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Horizon3 jobs
74 open tech jobs. We read every job from the Horizon3 job board (Ashby) and check it every day. We last read the job board 6 h ago.
- Headquarters
- San Francisco, USAFireround, checked Nov 9, 2026
- Formed in
- 2019SEC Form D filing, checked Nov 8, 2026
- Backed by
- NightDragon, SignalFire, 9Yards Capital, Acrew Capital, Blue Cloud Ventures, Craft Ventures and 8 moreChecked Nov 9, 2026
Key numbers
Open jobs74
New jobs since Nov 7, 20260
Median posted pay$206K–$260KBase pay a year
Newest round on recordAug 3, 2026Series E
What they do
Horizon3 is a cybersecurity company. Its NodeZero platform runs autonomous pentests to find and fix exploitable attack vectors before criminals exploit them.
An AI model wrote this summary from the text of the company. Checked Nov 9, 2026.
Funding
Funding rounds on record
| Date | Round | Amount | Source |
|---|---|---|---|
| Aug 3, 2026 | Series ELed by NightDragon | $250 million | Announcement |
| Jun 10, 2025 | Series D | $100 million | Announcement |
| Nov 2, 2021 | Series BLed by SignalFire | $30M | Announcement |
Rounds can be missing, and a record can have errors. Use each link to check a round. The rounds come from Fireround. We last checked them on Nov 9, 2026.
At least $145M in SEC filings. This number is a minimum. A company does not report all the money that it raises on Form D.
Raises in SEC filings
| First sale | Amount sold | Source |
|---|---|---|
| May 8, 2025 | $72,999,996 | SEC filingFiled May 22, 2025 |
| Jul 18, 2023 | $37,999,987 | SEC filingFiled Aug 1, 2023 |
| Oct 29, 2021 | $34,999,989 | SEC filing |
Hiring trend
Is Horizon3 hiring?
Yes. On Nov 9, 2026, Horizon3 has 74 open tech jobs on its own job board, most of them in software engineering (46) and infrastructure, platform and SRE (9). We started to check its job board on Nov 6, 2026. Since then, it has not added or closed a tech job. We add to this history every day. 96% of its open jobs have posted pay. The median posted base range is $206K to $260K a year.
- With posted pay
- 96%
- Remote
- 89%
- New jobs since Nov 7, 2026
- 0
- Closed jobs since Nov 7, 2026
- 0
Jobs at Horizon3 each day
| Day | Open jobs | New jobs | Closed jobs |
|---|---|---|---|
| Nov 8, 2026 | 67 | 0 | 0 |
| Nov 7, 2026 | 67 | 0 | 0 |
We started this daily count on Nov 7, 2026. We show a chart after 14 days of data. A day is a UTC day, and the last day can change until it ends.
How long do Horizon3 jobs stay open?
We do not have enough data yet. We show this number after we see at least 10 jobs open and then close on the Horizon3 job board. Jobs that were open before we started to check do not count, because we do not know when they started.
Which job types does Horizon3 hire for?
One job can have more than one job type.
Where are the jobs?
Posted pay at Horizon3
How much does Horizon3 pay?
On Nov 9, 2026, the median posted base salary range at Horizon3 is $206K to $260K a year. This median comes from 71 open tech jobs with a yearly pay range in US dollars. The highest posted top of range is $370K. 96% of the open jobs at Horizon3 have posted pay. The numbers show base salary only, without stock or bonus.
Software engineering
- All levels44 jobs with pay$222K–$260Khighest $370K
- Level not stated6 jobs with pay$225K–$265Khighest $280K
- Senior18 jobs with pay
Reported pay at Horizon3
People add their own pay on JobsWithPay. We show a median for a job type and level only when 5 or more people report for it. For large companies, we also show single reports with no name.
Open tech jobs at Horizon3
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Sources
- Horizon3 job board (Ashby)Checked Nov 9, 2026
- FireroundChecked Nov 9, 2026
- SEC Form D filingsChecked Nov 8, 2026
- AI summaryChecked Nov 9, 2026
We found this job board in a public list. We did not yet compare it with the careers page of the company. See the monthly tech hiring report for the same numbers for all companies.