Sr. Full Stack Engineer

Tapcart; Santa Monica, Northern (CA, KY); Hybrid; USD 175,000 - 350,000; Full time

Benefits offered by this job

Competitive salary

Equity

Medical insurance

Dental

Vision

401(k)

Flexible PTO

Remote-friendly

Home office stipend

Merchant stipend (quarterly)

Swag drops

Job summary

Tapcart is seeking a senior software engineer to architect and ship a durable core product across frontend, backend, and database layers. You will help design AI agent orchestration used by thousands of fast-growing brands and prototype novel interaction patterns for human-agent collaboration.

You will raise the bar for engineering craft, assist with recruiting, and ensure quality while owning features from prototype to production.

Qualifications

• 5+ years of engineering and product work.
• Demonstrated skills across frontend, backend and database layers.
• A Github that is more green than black.

Responsibilities

• Architect and ship core product that feels durable, fast and clean.
• 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 :)

Skills

Frontend development

Backend development

Database

GitHub

Cross-functional collaboration

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