Senior Full Stack Developer

Senior Full Stack Developer (React / Next.js · Node.js · Headless Commerce) Company Overview ​It is a fast-growing DTC brand-building company behind a expanding portfolio of e-commerce brands — including health wearables, pet products, and maternity. We move fast, build lean, and use the best tools available, including advanced AI, to punch far above our weight. The team is small, high-performance, and intensely focused on results — a culture that values true autonomy and speed. ​Mission ​We're hiring a Senior Full Stack Developer to own both frontend architecture and backend systems across our brand storefronts and internal tooling. You'll be the lead developer on a small but fast-moving team, driving headless Shopify builds, designing the backend/API layer, and shipping features across multiple live DTC brands. This is a hands-on engineering role where you write clean code, design highly scalable systems, and own outcomes end-to-end. Real ownership, real impact. ​Key Responsibilities ​Your daily tasks will vary, giving you room to learn, grow, and strengthen your skills while supporting the team with excellence. ​ Frontend Systems: Architect and build high-performance storefronts using React and Next.js; define rendering strategies (SSR, SSG, ISR, Edge) based on product and SEO requirements; and optimize Core Web Vitals across critical user flows (PDP, PLP, checkout). ​ Backend & API Layer: Design and implement backend services using Next.js API routes, serverless functions, and Node.js-based services; build data orchestration layers to aggregate data from Shopify, CMS, and third-party systems; and manage GraphQL/REST integrations including Shopify Admin API, webhooks, and Shopify Functions. ​ Platform & System Design: Design scalable, multi-brand architecture across storefronts and internal tools; define abstraction layers between the commerce platform and frontend applications; and integrate production monitoring/error tracking tools like Sentry. ​ Engineering Ownership: Set and enforce engineering standards across the full stack, conduct rigorous code reviews focused on system design, and debug complex production issues across frontend, backend, and integrations. ​ AI Tool Integration: Use AI-assisted development tools (such as Claude Code, Cursor, and GitHub Copilot) as a core, daily part of your engineering workflow.Measure system reliability, revenue impact, and operational performance Iterate rapidly based on live deployment feedback Prepare scaling plan for additional locations and multi-tenant expansion Qualifications ​ Years of Experience: 5+ years of professional software engineering experience with strong, demonstrable expertise across both frontend and backend systems. ​ CRM/Platform Experience: High proficiency with the Shopify environment (Storefront API, Admin API, webhooks, and Shopify Functions). ​ Softwares: React.js, Next.js, JavaScript, TypeScript, Tailwind CSS, Node.js, GraphQL, REST, Supabase, PostgreSQL, Redis, Upstash, Vercel, Git/GitHub, and Sentry. ​ Industry Knowledge Required: Deep understanding of headless commerce infrastructure, rendering tradeoffs, SEO fundamentals, Core Web Vitals optimization, database schema design, and serverless/edge workflows. Experience in DTC or high-performance e-commerce environments is required. ​ Specific Gender: No preference ​Skills & Competencies ​Expert-level frontend capabilities in managing design systems, reusable components, and state architecture across large-scale applications. ​Strong backend API architecture design skills, including caching strategies across CDN, edge functions, and server-side layers. ​Excellent full-stack debugging and problem-solving skills across client, server, and network environments. ​Ability to collaborate directly with product, design, and brand teams at the level of technical feasibility and strategic tradeoffs rather than just task execution. ​High agency and technical independence to manage security best practices, web authentication, and data flow architecture. ​Technical Requirements ​Own PC or laptop. ​Reliable internet connection (wired connection recommended). ​Noise-cancelling headset and a quiet, professional workspace. ​Active expertise utilizing modern AI-assisted engineering tools (Cursor, Claude Code, GitHub Copilot, etc.) inside daily coding workflows. ​Comfortable working with database ORMs (Prisma, Drizzle) and background jobs (queues, cron, event-driven workflows). ​Solid testing experience across the stack (unit, integration, API, and E2E using Playwright, Vitest, Jest, or Cypress). ​Nice to Have ​3–5 years of React Native or Flutter experience (mobile app projects are on the upcoming roadmap). ​Experience with Shopify Hydrogen / Oxygen. ​Familiarity with backend frameworks such as Express, NestJS, or Fastify. ​Hands-on CI/CD pipeline setup and management experience. ​Comfort with MCP (Model Context Protocol) server integrations and agentic development workflows. Position Description Working Hours: Full-time – 8 hours per day ​ Working Days: Monday to Friday ​ Days Off: Saturday & Sunday ​ Work Location: Fully-remote, you can work from anywhere ​ PTO (Paid Time Off): Standard PTO policy (to be discussed during the hiring process) Salary Range: $3,000 - $3,500