.NET Development

.NET Development Services for APIs, SaaS and Enterprise Applications

Senior .NET engineers who design, build and modernize production systems on C#, ASP.NET Core and the cloud — as a contract developer, a dedicated team, or a defined project.

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  • C#
  • .NET 8
  • .NET 9
  • .NET 10
  • ASP.NET Core
  • EF Core
  • Azure
  • SQL Server
Laptop showing source code in an editor on a bright desk

What our .NET development services cover

We work across the full lifecycle of a .NET system: architecture, implementation, testing, deployment and long-term maintenance.

  • ASP.NET Core development

    Web applications and back-ends on ASP.NET Core, using MVC, Razor Pages or API-first designs with a separate front end.

  • .NET API development

    REST APIs with ASP.NET Core Web API and Minimal APIs — versioned, documented with OpenAPI, secured and tested.

  • .NET SaaS development

    Multi-tenant SaaS back-ends: tenant isolation, subscription billing with Stripe, role-based access and background processing.

  • Enterprise .NET development

    Line-of-business systems, integrations with ERP and third-party platforms, reporting and workflow applications.

  • Azure .NET development

    App Service, Functions, Azure SQL, Service Bus, Key Vault and Azure OpenAI — deployed through CI/CD.

  • Legacy .NET modernization

    Incremental migration from .NET Framework, WebForms and WCF to modern .NET without a risky big-bang rewrite.

  • .NET architecture

    Clean architecture, modular monoliths and microservices — chosen for your team size and scale, not fashion.

  • Data access & performance

    Entity Framework Core and Dapper on SQL Server and PostgreSQL, query tuning, caching and profiling.

  • Senior .NET developer support

    An experienced developer who can review code, unblock your team and take ownership of difficult parts of the system.

The modern .NET stack we use

Our engineers work day-to-day in C# on current .NET releases. We favor well-understood, maintainable patterns that your own team can own after we have built them.

How we approach .NET projects

  • Readable, conventional C# that follows your team's standards
  • Automated tests around business logic and API contracts
  • OpenAPI documentation for every public endpoint
  • Structured logging and health checks from day one
  • Infrastructure and pipelines kept in source control
  • Pull-request based workflow with code review

Language & runtime

  • C#
  • .NET 8
  • .NET 9
  • .NET 10

Frameworks

  • ASP.NET Core
  • ASP.NET Core Web API
  • Minimal APIs
  • MVC
  • Razor Pages

Data

  • Entity Framework Core
  • Dapper
  • SQL Server
  • PostgreSQL
  • MongoDB

Architecture

  • REST APIs
  • Microservices
  • Modular monolith
  • Clean architecture

Cloud & DevOps

  • Azure
  • AWS
  • Docker
  • CI/CD

Front end

  • React
  • Next.js
  • TypeScript

A typical ASP.NET Core SaaS architecture

Most products we work on share a similar shape: web and mobile clients talking to an ASP.NET Core API, a relational database, background workers for slow jobs, and managed cloud services around them.

We keep this deliberately simple at the start and split services out only when there is a real reason — independent scaling, separate teams, or different release cycles.

More on software architecture →

Clients (React web app, Flutter mobile app) call an ASP.NET Core API, which uses SQL Server or PostgreSQL, background workers and cloud services Web appReact · Next.js Mobile appFlutter ASP.NET Core APIauth · tenants · business logic · OpenAPI DatabaseSQL Server · PostgreSQL Workersqueues · scheduled jobs Cloud servicesstorage · email · AI
Illustrative reference architecture. Each project is designed around its own requirements.

Ways to engage our .NET developers

ModelBest forHow it works
.NET contract developerShort-term capacity, a specific feature or a skills gapHourly or monthly contract, part-time or full-time, for a defined period
Dedicated .NET developerOngoing product developmentA full-time engineer embedded in your team and processes
Dedicated .NET development teamLarger roadmaps or a new product lineSeveral engineers with a technical lead, working on your backlog
Project developmentA defined product or systemScoped delivery from architecture to release, with milestones
.NET architecture consultingDesign decisions, reviews and modernization plansFractional senior architect time, scoped per engagement

From the blog

Guides on .NET Development

Frequently asked questions

Which .NET versions do you work with?

We build new work on current long-term-support and standard-term releases — .NET 8, .NET 9 and .NET 10 — and maintain or migrate older .NET Framework applications. We recommend a target version based on your support timeline and hosting.

Can you work on our existing .NET codebase?

Yes. Much of our .NET work is extending or improving existing systems. We start by reading the code, running it locally and agreeing conventions with your team before making changes.

Do you provide .NET developers on contract?

Yes. You can hire a .NET contract developer for a fixed period or by the hour, or a dedicated .NET developer who works full-time with your team.

Do you work with Azure or AWS?

Both. We deploy .NET applications to Azure App Service, Azure Functions and containers, and to AWS using containers and managed services. We use Docker and CI/CD pipelines for repeatable releases.

Can you build the front end too?

Yes. Alongside ASP.NET Core back-ends we build front ends in React, Next.js and TypeScript, as well as server-rendered MVC and Razor Pages where that is the better fit.

Talk to a senior .NET engineer

Tell us what you are building, the stack you use and the capacity you need. We reply within one business day.

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