HCL interview experience

This is a part of my job interviews series.

👉🏼 Background

• Years of Experience: 4.5 years
• Relevant Python experience: 2 years
• Year: August 2016
• Campus:
• Position: Python developer
• Company: HCL Technologies Ltd.

👉🏼 Interview discussions

☝🏼First phase

via GIPHY

It was a pen paper-based exam, no computer was there. The discussion was more focused on solving RegEx-based problems.

1. Regex for credit card number detection
   • You can check this SO question for answers.
2. Real-life use cases of decorator
   • Provided example of login_required decorator in Django
3. Reversal of a list not using split or any function
   • Explained the following example

     my_list = ['a', 'b', 'c']
     my_reversed_list = my_list[::-1]
     

4. IP address validation using regex
   • You can check out this SO question for answers.
5. Code to find out how many vowels are there in a string
   • You can check this SO answer.
6. Example of a decorator function
   • Written a timer decorator as mentioned here on GeekforGeeks website.
   • You can checkout codetiming from real-python.

👉🏼 Result

via GIPHY

🤔Analysis

• It was a walk-in and many candidates were there, more than 50.
• The interview process was not well structured and could have been improved.
• I did not expect the discussions will be so much concentrated on RegEx, though I had the basic knowledge of RegEx I was not able to come up with solutions at that time.

I have appeared in 20+ interviews so far. You can check out my job interview series for the rest of the interviews experiences.

Let me know if you have any further questions. Thank You 🙏🏼

• Image source: Dealstreetasia