Facts
as of Nov 15, 2026
BillionToOne is a US precision diagnostics company headquartered in Menlo Park, California, that develops single-molecule DNA sequencing tests for prenatal screening and oncology. Its proprietary Quantitative Counting Templates technology underpins prenatal tests for recessive conditions and chromosomal disorders and liquid biopsy tests for cancer, run in its own clinical laboratories in Menlo Park and Union City, with a further lab planned in Austin, Texas; the company was founded in 2016 and has grown to more than 700 employees. It hires clinical laboratory scientists, automation and process engineers, research associates, account executives, regional sales managers and finance staff.
It is hiring: 77 open roles, 27 of them posted in the last 30 days. Its stated pay is 100% above the market estimate for the same roles.
- Headquarters
- Menlo Park, United States
- Founded
- 2016
- Employees
- 201-500estimated range
- Listing
- NASDAQ: BLLN
- Open roles
- 77 in 26 citiesAlion job postings
- Website
- billiontoone.com
As of Nov 15, 2026, Alion lists 77 open roles at BillionToOne. BillionToOne is headquartered in Menlo Park, United States. It was founded in 2016. The median pay stated in its open roles is $248k, across 66 postings that state pay.
Sources: company registers, GLEIF, Wikidata, the company's site, Alion job postingsReport a mistake
What the registers and the postings say about this employer.
Postings are real
Alion truth index: A
94/100
Ghost roles
re-checked against its careers site
0%
Sanctions lists
OFAC SDN, EU consolidated
No match
Phishing reports
OpenPhish, Phishing.Database
None
Layoff notices
US WARN notices on file
None
Sources: company registers, the Alion truth index, OFAC and EU sanctions lists, US WARN notices
Hiring steadily, with new roles every week.
Sales is the largest family, 53 of open roles.
27Posted in 30 days35% of open roles are fresh
26%Remote roles20 of 77
5Roles in AI6% of open roles
26Hiring offices
Can they hire you from United States?by your location
Likely
76 open roles are in your country: you apply locally, no move needed.
United States76On site
Remote, from elsewhere20Possible
No posting offers visa sponsorship. Remote roles: 20.
Time to fillmedian days to close a role
BillionToOne114 days
Market, same roles32 days
Alion signals0-100
Demand96
Pay70
Your chance57
How badly they need people, whether they pay, how realistic getting in is.
Open roles over time−100%
Sep 28This week
Open roles a week: 70 then, 0 now
Are the postings real?
A
94 / 100BillionToOne scores A on the Alion truth index (A is best, E worst), measured over 44 open roles re-checked against its own hiring board: 0% look like ghost listings, 2% have gone stale and 0% are the same role posted again. Its roles close in a median of 114 days.
Ghost roles0%
Gone stale2%
Reposted0%
Where the openings areshare of open roles · trend
Sales53▲
Marketing7▲
Industrial Engineering7▼
Data Science6▼
Field & Service6▼
Customer Success4
What postings ask forlanguages named in open roles
Degree asked
Bachelor's Degree 96%Master's Degree 4%
Experience asked: 3.7 years on average, in 48 postings. 25 postings state a degree.
Benefits named in postingsshare of open roles
401k plan7294%
Equity7192%
Parental leave6888%
Insurance coverage23%
Hybrid work11%
Continuous learning11%
Growth opportunities11%
Professional development11%
Contract type
Full-Time 3Contract 3Internship 1
Visa sponsorship: none statedRelocation: none stated
Source: the company's careers site, read by Alion several times a day; market medians from all open roles of the same family
Pays 100% above the market estimate for the same roles.
$248kMedianmarket estimate $124k
$201k – $312kTypical rangeUSD a year
$314kHighest paying roleOncology Account Executive
Pay by levelmiddle half of stated pay, median marked · dashed: market median $124k
Junior8$87k$58k – $134k
Middle22$248k$246k – $248k
Senior7$201k$109k – $207k
Head+3$272k$245k – $272k
$0$75k$150k$225k$300k
Source: the pay stated in the company's postings, normalised to USD a year
Named in the work visa registers of United States.
11 ▲ 83%H-1B filings in 12 months
1Green card filings
$112kMedian offered salary
In the register as BillionToOne, Inc., Menlo Park, CA (+1 more)
Other sponsors in the same field
US Department of Labor · latest filing May 22, 2026
Footprint
Hiring in 26 cities in 1 country.
26Cities
1Countries
Menlo ParkBusiest site
Source: office addresses in postings and company registers
Ranked #5 by open roles among its 11 closest peers.
Source: Alion's similar-companies engine (industry segments, technologies, headquarters country, size)
Financials
1 public grant on record, $224k in total.
$224kPublic grants1 public grant
Money by yearUSD, rounds and grants
Largest rounds and grants
Sources: funding announcements, grant and company registers
Technologies named in job postings at BillionToOne over the last 12 months, by layer, with the share of postings for each.
42Technologies in use
33Postings analysed
85/100Stack modernityAI adopter
Sign in to see how your skills match this stackSign In
Source: the technologies named in the company's postings and on its site
Milestones
Each milestone is dated by its source: registers, filings, the press
Newsroom
1Hacker News storiesbest: 684 points
Sep 242026
News · YahooFinance
BillionToOne has delivered a strong year to date gain, which puts fresh focus on whether the current share price lines up with the cash the business is expected to generate over…
Sep 172026
News · The Motley Fool
The medical diagnostics company disclosed a substantial insider stock sale.
Aug 282026
News · The Motley Fool
The molecular diagnostics company reported a notable insider stock sale.
Jul 242026
Press release · The Globe and Mail
Detailed price information for Billiontoone Inc Cl A (BLLN-Q) from The Globe and Mail including charting and trades.
Nov 6, 20252025
News · ycombinator
Today, BillionToOne goes public, becoming YC's fourth publicly traded biotech company. More importantly, they have built one of the most important genetic tests in the U.S. Today…
Sources: the outlets named on each headline, each story once
