Sumasate
sumasate.jp
Actively hiring
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
How Sumasate hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
Sumasate scores B on the Alion truth index (A is best, E worst), measured over 4 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
Overview
Sumasate is a Japanese AI SaaS startup that offers an AI-powered system for assessing residential rents and producing assessment reports in an instant. Built on more than two billion real estate data records and used by over 5,000 companies, it is led by a former Cookpad vice president and hires backend and lead software engineers, product managers, product designers and sales staff. The company is based in Japan.
Tech stack
Technologies named in job postings at Sumasate over the last 12 months, by layer, with the share of postings for each.
Technologies in use
39
Postings analysed
2
Stack modernity
81/100AI adopter
Languages
JavaScript
Python
TypeScript
Node JS
PHP
Ruby
SQL
Frameworks & libraries
Django
FastAPI
NumPy
PoC Library
PyTorch
Pytest
RSpec
React.js
Databases
BigQuery
ClickHouse
Google BigQuery
MySQL
Cloud & platforms
AWS
GCP
GitHub
Linux
GitHub Actions
Google Colab
Hugging Face
Windows
Developer tools
CircleCI
Docker
Jupyter Notebook
AI & ML
LLM
Practices & domains
CI/CD
LLMOps
Machine Learning
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Salary insights
Compensation ranges based on this company's open jobs
Median
$76k
Typical range
$76k – $95k
Open positions
3
1
Jobs
Staff
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Staff | 1 | $76k | $76k |
Highest paying role
バックエンドエンジニア（データ連携・基盤）
$95k
Normalized to USD per year
Growth
Hiring Momentum
33/100
Slowing
Open positions
7
0 opened / 0 closed in 30 days
ATS activity
Every ~4 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.
Backend
67% ▲
Product
33% ▲
Activity Timeline
New location: Tokyo
Oct 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Tokyo
Tokyo
Japan
HQ
7 open roles 3 posted in 90 days 43% engineering $82k Avg Salary
hires for Backend, Sales, Data Science
Jobs
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$38k – $77k per year • In office • Full-Time • Tokyo
Python
JavaScript
PHP
TypeScript
Ruby
Node JS
Django
Ruby
Ruby on Rails
RSpec
Databases
Google BigQuery
BigQuery
Frontend
Vue.js
React.js
DevOps
GCP
CircleCI
CI/CD
AWS
Docker
GitHub
Linux
Windows
QA
Vitest
Apply
Apply
Apply
In office • Full-Time • Tokyo
Python
JavaScript
TypeScript
SQL
FastAPI
Databases
MySQL
ClickHouse
AI/ML
Jupyter Notebook
Scikit-learn
Google Colab
Transformers
NumPy
PyTorch
LLM
Hugging Face
LLMOps
Machine Learning
DevOps
GCP
GitHub Actions
CircleCI
CI/CD
AWS
Docker
GitHub
Linux
Chips/EDA
PoC Library
QA
Pytest
Apply