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Solid Principles in C++

The Solid Principles in C++ course by C++ Institute teaches experienced C++ developers how to apply the five SOLID design principles—Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion—to build maintainable, scalable, and bug-resistant software. Designed for intermediate-level developers, it addresses the industry-wide challenge of managing complex codebases, where 60% of maintenance effort is spent on understanding legacy systems. With C++ developers earning $141,921 annually on average, mastering these principles directly enhances professional value.

This training prepares learners for the CPP – C++ Certified Professional Programmer (CPP-22-02) certification, validating advanced expertise in modern C++ development. Koenig Solutions delivers official vendor-authorized courseware with 30-day lab access, ensuring hands-on mastery. Graduates gain a globally recognized credential that accelerates career advancement into senior development and architecture roles.

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Course Overview

The Solid Principles in C++ course by C++ Institute is an intermediate-level training program designed for experienced C++ developers aiming to master modern software design methodologies. This course prepares learners for the CPP – C++ Certified Professional Programmer certification, a globally recognized credential that validates advanced programming expertise. Targeted at roles such as Senior Software Engineer, Systems Architect, and C++ Application Developer, the curriculum focuses on making codebases more maintainable, scalable, and robust. With C++ remaining a top language in performance-critical domains like embedded systems, gaming, and finance, demand for certified professionals is strong—over 70% of hiring managers at firms like Intel, Bosch, and Siemens prioritize candidates with formal C++ certification, according to C++ Institute industry data.

Participants engage with core C++ tools and environments to implement the five SOLID principles through extensive hands-on labs. The course covers modern C++ techniques using compilers like GCC and Clang, the Standard Template Library (STL), and RAII (Resource Acquisition Is Initialization) for resource management. Learners work within a live coding environment to refactor real-world codebases, applying principles such as the Open/Closed Principle to extend functionality without modification. A key project involves redesigning a monolithic Company and Employee class system by applying the Single Responsibility and Dependency Inversion Principles, resulting in modular, testable, and pluggable components that reflect industry best practices in enterprise-grade application design.

By completing the Solid Principles in C++ training, developers gain direct preparation for the CPP – C++ Certified Professional Programmer exam, a credential trusted by global employers including Cisco, HPE, and Tata Consultancy Services. Certified professionals report average annual salaries between $110,000 and $160,000 in North America, with strong demand in finance, automotive, and AI infrastructure sectors. Koenig Solutions enhances this learning path with Guaranteed-to-Run batches, official C++ Institute courseware, and optional 1-on-1 training, ensuring personalized mastery. Graduates emerge equipped to lead software design initiatives, reduce technical debt, and advance into senior engineering or architecture roles in high-performance computing environments.

What You'll Learn

✓Design C++ classes following the Single Responsibility Principle to improve code clarity and maintainability
✓Implement the Open-Closed Principle in C++ modules to enable easier feature extensions without modifying existing code
✓Apply the Liskov Substitution Principle in C++ inheritance hierarchies to ensure reliable object substitution and reduce bugs
✓Enforce the Interface Segregation Principle in C++ interfaces to create more focused and easier-to-maintain code
✓Manage dependencies effectively using the Dependency Inversion Principle to enhance flexibility and testability of C++ applications
✓Identify and resolve common design smells in C++ code to improve overall software quality and robustness

Prerequisites

Recommended knowledge before taking this course
  • Minimum of 2 years of professional C++ development experience
  • Completion of CPA or CPP certification or equivalent knowledge
  • Proficiency in C++11/14/17 standards and modern language features
  • Practical experience with C++ Standard Template Library components
  • Working knowledge of C++ memory management and RAII principles
  • Demonstrable experience in designing and refactoring object-oriented class hierarchies
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Certification Exam

Everything you need to know about the Solid Principles in C++ certification exam

Exam Details
Exam Name
Solid Principles in C++
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
N/A
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Solid Principles in C++

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Course Curriculum

Structured learning with hands-on labs and real-world scenarios

1
Day 1– Mastering Solid Principles in C++17/20 and Design Fundamentals
Core Software Design Objectives using C++17/20 features Detecting Common Design Smells with Clang-Tidy Effective Software Design Workflows Implementing Minimalistic Design Patterns Test-Driven Development C++ Essentials using GoogleTest Single Responsibility Principle Overview Practical SRP Lab: Reducing coupling via abstract interfaces Open/Closed Principle Architecture
2
Day 2– Advanced Solid Principles in C++17/20 and Refactoring
Refactoring Employee Class OCP Lab: Improving extensibility Refactoring Company Class OCP Lab: Enhancing modularity Liskov Substitution Principle Mastery Hands-on LSP Lab: Ensuring behavioral subtyping with Catch2 Interface Segregation Principle Techniques Hands-on ISP Lab: Minimizing interface pollution Dependency Inversion Principle Logic Hands-on DIP Lab: Decoupling high-level modules from low-level details

What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Career Outcomes

78%

of Solid Principles in C++ certified professionals report career advancement within 6 months

Salary Impact

+19%

Average salary increase reported after obtaining the Solid Principles in C++ certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • C++ Software Developer
  • Software Engineer (C++)
  • Systems Programmer
  • Application Developer
  • Backend Engineer
  • Embedded Software Engineer

Companies Hiring

5,000+
Microsoft Google Amazon Adobe Intel Boeing Accenture Deloitte JP Morgan Siemens

and 5,000+ organizations worldwide seeking Solid Principles in C++ certified professionals

Real Transformations

Course Student Reviews

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    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

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    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

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    AZ-104 Certified ✓ Verified
  • ★★★★★

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    Sarah K.

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    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified

Frequently Asked Questions

Everything you need to know about the Solid Principles in C++ training course

Is the C++ Institute certification exam included in the Solid Principles in C++ course fee, and what is the cost if purchased separately?
The C++ Institute certification exam is not included in the course fee and must be purchased separately for USD 325. A retake option is available for USD 375. Exam vouchers can be bought via the OpenEDG Voucher Store or directly through Pearson VUE, and they remain valid for at least 90 days from purchase.
What training formats are available for the Solid Principles in C++ course, and does Koenig offer Guaranteed-to-Run scheduling?
Koenig offers the Solid Principles in C++ course in live online instructor-led and 1-on-1 formats, with Guaranteed-to-Run (GTR) scheduling ensuring classes proceed regardless of enrollment. The course spans 16 hours over two days and is delivered by expert instructors, allowing flexible learning with assured session availability.
How long is lab access provided for the Solid Principles in C++ course, and what type of lab environment is used?
Lab access for the Solid Principles in C++ course is provided for 4 hours during training using a cloud-based sandbox environment. This hands-on setup allows secure, practical implementation of SOLID principles without requiring local installations, enabling immediate application of design concepts in a real-world context.
What is Koenig's rescheduling and cancellation policy for the Solid Principles in C++ course?
Koenig allows free rescheduling of the Solid Principles in C++ course if requested at least 10 days before the start date; changes within 10 days incur a 50% fee. Cancellations with more than 10 days' notice receive a full refund, while later cancellations are subject to the same 50% charge.
What is the format, number of questions, passing score, and time limit for the C++ Institute certification exam related to Solid Principles in C++?
The C++ Institute CPP exam consists of 40 multiple-choice and single-choice questions, with a 65-minute time limit plus 10 minutes for NDA/tutorial. A passing score of 70% (28 correct answers) is required. The exam version is CPP-22-02, administered via Pearson VUE at test centers or online.
How long is the C++ Institute certification valid, and what is the renewal process and cost?
The C++ Institute certification is valid for life with no renewal required. According to official policy, there are no recurring fees, continuing education credits, or recertification exams. Your credential remains permanently verifiable through a digital badge issued via Credly, ensuring lifelong recognition of your achievement.
What post-training support does Koenig provide after completing the Solid Principles in C++ course?
Koenig provides 30 days of post-training support including access to recordings, study materials, and expert mentorship for doubt resolution. Learners also benefit from exam guidance, technical support, and eligibility for revision classes. The Happiness Guarantee ensures assistance until certification success, reinforcing long-term learning outcomes.
What are the prerequisites or prior experience needed for the Solid Principles in C++ course?
The Solid Principles in C++ course requires prior experience as an intermediate-level C++ developer. Familiarity with object-oriented programming, inheritance, polymorphism, and basic design patterns is essential. The course is designed for developers aiming to refine their architectural skills using SOLID principles in real-world applications.
What career impact and salary benefits can professionals expect after mastering Solid Principles in C++?
Professionals skilled in Solid Principles in C++ see a 15–20% salary premium, with senior C++ developers earning $110,000–$150,000 annually in the US. These principles enhance employability in high-performance domains like finance, gaming, and embedded systems, where maintainable, scalable code is critical for large-scale software projects.
How does Koenig's instructor-led Solid Principles in C++ training compare to self-study options?
Koenig’s instructor-led training offers structured learning with live doubt resolution, hands-on labs, and expert mentorship, unlike self-study. With a 30-day support window, GTR scheduling, and Happiness Guarantee, it ensures higher certification success rates compared to unguided preparation using books or free online resources.

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