Interactive Brokers Quality Assurance Engineer Interview Questions and Answers

DSA round. DP and Gaph

Q1. Java,Springboot,Hibernate,JPA
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3 programs to write in arrays linked lists and trees

Q1. Was asked questions on core Java, spring framework, apis and micro services
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Q1. What expertise will you bring to cme group of you join?
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Q2. Why are you quitting your current company?
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Any online ideas, ds-algo, medium level

Swift, security framework, api, memory management

Q1. Basic ds-algo nd technical question
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Q1. Managerial question
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Q1. Type of Joins, Syntax of Join
Ans. 
Joins are used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Syntax of join: SELECT columns FROM table1 JOIN table2 ON table1.column = table2.column

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id
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Q1. DSA and array manipulation
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Q1. ReactJS features
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Q1. Why did you leave your current company
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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
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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
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Q1. Previous work experiences
Ans. 
I have over 5 years of experience in retail management, including leading teams, managing inventory, and improving customer satisfaction.
• Managed a team of 15 employees at XYZ Retail Store

• Implemented new inventory management system resulting in 20% decrease in stock shortages

• Received 'Employee of the Month' award for exceptional customer service skills
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Q2. Experience in preparing FS and analysis
Ans. 
I have 5 years of experience preparing financial statements and conducting analysis.
• Managed monthly financial statement preparation process

• Performed variance analysis to identify trends and areas for improvement

• Utilized financial software to streamline reporting processes

• Presented findings to senior management for decision-making

• Collaborated with cross-functional teams to ensure accuracy of financial data
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