FACT tech stack
FACT builds mostly with Kotlin, C#, JavaScript, Python. Its stack also includes .NET, Figma, Ionic, MAUI. Kotlin is named in 2 of the 6 job postings FACT published in the last 12 months (33%). Counted by Alion from the job postings of FACT, updated Nov 6, 2026.
What programming languages does FACT use?
Kotlin is named in 33% of job postings at FACT, followed by C# (33%), JavaScript (33%), Python (17%).
What frameworks and libraries does FACT use?
Ionic is named in 33% of job postings at FACT, followed by MAUI (33%), React Native (33%), React.js (33%).
What cloud and platforms does FACT use?
.NET is named in 33% of job postings at FACT, followed by Figma (33%), Linux (17%), Power BI (17%).
What developer tools does FACT use?
Copilot is named in 33% of job postings at FACT, followed by Microsoft Excel (17%).
What AI and ML technologies does FACT use?
Claude is named in 33% of job postings at FACT.
Which engineering practices does FACT ask for?
AI Agents is named in 33% of job postings at FACT, followed by CI/CD (33%), LLM Guardrails (33%), BGP (17%).
Show all (10)
What does each FACT team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
3 postingsHow does your stack fit FACT?
How modern is the FACT stack?
FACT scores 76 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 common is the FACT stack in its industry?
Share of the 1,644 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like FACT
Questions about the FACT tech stack
What programming languages does FACT use?
The languages named in FACT job postings are Kotlin (33%), C# (33%), JavaScript (33%), Python (17%), SQL (17%), as a share of the 6 postings of the last 12 months.
Does FACT use Ionic?
Yes. Ionic is named in 2 of 6 job postings (33%) and required in 2 of them.
What cloud and platforms does FACT use?
The cloud and platforms named in FACT job postings are .NET (2), Figma (2), Linux (1) (postings in brackets).
What skills do you need for a Backend job at FACT?
Backend postings at FACT most often require .NET (2), Claude (2), Copilot (2), Figma (2), out of 3 postings in the last 12 months.
Is the FACT tech stack changing?
No new technology has appeared in FACT job postings in the last six months.
How modern is the FACT tech stack?
FACT scores 76 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 FACT tech stack?
Alion reads every job posting FACT publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Nov 6, 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, "FACT tech stack: 26 technologies from 6 job postings", as of Nov 6, 2026. https://alion.io/company/fact-8/technologies
