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Julio Casal Profile
Julio Casal

@julioc

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Become a .NET Cloud Developer | Founder @ .NET Academy | Ex-Microsoft

Free .NET Developer Roadmap โ†’
Joined May 2007
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@julioc
Julio Casal
5 days
Need to get started with .NET microservices?. Here's a free course for beginners:. It goes from zero to a fully working microservices application built with C# and Core. It covers:.- Dev environment setup.- What are microservices?.- Creating your first
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@julioc
Julio Casal
12 days
ASP .NET Core is 5.5x faster than Go (Gin). Here's why:. ๐—๐—œ๐—ง.The Just-In-Time (JIT) compiler in .NET 9 enhances code generation for faster performance. ๐—ฃ๐—š๐—ข.Dynamic Profile Guided Optimization (PGO) optimizes casts and tracks common input types for better efficiency.
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@julioc
Julio Casal
19 days
6 ways to scale your app to go from zero to a million users:. ๐Ÿญ. ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ฒ ๐˜€๐˜๐—ฎ๐˜๐—ถ๐—ฐ ๐—ฐ๐—ผ๐—ป๐˜๐—ฒ๐—ป๐˜ ๐—ณ๐—ฟ๐—ผ๐—บ ๐—ฎ ๐—–๐——๐—ก.CDNs distribute your static assets across global edge servers, reducing latency by 40-60%. This directly impacts user retention and conversion rates.
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@julioc
Julio Casal
26 days
Need to get started with Docker?. Here's a full course for .NET Developers:. It covers the basic Docker building blocks and how to deploy your .NET apps as containers to deliver software fast and consistently across environments. Included topics:. - Why Docker Containers?.-
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@julioc
Julio Casal
1 month
I've been testing .NET Aspire since late 2023. Hereโ€™s what Microsoft got right (and wrong):. NET Aspire is a set of tools, templates, and packages that speed up your code-to-cloud dev loop by helping you build production-ready apps from day 1. The 5 key areas where it shines
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@julioc
Julio Casal
1 month
What should .NET Developers learn next?. You can start with these 18 key areas:. 01. Internet basics.02. NET Essentials.03. Core Fundamentals.04. Web API.05. Databases.06. Deployment.07. Security.08. Testing.09. Version Control.10. Task Scheduling.11.
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@julioc
Julio Casal
2 months
.NET 9 is the biggest release yet. Top updates across 8 key areas:. ๐—–# ๐Ÿญ๐Ÿฏ .Params collections, enhanced lock types, and a new escape make coding smoother. Plus, implicit index access to simplify initialization. ๐—”๐—ฆ๐—ฃ.๐—ก๐—˜๐—ง ๐—–๐—ผ๐—ฟ๐—ฒ.OpenAPI enhancements, faster asset
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@julioc
Julio Casal
2 months
Microsoft Build 2025 just dropped tons of new stuff for devs. Hereโ€™s whatโ€™s new:. ๐— ๐—ถ๐—ฐ๐—ฟ๐—ผ๐˜€๐—ผ๐—ณ๐˜ ๐Ÿฏ๐Ÿฒ๐Ÿฑ ๐—–๐—ผ๐—ฝ๐—ถ๐—น๐—ผ๐˜ ๐—ง๐˜‚๐—ป๐—ถ๐—ป๐—ด.Use your own company data to fine-tune Copilot responses. ๐—”๐—ด๐—ฒ๐—ป๐˜๐Ÿฎ๐—”๐—ด๐—ฒ๐—ป๐˜ ๐—ถ๐—ป ๐—ง๐—ฒ๐—ฎ๐—บ๐˜€.Let agents securely talk and work together
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@julioc
Julio Casal
2 months
.NET 9 is the best platform for microservices. Here's why:. ๐—ฆ๐˜๐—ฎ๐—ป๐—ฑ๐—ฎ๐—ฟ๐—ฑ ๐—ฟ๐—ฒ๐˜€๐—ถ๐—น๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ต๐—ฎ๐—ป๐—ฑ๐—น๐—ฒ๐—ฟ.Adds retries, timeouts, and circuit breakers to HttpClient with one line. ๐—ฅ๐—ฎ๐˜๐—ฒ ๐—น๐—ถ๐—บ๐—ถ๐˜๐—ฒ๐—ฟ.Built-in middleware protects services from overload and abuse.
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@julioc
Julio Casal
2 months
I spent 3 years building CI/CD pipelines at Microsoft. They transformed my teams in 3 key ways:. 1. Developers could focus on writing codeโ€”not fiddling with build scripts or production boxes. 2. Code was built, tested, and deployed to production multiple times per dayโ€”with
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@julioc
Julio Casal
2 months
Struggling to secure your .NET app with Microsoft Entra?. This free course shows you the complete step-by-step. Most tutorials only show bits and pieces. You'll learn how to secure ASP .NET Core APIs and Web Apps properly with Microsoft Entra (formerly Azure AD), including:. โœ…
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@julioc
Julio Casal
3 months
Need to deploy your .NET Web app to Azure?. Here's a free course for beginners. It shows the simplest way to deploy ASP .NET Core Web Apps and APIs to the Microsoft Azure cloud, step-by-step. It also covers:.- How Azure hosts your application in the cloud.- How to troubleshoot
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@julioc
Julio Casal
3 months
5 books I can't recommend enough:. 1. Clean Architecture ( Robert Martin ). 2. Building Microservices ( Sam Newman ). 3. Unit Testing ( Vladimir Khorikov ). 4. Domain Driven Design ( Eric Evans ). 5. Head First Design Patterns ( Eric Freeman & Elisabeth Robson ). --.Get my Free
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@julioc
Julio Casal
3 months
5 reasons why a simple C# extension method beats AutoMapper most of the time:. ๐Ÿญ. ๐—ฆ๐—ถ๐—บ๐—ฝ๐—น๐—ถ๐—ฐ๐—ถ๐˜๐˜†. Write what you need, and only what you need. Extension methods allow for precise mapping without additional configuration overhead. ๐Ÿฎ. ๐—ฃ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐—ป๐—ฐ๐—ฒ. No reflection,
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@julioc
Julio Casal
3 months
Ready to become a .NET Backend Developer?. Here's a free course for beginners. Youโ€™ll go from zero to building a complete backend web application using ASP .NET Core and C#. Youโ€™ll learn how to:.- Build REST APIs from scratch.- Implement CRUD endpoints.- Use DTOs and extension
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@julioc
Julio Casal
4 months
5 books all software engineers should read:. 1. Clean Code ( Robert Martin ). 2. Designing Data-Intensive Applications ( Martin Kleppmann ). 3. System Design Interview ( Alex Xu ). 4. System Design Interview: Volume 2 ( Alex Xu & Sahn Lam ). 5. The Software Engineer's Guidebook (
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@julioc
Julio Casal
4 months
ASP .NET Core 8 is 10x faster than Node.js. In .NET 9, it's faster. Here's why:. ๐—๐—œ๐—ง.The Just-In-Time (JIT) compiler in .NET 9 enhances code generation for faster performance. ๐—ฃ๐—š๐—ข.Dynamic Profile Guided Optimization (PGO) optimizes casts and tracks common input types for
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@julioc
Julio Casal
4 months
You can't keep up with new developer technologies. You are not alone. Try these 5 things: . ๐Ÿญ. ๐—˜๐—บ๐—ฏ๐—ฟ๐—ฎ๐—ฐ๐—ฒ ๐—ฐ๐—ต๐—ฎ๐—ป๐—ด๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐˜€๐˜๐—ฎ๐˜† ๐—ฐ๐˜‚๐—ฟ๐—ถ๐—ผ๐˜‚๐˜€ .Don't feel intimidated by new technologies. Instead, view them as opportunities to expand your skill set and stay relevant
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@julioc
Julio Casal
4 months
It took me 4 years to reach the Senior band. Here are 5 things I mastered to get there:. ๐Ÿญ. ๐—”๐—ฆ๐—ฃ.๐—ก๐—˜๐—ง ๐—–๐—ผ๐—ฟ๐—ฒ ๐—œ๐—ป ๐——๐—ฒ๐—ฝ๐˜๐—ต.Knowing how to create a RESTful API is good for juniors, but Seniors must know dozens of advanced features available on the platform. Middleware,
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