Weights & Biases

Hiring quality verdict.

Weights & Biases built the experiment-tracking layer that Anthropic, OpenAI, and DeepMind use as their system of record for training runs — and the platform's global developer footprint (1,400+ enterprise customers, 100K+ users across 20+ countries) is directly mirrored in how the team hires. Acquired by CoreWeave in May 2025 for $1.7B, W&B operates as an independent product unit: engineering comp tracks San Francisco market rates with no location haircut documented on Levels.fyi for remote senior ICs, and approximately 65% of roles are posted remote-eligible. The developer-facing culture means async-first documentation and public changelogs are internal operating norms as much as they are product features.