Northern Trust Senior Software Engineer Interview Questions and Answers

Medium leetcode question on array list

Q1. Core java and collections, exceptions and threading
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Q2. Core java collections
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Q3. Multi threading
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Q4. Executor framework
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Q1. Threading related questions
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Hacker rank coding round - string and array - medium to hard

Q1. DSA Round with a focus on strings and trees questions
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Q1. UI coding round
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Q2. Quesitons on JS, TS, Angular and React
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Q1. System Design Round
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Q2. HLD and LLD for Zomato (Food Delivery App)
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Q1. Culture Fitment Round
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Q2. General Techno Managerial Questions
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Q1. Basic java questions and 2 DSA medium level problems
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Q2. Two sum leet code problem
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Q1. Design round. Design a system that send notification’s to all the passengers of trains just when the train arrives at the station next to it. And one question on tree LCA
Ans. 
Design a system to send notifications to train passengers when the train arrives at the next station.
• Use GPS tracking to determine train location in real-time

• Implement a notification system that sends alerts to passengers' devices

• Integrate with train schedule data to know when the train is approaching the next station
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Hackathon Test with 2 medium level coding question.

Technical Video Interview- Java concepts mostly related to Java 8, 1 coding program and some db questions were asked.

Q1. Questions related to System Design.
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Q1. Questions related to my projects . Some questions related to my current role and responsibilities.
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3 coding questions on hacekrank platform

Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap uses the hashCode() method of keys to calc...read more
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Q2. Springbbot, Microservices questions
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Q1. Project related
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Q2. System design questions
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Q1. General HR Discussion
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Q2. Why you want join the company
Ans. 
I want to join the company because of its innovative projects and strong reputation in the industry.
• Impressed by the company's track record of successful projects

• Excited about the opportunity to work on cutting-edge technologies

• Looking forward to collaborating with talented team members
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Competitive Programming

Q1. Java Basics, and related framework basics in depth
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Q1. Design Patterns and Design Principles
Ans. 
Design patterns and principles are essential for creating maintainable and scalable software.
• Design patterns are reusable solutions to common software problems.

• Design principles are guidelines for creating software that is easy to maintain and extend.

• Examples of design patterns include Singleton, Factory, and Observer.

• Examples of design principles include SOLID, DRY, and KISS.
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Q1. How you make yourself up to date with latest technologies
Ans. 
I stay up to date with the latest technologies by attending conferences, reading tech blogs, and participating in online forums.
• Attending conferences and tech events

• Reading tech blogs and articles

• Participating in online forums and communities

• Taking online courses and tutorials

• Experimenting with new technologies in personal projects
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Q1. Technical question based on project requirements
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Q1. Location constraint and salary discussion
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