ASP.NET Core back ends
APIs behind web and mobile clients, as on the Digital Testing Platform.
Backend
C# development services on the .NET stack we ship
Our six published builds run on .NET, where C# is the main language. The case studies name the platform and leave the language unstated, so we say that before we claim more.
6Published builds on .NET
14Current C# version, shipped with .NET 10
.NET 10The only runtime that supports C# 14
0Case studies that name C# itself
What we build
What we would take on in C#
.NET MAUI field apps
Bluetooth LE, GPS and photos on a phone, with local storage that syncs later.
Upgrades to C# 14
Projects retargeted to .NET 10 so the new language features are available.
Project takeovers
Codebases left by another vendor, documented before anything changes.
Architecture
Where C# sits in a .NET build
A .NET build for field inspection
Clients
.NET MAUI field appTests, photos, Bluetooth
React web dashboardJobs and Test Map
Code
C#Language, not named in the case
ASP.NET CoreRules, sync, certificates
Data
Azure SQLJobs and results
Azure Blob StoragePhotos and PDFs
From the Digital Testing Platform. The case names ASP.NET Core and .NET MAUI. The C# node is dashed because the case does not name the language.
Language
What C# 14 adds
Headline features in C# 14
Extension membersExtension properties and static members, in addition to extension methods.
The field keywordA property accessor body without a declared backing field.
Null-conditional assignmentcustomer?.Order = value assigns only when customer exists.
Implicit span conversionsFirst-class Span and ReadOnlySpan support in the language.
Lambda parameter modifiersref, in and out on lambda parameters without writing the type.
More partial membersPartial constructors and partial events.
Source: Microsoft Learn, What is new in C# 14, checked 4 November 2026. C# 14 is supported on .NET 10.
Builds
The closest builds we can show you
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.
70%Faster reporting cycle
Education, Norway
National education analytics platform
A failing enterprise rebuild finished on .NET and Angular with years of 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, live in one month for 30,000+ users.
30,000+Concurrent users the platform had to support
Fit check
When C# is the right call
Pick C# when
- Your back end runs on .NET or Azure
- You want a typed language across API and mobile app
- You must move to .NET 10 and its language features
Look elsewhere when
- You need a case study that names C#, which we do not have
- The work is data science, where Python fits better
- Your team runs Node.js and has no reason to change
Explore
Same job, other tools
Where we used it
Stack
What C# usually ships with
.NET
AzureReact
Xamarin
Angular
DockerFAQs
What buyers ask first
Which C# version is current?
C# 14, which ships with .NET 10 and is supported only on .NET 10. The .NET 10 SDK and Visual Studio 2026 both include it.
Do your case studies say they use C#?
No. They name .NET, ASP.NET Core and .NET MAUI. C# is the main language of that platform, and we say what we can show on the first call.
What is new in C# 14?
Extension members, the field keyword, null-conditional assignment, implicit span conversions, lambda parameter modifiers, and partial constructors and events.
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 code, your .NET version and your language needs. No sales pitch.