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Kacper Walentynowicz

Kacper Walentynowicz is a full-stack engineer working on the ElevenLabs Agents Platform. Before ElevenLabs, he worked at Two Sigma and Huawei, and has been coding since 2012. Kacper represented University of Cambridge at ICPC and won a silver medal.

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Kacper Walentynowicz

Latest articles by Kacper

Dashboard showing customer support topics with sentiment scores and resolution rates.

Introducing ElevenAgents Spotlight

Category: Product
Date: Jul 9, 2026

Cover, says "Experiments in ElevenAgents"

Introducing Experiments in ElevenAgents

Category: Product
Date: Feb 19, 2026

versioning sq

Introducing Versioning for ElevenLabs Agents

Category: Product
Date: Dec 18, 2025

Cover - Agent testing with example of passed and failed tests underneath

Introducing Tests for ElevenLabs Agents

Category: Product
Date: Sep 9, 2025

Explore articles by the ElevenLabs team

Build a voice agent in 20 minutes with ElevenLabs and Twilio
Category
Resources
Date
Jul 14, 2026
What is AI calling? Inbound, outbound, and customer support
Category
Resources
Date
Jul 13, 2026
How Projekt Kalwaria uses ElevenLabs to bring a destroyed heritage site back to life
Category
Impact
Date
Jul 10, 2026

Create with the highest quality AI Audio