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7 open tech jobs. We read every job from the SirenOpt job board (Greenhouse) and check it every day. We last read the job board 4 h ago.
At least $29M in SEC filings. This number is a minimum. A company does not report all the money that it raises on Form D.
| First sale | Amount sold | Source |
|---|---|---|
| Sep 10, 2026 | $19,428,895 | SEC filingFiled Sep 18, 2026 |
| Jun 28, 2024 | $9,642,402 | SEC filingFiled Jul 12, 2024 |
We match SEC filings to companies by name and place. Use each link to check the filing.
We last checked these filings on Nov 8, 2026.
Yes. On Nov 9, 2026, SirenOpt has 7 open tech jobs on its own job board, most of them in software engineering (3) and data science (2). 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. 100% of its open jobs have posted pay. The median posted base range is $150K to $190K a year (from 7 jobs).
| Day | Open jobs | New jobs | Closed jobs |
|---|---|---|---|
| Nov 9, 2026 | 7 | 0 | 0 |
| Nov 8, 2026 | 6 | 0 | 0 |
| Nov 7, 2026 | 6 | 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.
We do not have enough data yet. We show this number after we see at least 10 jobs open and then close on the SirenOpt job board. Jobs that were open before we started to check do not count, because we do not know when they started.
One job can have more than one job type.
Locations as the company writes them. 0% of open jobs are remote.
On Nov 9, 2026, the median posted base salary range at SirenOpt is $150K to $190K a year. This median comes from 7 open tech jobs with a yearly pay range in US dollars. The highest posted top of range is $240K. 100% of the open jobs at SirenOpt have posted pay. The numbers show base salary only, without stock or bonus.
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.
Set the job types, places and pay that you want in your profile. You get one email each day when new jobs match. In your profile, you can change that to one email each hour. The emails show jobs from all companies, not only SirenOpt.
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.
Set the job types, places and pay that you want in your profile. You get one email each day when new jobs match. In your profile, you can change that to one email each hour. The emails show jobs from all companies, not only SirenOpt.
median posted range highest top of a posted range
These are the base pay ranges in the company's open job posts. They do not include stock or bonus. We show a row only when 2 or more jobs have a yearly pay range in US dollars. One job can have more than one job type.
San Leandro, California +1
$180K–$240K / yr
Posted 24 days ago
San Leandro, California +1
$120K–$160K / yr
Posted 26 days ago
San Leandro, California +1
$160K–$240K / yr
Posted Oct 1, 2026
San Leandro, California +1
$140K–$190K / yr
Posted Oct 1, 2026
San Leandro, California +1
$120K–$170K / yr
Posted Oct 1, 2026
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