Sr. Full Stack Engineer

At Tapcart, we believe every brand needs a direct relationship with their customers • one they actually own. We are the mobile commerce engine that powers shopping for Shopify's fastest-growing brands. $15B+ in revenue processed. 200M+ shoppers worldwide. Brands like Princess Polly, Béis, Forever 21, and Young LA rely on us to power a large portion of their revenue. We're a lean team with minimal management and big autonomy. Everyone here builds and code is core to what we do • engineers, product, leadership. We use our own platform, we talk to merchants daily, and we ship constantly. Backed by Shopify, Silver Lake and other top VCs. Profitable and growing If you want a place where you own real outcomes, not just tickets, you'll fit in. WHY YOU SHOULD JOIN TAPCART, WHEN YOU HAVE A SEA OF OTHER OPTIONS? • You want to work with colleagues who have high standards and who love building beautiful, performant software • You prefer the dopamine of working on software that will get into hundreds of millions of users' hands, vs working on enterprise, forward-deployed software WE DEEPLY CARE ABOUT USING AI IN OUR WORK. DON'T PROCEED WITH APPLYING IF: • You don't love agents / don't use them daily • You don't value craft and cannot speak to software that inspires you WHAT YOU’LL BE WORKING ON AT TAPCART • Architect and ship core product that feels durable, fast and clean. Work across multiple stacks to deliver impact. • Design our proactive AI agent orchestration layers used by thousands of high growth brands • Prototype new interaction patterns for human-agent collaboration • Raise our bar for engineering craft, help with recruiting, and hold the line on quality • Dogfood the platform and our apps every day :) You'll be a true owner, from prototype to production, and work side‑by‑side with the CEO, design, and key stakeholders, all while staying close to merchants to deliver value early and iterate quickly. QUALIFICATIONS • 5+ years of engineering and product work • Demonstrated skills across frontend, backend and database layers • A Github that is more green than black SALARY RANGE $175,000 - $350,000 • we pay for exceptional BENEFITS Competitive salary and equity. Medical, dental, vision. 401(k). Flexible PTO. Remote-friendly. Home office stipend. Quarterly merchant stipend. Lots of swag drops