Zepto Software Development Engineer II Interview Questions and Answers

Q1. Given 2 large numeric comma seperated strings. You need to calculate their sum along with maintaining the correct position of commas. Example Test Case - s1 - "123,456,788" s2 - "1" output - "123,456,789"...read more
Ans. 
Calculate sum of large numeric comma separated strings without converting to integers.
• Split the strings by comma to get individual numbers

• Iterate from right to left and add digits, carrying over if necessary

• Maintain correct position of commas in the output string
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Q1. It was Low Level Design Round. Question - Design a file system just like google drive. Functional Requirements - i) It should have functionality of file uploading, downloading, sharing. ii) Need to handle...read more
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Q1. It was Hiring Manager round and it tested my knowledge over HLD & LLD. Tell me about the most challenging project which you did till now. Follow Up Questions - i) Draw HLD & write LLD of it. ii) How muc...read more
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Q2. What all initiatives I have taken in my career?
Ans. 
I have taken various initiatives in my career to improve processes and drive innovation.
• Led a team to implement a new agile development process, resulting in faster delivery of products

• Introduced automated testing tools to improve software quality and reduce manual effort

• Organized coding workshops for junior developers to enhance their skills and knowledge

• Initiated a mentorship program to help new hires acclimate to th
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Q3. How many microservices do I own & at what scale they handle the traffic?
Ans. 
I own 5 microservices that handle traffic at a scale of 10,000 requests per minute.
• I own 5 microservices

• They handle traffic at a scale of 10,000 requests per minute
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Q4. Tell me the incidents where you went beyond your limits for the work
Ans. 
I have consistently gone above and beyond in my work by taking on additional projects and working extra hours when needed.
• Volunteering to lead a high-priority project that required long hours and weekend work

• Staying late to troubleshoot and resolve a critical issue before a major deadline

• Taking on extra tasks to help a team member who was overwhelmed with their workload
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Q5. Why are you leaving your current organization?
Ans. 
Seeking new challenges and growth opportunities.
• Desire for career advancement

• Looking for new challenges

• Seeking better work-life balance

• Company restructuring or changes in management
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Q1. Bar raiser took, LLD - Design bookmyshow, did well, completed the entire design in given time, the interviewer was satisfied.
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Q1. Interview Vector took - HLD - Design Online booker reader website, Went well, did the entire design, from data base schema design to API design to the entire HLD diagram, answered all the questions and cro...read more
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Q1: leetcode medium q2 leetcode medium both array based

Q1. Design lld for Zepto system
Ans. 
Design the low level design for Zepto system
• Identify the components of the Zepto system such as user interface, database, backend services, etc.

• Define the interactions between the components and how data flows through the system

• Consider scalability, performance, and security aspects in the design

• Use appropriate design patterns and technologies to implement the system

• Include error handling and logging mechanisms in the
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Q2. Questions based on concurrency data security
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1. Frogs Jump Question: FInd the minimum no of hops to reach the last index
2. Missing Element in a sorted array. If size is n. It contains elements from 1 to n+1. Do it in logn