HERE Technologies Senior Software Engineer Interview Questions and Answers

DSA is asked, for example implement your HashMap, Stack, Queue

Q1. Spring boot advanced
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Q2. Java core advanced
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Q3. Reactjs hooks
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Q4. Optimisation techniques
Ans. 
Optimisation techniques are methods used to improve the efficiency and performance of software applications.
• Use of algorithms like dynamic programming to reduce time complexity

• Utilizing data structures like hash tables for faster data retrieval

• Implementing caching mechanisms to store frequently accessed data

• Profiling and analyzing code to identify bottlenecks and optimize them
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Q1. High level system design for newspaper
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A newspaper application system design involves components like user interface, content management, user authentication, and data storage.
• User interface for reading articles and viewing images/videos

• Content management system for publishing articles, managing categories, and scheduling posts

• User authentication system for login, registration, and profile management

• Data storage for storing articles, images, user data, and
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Q2. Google map application
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I had to solve a number of problems related to space and time complexity.

Q1. Java programs were given. Selenium Automation related questions were asked
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Q1. Java programs questions
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Q1. Salary negotiation discussion
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Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.
• Hashing function is used to convert keys into array indices

• Collisions can occur when multiple keys hash to the same index

• HashMap uses linked lists or binary trees to handle collisions

• Retrieving a value involves hashing the key to find the index and then traversing the linked list or tree

• Insertion and deletion involve sim...read more
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Arrays, Binary Tree, Other Data Structures and Basic to intermediate level coding problems