Epsilon tech stack
Epsilon builds mostly with Python, SQL, JavaScript, TypeScript. Its stack also includes AWS, Databricks, Angular, Delta Lake. Python is named in 21 of the 21 job postings Epsilon published in the last 12 months (100%). Counted by Alion from the job postings of Epsilon, updated Nov 11, 2026.
What programming languages does Epsilon use?
Python is named in 100% of job postings at Epsilon, followed by SQL (76%), JavaScript (57%), TypeScript (48%).
Python
21 100%
SQL
16 76%
JavaScript
12 57%
TypeScript
10 48%
Java
7 33%
Scala
5 24%
Node JS
2 10%
C#
1 5%
Show all (12)
What frameworks and libraries does Epsilon use?
Angular is named in 38% of job postings at Epsilon, followed by Hadoop (33%), React.js (33%), Hibernate (29%).
Angular
8 38%
Hadoop
7 33%
React.js
7 33%
Hibernate
6 29%
FastAPI
4 19%
Celery
3 14%
Django
3 14%
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What databases does Epsilon use?
Delta Lake is named in 33% of job postings at Epsilon, followed by PostgreSQL (29%), Redis (19%), ElasticSearch (14%).
Delta Lake
7 33%
PostgreSQL
6 29%
Redis
4 19%
ElasticSearch
3 14%
OpenSearch
3 14%
Neo4j
3 14%
Trino
3 14%
Amazon DocumentDB
2 10%
Show all (16)
What cloud and platforms does Epsilon use?
AWS is named in 90% of job postings at Epsilon, followed by Databricks (71%), Spark (52%), GCP (52%).
AWS
19 90%
Databricks
15 71%
Spark
11 52%
GCP
11 52%
Grafana
10 48%
Azure
10 48%
Kubernetes
9 43%
AWS Bedrock
6 29%
Show all (47)
And 7 more, each named in fewer postings.
What developer tools does Epsilon use?
Docker is named in 52% of job postings at Epsilon, followed by Rest API (38%), Terraform (33%), Git (29%).
Docker
11 52%
Rest API
8 38%
Terraform
7 33%
Git
6 29%
Model Context Protocol
5 24%
Jenkins
5 24%
pySpark
4 19%
Maven
4 19%
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What AI and ML technologies does Epsilon use?
LLM is named in 29% of job postings at Epsilon, followed by Gemini (5%), LoRA (5%), PEFT (5%).
Which engineering practices does Epsilon ask for?
CI/CD is named in 62% of job postings at Epsilon, followed by AI Agents (33%), RAG (29%), Machine Learning (19%).
CI/CD
13 62%
AI Agents
7 33%
RAG
6 29%
Platform Engineering
3 14%
Declarative UI
3 14%
Show all (29)
What does each Epsilon team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
11 postingsData Science
5 postingsHow does your stack fit Epsilon?
How is the Epsilon 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 Epsilon stack?
Epsilon scores 83 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: 5; legacy ones: 0.
How common is the Epsilon stack in its industry?
Share of the 286 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Epsilon apart
Companies with a stack like Epsilon
Questions about the Epsilon tech stack
What programming languages does Epsilon use?
The languages named in Epsilon job postings are Python (100%), SQL (76%), JavaScript (57%), TypeScript (48%), Java (33%), as a share of the 21 postings of the last 12 months.
Does Epsilon use Angular?
Yes. Angular is named in 8 of 21 job postings (38%) and required in 5 of them.
What cloud and platforms does Epsilon use?
The cloud and platforms named in Epsilon job postings are AWS (19), Databricks (15), Spark (11) (postings in brackets).
What skills do you need for a Backend job at Epsilon?
Backend postings at Epsilon most often require AWS (9), Python (8), Rest API (8), JavaScript (6), out of 11 postings in the last 12 months.
Is the Epsilon tech stack changing?
Yes. ElasticSearch, Logstash, Power BI, Tableau first appeared in Epsilon job postings in the last six months.
How modern is the Epsilon tech stack?
Epsilon scores 83 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: 5; legacy ones: 0.
How does Alion know the Epsilon tech stack?
Alion reads every job posting Epsilon publishes and tags the technologies each one names. The figures on this page count the 21 postings of the last 12 months and were updated on Nov 11, 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, "Epsilon tech stack: 171 technologies from 21 job postings", as of Nov 11, 2026. https://alion.io/company/epsilon/technologies