Prossell
IT Consulting & Digital Transformation
Overview
Prossell is a Japanese digital solutions company that works closely with engineers trained at national colleges of technology (kosen). It covers AI, image processing, web and mobile development and cybersecurity, adopted a holding structure in November 2025, and hires machine learning, software, security, QA and PLC engineers. The company is headquartered in Niigata, Japan.
Key facts
As of Nov 13, 2026, Alion lists 6 open roles at Prossell. Prossell is headquartered in Niigata, Japan.
- Open roles
- 6Its careers board, read on Nov 13, 2026
- Headquarters
- Niigata, JapanAlion company profile, updated Nov 13, 2026
- Technologies in its job postings
- 5Named in its job postings
How Prossell hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
Prossell scores B on the Alion truth index (A is best, E worst), measured over 6 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
Jobs
Apply
Apply
Apply
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Growth
Hiring Momentum
28/100
Slowing
Open positions
6
0 opened / 0 closed in 30 days
ATS activity
Every ~6 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
33% ▼
AI/ML
17% ▼
QA
17% ▼
Security
17% ▼
Industrial Engineering
17% ▼
Tech stack
Technologies named in job postings at Prossell over the last 12 months, by layer, with the share of postings for each.
Technologies in use
5
Postings analysed
2
Stack modernity
86/100AI adopter
Frameworks & libraries
LiteRT
Databases
Snowflake
Cloud & platforms
AWS
Databricks
AI & ML
LLM
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News
高専生向けのeラーニングアプリ「Prossell ラーニングβ版」がリリース、既に鈴鹿高専、和歌山高専に先行導入が決定高専生の起業家教育を支援 - CNET Japan -
高専生向けのeラーニングアプリ「Prossell ラーニングβ版」がリリース、既に鈴鹿高専、和歌山高専に先行導入が決定高専生の起業家教育を支援
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Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
1
Busiest office
Niigata
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Headquarters
Builds here
Office with open vacancies
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Niigata
Japan
HQ
5 open roles 100% engineering
hires for Backend, AI/ML, QA
Nagaoka
Japan
1 open roles
hires for Industrial Engineering
How to cite this page
Alion, "Prossell: key facts", as of Nov 13, 2026. https://alion.io/company/prossell
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0