Plain tech stack
Plain builds mostly with TypeScript, JavaScript. Its stack also includes Vercel, PostgreSQL, Anthropic, React.js. PostgreSQL is named in 3 of the 4 job postings Plain published in the last 12 months (75%). Counted by Alion from the job postings of Plain, updated Nov 3, 2026.
What programming languages does Plain use?
TypeScript is named in 25% of job postings at Plain, followed by JavaScript (25%).
TypeScript
1 25%
JavaScript
1 25%
What frameworks and libraries does Plain use?
React.js is named in 25% of job postings at Plain.
React.js
1 25%
What databases does Plain use?
PostgreSQL is named in 75% of job postings at Plain.
PostgreSQL
3 75%
What cloud and platforms does Plain use?
Vercel is named in 75% of job postings at Plain, followed by Anthropic (25%), OpenAI (25%), AWS (25%).
Vercel
3 75%
AWS
1 25%
Cloudflare
1 25%
Datadog
1 25%
GitHub Actions
1 25%
What developer tools does Plain use?
Cursor is named in 100% of job postings at Plain, followed by GraphQL (25%), Terraform (25%).
Which engineering practices does Plain ask for?
RAG is named in 25% of job postings at Plain.
RAG
1 25%
How does your stack fit Plain?
How modern is the Plain stack?
Plain scores 85 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: 1; legacy ones: 0.
How common is the Plain stack in its industry?
Share of the 1,399 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Plain
Questions about the Plain tech stack
What programming languages does Plain use?
The languages named in Plain job postings are TypeScript (25%), JavaScript (25%), as a share of the 4 postings of the last 12 months.
Does Plain use Vercel?
Yes. Vercel is named in 3 of 4 job postings (75%) and required in 3 of them.
What cloud and platforms does Plain use?
The cloud and platforms named in Plain job postings are Vercel (3), Anthropic (1), OpenAI (1) (postings in brackets).
Is the Plain tech stack changing?
No new technology has appeared in Plain job postings in the last six months.
How modern is the Plain tech stack?
Plain scores 85 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: 1; legacy ones: 0.
How does Alion know the Plain tech stack?
Alion reads every job posting Plain 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 Nov 3, 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, "Plain tech stack: 16 technologies from 4 job postings", as of Nov 3, 2026. https://alion.io/company/plain-com/technologies