Similarweb tech stack
Similarweb builds mostly with Python, SQL, Node JS, JavaScript. Its stack also includes AWS, Spark, LangGraph, LangChain. Python is named in 34 of the 66 job postings Similarweb published in the last 12 months (52%). Counted by Alion from the job postings of Similarweb, updated Nov 12, 2026.
What programming languages does Similarweb use?
Python is named in 52% of job postings at Similarweb, followed by SQL (33%), Node JS (14%), JavaScript (14%).
Show all (11)
What frameworks and libraries does Similarweb use?
LangGraph is named in 12% of job postings at Similarweb, followed by LangChain (12%), React.js (11%), Nest.JS (8%).
LangGraph
8 12%
LangChain
8 12%
React.js
7 11%
Nest.JS
5 8%
Hadoop
3 5%
FastAI
2 3%
PyTorch
2 3%
Show all (14)
What databases does Similarweb use?
Snowflake is named in 8% of job postings at Similarweb, followed by Amazon Redshift (3%), Redis (3%), ClickHouse (2%).
Snowflake
5 8%
Amazon Redshift
2 3%
Redis
2 3%
ClickHouse
1 2%
DuckDB
1 2%
DynamoDB
1 2%
Google BigQuery
1 2%
MySQL
1 2%
Show all (9)
What cloud and platforms does Similarweb use?
AWS is named in 38% of job postings at Similarweb, followed by Spark (20%), Databricks (20%), Kubernetes (18%).
AWS
25 38%
Spark
13 20%
Databricks
13 20%
Kubernetes
12 18%
GCP
7 11%
Azure
4 6%
Figma
4 6%
Show all (25)
What developer tools does Similarweb use?
pySpark is named in 15% of job postings at Similarweb, followed by Cursor (14%), Docker (9%), Model Context Protocol (9%).
Show all (17)
What AI and ML technologies does Similarweb use?
LLM is named in 36% of job postings at Similarweb, followed by Claude (17%), ChatGPT (6%).
Which engineering practices does Similarweb ask for?
AI Agents is named in 29% of job postings at Similarweb, followed by CI/CD (20%), Prompt Engineering (20%), Machine Learning (8%).
AI Agents
19 29%
CI/CD
13 20%
Prompt Engineering
13 20%
RAG
4 6%
Show all (18)
What does each Similarweb team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Data Science
14 postingsBackend
11 postingsAnalytics
8 postingsProduct
7 postingsMarketing
5 postingsHow does your stack fit Similarweb?
How is the Similarweb 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 Similarweb stack?
Similarweb scores 89 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: 3; legacy ones: 0.
How common is the Similarweb stack in its industry?
Share of the 298 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Similarweb apart
Companies with a stack like Similarweb
Questions about the Similarweb tech stack
What programming languages does Similarweb use?
The languages named in Similarweb job postings are Python (52%), SQL (33%), Node JS (14%), JavaScript (14%), TypeScript (11%), as a share of the 66 postings of the last 12 months.
Does Similarweb use LangGraph?
Yes. LangGraph is named in 8 of 66 job postings (12%) and required in 8 of them.
What cloud and platforms does Similarweb use?
The cloud and platforms named in Similarweb job postings are AWS (25), Spark (13), Databricks (13) (postings in brackets).
What skills do you need for a Data Science job at Similarweb?
Data Science postings at Similarweb most often require Python (10), AWS (7), Databricks (7), SQL (6), out of 14 postings in the last 12 months.
Is the Similarweb tech stack changing?
Yes. Claude Code, Structured Outputs, GitLab, Model Context Protocol first appeared in Similarweb job postings in the last six months.
How modern is the Similarweb tech stack?
Similarweb scores 89 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: 3; legacy ones: 0.
How does Alion know the Similarweb tech stack?
Alion reads every job posting Similarweb publishes and tags the technologies each one names. The figures on this page count the 66 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, "Similarweb tech stack: 97 technologies from 66 job postings", as of Nov 12, 2026. https://alion.io/company/similarweb/technologies