Fresh

Senior Frontend Engineer, AI Observabilty Platform

LangChain · Engineering · Boston, MA

Within normal posting window. For now.

Posted (ATS)

9/24/2026, 7:22:18 PM

Updated (ATS)

9/24/2026, 7:22:18 PM

First seen by us

9/26/2026, 2:15:20 PM

Last re-seen

10/18/2026, 10:00:46 PM

Distinct job IDs

Open in parallel

Work locations

Cumulative days active

Stagnancy score

ATS job ID

14727440-65bd-4cce-bed1-27d0c863eab3

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.

Rotation 1LatestID 14727440-65bd-4cce-bed1-27d0c863eab3Still openView listing →
Location
Boston, MA
Posted (ATS)
Sep 24, 2026
Last confirmed open
Oct 18, 2026
Open for
24 days +

Data provenance

Source platform: ashby
Source API URL: https://api.ashbyhq.com/posting-api/job-board/langchain?includeCompensation=true
Latest listing found: https://jobs.ashbyhq.com/langchain/14727440-65bd-4cce-bed1-27d0c863eab3
Stream ID: 4deecac4-4d21-4403-ab24-3757a4e7f41c

Apply to the latest listing (your funeral) →