About the Author

I’m V. Koike, a Senior Software Engineer with over 20 years of experience in full-stack development and cloud architecture.

When I began preparing for the DevOps Engineer Professional certification, I quickly realized that reading whitepapers and relying on rote memorization wasn’t going to cut it. The Professional tier doesn’t test facts; it tests operational instincts.

I built this active-recall engine to bridge the gap between theoretical knowledge and real-world troubleshooting. I successfully cleared the DOP-C02 in January 2024. I hold the AWS Certified DevOps Engineer – Professional, Machine Learning – Specialty, and Developer – Associate credentials.