MetalBear

MetalBear is a fully remote developer-tools company whose open-source product, mirrord, runs local code with the context and dependencies of a real Kubernetes environment.

MetalBear builds developer tools aimed at a persistent bottleneck in cloud software development: the gap between writing code locally and understanding how it behaves inside a real cloud environment. Its open-source product, mirrord, allows developers and AI coding agents to run local code as if it were running inside a Kubernetes cluster, with the exact context, state, and dependencies of a production environment, without deployment or configuration. The company's technical work spans Kubernetes, cloud-native development, low-level systems programming, the C standard library layer, local development environments, CI/CD and automated testing, IDE debugging workflows, and AI coding agents.

mirrord is used by thousands of engineers worldwide. Named enterprise customers include Apple, NVIDIA, AWS, monday.com, SurveyMonkey and National Australia Bank. The company employs 25 people and reports that its founders have 20 years of combined experience as developers; they founded the business after encountering the problems mirrord addresses firsthand.

MetalBear operates fully remotely, with team members spread across 15 countries. The company describes an open-source orientation and a stated focus on removing developer friction and eliminating complex configuration, with the aim of making cloud-native development faster and more accessible. Relevant industry verticals include cloud software development, cloud-native and Kubernetes engineering, developer tools, and software testing and CI.