PLEX tech stack
PLEX builds mostly with Ruby, TypeScript, JavaScript, Python. Its stack also includes Figma, React.js, Ruby on Rails, Firebase. Ruby is named in 12 of the 13 job postings PLEX published in the last 12 months (92%). Counted by Alion from the job postings of PLEX, updated Sep 27, 2026.
What programming languages does PLEX use?
Ruby is named in 92% of job postings at PLEX, followed by TypeScript (92%), JavaScript (92%), Python (15%).
What frameworks and libraries does PLEX use?
React.js is named in 92% of job postings at PLEX, followed by Ruby on Rails (92%), Next.js (85%), Apollo Client (15%).
React.js
12 92%
Ruby on Rails
12 92%
Next.js
11 85%
Apollo Client
2 15%
Django
2 15%
Material UI
2 15%
Tailwind CSS
2 15%
What databases does PLEX use?
PostgreSQL is named in 46% of job postings at PLEX, followed by BigQuery (8%), Google BigQuery (8%).
BigQuery 
What cloud and platforms does PLEX use?
Figma is named in 92% of job postings at PLEX, followed by Firebase (85%), GCP (85%), GitHub (85%).
Figma
12 92%
Firebase
11 85%
GCP
11 85%
GitHub
11 85%
Vercel
11 85%
Datadog
9 69%
Heroku
5 38%
AWS
3 23%
Show all (9)
What developer tools does PLEX use?
Docker is named in 85% of job postings at PLEX, followed by Claude Code (46%), Copilot (46%), Devin (46%).
Which engineering practices does PLEX ask for?
CI/CD is named in 15% of job postings at PLEX.
CI/CD
2 15%
What does each PLEX team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
7 postingsHow does your stack fit PLEX?
How is the PLEX stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the PLEX stack?
PLEX scores 77 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the PLEX stack in its industry?
Share of the 1,010 companies in the same industries, whose stack Alion knows, that use each technology.
What sets PLEX apart
Companies with a stack like PLEX
Questions about the PLEX tech stack
What programming languages does PLEX use?
The languages named in PLEX job postings are Ruby (92%), TypeScript (92%), JavaScript (92%), Python (15%), as a share of the 13 postings of the last 12 months.
Does PLEX use React.js?
Yes. React.js is named in 12 of 13 job postings (92%) and required in 11 of them.
What cloud and platforms does PLEX use?
The cloud and platforms named in PLEX job postings are Figma (12), Firebase (11), GCP (11) (postings in brackets).
What skills do you need for a Backend job at PLEX?
Backend postings at PLEX most often require Docker (6), Figma (6), Firebase (6), GCP (6), out of 7 postings in the last 12 months.
Is the PLEX tech stack changing?
No new technology has appeared in PLEX job postings in the last six months.
How modern is the PLEX tech stack?
PLEX scores 77 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the PLEX tech stack?
Alion reads every job posting PLEX publishes and tags the technologies each one names. The figures on this page count the 13 postings of the last 12 months and were updated on Sep 27, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "PLEX tech stack: 30 technologies from 13 job postings", as of Sep 27, 2026. https://alion.io/company/plex-co-jp/technologies