9 Mothers
Robotics · Artificial Intelligence
7open roles
$195kmedian advertised pay
1backers · Y Combinator
Scaling fasthiring pace, 77 of 100
Overview
Headquartered in Austin, Texas, 9 Mothers is an aerospace and defense technology company specializing in AI-powered autonomous counter-drone systems. The enterprise develops advanced counter-small Unmanned Aerial Systems (C-sUAS) and close-range point defense platforms designed to detect, track, and neutralize fast-moving aerial threats. By combining high-speed motion engineering, passive acoustic sensing, and in-house computer vision models, the organization delivers agile, cost-effective defensive solutions built for modern tactical environments.
Funding and backers
Hiring now
8
+6 posted in 30 days
Backers
1
Y Combinator
Momentum
45/100
hiring for its size, rising traction
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 2026
Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
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Jobs
Apply
$140k – $175k per year · In office · Full-Time · 8+ years exp · Austin
SolidWorks
Defense
MIL-STD-810
MIL-STD-461
Apply
$150k – $200k per year · In office · Full-Time · 10+ years exp · Austin
Python
C++
MATLAB
ROS
EtherCAT
Design
SolidWorks
SpaceTech
ANSYS
Defense
MIL-STD-810
Apply
$100k – $155k per year · In office · Nationals only · Full-Time · 5+ years exp · Bachelor's Degree · Austin
Python
C++
MATLAB
Cursor
SciPy
Multimodal AI
NumPy
DevOps
Linux
Robotics
ROS
Sensor Fusion
Apply
$160k – $190k per year · In office · Full-Time · 10+ years exp · Bachelor's Degree · Austin
Error Budget
SLI/SLO/SLA
SpaceTech
GD&T
Defense
MIL-STD-810
Apply
$100k – $270k per year · In office · Full-Time · Austin
Python
Rust
C++
Computer Vision
DevOps
RTOS
CI/CD
Robotics
ROS2
PID Control
Apply
$110k – $300k per year · In office · Full-Time · 6+ years exp · Austin
Python
Rust
C++
Quantization
JAX
Multimodal AI
Computer Vision
TensorRT
PyTorch
Synthetic Data
Machine Learning
Robotics
Sensor Fusion
Sim-to-Real
Apply
Salary insights
Compensation ranges based on this company's open jobs
Median
$195k
Typical range
$46k – $300k
Open positions
8
6
Jobs
Middle
16.7%
Senior
83.3%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Middle | 1 | $200k | $200k |
| Senior | 5 | $190k | $155k – $300k |
Highest paying role
Perception Engineer
$300k
Normalized to USD per year
All salaries at 9 Mothers
By role, level and city, against the market · 8 jobs with pay
Growth
Hiring Momentum
77/100
Scaling fast
Open positions
8
5 opened / 3 closed in 30 days
Median time-to-fill
108 days
faster than 10% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Robotics
33% ▼
Hardware
22% ▲
Industrial Engineering
22% ▲
Administrative
11% ▲
Operations
11% ▲
Activity Timeline
Added EtherCAT to stack
Oct 2026
Added ANSYS to stack
Oct 2026
Added SolidWorks to stack
Oct 2026
Added MIL-STD-461 to stack
Oct 2026
Added SLI/SLO/SLA to stack
Oct 2026
Added FMEA to stack
Oct 2026
Added AS9100 to stack
Oct 2026
Added MIL-STD-810 to stack
Oct 2026
Added GD&T to stack
Oct 2026
Added SciPy to stack
Oct 2026
Added NumPy to stack
Oct 2026
Added MATLAB to stack
Oct 2026
Tech stack
Technologies named in job postings at 9 Mothers over the last 12 months, by layer, with the share of postings for each.
Technologies in use
40
Postings analysed
11
Stack modernity
68/100
Languages
C++64%
Python64%
Rust36%
MATLAB18%
Frameworks & libraries
ROS27%
ROS218%
JAX9%
PyTorch9%
Cloud & platforms
RTOS27%
Linux18%
Windows9%
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Full 9 Mothers tech stack
40 technologies · by team · pay by technology · changes · similar stacks
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Y CombinatorVia a fund
6311 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Austin
Austin
United States
HQ
8 open roles 9 posted in 90 days 63% engineering $192k Avg Salary
hires for Robotics, Hardware, Administrative