Telli builds an AI phone system using Twilio, Node.js, and TypeScript to automate high-volume customer calls. The stack reveals a product-led engineering approach: they layer n8n and Zapier for workflow automation on top of voice infrastructure, paired with React frontends and PostgreSQL persistence. Active hiring is concentrated in ops and marketing (7 of 12 roles), suggesting a shift from engineering validation toward scaling go-to-market—a common pattern for voice/AI products moving from MVP to customer traction.
Telli is a Berlin-based AI phone automation platform that replaces traditional call centers and customer support queues with conversational AI. The company targets businesses handling high volumes of repetitive inbound or outbound calls—support, sales, onboarding, and account management workflows. Their operating model combines AI-native core processes with custom client solutions, reflected in active projects around internal tooling, GTM engine development, and customer expansion. At 11–50 employees, they are hiring steadily across operations and marketing roles while maintaining a mid-level seniority distribution.
Telli's stack includes Twilio for voice infrastructure, Node.js and TypeScript for backend logic, n8n and Zapier for workflow automation, React for frontend UX, and PostgreSQL for data persistence. They also use Temporal for orchestration and Modal for compute.
Telli is headquartered in Berlin, Germany, and all current hiring is in Germany. The company has 11–50 employees and is hiring at steady velocity across multiple departments.
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