Eligibility & sources
US · FullTime · Founding Engineer - LLM Infra & Platform [50aaa303-32cd-422f-9ef6-f3ffa278e411; https://jobs.ashbyhq.com/pax-historia/50aaa303-32cd-422f-9ef6-f3ffa278e411], Founding Engineer - Harness Optimization [5742565d-afc5-4b34-bd4e-ad79da5967d5; https://jobs.ashbyhq.com/pax-historia/5742565d-afc5-4b34-bd4e-ad79da5967d5]
Sources & dates
- Job posting Founding Engineer - LLM Infra & Platform
Read 2026-09-28T11:33:12.000Z
Source context
Full-time San Francisco posting cross-matched by exact title and body to Ashby requisition 50aaa303-32cd-422f-9ef6-f3ffa278e411. Header says ‘US citizen/visa only’; body says ‘We are open to sponsoring visas’ and says compensation includes meaningful equity. It requires in-person San Francisco work 5+ days/week. No quantitative equity terms are stated.
- Job posting Founding Engineer - Harness Optimization
Read 2026-09-28T11:33:12.000Z
Source context
Full-time San Francisco posting cross-matched by exact title and body to Ashby requisition 5742565d-afc5-4b34-bd4e-ad79da5967d5. Header says ‘US citizen/visa only’; body says ‘We are open to sponsoring visas’ and says compensation includes meaningful equity. It requires in-person San Francisco work 5+ days/week. No quantitative equity terms are stated.
- Jobs board Pax Historia public Ashby job-board API feed
Read 2026-09-28T11:33:12.000Z
Source context
Root-captured public response at 2026-09-28T11:32:53Z: HTTP/2 200, application/json; charset=utf-8, Date 2026-09-28 11:32:53 GMT, public max-age=60 and stale-while-revalidate=60, CF cache HIT; no Age or Last-Modified observed. Body 12,126 bytes, SHA-256 1dc53810b18212b07fac8f7906bfb85bbffd0130a6b21ae5e29e1fffd31c272f. Researcher reviewed the capture at 11:33:12Z. It contains exactly two listed FullTime San Francisco roles and their full descriptions, current job URLs, and application URLs.