Founding Full Stack Engineer

About the Role Join an early-stage consumer health and ecommerce company as its founding full stack engineer. You will own engineering across a consumer membership platform, internal operations, and data infrastructure, helping bring new digital products to customers. What You'll Do Build and maintain a consumer membership web application using Shopify and Recharge. Improve storefront speed and application performance, including bundle size and third-party scripts. Manage tracking, consent tools, and data handling to support privacy compliance. Make decisions about architecture, databases, security, technology choices, and vendors. Lead development of a consumer-facing React Native app, with an iOS-first focus. Build and operate LLM-powered agents and internal tools with monitoring, evaluations, and human oversight where appropriate. Create scripts, automations, and workflows that reduce manual work across the business. Work directly with leadership on high-priority product and infrastructure needs. What We're Looking For At least 5 years of full stack engineering experience, including shipping consumer products to production. Strong proficiency in TypeScript and React, plus production experience with Python or Node.js. Hands-on experience with Shopify and Recharge, and a record of optimizing web application performance. Experience building consumer-facing React Native applications, preferably with an iOS-first approach. Knowledge of architectural and security decisions, privacy compliance, and consent management. Experience with AI tools or production automation is valuable, especially LLM agents with monitoring and evaluation practices. A bachelor's degree in engineering, computer science, mathematics, or a related field, or equivalent experience shipping software products. Compensation & Benefits Salary range: $130,000 to $200,000 USD annually. Visa sponsorship is not available. Location On-site in San Francisco, California, United States.