Architect high-quality C++ applications using modern features and patterns, with expanded coverage of observability and cloud-native tooling, plus new content on monadic design techniques for modular C++ development.Key Features Architect high-performance C++ systems using C++20 and beyond Build, test, and secure production-ready systems by applying solid design principles Manage, package, and deploy cloud-native applications using CMake, Conan, and CI/CD Book DescriptionDesigning scalable and maintainable software with C++ requires more than language expertise—it demands architectural thinking and an ability to deliver systems in dynamic environments. This practical guide equips you with the architectural skills needed to design and build robust, distributed software systems using modern C++. Starting with fundamental architectural principles and design philosophies, the book walks readers through practical approaches to designing and deploying reliable systems. This edition includes significant updates and new content: chapters on observability, package management, and C++ modules address real-world software challenges. Readers will explore software decomposition strategies, design and system patterns, fault tolerance, API management, and testability—all applied with C++. Additionally, the book covers modern CI/CD pipelines, cloud-native design, microservices, and modular development, helping developers navigate today's fast-evolving software landscape. With updated examples and a renewed emphasis on maintainable and observable architectures, this edition equips C++ professionals to architect modern, production-grade systems. By the end of this book, you will be able to design, build, test, and deploy enterprise-grade software solutions using modern C++ and proven architectural techniques.What you will learn Apply architectural fundamentals to design scalable C++ systems Use modern C++ features to create maintainable and secure applications Implement architectural and system design patterns Design testable code and automate quality checks via CI/CD pipelines Manage dependencies and build systems using CMake and Conan Explore microservices, containers, and cloud-native practices in C++ Improve observability with logging, tracing, and monitoring tools Build secure, fault-tolerant, and high-performance production-grade software Who this book is forThis book is intended for experienced C++ developers and software engineers aiming to expand their architectural knowledge, lead software projects, or build scalable systems. It assumes readers are comfortable with modern C++ (C++11 onwards) and familiar with basic design principles and patterns.