GoF Design Patterns and SOLID Principles for Developers — PickAClass
⏱ 2h 54m 📚 29 lessons 🎧 Audio version

GoF Design Patterns and SOLID Principles for Developers

Master clean code architecture, apply classic design patterns, and prepare for technical software engineering interviews.

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About this course

Writing clean, scalable code requires a solid grasp of object-oriented design fundamentals. This course guides you through core SOLID principles and classic Gang of Four (GoF) design patterns to help you build flexible software and navigate technical architecture interviews with confidence. You will learn to structure maintainable systems, refactor rigid code, and articulate architectural choices clearly. What you'll learn: - Understand core SOLID principles to design resilient object-oriented software - Implement creational patterns like Singleton, Factory Method, and Builder - Apply structural patterns such as Adapter, Decorator, and Facade to connect flexible components - Utilize behavioral patterns including Strategy, Observer, and Command for efficient object communication - Integrate modern decoupling techniques and dependency injection concepts - Solve software architecture challenges and prepare for common technical interview questions. You will start with foundational definitions, core object-oriented principles, and clean code terminology. Through detailed written explanations and code snippets, you will analyze each pattern's structure, trade-offs, and practical application. This beginner-friendly course is designed for aspiring software engineers, junior developers, and candidates preparing for technical interviews. No prior architecture experience is required. Start reading today to sharpen your design skills and advance your software development career.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 54m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
GoF Design Patterns and SOLID Principles for Developers
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
GoF Design Patterns and SOLID Principles for Developers
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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