Milan Jovanović

@UCC_dVe-RI-vgCZfls06mDZQ - 152K subscribers

Hi there, my name is Milan, and welcome to my YouTube channel! 👋 My goal with this channel is to share my .NET and C# knowledge with you. I make videos about software engineering and software architecture, distributed systems, Domain-Driven Design, and any software-related topic I find interesting.

Home Videos Live Playlists

How to Build an AI Recommendation Engine (That Actually Works)

How to Build an AI Recommendation Engine (That Actually Works) Milan Jovanović

3.5K views - 16 hours ago

How OpenAI Scaled Postgres to 800 Million Users (Step-by-Step)

How OpenAI Scaled Postgres to 800 Million Users (Step-by-Step) Milan Jovanović

11.6K views - 4 days ago

How to Secure .NET 10 APIs with Keycloak and OAuth 2.0

How to Secure .NET 10 APIs with Keycloak and OAuth 2.0 Milan Jovanović

8.5K views - 1 week ago

Don't Ship Server-Sent Events Without Doing This

Don't Ship Server-Sent Events Without Doing This Milan Jovanović

6.5K views - 1 week ago

I'm Not Giving Up On Postgres as Cache (and neither is Microsoft)

I'm Not Giving Up On Postgres as Cache (and neither is Microsoft) Milan Jovanović

10.3K views - 2 weeks ago

You Don't Need a Dockerfile Anymore

You Don't Need a Dockerfile Anymore Milan Jovanović

18.2K views - 2 weeks ago

“Just Use Exceptions” Is Bad Advice in .NET

“Just Use Exceptions” Is Bad Advice in .NET Milan Jovanović

14.5K views - 3 weeks ago

Advanced Caching Strategies: L1/L2 Synchronization with .NET + Redis

Advanced Caching Strategies: L1/L2 Synchronization with .NET + Redis Milan Jovanović

7.4K views - 3 weeks ago

Stop "Vibe Coding": An Engineering Approach to AI

Stop "Vibe Coding": An Engineering Approach to AI Milan Jovanović

25.8K views - 4 weeks ago

Getting Started With Keycloak in 2026 (free Identity Server alternative)

Getting Started With Keycloak in 2026 (free Identity Server alternative) Milan Jovanović

20.2K views - 1 month ago

Zero Downtime Password Hash Migration: The Lazy Upgrade Pattern

Zero Downtime Password Hash Migration: The Lazy Upgrade Pattern Milan Jovanović

4.9K views - 1 month ago

What Every .NET Developer Actually Needs to Know in 2026

What Every .NET Developer Actually Needs to Know in 2026 Milan Jovanović

66.8K views - 1 month ago

I Failed This .NET Interview Question... So You Don't Have To

I Failed This .NET Interview Question... So You Don't Have To Milan Jovanović

27.4K views - 1 month ago

Here's What I Think About Aspire Testing (honestly... surprised)

Here's What I Think About Aspire Testing (honestly... surprised) Milan Jovanović

6.8K views - 1 month ago

How SQL Indexes Actually Work (Step-by-Step)

How SQL Indexes Actually Work (Step-by-Step) Milan Jovanović

27.4K views - 1 month ago

Stop Running EF Core Queries One-By-One (Do This Instead)

Stop Running EF Core Queries One-By-One (Do This Instead) Milan Jovanović

23.8K views - 1 month ago

How to Run Azure Service Bus Locally using .NET Aspire

How to Run Azure Service Bus Locally using .NET Aspire Milan Jovanović

7K views - 1 month ago

Goodbye SignalR? Native Server-Sent Events are Here!

Goodbye SignalR? Native Server-Sent Events are Here! Milan Jovanović

36K views - 1 month ago

Distributed Messaging Made Easy With Wolverine & RabbitMQ

Distributed Messaging Made Easy With Wolverine & RabbitMQ Milan Jovanović

6.8K views - 2 months ago

EF Core 10 Finally Adds LeftJoin + RightJoin (Too Little, Too Late?)

EF Core 10 Finally Adds LeftJoin + RightJoin (Too Little, Too Late?) Milan Jovanović

7.4K views - 2 months ago

How I Upgraded to .NET 10 in Minutes + New .slnx Format

How I Upgraded to .NET 10 in Minutes + New .slnx Format Milan Jovanović

17.7K views - 2 months ago

Why Developers Hate Clean Architecture (And Why I Use It Anyway)

Why Developers Hate Clean Architecture (And Why I Use It Anyway) Milan Jovanović

17.1K views - 2 months ago

Why I'm Finally Trying Wolverine (and How It Compares)

Why I'm Finally Trying Wolverine (and How It Compares) Milan Jovanović

18.4K views - 2 months ago

This Interview Question Changed How I Think About System Design

This Interview Question Changed How I Think About System Design Milan Jovanović

16.9K views - 2 months ago

How to Add AI to Your .NET App Using GitHub Models (In Minutes!)

How to Add AI to Your .NET App Using GitHub Models (In Minutes!) Milan Jovanović

8.4K views - 2 months ago

Stop Storing Secrets in appsettings.json! Use Azure Key Vault Instead

Stop Storing Secrets in appsettings.json! Use Azure Key Vault Instead Milan Jovanović

9.6K views - 2 months ago

EF Core + Stored Procedures: The Right Way to Call Legacy SQL

EF Core + Stored Procedures: The Right Way to Call Legacy SQL Milan Jovanović

8K views - 2 months ago

Fix Duplicate Messages with the Idempotent Consumer Pattern

Fix Duplicate Messages with the Idempotent Consumer Pattern Milan Jovanović

8K views - 3 months ago

Microservices Communication Patterns Explained in .NET

Microservices Communication Patterns Explained in .NET Milan Jovanović

14.9K views - 3 months ago

8 Pragmatic REST API Design Tips (From Real Projects)

8 Pragmatic REST API Design Tips (From Real Projects) Milan Jovanović

32.7K views - 3 months ago

How to Stream Postgres WAL Changes Into .NET with Npgsql (Logical Replication & CDC)

How to Stream Postgres WAL Changes Into .NET with Npgsql (Logical Replication & CDC) Milan Jovanović

12.9K views - 3 months ago

How to Protect Endpoints with Role-Based Access Control in .NET

How to Protect Endpoints with Role-Based Access Control in .NET Milan Jovanović

20.4K views - 3 months ago

The Secret to Shipping Safe Code With AI: SonarQube MCP Server

The Secret to Shipping Safe Code With AI: SonarQube MCP Server Milan Jovanović

25.1K views - 3 months ago

Microservices Architecture Project Setup From Scratch With .NET Aspire

Microservices Architecture Project Setup From Scratch With .NET Aspire Milan Jovanović

15.3K views - 3 months ago

DB-First with EF Core: Scaffold Your DbContext from an Existing Database (Step by Step)

DB-First with EF Core: Scaffold Your DbContext from an Existing Database (Step by Step) Milan Jovanović

11.3K views - 3 months ago

Production-Ready Distributed Locking in .NET Using a Single Library

Production-Ready Distributed Locking in .NET Using a Single Library Milan Jovanović

13.2K views - 4 months ago

Build Async Messaging in .NET with Azure Service Bus (Step-by-Step)

Build Async Messaging in .NET with Azure Service Bus (Step-by-Step) Milan Jovanović

29.5K views - 4 months ago

From God Service to Clean Domain: A Step-by-Step DDD Refactor in C#

From God Service to Clean Domain: A Step-by-Step DDD Refactor in C# Milan Jovanović

14.7K views - 4 months ago

Serverless .NET: API Gateway → Lambda → SNS/SQS (End-to-End)

Serverless .NET: API Gateway → Lambda → SNS/SQS (End-to-End) Milan Jovanović

25.3K views - 4 months ago

.NET Aspire and AWS: From Zero to SNS + SQS in minutes

.NET Aspire and AWS: From Zero to SNS + SQS in minutes Milan Jovanović

20.1K views - 4 months ago

JWT Authentication with ASP.NET Core Identity Done Right

JWT Authentication with ASP.NET Core Identity Done Right Milan Jovanović

19.7K views - 4 months ago

Dead-Letter Queues in .NET Explained with Amazon SQS

Dead-Letter Queues in .NET Explained with Amazon SQS Milan Jovanović

18.5K views - 4 months ago

.NET Dependency Injection Done Right

.NET Dependency Injection Done Right Milan Jovanović

19.1K views - 4 months ago

5 HttpClient Best Practices Every .NET Dev Should Know

5 HttpClient Best Practices Every .NET Dev Should Know Milan Jovanović

22.7K views - 4 months ago

Getting Started With Infrastructure as Code (AWS CDK, CloudFormation)

Getting Started With Infrastructure as Code (AWS CDK, CloudFormation) Milan Jovanović

26.8K views - 5 months ago

The RIGHT Way to Build Multi-Tenant APIs in .NET

The RIGHT Way to Build Multi-Tenant APIs in .NET Milan Jovanović

28.3K views - 5 months ago

Semantic Search in .NET From Scratch with Amazon S3 Vectors

Semantic Search in .NET From Scratch with Amazon S3 Vectors Milan Jovanović

23K views - 5 months ago

ASP.NET Core Identity from Scratch: DB Context, Roles, Registering Users

ASP.NET Core Identity from Scratch: DB Context, Roles, Registering Users Milan Jovanović

26K views - 5 months ago

What is a Reverse Proxy? YARP Explained

What is a Reverse Proxy? YARP Explained Milan Jovanović

10.8K views - 5 months ago

Amazon S3 Presigned URLs Uploads and Downloads Tutorial

Amazon S3 Presigned URLs Uploads and Downloads Tutorial Milan Jovanović

40.8K views - 5 months ago

I Built a SignalR Typing Indicator From Scratch (WebSockets made easy)

I Built a SignalR Typing Indicator From Scratch (WebSockets made easy) Milan Jovanović

10.2K views - 5 months ago

Roy Fielding Says: Don’t Version APIs. Here’s Why.

Roy Fielding Says: Don’t Version APIs. Here’s Why. Milan Jovanović

15K views - 5 months ago

The Fastest Way to Add AI to Your .NET App: Amazon Bedrock

The Fastest Way to Add AI to Your .NET App: Amazon Bedrock Milan Jovanović

40.9K views - 5 months ago

This EF Core Mistake Is Wrecking Performance (Fix Inside)

This EF Core Mistake Is Wrecking Performance (Fix Inside) Milan Jovanović

20.3K views - 6 months ago

I Migrated 40 Projects to Central Package Management in Minutes

I Migrated 40 Projects to Central Package Management in Minutes Milan Jovanović

14.8K views - 6 months ago

Rate Limiting Minimal APIs and Controllers the Right Way

Rate Limiting Minimal APIs and Controllers the Right Way Milan Jovanović

11.5K views - 6 months ago

Named Query Filters in EF Core 10 Are a Game Changer

Named Query Filters in EF Core 10 Are a Game Changer Milan Jovanović

14K views - 6 months ago

I reviewed the .NET Aspire 2025‑26 Roadmap. Here are my thoughts

I reviewed the .NET Aspire 2025‑26 Roadmap. Here are my thoughts Milan Jovanović

10K views - 6 months ago

The New Way to Write .NET Apps (and It's Awesome)

The New Way to Write .NET Apps (and It's Awesome) Milan Jovanović

16.7K views - 6 months ago

Why I’m Obsessed With This AWS Observability Setup (AWS.Messaging + X-Ray)

Why I’m Obsessed With This AWS Observability Setup (AWS.Messaging + X-Ray) Milan Jovanović

12.5K views - 6 months ago