← Back to jobsPosted (ATS) 2/19/2025, 1:34:44 AM Updated (ATS) 2/19/2025, 1:34:44 AM First seen by us 6/28/2026, 9:01:43 AM Last re-seen 10/18/2026, 10:00:46 PM Distinct job IDs 1 Open in parallel 1 Work locations 1 Cumulative days active 607 Stagnancy score 100 ATS job ID a03b3e54-495d-4960-aee7-0194a3cef57d
GhostHigh-confidence zombie posting. HR is probably not actually hiring.
Senior Fullstack Engineer, AI Observability & Evals Platform (SF)
LangChain · Engineering · San Francisco, CA
A posting in this role has sat open 607 days — well past the 90-day mark where an opening reads as a resume black hole rather than an active search.
Rotation timeline
Every ATS job ID we've matched to this same normalized title, oldest first. "Posted" is the date the ATS reports; "last confirmed open" is the last time we saw it live.
- Location
- San Francisco, CA
- Posted (ATS)
- Feb 19, 2025
- Last confirmed open
- Oct 18, 2026
- Open for
- 607 days +
Data provenance
- Source platform
- ashby
- Latest listing found
- https://jobs.ashbyhq.com/langchain/a03b3e54-495d-4960-aee7-0194a3cef57d
- Stream ID
- bf1b3b9f-6726-4c25-8199-e1d48fea803c