Binary tree traversal, implement a map structure, design a system for data collection regarding to Spotify statistics, etc.
Platform Engineer Interview Questions
3,052 platform engineer interview questions shared by candidates
The technical solutioning round. The senior specialist was very good in foundations and went in details on component design etc. The discussion was balanced and tricky also.
The interview had two rounds. The technical round started with an introduction and a detailed discussion on the candidate's internship, challenges faced, and solutions. Candidates rated themselves in SQL and Python, followed by advanced SQL questions on lead, lag, coalesce, window functions like rank/dense_rank, guesstimates (e.g., estimating cabs in a city, food wastage), ETL vs. ELT, data pipelines, sharding, data architecture, virtual cloud networks, and ingestion concepts. Python topics like list vs. tuple, deep vs. shallow copy, data frames, and Power BI data types were also covered.SQL Coding questions included finding the third-highest salary per department and handling ties.Advanced SQL coding questions & Data engineering core concepts were also asked. The second round (EBI) focused on internship relevance, leadership scenarios like overcoming bias/groupism, and corporate parallels. Puzzles included the hourglass problem and dividing a cuboidal cake into two equal parts. The process tested technical skills, problem-solving, adaptability, and workplace readiness.
Will test across technologies .. Reason for switching barring your personal resons
1. How does Hash map works internally. 2. Explain collision scenario. 3. Changes in Hash map in Java 8 4. What is load factor in Hash Map 5. How do you change the load factor.
1. Design Principles - Solid - Explain 2. What are different design pattern you have worked upon. 3. Write production ready code for Observer Design pattern - Time 15 min. 4. Where have you used Singleton Design pattern. Examples in Java class library
networking protocols ,tcp-ip model, udp and linux commands
What you do if internet is not working? what and all you check? and some 2-3 puzzles
java
java no ds algo
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