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Software Principale Interview Questions

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10,184 software principale interview questions shared by candidates

Final, finally Bean Scopes in spring Old Java Design patterns: Proxy, Adapter, Facade How would you implement a singleton? Gotcha Snippets ( == / equals / instanceof and other quirky, autoboxing and unboxing gotcha questions) What would you say if your manager turns your proposal down, says simply "this is not how we used to do things", then refuses to elaborate.
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Principal Software Engineer/Architect/Technical Lead

Interviewed at Oracle

3.5★
Nov 14, 2025

Final, finally Bean Scopes in spring Old Java Design patterns: Proxy, Adapter, Facade How would you implement a singleton? Gotcha Snippets ( == / equals / instanceof and other quirky, autoboxing and unboxing gotcha questions) What would you say if your manager turns your proposal down, says simply "this is not how we used to do things", then refuses to elaborate.

Coding round: Started with relatively simple problem and became progressively more challenging. System Design, Architecture, and Performance: Aligned with traditional software development interviews but tailored to the specific domain and real-world constraints.. Culture fit: Focused on how the candidate approaches most common scenarios common in a product-driven development environment.
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Principal Engineer

Interviewed at Wayve

4.4★
Jan 22, 2026

Coding round: Started with relatively simple problem and became progressively more challenging. System Design, Architecture, and Performance: Aligned with traditional software development interviews but tailored to the specific domain and real-world constraints.. Culture fit: Focused on how the candidate approaches most common scenarios common in a product-driven development environment.

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