Propylon tech stack
Propylon builds mostly with Python, SQL, JavaScript, TypeScript. Its stack also includes AWS, Windows, PostgreSQL, React.js. Python is named in 10 of the 43 job postings Propylon published in the last 12 months (23%). Counted by Alion from the job postings of Propylon, updated Oct 1, 2026.
What programming languages does Propylon use?
Python is named in 23% of job postings at Propylon, followed by SQL (14%), JavaScript (9%), TypeScript (9%).
C 
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What frameworks and libraries does Propylon use?
React.js is named in 9% of job postings at Propylon, followed by Django (7%), Angular (5%), SDL (5%).
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What databases does Propylon use?
PostgreSQL is named in 9% of job postings at Propylon, followed by MySQL (7%), Amazon Aurora (2%), BigQuery (2%).
PostgreSQL
4 9%
MySQL
3 7%
Amazon Aurora
1 2%
BigQuery
1 2%
ElasticSearch
1 2%
Google BigQuery
1 2%
MS SQL
1 2%
Redis
1 2%
What cloud and platforms does Propylon use?
AWS is named in 19% of job postings at Propylon, followed by Windows (14%), Power BI (12%), Amazon EC2 (7%).
AWS
8 19%
Power BI
5 12%
Amazon EC2
3 7%
GCP
3 7%
Debian
2 5%
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What developer tools does Propylon use?
Docker is named in 14% of job postings at Propylon, followed by Microsoft Excel (12%), Git (12%), GraphQL (7%).
Docker
6 14%
Git
5 12%
GraphQL
3 7%
Terraform
3 7%
Ansible
2 5%
Nginx
2 5%
StrongSwan
2 5%
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What AI and ML technologies does Propylon use?
LLM is named in 9% of job postings at Propylon, followed by Claude (2%).
Which engineering practices does Propylon ask for?
Machine Learning is named in 28% of job postings at Propylon, followed by CI/CD (26%), Fine-tuning (23%), Human-in-the-Loop (23%).
CI/CD
11 26%
Fine-tuning
10 23%
Prompt Engineering
10 23%
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What does each Propylon team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Operations
6 postingsBackend
5 postingsSolutions
4 postingsHow does your stack fit Propylon?
How modern is the Propylon stack?
Propylon scores 80 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: 2; legacy ones: 0.
How common is the Propylon stack in its industry?
Share of the 2,389 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Propylon
Questions about the Propylon tech stack
What programming languages does Propylon use?
The languages named in Propylon job postings are Python (23%), SQL (14%), JavaScript (9%), TypeScript (9%), Apex (5%), as a share of the 43 postings of the last 12 months.
Does Propylon use React.js?
Yes. React.js is named in 4 of 43 job postings (9%) and required in 2 of them.
What cloud and platforms does Propylon use?
The cloud and platforms named in Propylon job postings are AWS (8), Windows (6), Power BI (5) (postings in brackets).
What skills do you need for a Operations job at Propylon?
Operations postings at Propylon most often require Windows (4), SDL (2), out of 6 postings in the last 12 months.
Is the Propylon tech stack changing?
No new technology has appeared in Propylon job postings in the last six months.
How modern is the Propylon tech stack?
Propylon scores 80 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: 2; legacy ones: 0.
How does Alion know the Propylon tech stack?
Alion reads every job posting Propylon publishes and tags the technologies each one names. The figures on this page count the 43 postings of the last 12 months and were updated on Oct 1, 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, "Propylon tech stack: 96 technologies from 43 job postings", as of Oct 1, 2026. https://alion.io/company/propylon/technologies