Senior Software Engineer - Python/React (LATAM, Remote)

We're hiring a Senior Software Engineer for an early-stage, US-based AI software company. You'll own large product features end to end, from a loosely defined spec to production, on a small team that ships fast while the product finds its market. This is a full-time, fully remote role on US Pacific hours. What you'll do Turn large, loosely defined product specs into technical plans, milestones and shipped code Build across the stack: Python and FastAPI on the backend, React and TypeScript on the frontend Design data models across BigQuery (SQL) and Firestore (NoSQL) Push toward higher automation rates for customers, so the product does more of the work for them Surface issues early, take initiative and own your projects from design through production Get your engineering plans reviewed and signed off by the team, and bring product questions to leadership Use AI coding tools in a disciplined workflow, while fully understanding the code you ship Join the on-call rotation and keep production healthy You may be a fit if You have senior-level experience owning large, ambiguous scopes from spec to production You write strong production Python, ideally with FastAPI or Flask, and work comfortably in React and TypeScript You model data well across relational/analytical and NoSQL databases You've built systems that grew in users, traffic or data, and you design for scale You operate autonomously and proactively, raise problems before they grow, and are reliable on deadlines You use AI