About the role
A .NET Developer designs, builds, tests and maintains software applications on the Microsoft .NET platform, working from business and client requirements. The role keeps internal and customer-facing systems reliable, correct and able to change as needs evolve.
A CV lists technologies, but it does not show how well a candidate uses them. A single coding exercise tests one narrow moment and can miss troubleshooting ability, collaboration and how someone works with AI coding assistants.
This post covers what to look for when you hire a .NET developer, based on Bryq's validated role profile for .NET Developer. It sets out essential and nice-to-have skills, key competencies, the AI fluency level to hire for and how to assess each of them.
What are the essential .NET developer skills?
The essential .NET developer skills are C# programming, SQL Server querying, troubleshooting, web front-end technologies and Functional AI Fluency.
Skill | Why it matters | Level to test |
|---|---|---|
C# programming | The role centres on writing and maintaining C# and ASP.NET code. | Intermediate |
SQL Server and database querying | Developers query SQL Server as part of building and maintaining applications. | Intermediate |
Troubleshooting and debugging software defects | Finding and fixing defects in existing systems is a core requirement. | Intermediate |
Web front-end technologies (HTML, CSS, JavaScript) | Developers build web interfaces with these technologies. | Intermediate |
AI Fluency | AI coding assistants are part of everyday development work and their output must be checked. | Functional |
The role centres on writing and maintaining C# and ASP.NET code, querying SQL Server and building web interfaces with HTML, CSS and JavaScript. Finding and fixing defects in existing systems makes troubleshooting a core requirement.
Which nice-to-have skills help a .NET developer stand out?
Agile methodologies, Azure, CI/CD, analytical reasoning and secure coding add value but are not needed to do the job on day one.
Agile methodologies (Intermediate). Helps the developer work in step with team planning and delivery practices.
Cloud deployment on Azure (Intermediate). Adds the ability to deploy applications to the cloud.
CI/CD pipelines (Beginner). Supports automated build and release of code.
Analytical reasoning for requirements analysis (Intermediate). Strengthens how the developer interprets business and client requirements.
Secure coding and cybersecurity awareness (Intermediate). Reduces the risk of security flaws in the code the developer writes.
Use these skills as tie-breakers between candidates who are otherwise equally strong on the essentials. They should not replace the core requirements or screen out candidates who can learn them on the job.
Which competencies predict success as a .NET developer?
Problem Solving, Tech Savviness, Learning Agility, Collaboration and Communication are the essential competencies for a .NET Developer.
Problem Solving. Drives analysing requirements, building workflow diagrams, debugging and upgrading systems.
Tech Savviness. Supports requirements analysis, debugging and system upgrades alongside problem solving.
Learning Agility. Frameworks and tools change often, so developers must keep learning.
Collaboration. Developers agree best practices with team members.
Communication. Developers explain specifications to internal and external customers.
Grit, Workplace Ethic and Creative Thinking are optional competencies. They help with persistent debugging, dependable delivery and designing better solutions.
What AI skills does a .NET developer need?
AI Fluency is a High priority for this role, and you should hire for the Functional level.
Aware. Understands what AI can and cannot do and uses it safely.
Functional (target level). Uses AI tools in daily work, prompts well and verifies outputs.
Advanced. Designs AI-enabled workflows, automates and evaluates quality and risk.
Use case: drafting code. Using an AI coding assistant to draft C# methods, controllers or SQL queries, then reviewing and refactoring them against team conventions.
Use case: generating tests. Generating unit tests and test plan drafts from specifications and code to improve coverage faster.
Use case: understanding legacy code. Using AI to explain unfamiliar legacy code, suggest likely causes of defects and draft technical documentation.
AI coding assistants are now part of everyday development work, so developers need to prompt them well and check the output rigorously. Poorly reviewed AI-generated code can introduce defects and security flaws. The role focus is AI-assisted coding, testing and debugging. The three main use cases are:
How do you assess .NET developer candidates with Bryq?
Assess .NET developer candidates with Bryq by testing each essential skill at its target level and profiling the essential competencies.
C#. Bryq C# assessment at Intermediate level.
SQL. Bryq SQL assessment at Intermediate level.
Troubleshooting. Bryq Troubleshooting assessment at Intermediate level.
Javascript. Bryq Javascript assessment at Intermediate level for web front-end skills.
AI Fluency. Bryq AI Fluency assessment at Functional level.
Optional add-ons. Agile Methodologies (Intermediate), Microsoft Azure (Intermediate), CI/CD (Beginner), Analytical Skills (Intermediate) and Cybersecurity (Intermediate) to separate close candidates.
Competency profile. Problem Solving, Tech Savviness, Learning Agility, Collaboration and Communication, with Grit, Workplace Ethic and Creative Thinking as optional additions.
Frequently asked questions
What skills should a .NET developer have?
Essential skills are C# programming, SQL Server and database querying, troubleshooting and debugging, web front-end technologies (HTML, CSS, JavaScript) and AI Fluency. Most are tested at Intermediate level, with AI Fluency at Functional.
What soft skills matter most for a .NET developer?
The essential competencies are Problem Solving, Tech Savviness, Learning Agility, Collaboration and Communication. Grit, Workplace Ethic and Creative Thinking are useful optional additions.
Do .NET developers need AI skills?
Yes. AI Fluency is a High priority, and the target is Functional level: using AI tools daily, prompting well and verifying outputs. Unreviewed AI-generated code can introduce defects and security flaws.
How do you test .NET developer candidates?
Use skills assessments for C#, SQL, Troubleshooting, Javascript and AI Fluency, then add a competency profile. This gives a broader view than a CV review or a single coding exercise.
Is Azure experience required for a .NET developer?
No. Cloud deployment on Azure is a nice-to-have skill, not needed to do the job on day one. Use it as a tie-breaker between otherwise strong candidates.
Assess your next .NET Developer with Bryq
Book a Bryq demo to see how validated skills and competency assessments can help you hire your next .NET Developer with confidence.
Author
The Bryq I/O Team
Bryq’s I/O Psychology Team is a group of industrial-organizational psychologists who design and validate the science behind our assessments. They write about what research says on hiring, skills, personality, and performance, and how HR leaders can apply it to make fairer, evidence-based decisions.




