CME Group Software Engineer III Interview Questions and Answers

There was a take home coding test - application to allot a parking lot.

Q1. Questions around optimisations around parking lot application submitted in round1. Implement more use cases asked on the spot System Design/Scaling related questions
Add your answer

Q1. Mine was java, so Java technical questions, Java new features Questions around Design patterns Questions on SOLID principles
Add your answer

Q1. Use case was given for wallet(e.g. pay later wallet) and asked to design basic REST APIs. E.g. User have balance in wallet User makes transaction via the wallet User add money in wallet
Add your answer

Q1. It was 1 hour round. This was round with Engineering Technical Head. The questions were around willingness to work, long term / short term goals, high level behavioural questions, cross questions to evalua...read more
Add your answer

Q1. This was HR round, around 20 minutes
Add your answer

Q1. How to build an caching layer for iOS Apps
Ans. 
Building a caching layer for iOS Apps
• Identify the data that needs to be cached

• Choose a caching mechanism (e.g., NSCache, CoreData, SQLite)

• Implement caching logic in the app's data access layer

• Define cache eviction policies to manage memory usage

• Consider using a cache expiration mechanism

• Handle cache invalidation when data changes

• Optimize cache performance by using appropriate data structures
Answered by AI
Add your answer
Q2. How to optimise image rendering for iOS Apps
Ans. 
Optimizing image rendering for iOS Apps involves techniques like image compression, caching, lazy loading, and using the appropriate image formats.
• Use image compression techniques like JPEG or PNG optimization to reduce file size without compromising quality

• Implement caching mechanisms to store and retrieve images locally, reducing network requests

• Utilize lazy loading to load images only when they are needed, improving...read more
Answered by AI
Add your answer
Q3. Tell me about framework types in iOS
Ans. 
There are several types of frameworks in iOS, including system frameworks, third-party frameworks, and custom frameworks.
• System frameworks are provided by Apple and include UIKit, Foundation, and Core Data.

• Third-party frameworks are developed by external developers and can be integrated into iOS apps, such as Alamofire and Firebase.

• Custom frameworks are created by developers for specific project needs and can be reused...read more
Answered by AI
Add your answer

Machine Coding Round

Low level design - ATM design

High level design - Uber

Q1. Director of engineering round
Add your answer
Q2. Motivation to join the company
Add your answer
Q3. Previous roles and responsibilities held
Add your answer

One machine coding round, parking lot question

Q1. Question related to parking lot
Add your answer
Q2. Current project related questions
Add your answer

Q1. High level design
Add your answer
Q2. Yet to appear ......
Add your answer

Q1. Simple question not very hard related to java
Add your answer

Q1. Mostly Tech related questions asked in first round
Add your answer
Q2. Managerial round is the final one
Add your answer

Q1. Explain how javascript works
Ans. 
JavaScript is a high-level, interpreted programming language that is used to make web pages interactive.
• JavaScript is a client-side scripting language that runs in the browser.

• It is used to add interactivity to websites, such as form validation, animations, and dynamic content.

• JavaScript code is executed line by line and can manipulate the HTML and CSS of a webpage.

• It can also communicate with servers to retrieve or se
Answered by AI
Add your answer

Q1. Build a to do app in react
Ans. 
A to do app built in React for managing tasks and deadlines.
• Use React components to create a user interface for adding, editing, and deleting tasks

• Implement state management to keep track of tasks and their completion status

• Utilize local storage or a backend server to persist tasks between sessions
Answered by AI
Add your answer

Any online ideas, ds-algo, medium level

Swift, security framework, api, memory management

Q1. Basic ds-algo nd technical question
Add your answer

Q1. Managerial question
Add your answer