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MSN Group of Companies Software Engineer Interview Guide

MSN Group of Companies Software Engineer interview guide: reported rounds, questions and how candidates describe the process.

The 60-second brief

As a Software Engineer at MSN Group of Companies, you play a pivotal role in designing, developing, and maintaining software applications that drive the company’s core products and services. This position is crucial for ensuring that the software solutions not only meet functional requirements but also adhere to high standards of performance, scalability, and security. Your contributions directly impact user experience and operational efficiency, making you a key player in the company's success. In this role, you will collaborate with cross-functional teams, including product managers, designers, and other engineers, to tackle complex challenges and deliver innovative solutions. Whether you're working on backend systems that power essential business functions or frontend applications that enhance user engagement, the work you do will be both meaningful and impactful.

This guide is scoped to a Software Engineer candidate at MSN Group of Companies.

Focus areas

  • Project Discussion
  • Technical Project Storytelling
  • Interview Communication (English)

The MSN Group of Companies interview process

MSN Group of Companies candidates report 4 rounds over 3-5 weeks. The stages below are what candidates describe, not a published process.

Written Assessment

Candidates will be tested on their technical skills and problem-solving abilities.

What to demonstrate

  • Candidates will be tested on their technical skills and problem-solving abilities
  • Depth in Project Discussion

How to prepare

  • Answer aloud and timed: Explain the difference between object-oriented and functional programming.
  • Answer aloud and timed: What are the key principles of RESTful API design?

Technical Round

Discussion of previous projects and coding experiences with technical interviewers.

What to demonstrate

  • Discussion of previous projects and coding experiences with technical interviewers
  • Depth in Project Discussion

How to prepare

  • Answer aloud and timed: Describe how you would optimize a slow-running SQL query.
  • Answer aloud and timed: What is the significance of version control systems in software development?

HR Interview

Exploration of career aspirations and cultural fit within the company.

What to demonstrate

  • Exploration of career aspirations and cultural fit within the company
  • Depth in Project Discussion

How to prepare

  • Answer aloud and timed: Can you explain the concept of dependency injection?
  • Answer aloud and timed: How would you approach debugging a complex application?

Salary Discussion

Final discussions regarding compensation and benefits.

What to demonstrate

  • Final discussions regarding compensation and benefits
  • Depth in Project Discussion

How to prepare

  • Answer aloud and timed: Describe a situation where you had to balance competing project deadlines. How did you prioritize your tasks?
  • Answer aloud and timed: If given a system to improve, what metrics would you analyze first and why?

Where candidates lose points

Research the Company

Understanding the mission and values of MSN Group of Companies will help you articulate how you align with them during interviews.

Practice Behavioral Questions

Prepare to discuss real-life scenarios that demonstrate your skills and experiences, using the STAR method for structured responses.

Prepare Questions for Interviewers

Always have thoughtful questions ready for your interviewers to show your interest in the role and the company.

Stay Calm and Confident

Interviews can be stressful, but maintaining a calm demeanor and confidence in your abilities will help you perform your best.

Questions & practice

Write a function to reverse a linked list.

Medium · Coding / Algorithms

Approach

  1. Restate the input: its shape, its size, and what is guaranteed about it.
  2. Name the brute-force solution and its complexity before improving on it.
  3. Choose the data structure from the access pattern, not from familiarity.
  4. State the target complexity and say which constraint rules the naive version out.

Follow-up

  • How does this change if the input no longer fits in memory?
  • What is the worst case, and how likely is it on real data?

How would you implement a binary search algorithm?

Medium · Coding / Algorithms

Approach

  1. Restate the input: its shape, its size, and what is guaranteed about it.
  2. Name the brute-force solution and its complexity before improving on it.
  3. Choose the data structure from the access pattern, not from familiarity.
  4. State the target complexity and say which constraint rules the naive version out.

Follow-up

  • How does this change if the input no longer fits in memory?
  • What is the worst case, and how likely is it on real data?

Can you solve a problem using dynamic programming?

Medium · Coding / Algorithms

Approach

  1. Restate the input: its shape, its size, and what is guaranteed about it.
  2. Name the brute-force solution and its complexity before improving on it.
  3. Choose the data structure from the access pattern, not from familiarity.
  4. State the target complexity and say which constraint rules the naive version out.

Follow-up

  • How does this change if the input no longer fits in memory?
  • What is the worst case, and how likely is it on real data?

Describe how you would optimize a slow-running SQL query.

Medium · Technical / Domain Questions

Approach

  1. Name the grain you start from and join outward from it.
  2. Check whether any join is one-to-many before aggregating, or the sums inflate.
  3. Say which index the query would use, and what makes it unusable.
  4. Handle the rows that do not match: that is usually the actual question.

Follow-up

  • How does the query change if that join becomes one-to-many?
  • What happens to this when the table is ten times larger?

Write a SQL query to find the top 10 highest-paid employees in a database.

Medium · Coding / Algorithms

Approach

  1. Name the grain you start from and join outward from it.
  2. Check whether any join is one-to-many before aggregating, or the sums inflate.
  3. Say which index the query would use, and what makes it unusable.
  4. Handle the rows that do not match: that is usually the actual question.

Follow-up

  • How does the query change if that join becomes one-to-many?
  • What happens to this when the table is ten times larger?

Explain the difference between object-oriented and functional programming.

Medium · Technical / Domain Questions

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

What are the key principles of RESTful API design?

Medium · Technical / Domain Questions

Approach

  1. Say who the caller is and what they do when the call fails halfway.
  2. Define the identity of a request so a retry cannot double-apply it.
  3. Separate accepted, pending, failed and confirmed; they are different facts.
  4. Design the error taxonomy before the success shape; callers branch on it.

Follow-up

  • What happens if the caller retries after a timeout?
  • How does a client discover it is on an old version of this contract?

What is the significance of version control systems in software development?

Medium · Technical / Domain Questions

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

Can you explain the concept of dependency injection?

Medium · Technical / Domain Questions

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

Describe a situation where you had to balance competing project deadlines. How did you prioritize your tasks?

Medium · Problem-Solving / Case Studies

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

If given a system to improve, what metrics would you analyze first and why?

Medium · Problem-Solving / Case Studies

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

Explain how you would handle an unexpected bug that arises just before a product launch.

Medium · Problem-Solving / Case Studies

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

Describe a challenging technical problem you solved in the past.

Medium · Problem-Solving / Case Studies

Approach

  1. Clarify what is being asked and what a complete answer contains.
  2. State your assumptions explicitly before working the problem.
  3. Say what you would check first and why it is the highest-information step.
  4. Work from the requirement backwards to the design.

Follow-up

  • What assumption would you test first?
  • How would you know your answer was wrong?

Explain how you would design a system to handle real-time notifications.

Medium · Coding / Algorithms

Approach

  1. Fix the scope first: who calls this, how often, and what they do when it fails.
  2. Name the read and write paths separately; they rarely have the same bottleneck.
  3. Choose a partition key and say what query it makes expensive.
  4. State the consistency you need, and where you are willing to be stale.

Follow-up

  • What breaks first when traffic grows ten times?
  • How does this behave when that dependency is down for an hour?

How would you approach debugging a complex application?

Medium · Problem-Solving / Case Studies

Approach

  1. Establish what changed and when, before forming any theory.
  2. Pick a bisection that eliminates candidates whichever way it turns out.
  3. Check the instrumentation before believing the symptom.
  4. Separate the trigger from the cause; the deploy is rarely the bug.

Follow-up

  • What would you look at first, and what would it rule out?
  • How would you tell a cause from a coincidence here?

Suggested practice checklist

Built from the rounds and topics MSN Group of Companies candidates report.

Day 1 — Map the MSN Group of Companies loop

  • Write out the reported sequence: Written Assessment, Technical Round, HR Interview, Salary Discussion.
  • For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.

Deliverable: A one-page map of the 4 reported rounds, with the weakest marked.

Day 2 — Work Project Discussion

  • Spend the session on Project Discussion, which MSN Group of Companies candidates report being tested on.
  • Write one worked example in Project Discussion and time yourself on it.

Deliverable: One timed worked example in Project Discussion.

Day 3 — Work Technical Project Storytelling

  • Spend the session on Technical Project Storytelling, which MSN Group of Companies candidates report being tested on.
  • Write one worked example in Technical Project Storytelling and time yourself on it.

Deliverable: One timed worked example in Technical Project Storytelling.

Day 4 — Work Interview Communication (English)

  • Spend the session on Interview Communication (English), which MSN Group of Companies candidates report being tested on.
  • Write one worked example in Interview Communication (English) and time yourself on it.

Deliverable: One timed worked example in Interview Communication (English).

Day 5 — Answer out loud: Technical / Domain Questions

  • Answer aloud, timed: Explain the difference between object-oriented and functional programming.
  • Answer aloud, timed: What are the key principles of RESTful API design?

Deliverable: Spoken answers to 2 reported Technical / Domain Questions question(s), under time.

Day 6 — Answer out loud: Problem-Solving / Case Studies

  • Answer aloud, timed: How would you approach debugging a complex application?
  • Answer aloud, timed: Describe a situation where you had to balance competing project deadlines. How did you prioritize your tasks?

Deliverable: Spoken answers to 2 reported Problem-Solving / Case Studies question(s), under time.

Day 7 — Answer out loud: Behavioral / Leadership

  • Answer aloud, timed: Tell me about a time you had a conflict with a team member. How did you resolve it?
  • Answer aloud, timed: What does collaboration mean to you, and how do you foster it in a team setting?

Deliverable: Spoken answers to 2 reported Behavioral / Leadership question(s), under time.

Behavioural preparation

Behavioural rounds judge the decision you made and what it cost.

Tell me about a time you had a conflict with a team member. How did you resolve it?

Medium · Behavioral / Leadership

Approach

  1. Pick a story where you made the decision, not one where you watched it.
  2. State the situation in two sentences and spend the rest on the reasoning.
  3. Give the blast radius: what could have broken, and what you measured.
  4. Name the disagreement and how you resolved it with evidence.

Follow-up

  • What would you do differently if you ran that again?
  • How did you know your change caused the improvement?

What does collaboration mean to you, and how do you foster it in a team setting?

Medium · Behavioral / Leadership

Approach

  1. Pick a story where you made the decision, not one where you watched it.
  2. State the situation in two sentences and spend the rest on the reasoning.
  3. Give the blast radius: what could have broken, and what you measured.
  4. Name the disagreement and how you resolved it with evidence.

Follow-up

  • What would you do differently if you ran that again?
  • How did you know your change caused the improvement?

Describe a project where you took the lead. What were the challenges, and what was the outcome?

Medium · Behavioral / Leadership

Approach

  1. Pick a story where you made the decision, not one where you watched it.
  2. State the situation in two sentences and spend the rest on the reasoning.
  3. Give the blast radius: what could have broken, and what you measured.
  4. Name the disagreement and how you resolved it with evidence.

Follow-up

  • What would you do differently if you ran that again?
  • How did you know your change caused the improvement?

How do you ensure that you stay updated with technology trends and advancements?

Medium · Behavioral / Leadership

Approach

  1. Pick a story where you made the decision, not one where you watched it.
  2. State the situation in two sentences and spend the rest on the reasoning.
  3. Give the blast radius: what could have broken, and what you measured.
  4. Name the disagreement and how you resolved it with evidence.

Follow-up

  • What would you do differently if you ran that again?
  • How did you know your change caused the improvement?

What motivates you to deliver your best work?

Medium · Behavioral / Leadership

Approach

  1. Pick a story where you made the decision, not one where you watched it.
  2. State the situation in two sentences and spend the rest on the reasoning.
  3. Give the blast radius: what could have broken, and what you measured.
  4. Name the disagreement and how you resolved it with evidence.

Follow-up

  • What would you do differently if you ran that again?
  • How did you know your change caused the improvement?