Technical Lead

JavaScript • Able to clearly explain how the JavaScript engine works, including: o Single threaded execution model o Handling asynchronous tasks using callback queues o Event loop mechanism and workload management • Demonstrate good understanding of JS fundamentals. CSS • Strong knowledge of mobile-first design, media queries, and responsive UI approaches. • Familiar with the BEM methodology for CSS structuring. • Improvement Area: Needs more depth in CSS optimization techniques and use of CSS variables for dynamic styling. TypeScript • Demonstrate solid understanding of: o Types and interfaces o Reusability patterns o Best coding practices • Follows coding standards using ESLint, formatting rules, and tools. Angular • Good knowledge of core Angular concepts: o Change Detection Strategy, including OnPush usage scenarios o Async Pipe, trackBy, and safe unsubscribe patterns using takeUntil and DestroyRef o Able to explain Signals (readable, writable), effect, and computed. • Understands Zone pollution, ngZone(), and use cases for runOutsideAngular(). Backend – Java / Spring Boot • Capable of applying object oriented design patterns: o Singleton Pattern o Factory Pattern for handling multiple payment gateways • Good understanding of backend reliability concepts: o Idempotent design through unique request IDs and status tracking o Explained IOC Container, bean lifecycle, and POJO usage • Familiar with: o Cron job configurations o Logging via Log4J • Able to explain: o Circuit Breaker, retry logic, and rate limiting o Event driven architecture and message queues o Basics of WAF and API Gateways Use of AI tools in their coding/testing process Team Leadership & Mentoring • Demonstrates good leadership traits: o Delegates tasks effectively o Monitors progress o Guides juniors to take ownership o Wore on code quality improvements and refactoring for optimization. • Highlight risks proactively (e.g., Angular/Java security upgrades) and works on mitigation.