Software Engineering for Security Tools Questions

Practical ability to design, implement, test, and operate security utilities and tooling. Candidates should be able to write clear, correct code in languages such as Python, Go, or Bash for tasks like password validation, certificate expiration checking, log parsing and enrichment, basic cryptographic operations using standard libraries, API security checks, and simple authentication logic. Code should handle edge cases, include robust error handling and input validation, and demonstrate attention to performance and maintainability. For production quality tools, expect discussion of modular design, testability, unit and integration testing strategies, logging and observability, configuration management, secure handling of credentials and secrets, dependency management, and how to integrate tools into continuous integration and continuous delivery pipelines. Candidates should also show awareness of operational concerns such as monitoring the tool itself, tuning to reduce false positives, metrics to measure detection quality, and strategies for safe failure modes and scaling.