A practical, resource-packed course that helps .NET developers make confident sofware architecture decisions:

Architect .NET projects with confidence

Stop guessing what architecture fits your app.
Start building scalable and high-performant .NET solutions.

This video course is a guided playbook packed with concrete tools: architecture blueprints, reusable cheatsheets, and practical walkthroughs. Discover how to analyze requirements, pick the appropriate architectural style, and design scalable .NET solutions.

Quiz: is Zero to Architect Playbook for you?

Are you a senior .NET developer who’s ready to move beyond coding, but not sure how to think like an architect?

Discover how to analyze requirements, make architectural decisions with confidence, and finally understand what makes architectures scalable, maintainable, and performant.

2. Have you been working on legacy projects where you don’t usually build anything new, but work on existing code changes?

You will receive blueprints for building new apps using Clean, Vertical Slice, Modular Monolith, and Microservices architectures.

3. Do you want to progress your career by mastering software architecture fundamentals?

Instead of chasing shiny frameworks, you’ll build the timeless skills that senior engineers and architects use to design reliable systems that stand the test of time.

If any of these sound familiar… then Zero to Architect Playbook was made for you.

No more scattered tutorials…
Finally, a roadmap from senior developer to confident software architect you can follow.

Most .NET developers who try to “learn architecture” hit the same 8 problems again and again:

Architecture Paralysis: Too many styles (Clean, Modular, Microservices), no clarity on when to use which.
Unclear Requirements: Building features without understanding what non-functional needs (scalability, performance, security) truly drive your design.
Overengineering vs. Underengineering: Either adding endless abstractions or cutting too many corners. Both lead to tech debt.
Legacy Trap: Stuck in outdated .NET Framework projects, desperate to move to modern architecture but unsure where to start.
Scalability Anxiety: Unsure how to design systems that can handle real-world load and growth.
Decision Fatigue: Constantly second-guessing every architecture choice - no framework for deciding with confidence.
Lack of Big-Picture Thinking: Strong at coding, but struggling to connect classes, patterns, and services into one coherent architecture.
Career Stagnation: Years of experience, but still “just a developer” because you rely on someone else for architectural thinking.

And inside Zero to Architect Playbook, I show you how to demolish all of these. One by one.

Here's what .NET developers say after going through the playbook:

What's inside Zero to Architect Playbook?

Module #1 - Choose the Right Architecture for Your Project (€200 Value)

Most developers jump straight into coding or patterns when they start a project.

But real architecture begins with understanding requirements.

In this module, you’ll learn how to analyze functional and non-functional requirements, translate them into .NET design choices, and document your reasoning like a pro.

By the end, you’ll stop guessing what architecture fits and start choosing confidently, backed by logic and clear trade-offs.

Some of what's inside:

  • Discover the 1st law of software architecture: Everything is a trade-off
  • The simple test to tell whether a decision is “just code” or something that will haunt the project for years
  • Why two apps with identical features can require completely different architectures
  • How to extract architectural requirements from vague statements like “the screen should load fast”
  • The exact 5-step process architects use to turn feature descriptions into architectural constraints (a repeatable method you can use on your very next project)
  • How to explore risky ideas without polluting your production codebase
Assets inside this module:
Architecture Style Decision Matrix

Compare monolith, modular monolith, and microservices against real non-functional requirements so you can justify architecture choices instead of chasing the latest trend.

ADR (Architecture Decision Record) Template

Capture architectural decisions with context, trade-offs, and consequences so future you and your team know exactly why a choice was made.

ADR Vault

Collection of ADRs used in a .NET project showing how experienced developers make the sequence of architecture decisions in practice.

Architecture Diagram Toolbox

A curated list of 13 diagramming tools to visualize your architecture, many of which are free.

Module #2 - Maintainable Monolith Blueprints
(€600 Value)

When developers hear “monolith,” they think legacy, slow, or hard to change.

But in reality, a well-designed monolith can be one of the cleanest, fastest, and most maintainable architectures you’ll ever build.

This module is about mastering that skill, so you can build monoliths that stay organized, testable, and scalable as your system grows.

Some of the topics we'll cover:

  • Learn how to design monoliths that stay readable, testable, and easy to change as the codebase grows
  • Why some teams quietly move back to monoliths after loud microservices migrations
  • Walk away knowing exactly how to implement Clean Architecture in real code
  • See exactly how vertical slices look and feel in a real .NET codebase
  • CIA Blueprint: How Microsoft (and I) combine Clean Architecture and Vertical Slice Architecture (the most practical solution structure I’ve found for long-lived .NET systems)
Assets inside this module:
Clean Architecture Blueprint

Full source code of a real project structured with Clean Architecture, showing how to organize layers, dependencies, and boundaries in a maintainable way.

Vertical Slice Architecture Blueprint

Full source code of a project built with Vertical Slice Architecture, demonstrating how to structure features end to end without over-layering.

CIA Blueprint

Full source code of a production-style project using the CIA blueprint, the same structure Microsoft and I use to build real-world .NET applications.

Module #3 - Practical Modular Monolith Architecture
(€400 Value)

Many large teams outgrow a simple monolith faster than they expect.

But jumping straight to microservices often creates more problems than it solves.

In this module, you’ll learn how to design a practical modular monolith by defining clear boundaries, structuring modules, and controlling communication inside a single deployable system.

By the end of it, you’ll build applications using an architecture that stays simple today and flexible tomorrow.

A few things you’ll pick up:

  • Get a crisp definition and a mental model of what a modular monolith is, and why it’s often the best solution for large teams
  • Give me 14 minutes, and I’ll show you a step-by-step process for splitting your architecture into well-defined modules (includes the exact workflow you can copy for your next session)
  • 3 practical data isolation options, and when each one makes sense
  • Every architecture rule gets violated eventually, unless you do this 1 critical task (which finds broken architecture immediately)
Assets inside this module:
Event Storming Board

A Miro board that walks you through the steps needed to separate your domain into clear, well-defined modules before writing any code.

Modular Monolith Architecture

Full source code of a real application built as a modular monolith, showing how modules, boundaries, and communication are implemented in practice.

Module #4 - Break Down Systems Into Microservices With Confidence (€400 Value)

Most teams reach for microservices when the system starts to hurt.

But here's a good quote to questions that approach:
"If you can't build a well-maintained monolith, what makes you think you can build a well maintained microservices system?"

In this module, you’ll walk through a clear approach for organizing system into microservices.

Some lessons focus on concepts and trade-offs, while others dive into concrete examples and real production scenarios.

You’ll define service boundaries, choose between synchronous and asynchronous communication, and reason about data and consistency in distributed systems.

Some of the material we’ll cover:

  • 4 reasons to pick microservices (and 4 ways to achieve the same benefits with half of the cost)
  • How to define service boundaries without creating a distributed monolith
  • A concrete microservice template you can adapt for your own systems
  • The common communication patterns and the trade-offs behind each
  • Do you know how your distributed system is behaving in production right now? (If not, use these 3 signals to monitor your production)
Assets inside this module:
Microservice Architecture

Full source code of a real application built with microservices, showing service boundaries, communication patterns, and infrastructure choices used in practice.

Module #5 - Scalability Roadmap: From 1 User to 1 Million (€200 Value)

I used to think scaling starts with load balancers, queues, and multi-region setups.

But scalable systems almost never begin there.

They start with a simple app that works for one user. Then you fix the bottlenecks. Then you add the first real optimizations.

Only later do you introduce the “big infrastructure pieces.”

You can think of scaling as a series of small, deliberate steps that turn a normal application into one that can survive spikes and high traffic.

That’s exactly what this module gives you.

Some of the key takeaways:

  • Caching is the best way to immediately improve slow APIs, right? Wrong! This scalability method can improve performance 127x, without adding a new infrastructure component
  • What never to cache if you want predictable behavior
  • Speed up perceived performance without touching your API code
  • Keep APIs fast while still doing heavy work reliably
  • Handle spikes automatically without paying for unused capacity
Assets inside this module:
Database Query Optimization Checklist

A step-by-step checklist you can apply to existing EF Core queries to remove common performance bottlenecks and increase throughput before other infrastructure.

Essential Caching Guide

Source code and explanations showing how to apply hybrid caching correctly, so you reduce database load and improve response times without hiding real performance issues.

Background Jobs Scalability Source Code

Source code demonstrating how to move slow or heavy operations into background jobs using Hangfire to keep APIs responsive under increased load.

Worker-Based Scalability Architecture Example

Source code showing how to use a message broker and separate workers to decouple workloads, absorb traffic spikes, and improve system scalability.

Your Instructor - Kristijan Kralj

Senior .NET developer. 13+ years of experience. I’ve worked across the full spectrum: from WinForms and Web Forms monoliths, to building modern .NET cloud microservice applications for enterprises that generate millions annually.

A few data points to show, when it comes to delivering production .NET apps (and teaching about it), I know what I’m talking about!

  • 57,000+ LinkedIn followers.
  • 13+ years in .NET development.
  • Led and mentored 2 .NET teams.
  • Worked on 5 enterprise systems that generate 7 figures in annual recurring revenue.

Zero to Architect Playbook Course:

Total Value (€1800):

Choose the Right Architecture for Your Project (€200 VALUE)

Maintainable Monolith Blueprints (€600 VALUE)

Practical Modular Monolith Architecture (€400 VALUE)

Break Down Systems Into Microservices With Confidence (€400 VALUE)

Scalability Roadmap: From 1 User to 1 Million (€200 VALUE)

 

But you can get INSTANT lifetime access to these materials as well as all future course upgrades for just (€197) €97.

Zero to Architect Playbook
197 EUR
97 EUR
5 Modules
47 Video Lessons
Lifetime Access
Lifetime Updates
Covered By My 14-Day Guarantee

100% Satisfaction, No-Questions-Asked, Money-Back Guarantee!

Join Zero to Architect Playbook, explore the materials, and watch the lessons.

If you’re not 100% satisfied with the Zero to Architect Playbook course or the support after 14 days, feel free to email me for a full refund.

Make your payment today, and decide later if this is a good fit for you!

Take the full 14 days to explore the materials and experience the Zero to Architect Playbook course and THEN... make a decision using the information YOU HAVE, rather than the information you don’t.

The Full Curriculum

Module 1: Choose the Right Architecture for Your Project

  • What Is Software Architecture? (And Why Everyone Defines It Differently)
  • What Makes a Decision a Software Architectural One? (The Hidden Criteria Most Devs Miss)
  • Functional vs Non-Functional Requirements (The Invisible Drivers of Architecture)
  • How to Identify Non-Functional Requirements (Even When Nobody Writes Them Down)
  • How Non-Functional Requirements Shape Your App Architecture
  • Guidelines on How to Pick the Right Architectural Style
  • Non-Functional Requirements Mapped to Real-World  .NET Architecture Components
  • How to Eliminate Uncertainty When Designing Systems
  • 1 Document That Will Save Your App Architecture
  • Which Tools You Can Use to Draw Software Architecture Diagrams
  • Step-by-Step Walkthrough: Extracting Non-Functional Requirements from Client Requirements

 
Module 2: Maintainable Monolith Blueprints

  • Module Introduction
  • What Is a Monolith? (And Why It’s Not a Bad Word)
  • Real-World Lessons: When Companies Choose Monoliths (or Go Back to Them)
  • The Application We Will Build
  • Clean Architecture Blueprint: Structure Your Code the Right Way
  • How to Apply Clean Architecture in a Real .NET Project (Step by Step Code Walkthrough)
  • Vertical Slice Architecture Blueprint: a Simpler Way to Structure .NET Apps
  • How to Apply Vertical Slice Architecture in a Real .NET Project (Step by Step Code Walkthrough)
  • CIA Blueprint: How I (and Microsoft) Combine Clean Architecture and Vertical Slice Architecture

 
Module 3: Practical Modular Monolith Architecture

  • Module Introduction
  • What Is a Modular Monolith?
  • How to Split a Domain Into Modules?
  • Event Storming Step by Step
  • How to Structure Solution Projects (A Folder Layout That Enforces Boundaries)
  • How to Store Data (So Each Module Stays Independent and Maintainable)
  • How Modules Communicate (Sync and Async)
  • Catch Architectural Violations Early with Architecture Tests
  • When (and How) to Extract Modules to Microservices

 
Module 4: Break Down Systems Into Microservices With Confidence

  • Module Introduction
  • What Are Microservices?
  • 4 Reasons to Pick Microservices (And 4 Reasons Not To)
  • How to Define Service Boundaries
  • Microservice Architecture in .NET - Overview
  • Microservice Architecture in .NET - Code Walkthrough
  • Communication Between Microservices
  • Handling Data Consistency in Distributed Systems
  • Monitor Production With Observability and OpenTelemetry

 
Module 5: Scalability Roadmap: From 1 User to 1 Million

  • Module Introduction
  • Step 1 - Optimize Database Queries
  • Step 2 - The Essential Guide to Effective Caching
  • Step 3 - Serve Static Files Through a CDN for Faster Delivery
  • Step 4 - Handle Heavy Tasks With Background Jobs
  • Step 5 - Add Load Balancer & Horizontal Scale
  • Step 6 - Use Autoscaling Options to Save Money While Scaling
  • Step 7 - Add a Message Queue & Workers
  • Step 8 - Scale the Database with Read Replicas