Prelim tech stack
Prelim builds mostly with Node JS, JavaScript. Its stack also includes PostgreSQL, React.js, AWS, SIEM. Node JS is named in 2 of the 4 job postings Prelim published in the last 12 months (50%). Counted by Alion from the job postings of Prelim, updated Oct 13, 2026.
What programming languages does Prelim use?
Node JS is named in 50% of job postings at Prelim, followed by JavaScript (50%).
Node JS
2 50%
JavaScript
2 50%
What frameworks and libraries does Prelim use?
React.js is named in 50% of job postings at Prelim.
React.js
2 50%
What databases does Prelim use?
PostgreSQL is named in 50% of job postings at Prelim.
PostgreSQL
2 50%
What cloud and platforms does Prelim use?
AWS is named in 25% of job postings at Prelim, followed by SIEM (25%).
AWS
1 25%
Which engineering practices does Prelim ask for?
IAM is named in 50% of job postings at Prelim, followed by CI/CD (25%), Platform Engineering (25%).
How does your stack fit Prelim?
How is the Prelim 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 Prelim stack?
Prelim scores 78 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 Prelim stack in its industry?
Share of the 503 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Prelim
Questions about the Prelim tech stack
What programming languages does Prelim use?
The languages named in Prelim job postings are Node JS (50%), JavaScript (50%), as a share of the 4 postings of the last 12 months.
Does Prelim use React.js?
Yes. React.js is named in 2 of 4 job postings (50%) and required in 2 of them.
What cloud and platforms does Prelim use?
The cloud and platforms named in Prelim job postings are AWS (1), SIEM (1) (postings in brackets).
Is the Prelim tech stack changing?
Yes. IAM first appeared in Prelim job postings in the last six months.
How modern is the Prelim tech stack?
Prelim scores 78 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 Prelim tech stack?
Alion reads every job posting Prelim publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 13, 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, "Prelim tech stack: 9 technologies from 4 job postings", as of Oct 13, 2026. https://alion.io/company/prelim/technologies