VIER, based in Hannover, builds a customer interaction platform spanning contact routing, voicebots and agent assistance. Its stack shows a serious LLM engineering layer: Qdrant for vector search, Dify, Haystack and DSPy for orchestration, and Langfuse for observability, alongside Keycloak and SpiceDB for access control. Engineering-heavy, accelerating hiring targets a cognitive voice gateway and the pressure of scaling AI services.
VIER provides a communication platform that analyzes, assists and automates contact-driven processes in customer service, sales and back-office case handling. Its offering covers automatic call distribution, voicebots, speech analytics and agent assist tools, sold business-to-business across industries, both directly and through partners. The company positions its platform as European-built and hosted in a German cloud. Founded in 2021 and headquartered in Hannover, Lower Saxony, VIER is a public company with 201–500 employees.
VIER runs on Kubernetes and Docker across AWS, Azure and GCP, with Go, Kotlin, Java and Python services, PostgreSQL, ClickHouse, Redis and Qdrant for data, and React with Tailwind CSS on the frontend.
Job posts point to a cognitive voice gateway, a voicebot platform, backend services for platform and integration solutions, and improvements to its CI/CD pipeline.
Yes. Hiring is accelerating and weighted heavily toward engineering, mostly mid-level roles, with a smaller sales component and some lead and manager positions.
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VIER's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.
