Reasonable tech stack
Reasonable builds mostly with Java, Kotlin, Rust. Its stack also includes AWS, Cloudflare. Java is named in 1 of the 6 job postings Reasonable published in the last 12 months (17%). Counted by Alion from the job postings of Reasonable, updated Nov 10, 2026.
What programming languages does Reasonable use?
Java is named in 17% of job postings at Reasonable, followed by Kotlin (17%), Rust (17%).
What cloud and platforms does Reasonable use?
AWS is named in 17% of job postings at Reasonable, followed by Cloudflare (17%), Datadog (17%).
What developer tools does Reasonable use?
Claude Code is named in 33% of job postings at Reasonable.
Claude Code
2 33%
Which engineering practices does Reasonable ask for?
Machine Learning is named in 100% of job postings at Reasonable, followed by Post-training (50%).
How does your stack fit Reasonable?
How is the Reasonable 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 Reasonable stack?
Reasonable 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 Reasonable stack in its industry?
Share of the 1,501 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Reasonable
Questions about the Reasonable tech stack
What programming languages does Reasonable use?
The languages named in Reasonable job postings are Java (17%), Kotlin (17%), Rust (17%), as a share of the 6 postings of the last 12 months.
What cloud and platforms does Reasonable use?
The cloud and platforms named in Reasonable job postings are AWS (1), Cloudflare (1), Datadog (1) (postings in brackets).
Is the Reasonable tech stack changing?
No new technology has appeared in Reasonable job postings in the last six months.
How modern is the Reasonable tech stack?
Reasonable 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 Reasonable tech stack?
Alion reads every job posting Reasonable publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Nov 10, 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, "Reasonable tech stack: 9 technologies from 6 job postings", as of Nov 10, 2026. https://alion.io/company/reasonable-2/technologies