Senior Fullstack Engineer

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Meet Siena. Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn’t just automate support; it powers shopping agents, builds persistent customer memory, generates actionable business insights, and creates empathetic interactions that feel human. We’re transforming how businesses understand and connect with their customers, turning every interaction into intelligence that makes the next one better.

The team is a small, distributed group that punches way above its weight. Every person here has outsized impact because we've built leverage into everything we do, making us faster and, frankly, more fun to work with. If you're excited about building something that doesn’t exist yet, keep r...

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