C# Course with the SVILUPPATORE MIGLIORE method
Stop writing code that works by miracle. Learn to design solid, elegant software that drives business value, with direct mentoring from an architect with 25 years of experience.
1-on-1 Mentor On YOUR code Measurable results
Every year, thousands of companies invest in C# training for their teams.
Most of them get mediocre results: developers who come back to the office with a certificate and zero applicable skills. Code that doesn't improve. Architectures that remain fragile. Productivity that doesn't move an inch.
The problem is not C#. The problem is the way it is taught.
Generic courses, designed for beginners, delivered by trainers who have never set foot inside a software production company. Academic theory disconnected from the reality of the code your team must maintain, evolve and release every week.
If you are a CTO, a team leader or a senior developer considering a C# training investment for yourself or your team, you need to know that there is an alternative.
A path designed by someone who has been building enterprise software for over 25 years, not by someone who just teaches.
Why companies look for (and can't find) C# developers who are up to the task
C# is not just a programming language. It is the backbone of the Microsoft ecosystem: web applications with ASP.NET Core, desktop with WPF, mobile with MAUI, cloud with Azure, microservices, APIs, industrial automation.
The IT market has a chronic shortage of C# developers who can do more than write CRUD: professionals capable of designing scalable architectures, managing the complexity of legacy code, applying design patterns and making technical decisions that have a real impact on the business.
Here is the point: companies don't need another developer who "knows C#". They need professionals who can use C# to solve business problems, and that is exactly what our path transfers to you.
We don't teach syntax. We teach how to think, design and build software that works in production.
What you learn: the complete program
3 phases, 12 modules of intensive training on YOUR code.
Each module is accompanied by exercises on real code, not tutorial snippets, but scenarios that replicate the challenges your team faces every day.
3 phases, 12 modules of intensive training on YOUR code.
PHASE 1: Modern C# and Foundations (Weeks 1-4)
- 1
The C# your colleagues don't know yet (and that saves you hours every week)
Most C# developers use 30% of the language. Not out of laziness: nobody has ever shown them the features introduced in recent years. The result is code that is more verbose, more fragile and harder to read than necessary, written by people who are not lazy but simply don't know what the compiler could do for them. In this module you learn the modern C# that reduces code, eliminates bugs by design and makes intentions explicit.
Programma
- Record typesHow to eliminate 40-line classes, reducing them to 1 line and making objects immutable by design rather than by convention
- Pattern matchingHow to transform 20 lines of nested if/else into a 4-line switch expression that reads like prose
- Nullable reference typesThe compiler tells you at compile time where your code can blow up at runtime, before it actually does
- Global usings and file-scoped namespacesEliminate the visual noise that occupies the first 10 lines of every file without adding anything
- Collection expressionsBuild lists, arrays and spans with a unified syntax that also reduces memory allocation
- Source generatorsGenerate repetitive boilerplate code at compile time, zero reflection, zero runtime overhead, pure gain
Risultato
When your colleague opens your PR, they don't ask for explanations: the code communicates its intentions on its own. You write half the lines to do twice the things.
- 2
Stop writing classes that even AI doesn't want to touch
The code that breaks everything is not the code that doesn't work. It is the code that works but nobody understands, that is scary to touch, and that accumulates a bit more technical debt every sprint. The root cause is almost never a lack of talent: it is that nobody has taught the difference between a design that resists change and one that makes it risky. Here we address the root of the problem with SOLID, code smells and refactoring on real code.
Programma
- Composition vs inheritanceHow to understand in 30 seconds whether a class should extend or contain another, and why getting this wrong creates hierarchies impossible to evolve
- SOLID on real codeNot Wikipedia definitions, but concrete cases where violating SRP or OCP has already caused problems in your project
- Design by ContractPreconditions, postconditions, invariants, how to make explicit what every method expects and guarantees
- Sealed vs abstract vs interfaceThe selection guide that makes you stop deciding at random every time you define a new class
- God Class, Feature Envy, Data ClumpHow to recognise code smells in your code and dismantle them without breaking everything
- Step-by-step refactoringFrom 300 lines of procedural code to classes with a single clear responsibility
Risultato
Your code is a pleasure to read and modify. When a new feature arrives, you already know where to put it. Code review becomes a conversation about architecture, not an interrogation about what each line does.
- 3
From 40 lines of loops to 4 lines that read like prose
LINQ is C#'s superpower that most developers only use for Where and Select. Beneath the surface there is a functional model that reduces code, eliminates intermediate states and makes every data transformation readable at a glance. Those who don't know Aggregate, Zip, SelectMany and GroupJoin continually rewrite logic that the language already provides, producing code that needs comments to be understood and helper variables to be followed. Here you master the complete model with advanced operators, deferred execution and custom extension methods.
Programma
- Aggregate, Zip, SelectMany, GroupJoinThe advanced operators that solve in one line what would otherwise require a loop with helper variables
- IEnumerable vs IQueryableThe difference that decides whether the filter is executed in the database or after loading 200,000 records into memory
- Deferred executionWhy the query is not executed when you write it and how to leverage this to build composable and reusable pipelines
- Custom extension methodsHow to add domain-specific LINQ operators that integrate natively with the language
- Func, Action, delegates and closuresHow to pass behaviour as a parameter instead of duplicating the same logic in almost identical variants
- Immutability and pure functionsTransformations that don't modify state and are trivial to test and reason about
Risultato
You eliminate nested loops from your code. Every data transformation is a declarative pipeline that reads as if it describes the problem, not as if it explains how to solve it.
- 4
Why your async code probably has a bug you can't see
async/await seems simple: put await and the method becomes asynchronous. But every developer who has worked on real applications knows that behind that simplicity lurk silent deadlocks, hard-to-reproduce memory leaks and degradations that only appear under load. The problem is that these bugs don't manifest in development with a few users: they emerge in production, under pressure, at the worst possible moment, and they don't leave obvious traces in the logs. Here you learn to write async code that is correct by design, not by luck.
Programma
- Task vs ValueTaskWhen choosing wrong means allocating a heap object on every call and how to measure the real cost with BenchmarkDotNet
- ConfigureAwait(false)The line that saves desktop and ASP.NET applications from the most insidious and hardest-to-diagnose deadlocks
- Async streams with IAsyncEnumerableHow to process millions of rows from a database or file without ever loading them all into memory
- CancellationToken end-to-endHow to build the 'cancel' button that actually works, without leaving zombie operations running
- ChannelsThe correct way to connect a fast producer to a slow consumer without losing messages or blocking threads
- SemaphoreSlim, ConcurrentDictionary and thread safetyChoosing the right one and avoiding race conditions by design
Risultato
Your async code is correct by design, not by luck. You are no longer afraid to touch that class with 4 nested awaits. And when something goes wrong, you know exactly where to look.
PHASE 2: Architecture and Patterns (Weeks 5-10)
- 5
The design patterns you use every day without knowing it (and the ones that change your life when you do)
The list of 23 GoF patterns is a tool, not a goal. The problem is that most developers don't recognise them in existing code, and when they apply them they do so in the wrong place. A pattern applied without understanding the problem it solves adds complexity without bringing value: the result is a codebase that is hard to explain to newcomers and impossible to modify without breaking something. Here you learn to use them like a professional: at the right moment, in the right way, for the right reason.
Programma
- StrategyHow to replace if/switch blocks that grow every sprint with an object hierarchy that extends without touching existing code
- Factory and BuilderConstructing complex objects without exposing the details, and why the constructor with 8 parameters is almost always the signal that a Builder is needed
- Decorator and Chain of ResponsibilityHow to add behaviour without inheritance, the exact foundation of how ASP.NET middleware works
- Mediator with MediatR and CQRSHow to completely decouple who makes a request from who executes it, when the complexity is worth it and when it is over-engineering
- Observer with events and Rx.NETBuild systems that react to changes instead of continuously polling them
- Anti-patternsGod Object, Singleton abuse, Service Locator, how to recognise them in existing code and dismantle them without rewriting everything
Risultato
You read other people's code and recognise the patterns. You write your own and consciously choose which to apply. PRs become conversations about architecture, not explanations of what each line does.
- 6
How to build a system you can take apart and reassemble without fear
Dependency Injection is not an IoC container. It is an architectural principle that, applied well, makes every component replaceable, every service testable and every layer independent from the others. Applied badly it produces objects with 12 dependencies in the constructor and a registry nobody understands, and the team ends up injecting the container directly into classes as if it were a Service Locator. Here you learn correct DI alongside Clean Architecture and enterprise configuration management.
Programma
- Transient, Scoped, SingletonThe wrong lifetime choice is the number one cause of hard-to-reproduce bugs in multi-request ASP.NET Core applications
- Clean Architecture in practiceDomain, application, infrastructure, three layers with a single direction of dependency and a DbContext that the domain doesn't even know exists
- Vertical Slice ArchitectureHow to organise code by feature instead of by layer, the pragmatic alternative when Clean Architecture seems excessive
- Options patternType-safe configuration management, validated at startup and testable, stop the Configuration['key'] scattered everywhere in the code
- Modular monolithHow to separate code into cohesive modules with explicit boundaries, without the operational costs of microservices
- Keyed services and factory registrationsAdvanced DI scenarios for enterprise applications with conditional dependencies
Risultato
Write a test for every component in isolation without complex setup. Swap the database implementation without touching the business logic. The architecture works for you, not against you.
- 7
The EF Core queries that kill performance and how to find them before production
The scene is always the same: the application is slow, the database logs look normal, and nobody knows what is happening. In 9 out of 10 cases EF Core is generating SQL that nobody has ever read, turning a simple page into dozens of unnecessary queries, and this problem is never visible in development with a few test records. Here you learn to read the generated SQL, understand it and control it with the right profiling tools.
Programma
- Query logging and generated SQLHow to enable and read it, the first thing to do when EF is slow, which almost nobody ever actually does
- Advanced Fluent APIOwned types, value objects, table splitting, how to map a rich domain model without compromising its integrity
- Include and ThenIncludeHow to load relationships without the N+1 problem that turns 1 query into 1,000
- Split queries vs single queryWhen splitting a complex query gains seconds and when it actually makes things worse
- Compiled queriesPrecompile the query once, execute it thousands of times with no overhead, for high-frequency critical paths
- Managing migrations in a teamHow to avoid migration conflicts, handle multiple environments and never break production during deploy
Risultato
When the slow page becomes fast, you know exactly why. You read EF queries as if you had written the SQL by hand. No mysteries under the hood.
- 8
The safety net that lets you modify code without breaking a cold sweat
Tests are not documentation. They are not a requirement to check off before deploy. They are the only thing that lets you refactor with confidence, accept a new feature without fear of breaking the previous one, and sleep soundly after a late-night hotfix. A codebase without tests is a codebase nobody wants to touch, where every change is a risk and every sprint accumulates technical debt because nobody has the courage to clean up what is already there. Here you build the test suite that protects the code and accelerates delivery.
Programma
- xUnitOrganisation in classes, Theory with InlineData, IClassFixture for shared resources, how to structure a suite that scales to hundreds of tests without becoming unmanageable
- Moq and NSubstituteWhen to mock and when not to, mocking is not always the right answer and overusing it produces fragile tests that protect nothing
- Integration testing with WebApplicationFactoryTest the entire ASP.NET Core pipeline in memory, router, middleware, authentication, without a real server
- TestContainersSpin up a real PostgreSQL or SQL Server in Docker for integration tests and destroy the container at the end
- TDD in practiceNot textbook TDD, but the kind used in a project with real deadlines, red-green-refactor applied to the cases that matter
- Mutation testingHow to verify that your tests actually detect bugs, not just that the code gets executed
Risultato
The code has test coverage that protects every critical behaviour. You accept PRs with confidence. Regressions are caught within seconds of the commit, not by the customer the following week.
PHASE 3: Enterprise Professionalism (Weeks 11-16)
- 9
How to build APIs that last years and that frontend teams love to use
A poorly designed API is a contract you can't break. Every badly named endpoint, every inconsistent response, every misconfigured authentication becomes technical debt you pay for years. Changing an API already in production with clients that depend on it is one of the most expensive operations in software development, and it could almost always have been avoided with the right choices at initial design time. Here you design APIs like you build a product: thinking about who uses them, not just about who writes them.
Programma
- Minimal API vs ControllerThis is not just a style question, it is an architectural choice with concrete implications for testability, organisation and code scalability
- API versioningHow to evolve an API without breaking existing clients, URL versioning, header versioning, deprecation strategy
- JWT and OAuth2How to implement authentication and authorisation that stands up to a security audit, not just 'works with Postman'
- Rate limiting and output cachingThe two features that turn an API that collapses under load into one that always responds
- Problem Details (RFC 9457)How to return structured, readable errors instead of generic messages that help nobody resolve the problem
- OpenAPI and client generationAutomatic documentation that is always up to date and type-safe clients generated from the contract, zero drift between spec and implementation
Risultato
Your APIs have documentation that updates itself, errors that explain themselves and security that doesn't make CISOs tremble. Frontend teams thank you instead of asking for explanations.
- 10
When the application is slow: finding and fixing the bottleneck in under an hour
Optimising without measuring is guessing. And guessing in the performance domain costs weeks of work for zero gains, or introduces new bugs while solving a problem that perhaps didn't even exist. The correct method is measure first, optimise second and verify results with data: those who follow this order solve the real bottleneck the first time instead of going in circles for weeks. Here you apply the scientific method to .NET performance.
Programma
- BenchmarkDotNetHow to write a micro-benchmark that actually measures and how to avoid the 10 errors that make benchmarks misleading
- Span and Memory for performanceHow to process strings, arrays and buffers without allocating a single heap object, and when this optimisation is worth the added complexity
- ArrayPool and ObjectPoolReduce Garbage Collector pressure for expensive objects that are continuously created and destroyed in hot paths
- Profiling with dotTrace and Visual Studio DiagnosticsHow to find the method consuming 40% of CPU in a real application in 10 minutes
- LoggerMessage.DefineWhy poorly done structured logging allocates memory on every log entry and how to avoid it in critical paths
- System.IO.PipelinesHigh-performance I/O processing for network protocols and large file parsing without buffer copies
Risultato
You know where the bottlenecks are before users report them. You measure optimisations with data, not opinions. And when the manager asks 'why is it slow?', you have the exact answer.
- 11
The moment you stop deploying manually and never go back
Every manual deploy is a risk. Every 'I need to remember to change the connection string in production' is a bug waiting to happen. A well-built CI/CD pipeline is not a luxury: it is the difference between a team that releases with confidence and one that dreads every Friday, and this difference translates into delivery speed and final product quality. Here you build complete automation from commit to production.
Programma
- GitHub Actions for .NETFrom automatic build to production deploy on Azure, with triggers on PRs, branches and release tags
- Docker for .NET applicationsHow to write a multi-stage Dockerfile that produces small, secure and perfectly reproducible images in every environment
- Terraform and BicepHow to describe infrastructure as code and create a staging environment identical to production in 3 minutes
- Application Insights and OpenTelemetryHow to know exactly what is happening in production without hunting logs on an SSH server
- Feature flagsHow to release a feature to 5% of users, verify it works, then enable it for everyone without a new deploy
- Secrets and configurationHow to manage connection strings, API keys and certificates without ever putting them in the repository
Risultato
Deploy becomes a boring event, not a moment of tension. Press a button, wait 10 minutes, the new version is in production, tested, monitored and rollback-able in 30 seconds.
- 12
From developer to architect: build a complete enterprise system from scratch
The last module is not theory. It is a real end-to-end project where all the pieces come together: architecture, code, tests, deploy, monitoring and AI. An architect is not the person who knows the most technologies: they are the person who makes the right choices at the right moment, knows how to explain why they made them and knows how to guide a team toward the solution instead of imposing it. Here you build this capstone project and consolidate your professional identity as a software architect.
Programma
- Semantic Kernel and AI integrationHow to add LLM capabilities to a .NET enterprise application, RAG, function calling, custom plugins
- GitHub Copilot in the professional workflowHow to use AI to accelerate coding without losing control over architecture and quality
- ML.NETClassification, anomaly detection and prediction native to .NET, no Python, no cloud, no data scientist required
- Capstone projectComplete end-to-end architecture with all course patterns, Clean Architecture, CQRS, EF Core, APIs, automated tests, CI/CD
- Final code review with the architectAnalysis of the code produced, identification of improvement areas, consolidation of concepts
- Post-course growth planThe next 12 months, the books, communities and open source projects that are genuinely worth your time
Risultato
You leave with an enterprise code portfolio that demonstrates every acquired skill. You are the senior developer every team wants: the one who designs, decides and leads. Not the one who just executes.
The method: Progressive Mastery Architecture
Our path is not a course.
It is a technical and strategic mentoring system we call Progressive Mastery Architecture. No useless theory, straight to practical code on real problems.
Imagine a system that guides your team step by step:
- From the fundamental basics, clarified with exercises on real code (not hello world);
- All the way to advanced design patterns and cutting-edge technologies like Blazor, MAUI and ASP.NET Core;
- With bi-weekly sessions on your team's code, not on fake projects.
The secret is in the modular approach: each phase prepares the next, turning every concept into an immediately applicable skill.
Why it works where others fail
Unlike traditional courses that bombard your team with sterile theory and send them home with a PDF, this system works like an engineering process: every piece, from theory to practice, from basic concepts to advanced technologies, fits perfectly together.
No more fragmentation. No more "I did a course but can't apply anything". Only measurable results.
The 5 pillars of the method
Scalable progression, We start from the team's real level and advance toward advanced techniques. Nobody falls behind, nobody gets bored.
Exercises on real code, We work on your company's code, not academic examples. The ROI of the training shows from the first sprint after the path.
Integrated advanced technologies, ASP.NET Core, Blazor, WPF, Entity Framework, dependency injection: all explained in the context of your stack.
Productivity focus, Every session is optimised to not take productive time away from the team. Targeted sessions, not dispersive marathons.
Architectural evolution plan, We don't leave you with "best practices". We leave you with a clear plan to evolve your code over the following months.
The difference that makes the difference
The strength of the method lies in the modular approach: each phase prepares the next, turning every concept into a skill applicable in production.
✅ Incremental learning: the team assimilates complex concepts built on solid foundations.
✅ Practical exercises on real code: activate long-term memory, they are not forgotten after a week.
✅ Theory and practice combined: increase learning by up to 60% compared to theory-only courses (source: active learning studies).
Why C# and not another language
If you are reading this page, you have probably already chosen C#, or you are evaluating whether it is the right choice for your team.
Here is why C# is the language that companies who want to build long-lasting software bet on:
- Complete Microsoft ecosystem
- A single language for web, desktop, mobile, cloud, AI and industrial automation.
- No technology sprawl.
- Enterprise performance
- C# with .NET 10 achieves performance comparable to Go and Rust, with an enormously more mature library ecosystem.
- Stability and longevity
- Microsoft invests billions in .NET every year.
- It is not a trendy framework that disappears in 18 months.
- Available talent
- The C# developer pool is large.
- Finding (and training) talent is simpler compared to exotic stacks.
- Real cross-platform
- With .NET 10, the same code runs on Windows, Linux, macOS, iOS and Android.
Choosing between C# vs Java, TypeScript and Python
| Criterion | C# / .NET | Java | TypeScript | Python |
|---|---|---|---|---|
| Performance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐ |
| Enterprise ecosystem | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| Developer productivity | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Native desktop and mobile | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐ | ⭐ |
| Azure cloud integration | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
Who this path is for
Developer who wants to become a professional
You know the basics of C# but want to make the quality leap. You want to write enterprise code, understand architectures and become the developer companies compete to hire.
Developer from another language who wants to move to C#
You come from Java, Python or elsewhere and want to enter the .NET world on the right foot. Not a beginner course: a path that takes you directly to the professional level.
Team lead who wants to raise the team's level
Your team writes C# but the code is not up to standard. You want to introduce best practices, testing, clean architecture and grow everyone's skills.
Who is Matteo Migliore
What professionals who have followed the path say
Those who study with Matteo have the opportunity to access a very meaningful and concrete experience, entering the world of software development with a reliable and competent guide.
His training is a real opportunity for young people who want to pursue a career as a software architect.
I definitely recommend him, especially for the professionalism he has always shown and his ability to explain numerous topics that are normally not covered in these types of courses.
The WPF course I had the fortune to take with Matteo Migliore literally opened up an incredible world for me, allowing me to acquire all the techniques that will enable me to tackle increasingly important projects.
I definitely recommend Matteo for the technical content and the experience he brings; the training journey was also rich in anecdotes where he shared his experiences going all the way back to when he was a child.
I recommend Matteo's course especially to beginners and anyone who needs to learn how to structure an application, because this way you can start already with a correctly built architecture.
One difference I notice compared to other courses is a great passion for training, understood in a very broad sense. It is a mission for them, and beyond the specific WPF course topics, I always find tips and suggestions on cross-cutting subjects like design, software control and testing — which gives me something extra in my overall development approach.
Often there is little time and great difficulty managing on your own the issues you encounter daily, and if you tend to limit yourself to your own knowledge you end up stuck in your own mistakes.
Going back over things I had studied at university, explained step by step in a new language I had not studied before, was extremely useful.
I turned to our consultant, Matteo Migliore, to enter this new world.
Thanks to the course I learned a programming approach built in a much more sensible way than what I was doing before.
I recommend Matteo because he is a very competent person who loves his work and cares about helping others, making them more productive and more capable of mastering technology.
What I liked most was the new management of the project structure: separating the UI from the design layer, and in particular not writing code directly in the UI but structuring it properly.
Matteo doesn't simply read from a pre-prepared script but is able to go deeper into syntactic elements and design patterns, perfectly following the needs of whoever is learning.
Investment and path
Paths are structured to measure based on the number of participants, duration and complexity of the project.
Fill in the form to receive the complete program and a personalised quote based on your specific needs.
Individual Path
1 participant, personalised mentoring
- 12 complete modules (4 months)
- Live bi-weekly 1-on-1 sessions
- 12-month platform access
- Continuous chat support
Team Path
2-3 participants, department transformation
- 12 complete modules (4 months)
- Work on company codebase
- Intensive code reviews
- 12-month platform access for everyone
Intensive Workshop
1-3 themed days on specific modules
- Focus on specific modules of your choice
- Up to 5 participants
- Complete educational materials
- 30-day follow-up session
Ready to become a C# professional?
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