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Sr. Full Stack Developer at P3 Digital LLC. Location Information: Anywhere in the World. . . Headquarters:. New York . URL:. . https://pthreemedia.com/. . . . . About This Role. . We are looking for a Senior Full Stack Developer with deep expertise in the Shopify ecosystem, a strong grasp of headless architecture, and experience leading enterprise-scale development initiatives. You’ll be responsible for building scalable, high-performance eCommerce solutions using Shopify (including Hydrogen/Storefront API), Gadget.dev, and headless CMS platforms like Contentful, Sanity, or Strapi.. . . . You’ll work in close collaboration with cross-functional teams—design, product, DevOps, and QA—to architect, develop, and deploy robust eCommerce applications that push performance and scalability to new heights.. . . . Core Responsibilities. . Architecture & Development. . . . Architect full-stack applications with Shopify as the backend and modern front-end frameworks (Next.js, Remix, React, etc.) in a headless configuration.. . . . Lead the development of scalable, modular, and high-performance Shopify applications, with a focus on maintainability.. . . . Develop and optimize Gadget.dev-based applications, integrating them with Shopify APIs and third-party services.. . . . Design system architecture that can handle enterprise traffic, catalog sizes, and multi-region deployment requirements.. . . . ⚙️ Integration & Infrastructure. . . . Implement integrations with payment gateways, ERPs, CRMs, and third-party logistics providers.. . . . Build performant API layers using GraphQL, REST, or custom middleware, handling Shopify storefront and admin APIs.. . . . Utilize CI/CD pipelines, Git workflows, and automated deployment tools (e.g., GitHub Actions, Vercel, or Netlify) for streamlined releases.. . . . Collaboration & Strategy. . . . Work closely with product managers, designers, and technical leads to define technical requirements and timelines.. . . . Serve as a senior technical advisor to junior developers and contribute to code reviews, architecture documentation, and best practices.. . . . Assist in conducting performance audits, A/B tests, and code optimizations for ongoing projects.. . . . ✅ Required Skills & Experience. . . . Shopify Ecosystem. . . . 5+ years of experience developing with Shopify, including Shopify Plus, Storefront API, Admin API, and Checkout customization.. . . . Strong understanding of Hydrogen, Oxygen, Liquid, Shopify Functions, and Shopify theme development.. . . . Full Stack Proficiency. . . . Front-end: React, Next.js/Remix, Tailwind CSS, TypeScript. . . . Backend: Node.js, Express.js, serverless functions. . . . Database: PostgreSQL, MongoDB, or Shopify-native metafields & customer objects. . . . Experience designing GraphQL schemas and working with Apollo or Relay.. . . . Gadget.dev & Headless CMS. . . . Strong experience working with Gadget.dev, especially in building Shopify-integrated apps and workflow automations.. . . . Hands-on with headless CMS platforms like Contentful, Sanity or AEM.. . . . Experience modeling content architecture for flexibility and localization.. . . . ️ Systems Thinking & Enterprise Expertise. . . . Ability to lead large-scale Shopify implementations across multiple brands, currencies, and localized storefronts.. . . . Comfortable designing multi-tenant architectures, CDN caching strategies, and edge function deployments.. . . . Soft Skills & Culture Fit. . . . Proven track record of leadership in development teams.. . . . Clear, proactive communicator who values documentation and async collaboration.. . . . Comfortable mentoring other engineers and leading by example.. . . . Passionate about eCommerce innovation and delivering elegant, user-centered solutions.. . . . Success Metrics. . . . On-time delivery of milestone features with high test coverage.. . . . Achieving performance targets for Core Web Vitals and Shopify storefront speed.. . . . Stability and scalability of deployed architecture under enterprise-grade traffic.. . . . Developer productivity improvements through tooling, automation, and documentation.. . . . Creative mindset with the ability to collaborate effectively with creative teams.. . . . . . Why Join Us?. . . . Dynamic Growth Opportunities: Be part of a fast-growing company where your contributions directly impact our success and your professional growth.. . . . Innovative Culture: Work in an environment that encourages creativity, experimentation, and innovation in digital marketing.. . . . Competitive Compensation: Enjoy a competitive salary, performance bonuses, and a comprehensive benefits package.. . . . Remote Flexibility: Benefit from the flexibility to work from anywhere, fostering a healthy work-life balance.. . . . . To apply:. . https://weworkremotely.com/remote-jobs/p3-digital-llc-sr-full-stack-developer.