Argentina 
Brazil 
Mexico 
Colombia 
A .NET developer job description has to answer a question most recruiters don’t see coming: which .NET? The title covers engineers who maintain Windows-only .NET Framework apps. It also covers engineers who ship cloud services on .NET 10.
Candidates from each group read the same post in different ways. This matters more than usual right now. Microsoft ends support for both .NET 8 and .NET 9 on November 10, 2026, so many teams are hiring to migrate.
Below is an annotated .NET developer job description template. Each section comes with a recruiter note that explains why the line is there and what to confirm with the hiring manager. You’ll also find an intake checklist and a resume screen built for non-engineers.
What Is a .NET Developer, and Why Does the Title Confuse Candidates?
A .NET developer builds applications on Microsoft’s .NET platform, most often in the C# language. Most US roles focus on web APIs and business systems built with ASP.NET Core, often hosted on Azure.
The confusion comes from two product lines with similar names. .NET Framework is the older, Windows-only platform, and its last version is 4.8.1. Modern .NET, once called .NET Core, runs on any operating system and ships a new version every November.
A C# developer with five years in .NET Framework may need ramp-up time on modern .NET. The reverse is also true for legacy work. Your .NET developer job description should say which one dominates the role.
ASP.NET Core is a mainstream web framework. In the Stack Overflow 2025 Developer Survey, 19.7% of respondents reported extensive work with it.
How the November 2026 Support Deadline Changes the .NET Role
Microsoft has confirmed that .NET 8 and .NET 9 reach end of support on November 10, 2026. .NET 10, released in November 2025, is the current long-term support version, supported through November 2028.
After that date, apps keep running, but they stop receiving security patches. For a hiring team, “upgrade to .NET 10” turns from a backlog item into a deadline.
Ask the hiring manager whether this hire owns the migration. If yes, the migration becomes one of the core .NET developer responsibilities, and migration experience becomes a must-have. Say so in the post, and name the versions involved.
The Annotated .NET Developer Job Description Template
1. Job Title
[Senior] .NET Developer (C#, ASP.NET Core)
Recruiter note: put C# and ASP.NET Core in the title. Candidates search those terms, and a C# developer with web experience recognizes the role at once. The title also filters out desktop-only or Framework-only profiles before they apply.
2. About the Role
We’re hiring a .NET developer to [build and maintain our customer-facing APIs / migrate our services from .NET 8 to .NET 10 / modernize a .NET Framework 4.8 application]. You’ll join [number] engineers building software for [industry or customer].
Recruiter note: this sentence carries the most weight in the post. Ask the hiring manager to pick one main mission. If they list three, the role isn’t defined yet.
3. Responsibilities
- Build and maintain REST APIs with ASP.NET Core and C#.
- Model data and write queries with Entity Framework Core and [SQL Server / PostgreSQL].
- Write unit and integration tests with [xUnit / NUnit].
- Deploy and monitor services on [Azure App Service / AKS / AWS].
- [Migration] Upgrade projects from [.NET 8 / .NET Framework] to .NET 10 and replace deprecated packages.
- Review code and document design decisions.
Recruiter note: keep five to seven .NET developer responsibilities. Each one should match work the person will do in the first six months. Ask the manager to cross out anything that happens once a year.
4. Requirements
- [4+] years of professional C# development.
- Production experience with ASP.NET Core on .NET 6 or later.
- Solid SQL and Entity Framework Core.
- Experience with Git, pull requests, and CI/CD pipelines such as [Azure DevOps / GitHub Actions].
- Professional English for meetings and written specs.
Recruiter note: “.NET 6 or later” is the filter that matters. It confirms current .NET developer skills without excluding strong candidates who haven’t touched .NET 10 yet.
5. Nice to Have
- Microsoft certifications such as Azure Developer Associate (AZ-204).
- Blazor, or a JavaScript framework such as [Angular / React].
- Messaging with Azure Service Bus or RabbitMQ.
- A completed migration from .NET Framework to modern .NET.
Recruiter note: certifications are useful signals, not proof of skill. Keep them in this section and out of the requirements.
6. How We Work and Compensation
[Remote or hybrid], [overlap hours with your time zone], [team rituals]. Compensation: [salary range or rate], [benefits].
Recruiter note: include the pay range. Several US states require it, and engineers use it to decide whether to apply at all.
Five Questions to Ask the Hiring Manager Before You Publish
Run this intake in 20 minutes. The answers fill most of the brackets in the template above.
- Which .NET versions run in production today? List every app, including any still on .NET Framework.
- Does this person own the .NET 10 migration? If yes, add it to the .NET developer responsibilities and ask for the target date.
- Is the role backend only, or also front end? Blazor, Angular, or React work changes the profile.
- Where does the code run? Azure, AWS, and on-premises Windows servers call for different .NET developer skills.
- What would make this hire successful in 90 days? Turn the answer into the “About the role” sentence.
Write the answers down and send them back for approval. A signed-off intake prevents the “that’s not what I meant” conversation after the first shortlist.
The same intake gives you a baseline for later. Once the hire starts, you can check the 90-day answer against reality and measure quality of hire for engineering roles.
How to Screen .NET Developer Resumes Without a Technical Background
You don’t need to read C# to screen well. Look for these .NET developer skills and signals in each resume.
Green Flags
- Projects that match the .NET developer responsibilities in your post.
- Version numbers next to projects, such as “.NET 8” or “.NET Framework 4.7”.
- Named outcomes, such as “cut API response time by 40%” or “migrated 12 services”.
- ASP.NET Core, Entity Framework Core, and a cloud provider in the same project.
- Test frameworks such as xUnit or NUnit.
Yellow Flags
- Only “ASP.NET” or “Web Forms”, with no modern .NET in the last three years.
- Long lists of technologies with no project context.
- Desktop-only experience (WinForms, WPF) for a web API role.
Yellow flags aren’t automatic rejections. They’re questions for the phone screen. Ask the C# developer which .NET version they used last and what they built with it.
For the technical stage, hand off to an engineer or a structured assessment. Skills-based hiring in tech gives you a clearer signal than degree filters or keyword matches.
Many teams don’t have a senior C# interviewer with spare time. In that case, compare your process with how a pre-vetted tech talent model handles technical screening before candidates reach you.
Getting Your .NET Developer Job Description Ready to Publish
A strong .NET developer job description names the platform version, the main mission, and the cloud. With the intake answers and the annotated template, you can publish a post engineers trust and hiring managers sign off on.
Need a .NET developer before the November 2026 support deadline? BEON.tech places senior C# and ASP.NET Core engineers from Latin America, vetted and working in US hours.
