What Butter does
Butter is building bVisor, an incredibly lightweight sandbox runtime for AI agents. It embeds directly into your local process, providing a safe bash environment without the overhead of VMs or remote infra.
Check the company’s own careers page — linked at the top — before a job board. A role appears there first, sometimes weeks before it is syndicated anywhere else.
Questions and experiences
Nobody has asked anything about Butter yet. If you have interviewed here, what you know is worth more to the next person than anything on the rest of this page.
Company facts compiled from public sources and last refreshed 9 September 2026. Details change; treat the company’s own site as the authority.