⌘ + K

Vivek Saliya

25mcaviv034@ldce.ac.in

Your account

Explore

Interview experiences from students. For students.

preprence is an independent student platform and is not affiliated with or endorsed by any of the companies mentioned on this website.

Found a bug or have a suggestion? Reach out on LinkedIn or Email.

HomeInterview experiencesKody Technolab

Kody Technolab

selected

Machine Learning Engineer

Daksh Prajapati

|August 2026

MCAClass of 2027

selected

Interview process

Coding

60 min|medium

Interview rounds (detailed)

Coding

Difficulty: medium
Duration: 60 minutes

Questions asked

Merge Intervals

Problem: Given intervals, merge those that overlap.

Think: Sort by starting value → compare current with previous → merge if they overlap.

Pattern: "Sorting + Intervals" Complexity: "O(n log n)"

Published on August 25, 2026

Technical

40 min|medium

Trapping Rain Water

Problem: Find how much water can be trapped between bars.

Think: Water depends on the left and right boundaries.

Approach: Use two pointers with left/right maximum heights.

Pattern: "Two Pointers" Complexity: "O(n)" time, "O(1)" space

Boat / People Weight

Problem: Boat carries maximum 2 people and has a weight limit. Find minimum boats.

Think: Sort weights → take heaviest + lightest. If they fit, put them together; otherwise, heaviest goes alone.

Pattern: "Greedy + Two Pointers" Complexity: "O(n log n)"

People Sitting in a Circle

Problem: "n" people sit in a circle and every "k-th" person is eliminated. Find the survivor.

Think: This is the Josephus Problem.

Pattern: "Josephus / Recurrence" Complexity: "O(n)"

Leaders in Array

Problem: Find elements greater than all elements on their right.

Example:

"[16,17,4,5,8,2] → [17,8,2]"

Think: Start from the right and maintain the maximum seen so far.

Pattern: "Right-to-Left + Running Maximum" Complexity: "O(n)"

Technical

Difficulty: medium
Duration: 40 minutes

Questions asked

Tell Me About Yourself

Prepare a 60–90 second introduction:

Education
Skills
Projects
Experience
Target role

Python Basics

Prepare:

List vs Tuple vs Dictionary
Mutable vs Immutable
"==" vs "is"
"None" vs "False"
"*args", "**kwargs"
List comprehension
Lambda
Exception handling

Output questions: Be ready to trace small Python code snippets.

Dictionary

Know valid dictionary keys:

"int", "string", "tuple" "list", "dict", "set"

Reason: Keys must be hashable.

Four concepts:

Encapsulation
Inheritance
Polymorphism
Abstraction

Also prepare: class/object, constructor, "self", overriding, overloading.

Important: Python doesn't support traditional method overloading like Java/C++.

Resume-Based Questions

Everything on your resume can be questioned.

Postman: What is it? Why use it? API testing?

Full Stack: What is frontend/backend? REST API? Database? How do they communicate?

Projects: Why this technology? Your contribution? Challenges?

ML Basics

Prepare:

Supervised vs Unsupervised
Classification vs Regression
Overfitting/Underfitting
Feature Engineering
Missing Values
Accuracy, Precision, Recall, F1
Confusion Matrix
Imbalanced Data

Logical Reasoning

Example:

11 players, jersey numbers 1–11. 10 players are out. Which remains?

Don't assume—identify which player was not eliminated.

Real ML Scenario

Accuracy = 88%. Add a new column → 95%. Accept?

No, not immediately.

Check:

Data leakage
Preprocessing
Test-set contamination
Performance on unseen data
Other metrics

Remember: Higher accuracy ≠ automatically better model.