Neptune.ai

Hiring · 5 open jobs

General information

Neptune.ai is a Palo Alto company that built an experiment tracking platform used by teams training foundation models in AI and machine learning. The platform monitors thousands of per-layer metrics, including losses, gradients and activations, across large-scale training runs for AI research teams.

OpenAI acquired Neptune.ai on December 3, 2025. The deal put a tool built to track foundation-model training inside one of the labs building those models.

Currently, there are no job openings at Neptune.ai. Over the last 30 days, 3 jobs were added and 0 were removed.¹

Website

neptune.ai

Headquarters

Palo Alto, United States

Industry

Technology

Open jobs

5 open · updated today

Family Law (Prenup) Attorney - Florida Family Law Attorneys · United States 32 days ago Family Law (Prenup) Attorney - Texas Family Law Attorneys · United States 32 days ago Family Law (Prenup) Attorney - Illinois Family Law Attorneys · United States 32 days ago Founding Engineer Engineering · New York, NY 62 days ago Founding Brand and Content Lead Growth · New York, NY 62 days ago

Page 1 of 1, most recently added first · Download (CSV)²

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Common questions

Is Neptune.ai hiring now?

Yes. There are 5 open jobs.

Hiring trend: available after 60 days of clean history · tracking since July 2026. Velocity stats appear after 60 days of clean history. We're on day 14.

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Notes & sources

3 daily listing observations, Aug 14 to Sep 15 windowRechecked daily, last September 15, 2026

1. Company description. Written by InterviewOS from Neptune.ai's public materials and press coverage; facts are checked against the sources below.
2. Live counts. Deduplicated live listings observed daily on Neptune.ai's own hiring system; last check September 15, 2026. Stale and syndicated posts on aggregator sites are not counted.

Sources
neptune.ai, checked daily
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