# Character.AI, Technical Staff - ML, Redwood City, CA

- [Principal Research Engineer, Post-Training](/j/character/cab23a8b-97ba-4b20-a8e3-f7d9a61e13f4.md) | Redwood City, CA | FullTime | posted 2026-06-22
- [Research Engineer, AI Safety & Alignment](/j/character/a7ddb640-466f-4a1f-9a94-7465006aad05.md) | Redwood City, CA | FullTime | remote | posted 2025-10-03
- [Machine Learning Infrastructure Engineer](/j/character/13006848-6a69-4467-9274-5d54e80b965d.md) | Redwood City, CA | FullTime | remote | posted 2025-04-24
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Jobs seen during August 2026. Updated daily. Independent index; not affiliated with the companies listed. Applications happen on each company's own site. Contact: mail@companies-hiring.click