Brex tech stack
Brex builds mostly with SQL, Python, Kotlin, Java. Its stack also includes Snowflake, Looker, Figma, React.js. SQL is named in 66 of the 162 job postings Brex published in the last 12 months (41%). Counted by Alion from the job postings of Brex, updated Sep 27, 2026.
What programming languages does Brex use?
SQL is named in 41% of job postings at Brex, followed by Python (26%), Kotlin (17%), Java (13%).
SQL
66 41%
Python
42 26%
Kotlin
28 17%
Java
21 13%
JavaScript
21 13%
TypeScript
20 12%
Elixir
3 2%
Go
2 1%
What frameworks and libraries does Brex use?
React.js is named in 7% of job postings at Brex, followed by React Native (5%), Flink (3%), GSAP (2%).
p5.js 
What databases does Brex use?
Snowflake is named in 12% of job postings at Brex, followed by PostgreSQL (6%), Amazon Aurora (4%), ElasticSearch (2%).
What cloud and platforms does Brex use?
Looker is named in 10% of job postings at Brex, followed by Figma (9%), AWS (7%), Kubernetes (7%).
Figma
14 9%
AWS
11 7%
Kubernetes
11 7%
Apache Kafka
8 5%
Azure
6 4%
Buildkite
6 4%
GCP
6 4%
Show all (18)
What developer tools does Brex use?
Webpack is named in 7% of job postings at Brex, followed by Terraform (6%), GraphQL (4%), Model Context Protocol (3%).
Show all (17)
What AI and ML technologies does Brex use?
LLM is named in 18% of job postings at Brex, followed by Claude (12%), ChatGPT (4%), Gemini (2%).
Which engineering practices does Brex ask for?
AI Agents is named in 28% of job postings at Brex, followed by A/B Testing (9%), Agentic Workflows (7%), Prompt Engineering (7%).
AI Agents
46 28%
Prompt Engineering
11 7%
CI/CD
10 6%
SLI/SLO/SLA
8 5%
RAG
8 5%
Show all (14)
What does each Brex team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
28 postingsFinance
23 postingsSales
17 postingsDesign
15 postingsProduct
13 postingsLeadership
12 postingsHow does your stack fit Brex?
How much does Brex pay by technology?
Median stated pay of the postings that name each technology, against the median of all Brex postings with stated pay: $234k across 122 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| SQL | 44 | $240k | +3% |
| Python | 28 | $240k | +3% |
| LLM | 19 | $218k | −7% |
| Kotlin | 18 | $240k | +3% |
| JavaScript | 15 | $240k | +3% |
| Claude | 15 | $193k | −18% |
| Figma | 14 | $234k | 0% |
| Looker | 14 | $175k | −25% |
| Snowflake | 13 | $170k | −28% |
| TypeScript | 12 | $240k | +3% |
How is the Brex 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 Brex stack?
Brex 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: 5; legacy ones: 0.
How common is the Brex stack in its industry?
Share of the 468 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Brex apart
Companies with a stack like Brex
Questions about the Brex tech stack
What programming languages does Brex use?
The languages named in Brex job postings are SQL (41%), Python (26%), Kotlin (17%), Java (13%), JavaScript (13%), as a share of the 162 postings of the last 12 months.
Does Brex use React.js?
Yes. React.js is named in 11 of 162 job postings (7%) and required in 3 of them.
What cloud and platforms does Brex use?
The cloud and platforms named in Brex job postings are Looker (17), Figma (14), AWS (11) (postings in brackets).
What skills do you need for a Backend job at Brex?
Backend postings at Brex most often require Kotlin (23), Java (21), SQL (18), Python (17), out of 28 postings in the last 12 months.
Is the Brex tech stack changing?
Yes. GitHub, Adobe After Effects, Midjourney, Framer first appeared in Brex job postings in the last six months.
How modern is the Brex tech stack?
Brex 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: 5; legacy ones: 0.
How does Alion know the Brex tech stack?
Alion reads every job posting Brex publishes and tags the technologies each one names. The figures on this page count the 162 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, "Brex tech stack: 74 technologies from 162 job postings", as of Sep 27, 2026. https://alion.io/company/brex/technologies