Redpanda, a developer-focused streaming data platform compatible with the Apache Kafka API, offers advantages such as being ZooKeeper-free and deployable as a single native binary, which facilitates Kubernetes-based deployments. It provides significantly lower latencies and faster transactions compared to Kafka. The article explores using Redpanda and Testcontainers by AtomicJar to enhance testing in the DevOps cycle, highlighting the ease of setting up integration tests for Kafka applications. Testcontainers streamlines the creation, configuration, and lifecycle management of lightweight, throwaway instances of technologies used in production, like databases and message brokers, making tests reproducible on any team member's workstation and in CI. The integration of Redpanda with Testcontainers ensures that developers can run efficient and reliable tests, with Redpanda starting significantly faster than traditional Kafka containers when using Docker. Testcontainers' abstractions allow for test-specific configurations, such as the dev-container flag, optimizing startup times and improving the developer experience without altering production configurations.