APTO
AI Training Data & Annotation
3open roles
$95kmedian advertised pay
2backers · Plug and Play, Nippon Technology Venture Partners
10+team · employees, estimated range
Overview
APTO is a Japanese AI data startup that develops harBest, a platform for collecting and creating training data for AI development at high quality and low cost. It offers a cloud data collection and annotation platform, training datasets and contract AI model development, mainly for large companies, and hires robotics and simulation engineers for physical AI, computer vision researchers, project managers and enterprise sales staff. The company is headquartered in Tokyo, Japan.
How APTO hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
APTO scores B on the Alion truth index (A is best, E worst), measured over 5 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Funding and backers
Team
11-50
employees, estimated range
Hiring now
5
open roles
Backers
2
Plug and Play, Nippon Technology Venture Partners
Momentum
0/100
no fresh signals
Last sign of life
1 mo ago
a posting or a news item
Tractionpublic signals, read monthly
Web presence
top 0.86%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
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Jobs
$38k – $96k per year · In office · Full-Time · Tokyo
Computer Vision
Synthetic Data
Physical AI
Game Dev
Unreal Engine
Robotics
ROS
ROS2
NVIDIA Omniverse
Isaac Sim
MuJoCo
Isaac Lab
Localization
Sim-to-Real
Apply
$38k – $96k per year · In office · Full-Time · Tokyo
Python
C++
Physical AI
Robotics
ROS
ROS2
Apply
$38k – $96k per year · In office · Full-Time · Tokyo
Computer Vision
VLM
LLM
RAG
Apply
Growth
Hiring Momentum
21/100
Hiring freeze
Open positions
5
0 opened / 0 closed in 30 days
Median time-to-fill
127 days
faster than 9% of the market
ATS activity
Every ~5 hours
Today
Hiring Dynamics
0%
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.
AI/ML
100% ▼
Tech stack
Technologies named in job postings at APTO over the last 12 months, by layer, with the share of postings for each.
Technologies in use
22
Postings analysed
6
Stack modernity
81/100AI adopter
Languages
C++
Python
Frameworks & libraries
ROS
ROS2
MuJoCo
Isaac Lab
Cloud & platforms
AWS
Azure
GCP
NVIDIA Omniverse
AI & ML
LLM
VLM
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Full APTO tech stack
22 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
Nippon Technology Venture PartnersVia a fund
Plug and PlayVia a fund
2741 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
Tokyo
Tokyo
Japan
HQ
5 open roles 40% engineering 10-50 est. staff $95k Avg Salary
hires for Robotics, Management, Sales