Siena AI in Río Cuarto, Argentina is seeking a Senior Fullstack Engineer to drive end-to-end project ownership on our AI-powered customer support automation platform. You will design, build, and maintain scalable full-stack features while closely collaborating with product and engineering teams.

The ideal candidate has over 5 years of engineering experience in Node.js, React, and AWS with a focus on delivering impactful solutions. Competitive salary and opportunities for equity are provided.