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Anotace knihy

Walk into your data engineering interview ready for every round.
Most people don't fail data engineering interviews because they lack skill. They fail because no one showed them what each round is really testing, or how to answer under pressure. This book fixes that. Data Engineering Interview Mastery & System Design is a complete, end-to-end preparation guide that follows the real shape of a modern DE interview, from SQL and Python fundamentals to the senior system design rounds where the best offers are won and lost. What you'll master:

• SQL interview problems: joins, window functions, CTEs, indexing, and query optimization
• Python for data engineers: generators, decorators, OOP, concurrency, and "what does this print?" questions
• Warehousing & modeling: OLTP vs OLAP, star and snowflake schemas, slowly changing dimensions, and Data Vault
• Lakes & lakehouses: Delta/Iceberg, ACID on files, schema evolution, and the medallion architecture
• Big data & cloud: Spark internals, shuffles and data skew, Kafka delivery guarantees, AWS, and Airflow
• System design: a repeatable framework plus four full designs - Batch ETL, Real-Time Streaming, Data Lakehouse, and a 5-billion-events/day Clickstream platform
• Career mastery: resume, LinkedIn, portfolio projects, mock interviews, and salary negotiation

Why this book is different?: Every key question follows a proven 8-part format - Question, Why Interviewers Ask, Simple Answer, Detailed Explanation, Real Business Example, Common Mistakes, Follow-up Questions, and Difficulty - so you don't just memorize an answer, you understand it and handle the follow-ups that actually decide the outcome. You also get 285+ rapid-fire questions in the appendices (Top 100 SQL, Top 50 Python, Top 50 Spark, Top 30 Kafka, Top 30 AWS, Top 25 System Design) and quick-reference cheat sheets for last-minute revision the night before.

Who it's for?: Freshers and career switchers, ETL/QA/analyst professionals moving into data engineering, software engineers crossing over, and experienced engineers targeting senior roles. Nobody is talked down to, and nothing is padded. This isn't a list of facts to memorize. It teaches you to think the way a data engineer thinks: clarify the problem, reason about how systems behave and fail, weigh the trade-offs, and say it all clearly out loud. The work ahead is real, and it's learnable. Scroll up, grab your copy, and start preparing the way the engineers who get hired do.

Parametry knihy

• Plný název: Data Engineering Interview Mastery & System Design
• Podnázev: Data Engineer Interviews with SQL, Python, Spark, Cloud & Production Architecture
• Autor: Masud Mondal
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 276
• EAN: 9798182198974
• ID: 52902885
• Nakladatelství: Independently published
• Hmotnost: 374 g
• Rozměry: 229 × 152 × 15 mm
• Datum vydání: 18. June 2026

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