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Jobs/Series C+

Series C+ Jobs

Explore open roles at later-stage companies.

28,876 open roles · Updated Nov 5, 2026

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OpenAIRed Team - Cyber

San Francisco, CA · Seattle, WA · Washington, D.C.

$198k–$320k / year

Job type
Infrastructure, IT, & Security
Seniority
Mid-Level
Sector
AI Research
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Frequently asked questions

How many Series C+ startup jobs are on BuildList?
There are currently 28,876 open roles at Series C+ companies on BuildList, refreshed hourly from company career pages.
What is it like to work at a Series C+ startup?
Explore open roles at later-stage companies. Filter by sector or role type to focus your search.
Which industries are hiring at Series C+ companies?
Roles at Series C+ companies span AI, defense, aerospace, robotics, energy, and more.
How do I apply to Series C+ startup jobs?
Every listing links straight to the company's own application page — BuildList doesn't sit between you and the employer, so there's no account or middleman.