Other Companies (Name Not Shared) Angular Interview Questions for Lead / Architect
Shared question set for Lead / Architect of experience, Scenario-based (architecture). Topics and wording follow the supplied notes; these are questions, not official company guidance.
- An Angular application serves 5M users, but average page load time increases from 1.8 seconds to 5.5 seconds after multiple feature releases. How would you identify the bottleneck across change detection, component rendering, bundle size, API calls, RxJS subscriptions and browser performance? What would you optimize first?
- You inherit an enterprise Angular application with 600+ components, 80+ modules and multiple development teams. How would you structure shared components, feature modules, standalone components, state management, dependency injection and reusable services to improve maintainability and scalability?
- An application makes 40,000 API calls per hour, and users report stale data, duplicate requests and memory-related performance issues. How would you use RxJS operators, Subjects, cancellation, caching and subscription management to reduce unnecessary calls and improve responsiveness?
- A UAE enterprise Angular application handles sensitive customer transactions. Security testing identifies authentication weaknesses, excessive API exposure and potential XSS vulnerabilities. How would you strengthen authentication, authorization, route guards, HTTP interceptors, token handling, input validation, CSP and secure API communication?
- You inherit an Angular platform with slow load times, high technical debt, inconsistent coding standards, weak test coverage, large bundles, frequent production defects and slow release cycles. What would your first 90 days look like across architecture, performance, RxJS, state management and testing?