- How to efficiently delete records from a relational database table with millions of rows - Practical understanding and application of SOLID principles - How to monitor and observe the health of running microservices - The differences and trade-offs between a monolithic architecture and microservices
What solid principles mean to you ?
Tell about the previous experience
Write code that is suppose to be very fast as processing some files.
Tell us about your experience
Principles: KISS, DRY, and YAGNI principles and their relationship Command Query Responsibility Segregation (CQRS) based on my previous experience context Shared context-related code like the Singleton design pattern SOLID principles Loose Coupling vs. Tight Coupling, Inversion of Control mechanism Security: XSS and SQL injection handling, Auth handling security like use of Cookie HttpOnly Best practices for storing JWT shared keys (e.g., session storage or secure-flagged cookies) Testing: Unit tests: Testing state vs. testing interaction, their relation with the maintainability of the code Database: SQL: Different join types, optimizing slow MySQL queries Comparison between DB engines, mainly InnoDB vs. MyISAM Strategies for changing a DB field name in production without disrupting other long running processes (maybe discussing transactional differences between engines) Coding Challenge: Fixing a state test function without using PHPUnit, but with assertions The payload transformation encapsulated within a private function (which we need to test), also called by another log function which call logger->log, the logger was not injected rather created by new, so it need ot be injected as an interface (e.g., PSR LoggerInterface) and creating a concrete logger to output the tested payload and assert with the given input of the test assertion function and maybe others I forgot
Question d'algorithmie (binary search tree) Question de design de système (indexation d'une block chain) Question de programmation fonctionnelle
Do you mind staying at the company to support the last deployment?
What are you doing in the current company?
A challenge about merchants and their disbursements over different periods of time.
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