--- title: 'Sr. Full Stack Engineer at Tapcart Inc.' canonical: 'https://feeny.ai/job/sr-full-stack-engineer-tapcart-inc-santa-monica-yk3402gsv6pn' type: 'job' last_seen: '2026-09-09' --- # Sr. Full Stack Engineer at Tapcart Inc. - **Company:** Tapcart Inc. - **Location:** Santa Monica, CA - **Compensation:** $175k–$350k - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-06-25 - **Last confirmed live:** 2026-09-09 - **Apply:** https://jobs.ashbyhq.com/tapcart/03ff19a6-1f6d-4c5b-8e20-4fb7b6a2f57e/application **Skills:** Frontend development, Backend development, Database management, AI agent orchestration, Software architecture > 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 ## About Tapcart Inc. ## Company Overview - **One-liner**: Tapcart is a mobile commerce platform that enables Shopify brands to build, manage, and optimize fully personalized mobile shopping apps. - **Entity Type**: Private (Series B – latest round $65M led by Left Lane Capital) - **Headquarters**: Santa Monica, California, United States - **Founded**: 2017 - **Founders**: Eric Netsch (Founder & CEO) ## Core Business - **Primary industry**: Technology, Information and Internet (e-commerce infrastructure) - **Target customers**: B2B – Shopify merchants ranging from emerging DTC brands to established labels (2,000+ brands including LSKD, Shoe Palace, BÉIS, Princess Polly, BYLT Basics) - **Mission/purpose**: “Empower brands to create mobile moments that matter” (LinkedIn); website tagline: “Welcome to the future of mobile commerce” ## Products & Services - **Mobile App Builder (Tapcart Platform)**: No-code app design and management for Shopify stores – fully custom storefronts with loyalty centers, custom onboarding, and limitless design flexibility. - **AI-Powered Marketing Suite**: Includes AI push notifications, personalized “For You” feeds, in-app pop-overs, segmentation, A/B testing, and automated campaign workflows. - **AI Autopilot**: Agentic AI that syncs content, surfaces recommendations, and manages the app autonomously. - **Personalization Engine**: 1:1 shopper experiences based on behavioral data (searches, taps, cart adds) from over 100M processed orders. - **Developer Tools**: New developer docs and APIs for deeper customization. All offerings are SaaS (cloud-based, subscription). ## Market Standing - **Valuation / Market Cap**: Not publicly disclosed - **Key Metric**: Total funding – $84.1M raised across 5 rounds (Seed rounds 2018/2019, Series A $10M in 2020, Series B $65M in 2021) - **Notable Investors / Partners**: Left Lane Capital (lead Series B), SignalFire (lead Series A), Greycroft (lead Seed), Luma Launch, Shopify Ventures (portfolio company) - **Growth Signals**: - Processed over $9 billion in sales for DTC brands - 28 million+ hours spent shopping in Tapcart-powered apps - 2,000+ merchant customers - Headcount: 73 employees (operates in 5 countries), though down 20% YoY - Active hiring (5 open roles as of mid-2026), with +25% monthly job posting growth ## Competitive Advantages - **Deep Shopify integration** – built specifically for Shopify merchants, leveraging Shopify’s ecosystem and data. - **AI-driven personalization at scale** – uses proprietary data from over 100M orders to tailor every shopper’s experience (feeds, offers, notifications). - **“Autopilot” capability** – reduces manual merchandising and campaign management, a moat as competitors may lack such autonomous features. - **Large reference customer base** – proven with top DTC brands, creating network effects and trust. ## Strategic Focus - **AI-first automation** – making app management fully autonomous through agentic AI (AI App Studio, Autopilot). - **Expanding marketing suite** – adding loyalty centers, custom onboarding, and deeper personalization tokens. - **Remote-first scaling** – maintaining a distributed team across the US, India, Argentina, Portugal, and Canada. - **Developer experience** – new developer docs to attract technical teams and extend platform capabilities. ## Why Work Here - **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. ## Sources 1. [tapcart.com](https://www.tapcart.com/) – product features, AI capabilities, customer metrics 2. [tapcart.com/careers](https://www.tapcart.com/careers) – benefits, remote policy, open roles 3. [linkedin.com/company/tapcart](https://www.linkedin.com/company/tapcart) – company details, funding, headcount, executives, financials 4. [builtin.com/company/tapcart/faq/workplace-perception](https://builtin.com/company/tapcart/faq/workplace-perception) – workplace perception (2026) ## Other roles at Tapcart Inc. - [Technical Support Agent - UK](https://feeny.ai/job/technical-support-agent-uk-tapcart-inc-london-wcfhjx4xf82e) — London, United Kingdom - [AI Ops Engineer - GTM](https://feeny.ai/job/ai-ops-engineer-gtm-tapcart-inc-santa-monica-4c7jnmhgergv) — Santa Monica, CA - [Strategic Account Executive (NY/LA)](https://feeny.ai/job/strategic-account-executive-ny-la-tapcart-inc-santa-monica-z46x4he0kgnt) — Santa Monica, CA - [Senior Account Executive (NY/LA)](https://feeny.ai/job/senior-account-executive-ny-la-tapcart-inc-santa-monica-pd3j4eg0nd0j) — Santa Monica, CA - [Account Executive (NY/LA)](https://feeny.ai/job/account-executive-ny-la-tapcart-inc-santa-monica-8p9vj236gdcn) — Santa Monica, CA - [Demand Gen Director](https://feeny.ai/job/demand-gen-director-tapcart-inc-united-states-3psj4w9ssewr) — United States - [Sr. React Native Engineer](https://feeny.ai/job/sr-react-native-engineer-tapcart-inc-santa-monica-rcsh307wypah) — Santa Monica, CA - [Sr. Product Engineer](https://feeny.ai/job/sr-product-engineer-tapcart-inc-santa-monica-4pas5shcy9es) — Santa Monica, CA - [Sr. AI Engineer](https://feeny.ai/job/sr-ai-engineer-tapcart-inc-santa-monica-6xxtasy9tfe1) — Santa Monica, CA - [Sr. Software Engineer](https://feeny.ai/job/sr-software-engineer-tapcart-inc-santa-monica-j13t4y6sqymn) — Santa Monica, CA