Sr. Software Engineer - Tapcart

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. With $15B+ in revenue processed and 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, and leadership alike. We use our own platform, talk to merchants daily, and ship constantly. Backed by Shopify, Silver Lake, and other top VCs, we are profitable and growing.

If you want a place where you own real outcomes, not just tickets, you'll fit in.

Why Join Tapcart?

• Work with colleagues who have high standards and love building beautiful, performant software.
• Experience the dopamine of working on software that gets into hundreds of millions of users' hands, vs. enterprise, forward-deployed software.

What You’ll Be Working On

• Architect and ship core products that feel durable, fast, and clean. Work across multiple stacks to deliver impact.
• Design proactive AI agent orchestration layers used by thousands of high-growth brands.
• Prototype new interaction patterns for human-agent collaboration.
• Raise the 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, working side-by-side with the CEO, design, and key stakeholders, 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 profile that is more green than black.
• Experience using AI agents daily and a strong appreciation for software craft.