FacilityOS tech stack
FacilityOS builds mostly with SQL, C#, Python. Its stack also includes .NET, Power BI, MS SQL, BigQuery. SQL is named in 5 of the 12 job postings FacilityOS published in the last 12 months (42%). Counted by Alion from the job postings of FacilityOS, updated Sep 30, 2026.
What programming languages does FacilityOS use?
SQL is named in 42% of job postings at FacilityOS, followed by C# (33%), Python (8%).
What frameworks and libraries does FacilityOS use?
ASP.NET Core is named in 8% of job postings at FacilityOS, followed by Playwright (8%), Selenium (8%).
What databases does FacilityOS use?
MS SQL is named in 25% of job postings at FacilityOS, followed by BigQuery (17%), Google BigQuery (17%), Snowflake (17%).
BigQuery 
What cloud and platforms does FacilityOS use?
.NET is named in 25% of job postings at FacilityOS, followed by Power BI (25%), Azure (17%), AWS (8%).
.NET
3 25%
Power BI
3 25%
Azure
2 17%
AWS
1 8%
Azure DevOps
1 8%
Databricks
1 8%
Datadog
1 8%
Figma
1 8%
Show all (12)
What developer tools does FacilityOS use?
dbt is named in 17% of job postings at FacilityOS, followed by Git (17%), Swagger (8%), Terraform (8%).
What AI and ML technologies does FacilityOS use?
Claude is named in 8% of job postings at FacilityOS, followed by LLM (8%).
Which engineering practices does FacilityOS ask for?
AI Agents is named in 25% of job postings at FacilityOS, followed by RAG (17%), Wi-Fi (17%), CI/CD (17%).
AI Agents
3 25%
RAG
2 17%
CI/CD
2 17%
Clean Architecture
1 8%
Embeddings
1 8%
FinOps
1 8%
Show all (12)
What does each FacilityOS 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 FacilityOS?
How is the FacilityOS 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 FacilityOS stack?
FacilityOS scores 81 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: 2; legacy ones: 0.
How common is the FacilityOS stack in its industry?
Share of the 897 companies in the same industries, whose stack Alion knows, that use each technology.
What sets FacilityOS apart
Companies with a stack like FacilityOS
Questions about the FacilityOS tech stack
What programming languages does FacilityOS use?
The languages named in FacilityOS job postings are SQL (42%), C# (33%), Python (8%), as a share of the 12 postings of the last 12 months.
Does FacilityOS use .NET?
Yes. .NET is named in 3 of 12 job postings (25%) and required in 3 of them.
What cloud and platforms does FacilityOS use?
The cloud and platforms named in FacilityOS job postings are .NET (3), Power BI (3), Azure (2) (postings in brackets).
What skills do you need for a Backend job at FacilityOS?
Backend postings at FacilityOS most often require .NET (3), C# (3), MS SQL (3), out of 3 postings in the last 12 months.
Is the FacilityOS tech stack changing?
Yes. Wi-Fi, Power BI first appeared in FacilityOS job postings in the last six months.
How modern is the FacilityOS tech stack?
FacilityOS scores 81 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: 2; legacy ones: 0.
How does Alion know the FacilityOS tech stack?
Alion reads every job posting FacilityOS publishes and tags the technologies each one names. The figures on this page count the 12 postings of the last 12 months and were updated on Sep 30, 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, "FacilityOS tech stack: 40 technologies from 12 job postings", as of Sep 30, 2026. https://alion.io/company/facilityos/technologies