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Lab49 Senior Python Developer Interview Questions and Answers
Lab49 Senior Python Developer Interview Experiences
1 interview found
Shivang Jha
I applied via Approached by Company and was interviewed in Apr 2023. There were 7 interview rounds.
(1 Question)
- Q1. Moderate to difficult level python and oops based questions in 15 minutes.
(1 Question)
- Q1. Bug fixing and code refactoring
(1 Question)
- Q1. Flask framework based coding and system design. Needed to code up a URL shortener service and some follow up design questions on the same.
(1 Question)
- Q1. Theoretical questions on python, distributed caching like memcached. Asyncio, GIL, threading etc
(1 Question)
- Q1. Techno-managerial round. It was scheduled but never happened.
(1 Question)
- Q1. Written test to assess personality traits.
Interview Preparation Tips
Tl;Dr- They took 1 technical MCQ test, 1 Psychometric test, 3 technical discussions. The results of all these were postive. They scheduled one techno-managerial round but cancelled the round once I joined on time, citing that the manager got held up in a meeting and would reschedule. That reschedule never happened. Total waste of time. I would avoid even thinking about this company.
The recruiting HR reached out through LinkedIn DM.
First round was an MCQ test, to be completed in 15 minutes or so. Difficulty Level - Hard
Next round was a 60 minutes bug fixing and code refactoring round. The interviewer shared a link to some online coding platform where I had to fix some bugs and later needed to make the code more pythonic. This was of easy difficulty. The interviewer was super friendly and cooperative. Got the positive feedback about this round the same day within 1 hour.
The next round was a system design and coding round interview. Had to code a flask framework code to develop url shortening service. I found the difficulty to be moderate and interviewer to be communicative and friendly.
The next round was another python technical round with a senior technical interviewer. Questions were pretty theoretical and the interviewer showcased okay behaviour and seemed disinterested too. Duration- 1 hour. Got a positive feedback for this round though.
Next a techno-managerial round was scheduled. It was termed as stakeholder evaluation. I joined on the scheduled time and then got to know that the interviewer was busy and the call would be rescheduled. The call was never rescheduled and after 1-2 weeks, upon following up with the HR, it was told that the position has been filled internally. Seriously ?😬 Then why bother with so many rounds.
I had moved on to different interviews. After 2-3 months, Lab49 HR comes back and informs that the interview would resume again.
The HR wanted to have a fresh discussion and booked a time slot for the next day. The HR again doesn't join.
After a few days comes back again apologising and citing their busy schedule. Finally after asking a lot of repetitive questions, like the details about the work experience etc, asks to take up a psychometric kind of test. They inform that in early September(which was after 10-15 days) they are going to complete the remaining round of the interview process.
After psychometric test, the feedback is okay but the next round never happened.
This is one of the worst interview experiences I ever had. They kept on dragging the process and killed my 4-5 hours unnecessarily. Thankfully, I had continued with other companies and had got offer there too. I would strongly advise the company to be clear about their hiring plans before scheduling any interview.
Senior Python Developer Jobs at Lab49
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Anonymous
I applied via Approached by Company and was interviewed in May 2024. There were 2 interview rounds.
Flask questions
Sql questions
Python questions
(2 Questions)
- Q1. How to make flask application responsive
- Ans.
To make a Flask application responsive, optimize code, use asynchronous tasks, implement caching, and utilize a CDN.
Optimize code for faster response times
Use asynchronous tasks to handle multiple requests concurrently
Implement caching to store frequently accessed data
Utilize a Content Delivery Network (CDN) for faster content delivery
- Q2. Write mongo query to fetch the data
- Ans.
Use find() method to fetch data from MongoDB
Use db.collection_name.find() to fetch all documents in a collection
Add criteria inside find() to filter data, like db.collection_name.find({ key: value })
Use projection to specify which fields to include or exclude, like db.collection_name.find({}, { field1: 1, field2: 0 })
Skills evaluated in this interview
(2 Questions)
- Q1. Paas vs Saas, data structures in python, decorators with written example, reverse a sentence of string in optimized code
- Q2. Explain about cloud model types for saas vs paas
- Ans.
SaaS and PaaS are cloud model types with different levels of service and control.
SaaS (Software as a Service) provides software applications over the internet, with the provider managing everything from infrastructure to maintenance.
PaaS (Platform as a Service) offers a platform allowing customers to develop, run, and manage applications without worrying about the underlying infrastructure.
SaaS is more user-friendly an...
Interview Preparation Tips
Skills evaluated in this interview
Online codility test
(1 Question)
- Q1. Technical one to one interview
Selected
I applied via Approached by Company and was interviewed before Aug 2023. There was 1 interview round.
(3 Questions)
- Q1. List based manipulation
- Q2. Dictionaries based
- Q3. Repetitive words or elements in list
- Ans.
Identifying and removing repetitive words or elements in a list.
Iterate through the list and keep track of unique elements
Use a set to efficiently remove duplicates
Consider using list comprehension to filter out repetitive elements
Interview Preparation Tips
Selected
I was interviewed in Dec 2024.
(5 Questions)
- Q1. Introduction about me any question
- Ans.
I am chandana i am bca graduated
- Q2. About job bases
- Ans.
How to developed a skill to improve over skills
- Q3. Salary based question
- Ans.
I am fresher to 2 to 4
- Q4. How to completed
- Q5. Job description
Interview Preparation Tips
I applied via Company Website and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. What is a Python program that can be used to determine the best price for selling stocks?
- Q2. Can you write a Python program to determine whether two given words are anagrams of each other without using built-in functions?
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Aug 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Create new list from the provided list but the order should be shuffled and no duplicate element should be removed
- Ans.
Create a new list with shuffled order and no duplicate elements.
Use the random.shuffle() function to shuffle the list
Use a set to keep track of elements already added to the new list to avoid duplicates
Convert the set back to a list to maintain the order of elements
- Q2. Architecture of existing application
- Ans.
The existing application follows a microservices architecture with separate components for different functionalities.
The application is divided into multiple services that communicate with each other through APIs.
Each service is responsible for a specific task or functionality, promoting modularity and scalability.
Examples of microservices in the architecture include user authentication service, payment processing serv
(2 Questions)
- Q1. Why do you want to join
- Ans.
I am passionate about Python development and excited about the innovative projects your company is working on.
Passionate about Python development
Excited about innovative projects at company
Seeking growth and learning opportunities
- Q2. Where do you see yourself in 5 years
- Ans.
In 5 years, I see myself as a senior Python developer leading a team of developers on innovative projects.
Continuing to enhance my Python skills and staying updated on new technologies
Taking on more leadership responsibilities and mentoring junior developers
Contributing to the success of the company through my technical expertise
Skills evaluated in this interview
(2 Questions)
- Q1. List & tuple diff
- Q2. Pickling & unpickling
Interview Preparation Tips
Selected
Avg aptitude questions
2 easy coding questions
(2 Questions)
- Q1. Array question in python
- Q2. SQL query based on condition
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