EOS tech stack
EOS builds mostly with SQL, C#, JavaScript, TypeScript. Its stack also includes Azure DevOps, Azure, ElasticSearch, MS SQL. SQL is named in 6 of the 7 job postings EOS published in the last 12 months (86%). Counted by Alion from the job postings of EOS, updated Oct 16, 2026.
What programming languages does EOS use?
SQL is named in 86% of job postings at EOS, followed by C# (71%), JavaScript (14%), TypeScript (14%).
C# 
What frameworks and libraries does EOS use?
ASP.NET Core is named in 14% of job postings at EOS, followed by Entity Framework Core (14%), Playwright (14%), React.js (14%).
ASP.NET Core
1 14%
Entity Framework Core
1 14%
Playwright
1 14%
React.js
1 14%
Redux
1 14%
SDL
1 14%
WPF
1 14%
What databases does EOS use?
ElasticSearch is named in 14% of job postings at EOS, followed by MS SQL (14%), PostgreSQL (14%).
What cloud and platforms does EOS use?
Azure DevOps is named in 57% of job postings at EOS, followed by Azure (57%), .NET (43%), ALT Linux (29%).
Azure DevOps
4 57%
Azure
4 57%
.NET
3 43%
Postman
2 29%
Apache Kafka
1 14%
Show all (9)
What developer tools does EOS use?
Git is named in 57% of job postings at EOS, followed by GraphQL (57%), Swagger (29%), Babel (14%).
Which engineering practices does EOS ask for?
CI/CD is named in 14% of job postings at EOS.
CI/CD
1 14%
How does your stack fit EOS?
How modern is the EOS stack?
EOS scores 69 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the EOS stack in its industry?
Share of the 393 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like EOS
Questions about the EOS tech stack
What programming languages does EOS use?
The languages named in EOS job postings are SQL (86%), C# (71%), JavaScript (14%), TypeScript (14%), C (14%), as a share of the 7 postings of the last 12 months.
Does EOS use Azure DevOps?
Yes. Azure DevOps is named in 4 of 7 job postings (57%) and required in 4 of them.
What cloud and platforms does EOS use?
The cloud and platforms named in EOS job postings are Azure DevOps (4), Azure (4), .NET (3) (postings in brackets).
Is the EOS tech stack changing?
No new technology has appeared in EOS job postings in the last six months.
How modern is the EOS tech stack?
EOS scores 69 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the EOS tech stack?
Alion reads every job posting EOS publishes and tags the technologies each one names. The figures on this page count the 7 postings of the last 12 months and were updated on Oct 16, 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, "EOS tech stack: 31 technologies from 7 job postings", as of Oct 16, 2026. https://alion.io/company/eos-6/technologies