What they do: AI-driven autonomous customer experience (CX) agents for e-commerce and regulated industries
Founders: Andrei Negrau and Lisa Popovici
Seed funding: $4.7M (Nov 2023)
Compliance: GDPR, CPRA, SOC 2, HIPAA (announced May 6, 2025)
Team size: ~41 employees
Customer experience automation for e-commerce and regulated industries (healthcare, etc.)
Customer experience / AI
$4.7M
Syndicate included Pari Passu Ventures, Spacestation Investments, Village Global, The Council, OpenSky Ventures and others
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Siena AI is building enterprise empathic AI Agents powered by reasoning-adept LLMs. Siena is the first AI Agent of its kind, designed to integrate with existing systems and interact with customers across multiple channels from a single, unified platform.
Job Title: AI Engineer
Location: London, England, United Kingdom (Remote)
Employment Type: Full-time
Department: AI Team
Skills You'll Need to Bring:
Nice to Haves:
To stay at the cutting edge of AI-driven work, we provide:
Siena provides equal employment opportunities to all employees and applicants, committed to a diverse and inclusive workforce.