leverage team, everything you ship is something a partner will touch directly.About the roleRight now, one engineer owns frontend work across every partner-facing surface we have: the Partner Portal, our Shopify onboarding flow, the demo site, and the Rescale App. That's a single point of failure we need to remove, and a bottleneck on how fast we can bring new partners online. This is a newly opened, priority hire, you'll take ownership of that surface area and give the team room to move faster.What you'll doBuild and maintain React.js interfaces for the Partner Portal, Shopify onboarding flow, demo site, and Rescale AppPartner closely with backend engineers (Go/Node) to design clean, well-scoped API contracts for partner-facing featuresOwn frontend performance, accessibility, and polish, the Partner Portal is often a brand partner's first hands-on impression of SPREEAIWork directly with product and partner engineering leads to turn onboarding requirements into shipped featuresHelp set frontend engineering practices, code review norms, testing, component patterns, as the team growsWhat you'll bring3+ years building production React.js applicationsStrong grasp of modern state management (Redux Toolkit, Zustand, or React Query) and component architecture (hooks, context, memoization)Experience with performance optimization (code splitting, lazy loading, virtualized lists) and accessibility (WCAG 2.1, ARIA, keyboard navigation)Comfort working directly against backend APIs and iterating quickly in an ambiguous, fast-moving environmentNice to have: Shopify app development, embeddable SDK/widget experience, or other e-commerce integration workYou'll thrive here ifYou take full ownership of what you build, from design through production, and you sweat the details that make an interface feel polished rather than just functional. You're comfortable being the person closest to a customer-facing surface, and you communicate proactively when something's at risk rather than waiting to be asked.