E Source tech stack
E Source builds mostly with Python, SQL, Java, JavaScript. Its stack also includes AWS, Databricks, React.js, Streamlit. Python is named in 11 of the 14 job postings E Source published in the last 12 months (79%). Counted by Alion from the job postings of E Source, updated Oct 3, 2026.
What programming languages does E Source use?
Python is named in 79% of job postings at E Source, followed by SQL (43%), Java (14%), JavaScript (14%).
SPSS 
Stata 
What frameworks and libraries does E Source use?
React.js is named in 14% of job postings at E Source, followed by Streamlit (14%), AutoGen (7%), Gradio (7%).
React.js
2 14%
Streamlit
2 14%
AutoGen
1 7%
Gradio
1 7%
LangChain
1 7%
LangGraph
1 7%
LlamaIndex
1 7%
Spring Boot
1 7%
What databases does E Source use?
PostgreSQL is named in 7% of job postings at E Source.
PostgreSQL
1 7%
What cloud and platforms does E Source use?
AWS is named in 43% of job postings at E Source, followed by Databricks (43%), Spark (36%), Azure (21%).
AWS
6 43%
Databricks
6 43%
Spark
5 36%
Azure
3 21%
GCP
2 14%
Apache Kafka
1 7%
Kubernetes
1 7%
What developer tools does E Source use?
Git is named in 36% of job postings at E Source, followed by Docker (29%), GraphQL (14%), Rest API (14%).
What AI and ML technologies does E Source use?
LLM is named in 14% of job postings at E Source.
LLM
2 14%
Which engineering practices does E Source ask for?
Machine Learning is named in 43% of job postings at E Source, followed by AI Agents (21%), CI/CD (21%), Knowledge Graph (21%).
AI Agents
3 21%
CI/CD
3 21%
RAG
3 21%
Time Series Forecasting
2 14%
Anomaly Detection
1 7%
Fine-tuning
1 7%
Show all (15)
What does each E Source team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Data Science
4 postingsHow does your stack fit E Source?
How much does E Source pay by technology?
Median stated pay of the postings that name each technology, against the median of all E Source postings with stated pay: $141k across 14 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 11 | $145k | +3% |
| SQL | 6 | $173k | +22% |
| AWS | 6 | $145k | +3% |
| Databricks | 6 | $145k | +3% |
| Spark | 5 | $145k | +3% |
How is the E Source 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 E Source stack?
E Source scores 78 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.
Companies with a stack like E Source
Questions about the E Source tech stack
What programming languages does E Source use?
The languages named in E Source job postings are Python (79%), SQL (43%), Java (14%), JavaScript (14%), SPSS (7%), as a share of the 14 postings of the last 12 months.
Does E Source use React.js?
Yes. React.js is named in 2 of 14 job postings (14%) and required in 2 of them.
What cloud and platforms does E Source use?
The cloud and platforms named in E Source job postings are AWS (6), Databricks (6), Spark (5) (postings in brackets).
What skills do you need for a Data Science job at E Source?
Data Science postings at E Source most often require Databricks (4), Python (4), AWS (3), Git (3), out of 4 postings in the last 12 months.
Is the E Source tech stack changing?
Yes. GraphQL, React.js, Rest API, Streamlit first appeared in E Source job postings in the last six months.
How modern is the E Source tech stack?
E Source scores 78 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 E Source tech stack?
Alion reads every job posting E Source publishes and tags the technologies each one names. The figures on this page count the 14 postings of the last 12 months and were updated on Oct 3, 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, "E Source tech stack: 48 technologies from 14 job postings", as of Oct 3, 2026. https://alion.io/company/e-source/technologies