CME Group Senior Software Engineer Interview Questions and Answers

Q1. About Java 8 concepts
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Q2. Spring boot questions
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Opps Java preferred and sql related question.

Q1. Basic questions
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Basic software development questions assess fundamental programming knowledge and problem-solving skills.
• Understand core programming concepts like variables, loops, and functions.

• Familiarity with data structures such as arrays, lists, and dictionaries.

• Knowledge of algorithms, including sorting and searching techniques.

• Experience with version control systems like Git for collaboration.

• Ability to debug code and troublesh...read more
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Q2. Future goals and plans
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Q1. Hasmaps based questions
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Q2. What is the method to print date and time using string manipulation?
Ans. 
Printing date and time using string manipulation involves formatting date objects into readable strings.
• Use built-in date libraries (e.g., JavaScript's Date object) to get current date and time.

• Convert date to string using methods like toString(), toLocaleString(), or custom formatting.

• Example in JavaScript: const now = new Date(); const formattedDate = now.toLocaleString();

• In Python, use strftime: from datetime import...read more
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Q1. Tell me about yourself
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Q2. Por==roject role?
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In a project role, I contribute to software development, collaborating with teams to deliver high-quality solutions on time.
• Collaborated with cross-functional teams to define project requirements and scope.

• Led the development of a feature that improved user experience by 30%.

• Participated in code reviews to ensure code quality and adherence to best practices.

• Utilized Agile methodologies to manage project timelines and d...read more
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Round duration - 30 minutes
Round difficulty - Easy

Basic questioning about my work experiences, things I have developed and created, my work experience(internships). The challenges which I have faced and how I overcame them. Basic questions about some android concepts

Q1. What puzzles were asked during the interview, and can you describe the projects you discussed?
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Round duration - 45 minutes
Round difficulty - Medium

The interviewer was very friendly and asked about various things and tried to judge my understanding of the projects and how deep I know about the concepts I have implemented in my projects

Q1. RxJava
RxJava
Ans. 
RxJava is a popular library for composing asynchronous and event-based programs using observable sequences.
• RxJava provides a functional API for working with asynchronous data streams.

• It uses Observables to emit items and notify subscribers.

• Operators can be used to transform, filter, and combine these streams of data.

• Schedulers are used to control the threading behavior of these operations.

• Example: Creating an Observabl...read more
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Round duration - 40 minutes
Round difficulty - Medium

This was a system design round

Q1. Can you explain the fragment lifecycle in Android system design?
Ans. 
Fragment lifecycle in Android involves various states and methods for managing UI components.
• Fragments have several lifecycle states such as created, started, resumed, paused, stopped, and destroyed.

• Methods like onCreate(), onCreateView(), onResume(), onPause(), onStop(), onDestroy() are used to manage fragment lifecycle.

• Fragment lifecycle is closely tied to the hosting Activity's lifecycle.

• Example: When a fragment is ...read more
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Solve a system design problem in 1 hour

Q1. Search word in a file
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Q2. Design elevator system
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Q1. Design A ticketinf system.
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