Flexi tech stack
Flexi builds mostly with C#, C++, JavaScript, TypeScript. Its stack also includes MS SQL, React.js, Windows, AWS. C# is named in 3 of the 4 job postings Flexi published in the last 12 months (75%). Counted by Alion from the job postings of Flexi, updated Oct 29, 2026.
What programming languages does Flexi use?
C# is named in 75% of job postings at Flexi, followed by C++ (75%), JavaScript (75%), TypeScript (75%).
C# 
What frameworks and libraries does Flexi use?
React.js is named in 75% of job postings at Flexi, followed by Next.js (50%), ASP.NET Core (25%), Cypress (25%).
React.js
3 75%
Next.js
2 50%
ASP.NET Core
1 25%
Cypress
1 25%
Entity Framework Core
1 25%
Jest
1 25%
Playwright
1 25%
What cloud and platforms does Flexi use?
Windows is named in 50% of job postings at Flexi, followed by AWS (50%), Azure (50%), Figma (25%).
What developer tools does Flexi use?
Git is named in 50% of job postings at Flexi, followed by Rest API (50%), Vite (50%), Claude Code (25%).
Git
2 50%
Rest API
2 50%
Vite
2 50%
Claude Code
1 25%
Cursor
1 25%
Terraform
1 25%
xUnit
1 25%
Which engineering practices does Flexi ask for?
CI/CD is named in 75% of job postings at Flexi, followed by AI Agents (75%), Agentic Workflows (75%), Context Engineering (25%).
CI/CD
3 75%
AI Agents
3 75%
Platform Engineering
1 25%
How does your stack fit Flexi?
How modern is the Flexi stack?
Flexi scores 79 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: 0; legacy ones: 0.
How common is the Flexi stack in its industry?
Share of the 2,196 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Flexi
Questions about the Flexi tech stack
What programming languages does Flexi use?
The languages named in Flexi job postings are C# (75%), C++ (75%), JavaScript (75%), TypeScript (75%), Node JS (50%), as a share of the 4 postings of the last 12 months.
Does Flexi use React.js?
Yes. React.js is named in 3 of 4 job postings (75%) and required in 3 of them.
What cloud and platforms does Flexi use?
The cloud and platforms named in Flexi job postings are Windows (2), AWS (2), Azure (2) (postings in brackets).
Is the Flexi tech stack changing?
No new technology has appeared in Flexi job postings in the last six months.
How modern is the Flexi tech stack?
Flexi scores 79 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: 0; legacy ones: 0.
How does Alion know the Flexi tech stack?
Alion reads every job posting Flexi publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 29, 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, "Flexi tech stack: 34 technologies from 4 job postings", as of Oct 29, 2026. https://alion.io/company/flexi-com/technologies