Stack Overflow tech stack
Stack Overflow builds mostly with Python, SQL. Its stack also includes Azure, Databricks, Delta Lake. Python is named in 1 of the 3 job postings Stack Overflow published in the last 12 months (33%). Counted by Alion from the job postings of Stack Overflow, updated Oct 17, 2026.
What programming languages does Stack Overflow use?
Python is named in 33% of job postings at Stack Overflow, followed by SQL (33%).
What databases does Stack Overflow use?
Delta Lake is named in 33% of job postings at Stack Overflow.
Delta Lake
1 33%
What cloud and platforms does Stack Overflow use?
Azure is named in 33% of job postings at Stack Overflow, followed by Databricks (33%), GCP (33%), Power BI (33%).
What developer tools does Stack Overflow use?
pySpark is named in 33% of job postings at Stack Overflow.
pySpark
1 33%
What AI and ML technologies does Stack Overflow use?
LLM is named in 33% of job postings at Stack Overflow.
LLM
1 33%
Which engineering practices does Stack Overflow ask for?
CI/CD is named in 33% of job postings at Stack Overflow, followed by Fine-tuning (33%), Machine Learning (33%), SFT (33%).
How does your stack fit Stack Overflow?
How modern is the Stack Overflow stack?
Stack Overflow scores 84 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: 1; legacy ones: 0.
How common is the Stack Overflow stack in its industry?
Share of the 219 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Stack Overflow
Questions about the Stack Overflow tech stack
What programming languages does Stack Overflow use?
The languages named in Stack Overflow job postings are Python (33%), SQL (33%), as a share of the 3 postings of the last 12 months.
What cloud and platforms does Stack Overflow use?
The cloud and platforms named in Stack Overflow job postings are Azure (1), Databricks (1), GCP (1) (postings in brackets).
Is the Stack Overflow tech stack changing?
No new technology has appeared in Stack Overflow job postings in the last six months.
How modern is the Stack Overflow tech stack?
Stack Overflow scores 84 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: 1; legacy ones: 0.
How does Alion know the Stack Overflow tech stack?
Alion reads every job posting Stack Overflow publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Oct 17, 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, "Stack Overflow tech stack: 14 technologies from 3 job postings", as of Oct 17, 2026. https://alion.io/company/stackoverflow/technologies