Principal Software Interview Questions

10,184 principal software interview questions shared by candidates

The Technical Interview consisted of a coding problem for an LRU Cache. For the big session there were two coding problems reversing a singly linked list and a problem showing a list of messages based on a specific timeframe. One hour session was focused on Architecture, high level design, how is composed the architecture of the projects where I have participated. Other questions were examples of challenging projects, how to solve human conflicts in a working environment. The remaining two questions were based on how to manage a project (estimating, planning, coordinating, delivering, and maintaining), and about the phases of the software life cycle (requirements determination, analysis, design, coding, QA, implementation, and support.
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Principal Software Engineer

Interviewed at Oracle

3.5
Sep 5, 2023

The Technical Interview consisted of a coding problem for an LRU Cache. For the big session there were two coding problems reversing a singly linked list and a problem showing a list of messages based on a specific timeframe. One hour session was focused on Architecture, high level design, how is composed the architecture of the projects where I have participated. Other questions were examples of challenging projects, how to solve human conflicts in a working environment. The remaining two questions were based on how to manage a project (estimating, planning, coordinating, delivering, and maintaining), and about the phases of the software life cycle (requirements determination, analysis, design, coding, QA, implementation, and support.

Was asked how to estimate Fire case Load for a PSV while any good experienced process engineer would typically bother about controlling cases for Flare design arising out of Power failure, Tower reflux failure, Cooling water failure etc as Fire case is seldom the controlling case for a PSV (designed for multiple cases), Flare lateral or header but more of concern from a temperature stand-point due to temperatures getting closer to Carbon steel limits and requiring superior metallurgy.
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Senior Principal Process Engineer

Interviewed at Air Products

3.7
Jan 30, 2022

Was asked how to estimate Fire case Load for a PSV while any good experienced process engineer would typically bother about controlling cases for Flare design arising out of Power failure, Tower reflux failure, Cooling water failure etc as Fire case is seldom the controlling case for a PSV (designed for multiple cases), Flare lateral or header but more of concern from a temperature stand-point due to temperatures getting closer to Carbon steel limits and requiring superior metallurgy.

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