ASP.NET Core APIs
Back ends on Azure SQL and Blob Storage that serve web and mobile clients.
Backend
.NET development services for systems that stay in service
ASP.NET Core back ends, .NET MAUI field apps and the cloud layer beneath them. We have shipped .NET in six published builds for clients in the UK, Norway, Germany and Hong Kong.
6Published builds on .NET
10 Nov 2026.NET 8 and .NET 9 end of support
14 Nov 2028.NET 10 LTS end of support
30,000+Concurrent users on our crypto platform build
What we build
What we build with .NET
.NET MAUI field apps
Bluetooth LE readings, GPS, photos and local storage that syncs later.
Xamarin to .NET moves
Existing apps carried to .NET MAUI after Microsoft ended Xamarin support.
Legacy data migration
Years of records moved to a new system with no data loss.
Architecture
Where .NET sits in a build
A .NET build for field inspection
Clients
React web dashboardJobs, clients, Test Map
.NET MAUI field appTests, photos, Bluetooth
API
ASP.NET CoreRules, sync, certificates
Data
Azure SQLJobs and results
Azure Blob StoragePhotos and PDFs
Output
PDF certificatesGenerated on completion
Power BIOperational dashboards
From the Digital Testing Platform for work-at-height anchor and torque checks.
Versions
Which .NET release is supported
Two of the three releases end support on 10 November 2026. Pick .NET 10 for new work.
Support windows, 2023 to 2029
Long-term supportStandard-term support
Source: Microsoft .NET support policy, checked 29 October 2026. LTS releases get three years of support, STS releases two.
Builds
Three of the six builds
Statutory inspection, United Kingdom
Work-at-height anchor and torque platform
ASP.NET Core and Azure SQL behind a React dashboard and a .NET MAUI field app that reads pull testers over Bluetooth LE.
70%Faster reporting cycle
Education, Norway
National education analytics platform
A rebuild that a previous vendor failed to deliver, finished on .NET and Angular with years of legacy data migrated.
No lossData moved from OPAL 1.0 to OPAL 2.0
Fintech, Hong Kong
Cryptocurrency marketing platform
.NET microservices with an Angular front end and AWS Kinesis, with the first phase live in one month.
30,000+Concurrent users the platform had to support
Fit check
When .NET is the right call
Pick .NET when
- You run on Azure, Microsoft 365 or SQL Server and want one vendor chain
- One back end must serve a web app and a mobile app
- You are on .NET 8 or 9 and need to retarget before 10 November 2026
Look elsewhere when
- A short-lived prototype where a no-code tool will do
- A healthy Node.js or Python back end already serves you and nothing forces a change
- The work is mostly machine learning, where Python has the libraries
Related: Angular, Azure, Xamarin and .NET MAUI, and the construction and education sectors.
Stack
What .NET usually ships with
AngularReact
Azure
AWS
Xamarin
DockerFAQs
What buyers ask first
Which .NET version should a new project target?
.NET 10. It is a long-term support release with end of support on 14 November 2028. .NET 8 and .NET 9 both end support on 10 November 2026.
Can you take over a .NET project another vendor left?
Yes. On Hydrajaws we documented an application that had no documentation and rebuilt its environments so the client owned it again. On the Norwegian education platform we finished a rebuild that a previous vendor failed to deliver.
Do you build .NET MAUI apps?
Yes. The field app on our Digital Testing Platform is .NET MAUI, with Bluetooth LE readings, GPS and photo capture. We also move Xamarin apps to .NET MAUI.
Who owns the code and the cloud accounts?
You do, from the first commit. Repositories and cloud accounts stay in your name.
Tell us what runs on .NET today
Thirty minutes on your current system and the version you target. No sales pitch.