About the role Hiring a full-stack/founding engineers to join our team and focused on product engineering and shipping new features Things you'll be working on Architecting and implementing full-stack product features in Typescript/React/Node is the core of what you’ll be doing. Real examples include — Platform • Building sandbox infrastructure for our agents (managing secrets, proxies, and compute) • Building an eval framework for our models • Launching an analytics platform on ClickHouse/MSK that consumes millions of events per day • Building an agentic workflow orchestration architecture • Building a public API for Replo/Slack bots • Overhauling our billing system to support arbitrary usage-based billing Programs • Enabling customers to buy domains directly through Replo • Building agent-driven insight reporting for businesses • Building a full product-customizer UI for custom print-on-demand products Looking for someone who • Can be in office 4-5 days/week in San Francisco • Is proficient in Typescript/React/Node • Uses Cursor/Claude Code to accelerate their work • Has built products 0 -> 1 with real users and revenue • Is OK operating independently without product/design • Is ALWAYS SHIPPING. We don't spend weeks planning features at Replo • Has a product and customer-focused mindset • Has experience being burned by deployment and maintenance issues. If you have a a strong opinion on how products should be built, that’s good • Values writing clean, maintainable software, including documentation (e.g. the code needs to be correct and run fast, but we’re the ones that have to read it and understand it) • Is comfortable with ambiguity and defining software architecture patterns to solve customer pain points Bonus points if you • Have a CS degree or formal computer science/STEM backend • Have started a company before • Enjoy attending hackathons • Worked at an early-stage (Series A or earlier) startup previously • Have not wasted hours interview-prepping on Leetcode • Have an eye for visual design (or past experience in product design, Figma, etc).