Hiring a .NET developer is one of the safer technology decisions a Canadian business can make, because .NET is the platform the country's banks, insurers, hospitals and governments already run on. The risk is not the technology. It is the gap between a developer who lists C# on a resume and one who has kept a .NET system running for years. This guide is how to tell them apart, and what each costs.
Why businesses choose .NET
Three reasons come up in every conversation I have with a business owner about their stack:
- It fits what you already have. Microsoft 365, Azure, SQL Server, Power Platform, Active Directory. A .NET system speaks to all of them natively, which is why so much business automation ends up here.
- It lasts. Microsoft supports each major version for years and publishes the roadmap. A system built today will still be maintainable in a decade, and the pool of developers who can maintain it is one of the largest in Canada.
- It is fast and modern. Current .NET runs on Windows, Linux and containers, is consistently near the top of web framework benchmarks, and has a first-class language in C#. Anyone telling you it is legacy is describing a version from fifteen years ago.
What a .NET developer actually builds
| You need | What it looks like in .NET |
|---|---|
| A web application | ASP.NET Core with Razor or Blazor, or an API behind a React or Vue front end |
| An internal tool | ASP.NET Core plus SQL Server or PostgreSQL, often with Microsoft login already wired in |
| An integration | APIs and background services moving data between your systems reliably, with retries and logging |
| Automation | Azure Functions or scheduled services, often alongside Power Automate for the simple parts |
| Reporting | Data pipelines feeding Power BI or a custom dashboard |
The difference between a .NET developer and a good one
Frameworks are learnable in months. What takes years is operating software: knowing how data gets lost, how deployments break, how a system behaves at three in the morning. When you interview, ask for that, not for a list:
- "Walk me through a system you built and ran for more than a year." Listen for what went wrong and what they changed.
- "How do you make sure data is never lost?" Transactions, idempotency, backups tested rather than assumed. The words matter less than the fact they have an answer.
- "How do you deploy?" A pipeline, environments, a rollback plan. "I copy the files" is a junior answer regardless of years.
- "How would you hand this to another developer?" Documentation, clean structure, accounts in the client's name.
- "What would you not build?" Senior developers say no to things. Juniors say yes to everything.
I have built and run .NET systems that handle real money, including a donation platform for a major Canadian hospital foundation, and the lesson that stuck is that the code is the easy part. The business logic, the edge cases, the reconciliation with finance, the audit trail: that is where a system earns or loses trust. Hire for that, and the C# takes care of itself.
What a .NET developer costs
Freelance: senior independent .NET developers in Toronto typically bill CAD 100 to 160 an hour, or quote fixed prices for defined systems; enterprise integration and Azure experience push toward the top. Full-time: a senior .NET developer salary in Toronto runs roughly CAD 120,000 to 160,000 plus twenty to thirty percent in benefits, payroll taxes and overhead, before recruiting costs. The comparison guide puts the two side by side over a year.
Freelance or full-time?
Hire full-time when you have years of continuous development ahead and want to build a team around it. Hire freelance when you have a system to build or a problem to solve and want it done by someone senior without a permanent salary and a three-month recruiting cycle. Many businesses do both in sequence: a freelancer builds the first version, proves the value, and documents it well enough that a later full-time hire can take it over cleanly.
Questions to settle before the work starts
- Where will it run: Azure, another cloud, or your own servers? Who pays for and owns those accounts?
- What existing systems must it connect to, and do they have usable APIs?
- Who owns the source code, and where does it live?
- What does support look like after launch, and what does it cost?
- What is the smallest version that would be genuinely useful? Build that first.
Related
.NET is the stack I have built my career on, from enterprise systems to small business tools. If you are weighing a .NET project or a .NET hire and want a straight answer on scope, cost or approach, tell me what you are trying to do.
Questions people ask
What is .NET used for in business?
Internal systems, web applications, APIs, integrations and anything that has to run reliably for years. It is the default platform across Canadian banks, insurers, healthcare and government, and it pairs naturally with Microsoft 365, Azure and SQL Server, which most businesses already own.
Is .NET still a good choice in 2026?
Yes. Modern .NET is open source, cross-platform, fast and actively developed, with a very large talent pool in Canada. It is a conservative choice in the best sense: the system you build today will still be maintainable in ten years.
How much does a freelance .NET developer cost?
Senior .NET freelancers in Toronto typically bill CAD 100 to 160 an hour, or quote fixed prices for defined systems. Enterprise experience, Azure and integration work push toward the upper end.
Should I hire a .NET developer full-time or freelance?
Full-time when you have years of continuous work and want to build a team. Freelance when you have a system to build or a problem to solve and want it done by someone senior without a permanent salary. Many businesses start freelance and hire once the system proves itself.
What should I ask a .NET developer in an interview?
Ask them to walk you through a system they built end to end, including what went wrong. Ask how they handle data that must not be lost, how they deploy, and how they would hand the code over. The answers tell you far more than a list of frameworks.