Sr. Full Stack Engineer at Tapcart Inc. (Santa Monica, CA)
Tapcart Inc.· Santa Monica, CA· $175k–$350k·
Role details
Competitive Salary · Equity · Medical Insurance · Dental Insurance · Vision Insurance · 401(K) · Flexible PTO · Remote-Friendly
Summary
Tapcart is seeking a Senior Full Stack Engineer to architect and ship core product features, design AI agent orchestration layers, and prototype human-agent collaboration patterns. The role involves working across frontend, backend, and database layers to deliver high-performance software for a global mobile commerc...
Job description
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
Why work at Tapcart Inc.
- Remote-first culture – “Work, your way, wherever you are” – home office setup budget provided.
- Benefits: Health & wellness coverage (medical, dental, vision + HSA), 401(k), equity, flexible PTO, 11 paid holidays, paid parental leave (birthing, non-birthing, adoption, foster).
- Perks: Shopping stipend to use on Tapcart merchant apps, one-time home office stipend.
- Culture: “Wildcards welcome” – values include “Caring” and emphasis on impact at the intersection of tech, commerce, and entrepreneurship.
- Engineering focus: Senior React Mobile Engineer, Senior Fullstack Software Engineer roles open; small engineering team (25 technical staff) offers ownership and visibility.
- Interview process: 3 steps (intro chat, hiring manager, team meet) – designed to be smooth and transparent.