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Tech Lead Interview Questions
3,068 tech lead interview questions shared by candidates
Design a smart meter for a building with 500 tenants
Tell me about yourself. Tell me about a time your team looked at you as a Leader. Describe a time where you had difficulty meeting a deadline. Tell me about a time you didn’t agree with a company decision and how did you handle it.
Tech questions too low level and tool based
Coding exercise on the fly --mostly on algorithms and data structures Work experiences Scenario based solution recommendations
Round 2 : Serialization, Object Cloning, Collections, Hibernate relationships, Spring AOP, Executer services, Concurrent hashmap (internal working), Reentrant Locks, Spring MVC, REST API, Synchronization, null related questions in collections, Singleton and factory design pattern. Round 4 (Looking for specific answers): Singleton design pattern, how singleton works in multithreaded environment, how java works with native OS thread, thread priority behaviour for singleton object in multithreading, resume explanations (questions will be on specific projects), what new technology explored other than mentioned in resume and questions on that, Green thread in java (outdated question), database optimized performance solution for fetching huge records. How to solve database related lazy loading performance issue.
Questions on java, hibernate, Spring, database. There major focus on database part. Mostly theoretical questions. Round 2 : Serialization, cloneable, Class loader, Marker Interface, Functional Interface, Hibernate Relationships, DI in spring, questions related to Null in java collections, Collections, thread safety, concurrent hashmap and its internal working, Spring MVC, REST Api Round 3 (Be careful, people are arrogant) : Explain resume (Questions will be on some project), Internal working of singleton in multi-threaded environment (at OS level), Intent of singleton design pattern, Green thread (outdated question which is related to java v 1.0. Hence you need to remember history as well), performance optimization for database query.
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