Cloudflare tech stack
Cloudflare builds mostly with Python, JavaScript, Go, Rust. Its stack also includes Galileo, Tableau, PostgreSQL, ClickHouse. Galileo is named in 230 of the 467 job postings Cloudflare published in the last 12 months (49%). Counted by Alion from the job postings of Cloudflare, updated Sep 27, 2026.
What programming languages does Cloudflare use?
Python is named in 30% of job postings at Cloudflare, followed by JavaScript (23%), Go (20%), Rust (12%).
Python
142 30%
JavaScript
109 23%
Go
94 20%
Rust
57 12%
TypeScript
54 12%
Lua
41 9%
SQL
41 9%
C++
25 5%
Show all (18)
What frameworks and libraries does Cloudflare use?
React.js is named in 2% of job postings at Cloudflare, followed by PoC Library (1%), LangChain (1%), LangGraph (1%).
React.js
8 2%
LangChain
4 1%
LangGraph
4 1%
PyTorch
4 1%
Flink
3 1%
TensorFlow
3 1%
Show all (25)
What databases does Cloudflare use?
PostgreSQL is named in 9% of job postings at Cloudflare, followed by ClickHouse (7%), MySQL (3%), Redis (1%).
PostgreSQL
43 9%
ClickHouse
31 7%
MySQL
14 3%
Redis
7 1%
Google BigQuery
7 1%
BigQuery
5 1%
MS SQL
4 1%
ElasticSearch
3 1%
Show all (25)
What cloud and platforms does Cloudflare use?
Galileo is named in 49% of job postings at Cloudflare, followed by Tableau (15%), Kubernetes (10%), GCP (9%).
Tableau
69 15%
Kubernetes
48 10%
GCP
44 9%
AWS
39 8%
Azure
33 7%
Grafana
32 7%
Show all (40)
What developer tools does Cloudflare use?
Terraform is named in 14% of job postings at Cloudflare, followed by GraphQL (10%), Pulumi (9%), Prometheus (6%).
Terraform
67 14%
GraphQL
47 10%
Pulumi
41 9%
Prometheus
28 6%
Docker
20 4%
Model Context Protocol
19 4%
Windsurf
16 3%
Ansible
11 2%
Show all (50)
And 10 more, each named in fewer postings.
What AI and ML technologies does Cloudflare use?
LLM is named in 20% of job postings at Cloudflare, followed by ChatGPT (<1%).
Which engineering practices does Cloudflare ask for?
DNS is named in 100% of job postings at Cloudflare, followed by AI Agents (25%), RAG (16%), BGP (15%).
AI Agents
118 25%
RAG
75 16%
CI/CD
72 15%
Prompt Engineering
72 15%
Show all (47)
And 7 more, each named in fewer postings.
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
129 postingsSolutions
93 postingsBackend
61 postingsSecurity
21 postingsProduct
21 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: $253k across 164 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Galileo | 85 | $254k | 0% |
| Python | 40 | $246k | −3% |
| JavaScript | 34 | $275k | +9% |
| LLM | 28 | $275k | +9% |
| Go | 27 | $234k | −7% |
| Tableau | 25 | $321k | +27% |
| Rust | 21 | $140k | −45% |
| Linux | 18 | $122k | −52% |
| GCP | 16 | $266k | +5% |
| AWS | 16 | $266k | +5% |
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 73 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 2; legacy ones: 0.
How common is the Cloudflare stack in its industry?
Share of the 107 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 (30%), JavaScript (23%), Go (20%), Rust (12%), TypeScript (12%), as a share of the 467 postings of the last 12 months.
Does Cloudflare use React.js?
Yes. React.js is named in 8 of 467 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 (230), Tableau (69), Kubernetes (48) (postings in brackets).
What skills do you need for a Sales job at Cloudflare?
Sales postings at Cloudflare most often require Tableau (8), DLP (2), out of 129 postings in the last 12 months.
Is the Cloudflare tech stack changing?
Yes. Memcached, C#, Sentry, AWS Lambda first appeared in Cloudflare job postings in the last six months.
How modern is the Cloudflare tech stack?
Cloudflare scores 73 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 2; 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 467 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, "Cloudflare tech stack: 207 technologies from 467 job postings", as of Sep 27, 2026. https://alion.io/company/cloudflare/technologies