Epsilon tech stack
Epsilon builds mostly with Python, JavaScript, SQL, TypeScript. Its stack also includes AWS, Databricks, Angular, Hibernate. Python is named in 11 of the 11 job postings Epsilon published in the last 12 months (100%). Counted by Alion from the job postings of Epsilon, updated Sep 27, 2026.
What programming languages does Epsilon use?
Python is named in 100% of job postings at Epsilon, followed by JavaScript (73%), SQL (64%), TypeScript (55%).
Python
11 100%
JavaScript
8 73%
SQL
7 64%
TypeScript
6 55%
Java
5 45%
Node JS
2 18%
C#
1 9%
Kotlin
1 9%
Show all (12)
What frameworks and libraries does Epsilon use?
Angular is named in 45% of job postings at Epsilon, followed by Hibernate (36%), React.js (36%), FastAPI (27%).
Angular
5 45%
Hibernate
4 36%
React.js
4 36%
FastAPI
3 27%
Celery
2 18%
Django
2 18%
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What databases does Epsilon use?
PostgreSQL is named in 27% of job postings at Epsilon, followed by Redis (27%), DynamoDB (18%), OpenSearch (18%).
PostgreSQL
3 27%
Redis
3 27%
DynamoDB
2 18%
OpenSearch
2 18%
Delta Lake
2 18%
Neo4j
2 18%
Trino
2 18%
Amazon Aurora
1 9%
Show all (13)
What cloud and platforms does Epsilon use?
AWS is named in 82% of job postings at Epsilon, followed by Databricks (64%), Azure (55%), AWS Bedrock (36%).
AWS
9 82%
Databricks
7 64%
Azure
6 55%
AWS Bedrock
4 36%
Bitbucket
4 36%
Grafana
4 36%
Spark
4 36%
GCP
4 36%
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And 2 more, each named in fewer postings.
What developer tools does Epsilon use?
Rest API is named in 45% of job postings at Epsilon, followed by Terraform (45%), Docker (36%), Ansible (27%).
Rest API
5 45%
Terraform
5 45%
Docker
4 36%
Ansible
3 27%
Git
3 27%
Jenkins
3 27%
Model Context Protocol
3 27%
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What AI and ML technologies does Epsilon use?
LLM is named in 27% of job postings at Epsilon, followed by Gemini (9%), LoRA (9%), PEFT (9%).
Which engineering practices does Epsilon ask for?
CI/CD is named in 73% of job postings at Epsilon, followed by AI Agents (45%), RAG (45%), LLM Guardrails (27%).
CI/CD
8 73%
AI Agents
5 45%
RAG
5 45%
Declarative UI
2 18%
Anomaly Detection
1 9%
Show all (28)
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
7 postingsHow does your stack fit Epsilon?
How modern is the Epsilon stack?
Epsilon 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: 5; legacy ones: 0.
How common is the Epsilon stack in its industry?
Share of the 978 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%), JavaScript (73%), SQL (64%), TypeScript (55%), Java (45%), as a share of the 11 postings of the last 12 months.
Does Epsilon use Angular?
Yes. Angular is named in 5 of 11 job postings (45%) and required in 4 of them.
What cloud and platforms does Epsilon use?
The cloud and platforms named in Epsilon job postings are AWS (9), Databricks (7), Azure (6) (postings in brackets).
What skills do you need for a Backend job at Epsilon?
Backend postings at Epsilon most often require AWS (7), JavaScript (5), Python (5), Rest API (5), out of 7 postings in the last 12 months.
Is the Epsilon tech stack changing?
No new technology has appeared in Epsilon job postings in the last six months.
How modern is the Epsilon tech stack?
Epsilon 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: 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 11 postings of the last 12 months and were updated on Sep 27, 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: 155 technologies from 11 job postings", as of Sep 27, 2026. https://alion.io/company/epsilon/technologies