Market landscapes / AI Safety, Security & Governance / AI Red Teaming & Security Testing
HackerOne
Security testing by a large community of ethical hackers, now combined with AI. HackerOne runs bug bounties, penetration tests and AI red teaming for companies.
AI Red Teaming & Security Testing5,001-10,000 peoplehackerone.com ↗
Updated 12 October 2026
Hiring now
From HackerOne's own jobs board, checked every week.
Hiring sales leadership. A head of sales is on the list, which usually means the sales team is about to grow underneath it.
10 of its 15 open roles are in engineering and research.
Where the roles are
Against its sector
HackerOne has the second most open roles in AI Red Teaming & Security Testing, after White Circle. 9 of the 21 active companies in this sub-sector are advertising roles.
Who HackerOne competes with
The other active companies we file under AI Red Teaming & Security Testing, sorted by how much they are hiring.
Where this fits
Attacking an AI system deliberately, to find what it will do wrong before a customer does. Of everything in this theme it is closest to traditional penetration testing, so it sells into a security budget that already exists rather than one that has to be created first.
We track hiring and team changes across all 186 companies in AI Safety, Security & Governance.
Our talent report for this sector shows how HackerOne's team compares with its competitors.
What is in it:
- Every company's team size, side by side, grouped by sub-sector
- Who grew their team over the last year, and by how much
- Who is losing people: attrition for each company, against the sector average
- Who is hiring right now, and how many open roles each has
I am Ben Jackson. I map this market, and I hire the commercial teams inside it: sales, marketing, product and delivery.
If you are building a team at a company like HackerOne, want to work at one, or think HackerOne is filed in the wrong place, put 20 minutes in my diary.
Book 20 minutes with Ben →