Devvista is a software development and growth agency that places and manages dedicated .NET developers and C# engineers for businesses in the US, UK, Australia, Canada and the UAE. Choose hourly hours, a small team, or a fixed price.
Microsoft describes .NET as an open-source application platform that it supports. Below: what our .NET engineers build, how .NET compares with Node.js and Python, the cost, how to check a candidate and how hiring works from your country.
What our .NET developers build
Line-of-business systems
Applications for finance, operations and logistics that sit inside a Microsoft-based company, with Active Directory sign-in and reporting on the data you already hold.
APIs and services
Back ends that web and mobile apps call, built for clear contracts, versioning and monitoring.
Modernising older .NET systems
Moving an application from an old .NET Framework codebase to current .NET in planned steps, with tests around the parts the business cannot lose.
Cloud-hosted applications
Systems deployed to a cloud platform with pipelines and monitoring. Our hire Azure developers page covers the platform side.
Reporting and dashboards
Management reports built on SQL Server or another database, with the figures reconciled to your accounting system so a number on a dashboard can be traced back to its source records.
Integrations with Microsoft tools
Connections to Microsoft 365, SharePoint and SQL Server, so data stops being retyped between systems.
.NET, Node.js or Python: which backend suits your company?
The decision often follows the company, not the language. The table sets out the common cases, with our view in the last row.
| Situation | .NET | Node.js | Python |
|---|---|---|---|
| A Microsoft-centred company | A natural fit with existing sign-in, hosting and skills | Works, with less overlap | Works, with less overlap |
| An existing .NET system to extend | The obvious choice | A rewrite | A rewrite |
| A JavaScript front-end team wanting one language | Needs another language | A strong fit | Needs another language |
| Data and AI beside the app | Possible | Possible | A strong fit |
See our hire Node.js developers and hire Python developers pages for the other routes, and our comparison of dedicated teams with project-based work for the models.
What it costs and how you can hire
For .NET developers, pricing is either fixed, from $500 to $100,000 by complexity, or hourly at $10 to $100 by developer type and level. Quotes are in US dollars.
| Model | Best for | Pricing |
|---|---|---|
| Dedicated .NET developer by the hour | Maintaining and extending a .NET system through the year | By developer level |
| Small .NET team | A system build needing .NET, front-end and testing skills together | Hourly, per person |
| Fixed-price build | A system or API with a written module and rule list | By complexity |
| Scoping first | You have an old .NET system and need an assessment before choosing a path | A short engagement that ends in a written spec |
Illustration (an estimate, not a quote): a .NET line-of-business system with roles, approval workflows, reports and an accounting integration, at an assumed $40 an hour:
| Work | Hours |
|---|---|
| Discovery and written spec | 22 |
| Data model and sign-in | 30 |
| Core screens and workflows | 64 |
| Approval rules | 32 |
| Reports and exports | 30 |
| Accounting integration | 36 |
| Automated tests | 34 |
| Deployment and handover | 14 |
| Total | 262 hours, about $10,480 at $40 an hour |
A smaller system falls well below that, and one with several integrations rises above it. Bring your modules and we will price your own.
Which .NET developer profile you need
.NET work splits between building new systems and moving old ones, and the two take different habits.
| Profile | What they do | Ask to see |
|---|---|---|
| .NET developer | Builds features, services and screens in C# | A system they built and its tests |
| .NET architect | Designs the structure of a larger system and its integrations | A design document and how it evolved |
| Modernisation engineer | Moves old .NET Framework code to current .NET | A migration they completed |
| .NET and cloud engineer | Builds and deploys to a cloud platform with pipelines | A pipeline and its monitoring |
Common situations and what to hire
.NET jobs usually come from an existing environment.
| Your situation | What to hire | Why |
|---|---|---|
| A company running on Microsoft tools that needs a custom system | A .NET developer or small team on a fixed-price build | Sign-in, hosting and reporting fit what you already run |
| An old .NET Framework application | A modernisation engineer, then maintenance hours | Tests first, then staged moves to current .NET |
| A new API for a mobile or web product | A .NET API developer | Contracts and versioning are agreed before the screens are built |
What the first month of a .NET hire looks like
- Week one: access to the code, servers and data, plus a written list of modules and rules.
- Week two: the solution structure and the first module running with tests.
- Week three: integrations, sign-in and permissions, each with failure handling.
- Week four: a review against the spec, a performance check on real data, and the deployment plan.
How to check any .NET developer before you hire
A short interview can tell you more than a portfolio. These questions are a good place to start.
- How do you keep secrets such as connection strings out of the repository and out of logs?
- Which .NET version will the system use, and how will it stay supported?
- How do you structure a solution so several developers can work in it?
- How do you test business rules, and what do the tests cover?
- How would you move this old .NET Framework application to current .NET?
- How do you handle sign-in and permissions for staff?
- Who owns the repository, the pipeline and the hosting at handover?
- Ask for a small paid trial task before you commit: one business rule implemented as a tested service, with a note on how it handles bad input.
Treat a fixed delivery date offered before any written scope as a warning sign, whoever offers it.
Mistakes to avoid when hiring .NET developers
.NET projects slip for a few repeatable reasons.
- Staying on an old framework because it still runs, until support ends.
- Spreading business rules through screens and stored procedures.
- Skipping tests around the core calculation, then fearing every release.
- Choosing hosting before agreeing who will operate it.
- Letting a stored procedure grow into the only place a pricing rule lives.
- Moving to current .NET in one release instead of module by module.
- Leaving connection strings and secrets inside the repository.
Hiring from the US, UK, Australia, Canada and the UAE
This page serves buyers of .NET developers in the US, UK, Australia, Canada and the UAE. Time zones and review dates are agreed up front, and work runs from written specs and video calls.
Who this is for, and who it is not
| A good fit | Not a fit |
|---|---|
| A company running on Microsoft tools that needs a custom system, API or modernisation | A small brochure site with no custom logic |
| A team adding a .NET developer or a modernisation engineer | A request to rewrite a working system with no stated reason |
| Owners who approve a written module list and staged releases | A project needing developers on site |