Derar Alhussein is a highly accomplished senior data engineer with more than a decade of experience in software and data engineering, specializing in Databricks and Apache Spark. He holds a master’s degree in data mining and has earned multiple Databricks certifications, including the prestigious Databricks MVP recognition. Beyond his industry work, he is also the author of the Databricks Certified Data Engineer Associate Study Guide published by O’Reilly, showcasing his deep expertise in data engineering principles, cloud data platforms, and scalable data processing.

As a Udemy instructor, Derar has trained over 100,000 students through his certification-focused courses, hands-on labs, and practice exams for both the Associate and Professional Data Engineer certifications. His teaching style emphasizes practical, real-world application—helping learners build robust ETL pipelines, understand Delta Lake, master Spark, and prepare to succeed in Databricks certification exams. Through his platform, derar.cloud, and ongoing community contributions, he continues to guide and mentor aspiring data engineers around the world.