D One tech stack
D One builds mostly with Python, SQL, Node JS, JavaScript. Its stack also includes Databricks, Azure, Snowflake, LangChain. Python is named in 5 of the 6 job postings D One published in the last 12 months (83%). Counted by Alion from the job postings of D One, updated Sep 30, 2026.
What programming languages does D One use?
Python is named in 83% of job postings at D One, followed by SQL (83%), Node JS (17%), JavaScript (17%).
What frameworks and libraries does D One use?
LangChain is named in 17% of job postings at D One, followed by React.js (17%), Vue.js (17%).
What cloud and platforms does D One use?
Databricks is named in 83% of job postings at D One, followed by Azure (67%), Spark (50%), AWS (33%).
Databricks
5 83%
Azure
4 67%
Spark
3 50%
AWS
2 33%
GCP
2 33%
Microsoft Fabric
2 33%
Show all (9)
What developer tools does D One use?
dbt is named in 50% of job postings at D One, followed by Azure Data Factory (33%), GraphQL (17%), Rest API (17%).
Which engineering practices does D One ask for?
ETL/ELT is named in 33% of job postings at D One, followed by RAG (33%), AI Agents (17%), Data Vault (17%).
What does each D One team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
4 postingsHow does your stack fit D One?
How is the D One 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 D One stack?
D One scores 81 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 D One stack in its industry?
Share of the 2,037 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like D One
Questions about the D One tech stack
What programming languages does D One use?
The languages named in D One job postings are Python (83%), SQL (83%), Node JS (17%), JavaScript (17%), as a share of the 6 postings of the last 12 months.
Does D One use Databricks?
Yes. Databricks is named in 5 of 6 job postings (83%) and required in 5 of them.
What cloud and platforms does D One use?
The cloud and platforms named in D One job postings are Databricks (5), Azure (4), Spark (3) (postings in brackets).
What skills do you need for a AI/ML job at D One?
AI/ML postings at D One most often require Python (4), Databricks (3), SQL (3), Spark (3), out of 4 postings in the last 12 months.
Is the D One tech stack changing?
Yes. Azure, AWS, ETL/ELT, GCP first appeared in D One job postings in the last six months.
How modern is the D One tech stack?
D One scores 81 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 D One tech stack?
Alion reads every job posting D One publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Sep 30, 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, "D One tech stack: 27 technologies from 6 job postings", as of Sep 30, 2026. https://alion.io/company/d-one/technologies