List open jobs at companies on Greenhouse, Lever, Ashby, Workable, SmartRecruiters, Workday, BambooHR, Personio, Recruitee, Breezy HR or Teamtailor from a careers URL, "ats:slug" (for example "greenhouse:airbnb", "workday:nvidia.wd5/NVIDIAExternalCareerSite") or a company name or domain (found on the first five ATS). Use when the user asks who is hiring, what roles a company has open, or to find remote or engineering roles at a named company. Optional filters: keyword, titleKeywords, excludeTitleKeywords, location, remote, department, employmentTypes, postedSince, postedWithinDays, withSalary. Returns normalized jobs (title, department, locations with ISO country codes, remote, workplace type, compensation, description, apply URL, dates); a board that cannot be read comes back as a type "error" record.