Senior Fullstack Engineer - China at whatnot

This role is for a versatile Senior Engineer with at least 4 years of experience who thrives in a fast-paced, product-driven environment. You’ll be joining the Games & Buyer Ecosystem Team in China, specifically tasked with building features for the US and European markets. The ideal candidate has a strong balance of frontend and backend skills and prioritizes user experience over technical perfection. You will focus on "gamifying" the shopping experience, creating interactive challenges, reward systems, and virtual point systems to drive engagement. This is a high-impact opportunity to work for one of the fastest-growing marketplaces in the world, operating within a "remote co-located" structure that emphasizes lightning-fast shipping and lean, high-action teams. **You might be a good fit if you...** * Have a proven track record of shipping user-facing features quickly and independently. * Are comfortable working across the full stack, including mobile, web, and backend services. * Possess strong product instincts and enjoy designing gamified mechanisms like task systems or promotions. * Can communicate effectively in English (written and verbal) within a global team environment.