← Back to jobsPosted (ATS) 10/27/2025, 8:15:01 AM Updated (ATS) 8/17/2026, 5:49:44 PM First seen by us 7/2/2026, 7:01:38 AM Last re-seen 8/22/2026, 2:15:19 PM Distinct job IDs 1 Open in parallel 1 Work locations 1 Cumulative days active 300 Stagnancy score 90.07 ATS job ID 7350081
GhostHigh-confidence zombie posting. HR is probably not actually hiring.
[2026] Senior Machine Learning Engineer, Recommendation Systems - PhD Early Career
Roblox · Early Career Full-Time · San Mateo, CA, United States
A posting in this role has sat open 300 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 Mateo, CA, United States
- Posted (ATS)
- Oct 27, 2025
- Last confirmed open
- Aug 22, 2026
- Open for
- 299 days +
Data provenance
- Source platform
- greenhouse
- Latest listing found
- https://careers.roblox.com/jobs/7350081?gh_jid=7350081
- Stream ID
- ba65efc8-f743-42de-bac5-7385b10b618d