← Back to jobsPosted (ATS) 8/3/2026, 12:00:00 AM Updated (ATS) 8/3/2026, 12:00:00 AM First seen by us 8/14/2026, 7:01:30 AM Last re-seen 8/23/2026, 1:45:41 PM Distinct job IDs 1 Open in parallel 2 Work locations 1 Cumulative days active 21 Stagnancy score 0 ATS job ID R4192
Multiple OpeningsSeveral job IDs open in parallel under one title — likely genuine multiple openings, not a recycled req.
Principal Researcher, Downstream Process Development - Biologics
Eisai · Pennsylvania, Exton
2 job IDs open in parallel rather than re-posted over time — most likely several genuine openings, not a recycle.
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
- Pennsylvania, Exton
- Posted (ATS)
- Aug 3, 2026
- Last confirmed open
- Aug 23, 2026
- Open for
- 21 days +
Data provenance
- Source platform
- workday
- Latest listing found
- https://eisai.wd5.myworkdayjobs.com/eisai/job/Pennsylvania-Exton/Principal-Researcher--Downstream-Process-Development---Biologics_R4192-1
- Stream ID
- 657aa114-3c5d-47a4-a558-e4afd9ac21f0