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Software Engineer Principal Interview Questions

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2,049 software engineer principal interview questions shared by candidates

(for higher level engineers): Build a one-hour presentation describing a project which I led. How did I determine the desired outcomes, what challenges did I face, how did I drive implementation, how did I determine whether the project was successful.
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Principal Software Engineer

Interviewed at Turo

2.6★
Jan 19, 2023

(for higher level engineers): Build a one-hour presentation describing a project which I led. How did I determine the desired outcomes, what challenges did I face, how did I drive implementation, how did I determine whether the project was successful.

1) How Java JVM works 2) Talk about Java data structures 3) Big O notations and tradeoffs 4) LinkedHashMap 4) Thread safety 5) JSON Library in Java 6) Java Script > Hoisting 7) Currency in Java 8) Handle rounding errors in Java 9) SQL Injections in Java Microservices failures 10) What project you would scratch and redo it? 11) How do you learn new tech? 12) Top 2 improvements made by you.
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Principal Software Engineer

Interviewed at Walgreens Boots Alliance

3.2★
Oct 8, 2022

1) How Java JVM works 2) Talk about Java data structures 3) Big O notations and tradeoffs 4) LinkedHashMap 4) Thread safety 5) JSON Library in Java 6) Java Script > Hoisting 7) Currency in Java 8) Handle rounding errors in Java 9) SQL Injections in Java Microservices failures 10) What project you would scratch and redo it? 11) How do you learn new tech? 12) Top 2 improvements made by you.

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