Anthropic tech stack
Anthropic builds mostly with Python, SQL, Rust, TypeScript. Its stack also includes GCP, AWS, Google BigQuery, React.js. Python is named in 275 of the 1,090 job postings Anthropic published in the last 12 months (25%). Counted by Alion from the job postings of Anthropic, updated Nov 12, 2026.
What programming languages does Anthropic use?
Python is named in 25% of job postings at Anthropic, followed by SQL (13%), Rust (6%), TypeScript (4%).
Python
275 25%
SQL
142 13%
Rust
66 6%
TypeScript
45 4%
JavaScript
31 3%
Go
26 2%
C++
23 2%
Java
16 1%
Show all (16)
What frameworks and libraries does Anthropic use?
React.js is named in 2% of job postings at Anthropic, followed by PyTorch (1%), JAX (1%), CUDA (<1%).
React.js
21 2%
PyTorch
12 1%
JAX
9 1%
Next.js
4 <1%
Transformers
4 <1%
Show all (24)
What databases does Anthropic use?
Google BigQuery is named in 3% of job postings at Anthropic, followed by Snowflake (1%), PostgreSQL (<1%), Amazon Redshift (<1%).
Google BigQuery
28 3%
Snowflake
10 1%
PostgreSQL
3 <1%
Amazon Redshift
2 <1%
DuckDB
2 <1%
ClickHouse
2 <1%
Google Cloud Spanner
2 <1%
Redis
2 <1%
Show all (18)
What cloud and platforms does Anthropic use?
GCP is named in 10% of job postings at Anthropic, followed by AWS (10%), Azure (6%), Kubernetes (6%).
GCP
112 10%
AWS
112 10%
Azure
64 6%
Kubernetes
63 6%
GitHub
15 1%
Tableau
12 1%
Show all (43)
And 3 more, each named in fewer postings.
What developer tools does Anthropic use?
TPU is named in 3% of job postings at Anthropic, followed by AWS Trainium (2%), dbt (1%), Terraform (1%).
dbt
16 1%
Terraform
15 1%
Rest API
9 1%
Prometheus
7 1%
Show all (52)
And 12 more, each named in fewer postings.
What AI and ML technologies does Anthropic use?
LLM is named in 19% of job postings at Anthropic.
LLM
209 19%
Which engineering practices does Anthropic ask for?
Multimodal AI is named in 100% of job postings at Anthropic, followed by Interpretability (94%), Machine Learning (13%), AI Agents (9%).
Multimodal AI
1089 100%
AI Agents
103 9%
CI/CD
41 4%
Reinforcement Learning
39 4%
Fine-tuning
23 2%
Prompt Engineering
23 2%
Show all (100)
And 60 more, each named in fewer postings.
What does each Anthropic team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Sales
173 postingsAI/ML
133 postingsBackend
117 postingsProduct
73 postingsFinance
68 postingsOperations
63 postingsHow does your stack fit Anthropic?
How much does Anthropic pay by technology?
Median stated pay of the postings that name each technology, against the median of all Anthropic postings with stated pay: $365k across 891 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 232 | $405k | +11% |
| LLM | 161 | $345k | −5% |
| SQL | 130 | $326k | −11% |
| GCP | 102 | $450k | +23% |
| AWS | 101 | $425k | +16% |
| Rust | 62 | $485k | +33% |
| Azure | 59 | $405k | +11% |
| Kubernetes | 55 | $485k | +33% |
| TypeScript | 43 | $405k | +11% |
| JavaScript | 31 | $405k | +11% |
How is the Anthropic 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 Anthropic stack?
Anthropic scores 65 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: 1; legacy ones: 0.
How common is the Anthropic stack in its industry?
Share of the 522 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Anthropic apart
Anthropic products in its job postings
Postings at Anthropic name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Anthropic
Questions about the Anthropic tech stack
What programming languages does Anthropic use?
The languages named in Anthropic job postings are Python (25%), SQL (13%), Rust (6%), TypeScript (4%), JavaScript (3%), as a share of the 1,090 postings of the last 12 months.
Does Anthropic use React.js?
Yes. React.js is named in 21 of 1,090 job postings (2%) and required in 21 of them.
What cloud and platforms does Anthropic use?
The cloud and platforms named in Anthropic job postings are GCP (112), AWS (112), Azure (64) (postings in brackets).
What skills do you need for a Sales job at Anthropic?
Sales postings at Anthropic most often require AWS (15), GCP (12), Azure (7), LLM (7), out of 173 postings in the last 12 months.
Is the Anthropic tech stack changing?
Yes. Reinforcement Learning, ISO 42001, Flink, Instructor first appeared in Anthropic job postings in the last six months.
How modern is the Anthropic tech stack?
Anthropic scores 65 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: 1; legacy ones: 0.
How does Alion know the Anthropic tech stack?
Alion reads every job posting Anthropic publishes and tags the technologies each one names. The figures on this page count the 1,090 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, "Anthropic tech stack: 254 technologies from 1,090 job postings", as of Nov 12, 2026. https://alion.io/company/anthropic/technologies