Cloudflare tech stack
Cloudflare builds mostly with Python, JavaScript, Go, Rust. Its stack also includes Galileo, Tableau, PostgreSQL, ClickHouse. Galileo is named in 336 of the 721 job postings Cloudflare published in the last 12 months (47%). Counted by Alion from the job postings of Cloudflare, updated Nov 12, 2026.
What programming languages does Cloudflare use?
Python is named in 28% of job postings at Cloudflare, followed by JavaScript (21%), Go (18%), Rust (12%).
Python
204 28%
JavaScript
155 21%
Go
133 18%
Rust
90 12%
TypeScript
83 12%
SQL
62 9%
Lua
58 8%
C++
43 6%
Show all (22)
What frameworks and libraries does Cloudflare use?
React.js is named in 2% of job postings at Cloudflare, followed by LangChain (1%), LangGraph (1%), OpenAI Agents SDK (1%).
React.js
11 2%
LangChain
6 1%
LangGraph
6 1%
PyTorch
4 1%
Flink
3 <1%
TensorFlow
3 <1%
Playwright
2 <1%
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What databases does Cloudflare use?
PostgreSQL is named in 9% of job postings at Cloudflare, followed by ClickHouse (6%), MySQL (3%), Google BigQuery (2%).
PostgreSQL
63 9%
ClickHouse
40 6%
MySQL
22 3%
Google BigQuery
16 2%
Redis
11 2%
MS SQL
10 1%
ElasticSearch
7 1%
Snowflake
4 1%
Show all (25)
What cloud and platforms does Cloudflare use?
Galileo is named in 47% of job postings at Cloudflare, followed by Tableau (15%), Linux (10%), Kubernetes (9%).
Tableau
108 15%
Kubernetes
68 9%
GCP
63 9%
AWS
60 8%
Azure
52 7%
Grafana
43 6%
Show all (52)
And 12 more, each named in fewer postings.
What developer tools does Cloudflare use?
Terraform is named in 13% of job postings at Cloudflare, followed by Rest API (10%), GraphQL (9%), Pulumi (8%).
Terraform
97 13%
Rest API
69 10%
GraphQL
64 9%
Pulumi
61 8%
Prometheus
40 6%
Docker
31 4%
Model Context Protocol
30 4%
Windsurf
19 3%
Show all (63)
And 23 more, each named in fewer postings.
What AI and ML technologies does Cloudflare use?
LLM is named in 17% of job postings at Cloudflare, followed by Claude (<1%), ChatGPT (<1%), Gemini (<1%).
Which engineering practices does Cloudflare ask for?
DNS is named in 100% of job postings at Cloudflare, followed by AI Agents (23%), BGP (15%), CI/CD (14%).
AI Agents
167 23%
CI/CD
104 14%
RAG
101 14%
Prompt Engineering
94 13%
Show all (60)
And 20 more, each named in fewer postings.
What other technologies does Cloudflare use?
Bitcoin is named in <1% of job postings at Cloudflare.
Bitcoin
1 <1%
What does each Cloudflare team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Sales
214 postingsSolutions
126 postingsBackend
75 postingsIndustrial Engineering
36 postingsProduct
34 postingsLeadership
27 postingsHow does your stack fit Cloudflare?
How much does Cloudflare pay by technology?
Median stated pay of the postings that name each technology, against the median of all Cloudflare postings with stated pay: $234k across 291 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Galileo | 150 | $234k | 0% |
| Python | 71 | $231k | −1% |
| JavaScript | 60 | $251k | +7% |
| Go | 50 | $206k | −12% |
| LLM | 45 | $275k | +18% |
| Tableau | 43 | $336k | +44% |
| Rust | 42 | $124k | −47% |
| Linux | 34 | $111k | −52% |
| TypeScript | 32 | $168k | −28% |
| AWS | 26 | $214k | −9% |
How is the Cloudflare 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 Cloudflare stack?
Cloudflare 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: 4; legacy ones: 0.
How common is the Cloudflare stack in its industry?
Share of the 155 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Cloudflare apart
Cloudflare products in its job postings
Postings at Cloudflare name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Cloudflare
Questions about the Cloudflare tech stack
What programming languages does Cloudflare use?
The languages named in Cloudflare job postings are Python (28%), JavaScript (21%), Go (18%), Rust (12%), TypeScript (12%), as a share of the 721 postings of the last 12 months.
Does Cloudflare use React.js?
Yes. React.js is named in 11 of 721 job postings (2%) and required in 4 of them.
What cloud and platforms does Cloudflare use?
The cloud and platforms named in Cloudflare job postings are Galileo (336), Tableau (108), Linux (74) (postings in brackets).
What skills do you need for a Sales job at Cloudflare?
Sales postings at Cloudflare most often require Tableau (24), Galileo (7), DLP (3), LLM (3), out of 214 postings in the last 12 months.
Is the Cloudflare tech stack changing?
Yes. ETAP, Replicate, Smart Contracts, Claude first appeared in Cloudflare job postings in the last six months.
How modern is the Cloudflare tech stack?
Cloudflare 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: 4; legacy ones: 0.
How does Alion know the Cloudflare tech stack?
Alion reads every job posting Cloudflare publishes and tags the technologies each one names. The figures on this page count the 721 postings of the last 12 months and were updated on Nov 12, 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, "Cloudflare tech stack: 259 technologies from 721 job postings", as of Nov 12, 2026. https://alion.io/company/cloudflare/technologies