Similarweb tech stack
Similarweb builds mostly with Python, SQL, Node JS, JavaScript. Its stack also includes AWS, Databricks, React.js, Nest.JS. Python is named in 19 of the 43 job postings Similarweb published in the last 12 months (44%). Counted by Alion from the job postings of Similarweb, updated Sep 28, 2026.
What programming languages does Similarweb use?
Python is named in 44% of job postings at Similarweb, followed by SQL (23%), Node JS (19%), JavaScript (19%).
Show all (10)
What frameworks and libraries does Similarweb use?
React.js is named in 14% of job postings at Similarweb, followed by Nest.JS (9%), LangGraph (7%), LangChain (7%).
React.js
6 14%
Nest.JS
4 9%
LangGraph
3 7%
LangChain
3 7%
FastAI
2 5%
Hadoop
2 5%
PyTorch
2 5%
ASP.NET Core
1 2%
Show all (10)
What databases does Similarweb use?
Amazon Redshift is named in 2% of job postings at Similarweb, followed by DynamoDB (2%), MySQL (2%), Redis (2%).
What cloud and platforms does Similarweb use?
AWS is named in 40% of job postings at Similarweb, followed by Databricks (21%), Spark (21%), Kubernetes (19%).
AWS
17 40%
Databricks
9 21%
Spark
9 21%
Kubernetes
8 19%
GCP
6 14%
Azure
4 9%
Figma
2 5%
Show all (19)
What developer tools does Similarweb use?
Cursor is named in 14% of job postings at Similarweb, followed by pySpark (14%), Docker (9%), Copilot (7%).
Show all (12)
What AI and ML technologies does Similarweb use?
LLM is named in 30% of job postings at Similarweb, followed by Claude (21%), ChatGPT (7%).
Which engineering practices does Similarweb ask for?
AI Agents is named in 23% of job postings at Similarweb, followed by CI/CD (21%), Prompt Engineering (21%), Machine Learning (12%).
AI Agents
10 23%
CI/CD
9 21%
Prompt Engineering
9 21%
Show all (12)
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
10 postingsBackend
9 postingsAnalytics
3 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 91 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 82 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 (44%), SQL (23%), Node JS (19%), JavaScript (19%), TypeScript (14%), as a share of the 43 postings of the last 12 months.
Does Similarweb use React.js?
Yes. React.js is named in 6 of 43 job postings (14%) and required in 5 of them.
What cloud and platforms does Similarweb use?
The cloud and platforms named in Similarweb job postings are AWS (17), Databricks (9), Spark (9) (postings in brackets).
What skills do you need for a Data Science job at Similarweb?
Data Science postings at Similarweb most often require Python (7), Databricks (5), AWS (4), SQL (4), out of 10 postings in the last 12 months.
Is the Similarweb tech stack changing?
Yes. Cursor, ChatGPT, Copilot, Vite first appeared in Similarweb job postings in the last six months.
How modern is the Similarweb tech stack?
Similarweb scores 91 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 43 postings of the last 12 months and were updated on Sep 28, 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: 71 technologies from 43 job postings", as of Sep 28, 2026. https://alion.io/company/similarweb/technologies