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Resmed Software Engineer Interview Guide

Resmed Software Engineer interview guide: reported rounds, questions and how candidates describe the process.

The 60-second brief

A Software Engineer at Resmed plays a vital role in advancing digital health and medical technology. Resmed is a global leader in cloud-connected medical devices, digital health applications, and software solutions for sleep apnea, COPD, and other chronic conditions. As an engineer here, your code directly impacts millions of patients worldwide by powering cloud platforms, processing real-time health data, and delivering actionable insights to clinicians and patients alike. The software engineering ecosystem at Resmed spans multiple specialized domains. Depending on your team, you might work on backend cloud services in AWS, platform engineering infrastructure, database optimization, or embedded systems integration that interface with connected medical hardware.

This guide is scoped to a Software Engineer candidate at Resmed.

Focus areas

  • Problem Solving
  • Programming Fundamentals
  • AWS (Amazon Web Services)

The Resmed interview process

Resmed candidates report 5 rounds over 4-6 weeks. The stages below are what candidates describe, not a published process.

Automated Screen

Initial automated screening or introductory conversation with a Talent Acquisition Partner.

What to demonstrate

  • Initial automated screening or introductory conversation with a Talent Acquisition Partner
  • Depth in Problem Solving

How to prepare

  • Answer aloud and timed: What are the core pillars of Object-Oriented Programming (OOP), and how do you apply polymorphism in distributed system design?
  • Answer aloud and timed: Explain the key differences between process and thread execution, and how operating systems handle concurrency.

HireVue Assessment

Candidates complete a recorded one-way assessment answering 3–5 pre-recorded video questions.

What to demonstrate

  • Candidates complete a recorded one-way assessment answering 3–5 pre-recorded video questions
  • Depth in Problem Solving

How to prepare

  • Answer aloud and timed: How do database indexes work internally, and what are the trade-offs between clustered and non-clustered indexes in SQL?
  • Answer aloud and timed: What are database transactions, and how do database management systems enforce ACID properties?

Technical Assessment

Candidates may complete an online technical assessment with multiple-choice questions and coding challenges.

What to demonstrate

  • Candidates may complete an online technical assessment with multiple-choice questions and coding challenges
  • Depth in Problem Solving

How to prepare

  • Answer aloud and timed: Explain the concept of dependency injection and how it facilitates unit testing in frameworks like.NET or Spring Boot.
  • Answer aloud and timed: How would you design a distributed data ingestion pipeline that processes daily therapy data from millions of connected medical devices?

Live Technical Panels

Candidates participate in live technical interviews with senior engineers and engineering managers.

What to demonstrate

  • Candidates participate in live technical interviews with senior engineers and engineering managers
  • Depth in Problem Solving

How to prepare

  • Answer aloud and timed: What strategies would you use to maintain data consistency across decoupled microservices without sacrificing system availability?
  • Answer aloud and timed: Explain how you would implement caching using Redis or Memcached to reduce database load in a high-traffic web application.

Managerial Round

Final stage involves interviewing with a managerial or departmental director and an HR Business Partner.

What to demonstrate

  • Final stage involves interviewing with a managerial or departmental director and an HR Business Partner
  • Depth in Problem Solving

How to prepare

  • Answer aloud and timed: How do you design microservices for high availability, fault tolerance, and graceful degradation during regional AWS outages?
  • Answer aloud and timed: What approaches do you take when designing RESTful APIs that need to support backward compatibility across multiple software versions?

Where candidates lose points

Prepare concise 1–2 minute elevator pitches for the key projects on your resume

Interviewers at Resmed consistently ask deep follow-up questions about your personal technical contributions and design decisions.

Align with the Mission

Be prepared to answer why you want to work at Resmed specifically. Demonstrating an interest in medical technology, digital health ecosystems, and patient impact sets candidates apart.

Structure Your Behavioral Answers

Use the STAR method (Situation, Task, Action, Result) to answer behavioral questions. Clearly quantify the outcomes of your work (e.g., improved system throughput by 30%, reduced latency by 150ms).

Questions & practice

Explain the key differences between process and thread execution, and how operating systems handle concurrency

Medium · Core Fundamentals & Object-Oriented Desi

Explain the key differences between process and thread execution, and how operating systems handle concurrency.

Approach

  1. Say what the runtime actually does before reasoning about the code.
  2. Name what is shared across threads and what owns each piece of state.
  3. Identify the window where an invariant is briefly untrue.
  4. Distinguish a value from a reference to it, and say which one you handed out.

Follow-up

  • What happens if two callers reach this at the same time?
  • Where could this allocate more than you expect?

How do you approach setting up automated CI/CD pipelines for automated testing and zero-downtime deployment?

Medium · Technical Project Deep-Dives & Problem S

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?

Implement a algorithm to solve a core data structure problem, such as custom data processing, parsing, or tree

Medium · Technical Project Deep-Dives & Problem S

Implement a algorithm to solve a core data structure problem, such as custom data processing, parsing, or tree traversal.

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 do database indexes work internally, and what are the trade-offs between clustered and non-clustered index

Medium · Core Fundamentals & Object-Oriented Desi

How do database indexes work internally, and what are the trade-offs between clustered and non-clustered indexes in SQL?

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?

Given a specific system requirement, how do you determine whether to use a relational database (SQL) or a NoSQ

Medium · Technical Project Deep-Dives & Problem S

Given a specific system requirement, how do you determine whether to use a relational database (SQL) or a NoSQL data store?

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?

What are the core pillars of Object-Oriented Programming (OOP), and how do you apply polymorphism in distribut

Medium · Core Fundamentals & Object-Oriented Desi

What are the core pillars of Object-Oriented Programming (OOP), and how do you apply polymorphism in distributed system design?

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?

What are database transactions, and how do database management systems enforce ACID properties?

Medium · Core Fundamentals & Object-Oriented Desi

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 the concept of dependency injection and how it facilitates unit testing in frameworks like.NET or Spri

Medium · Core Fundamentals & Object-Oriented Desi

Explain the concept of dependency injection and how it facilitates unit testing in frameworks like.NET or Spring Boot.

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?

How would you design a distributed data ingestion pipeline that processes daily therapy data from millions of

Medium · Cloud Architecture & Systems Design

How would you design a distributed data ingestion pipeline that processes daily therapy data from millions of connected medical devices?

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?

What strategies would you use to maintain data consistency across decoupled microservices without sacrificing

Medium · Cloud Architecture & Systems Design

What strategies would you use to maintain data consistency across decoupled microservices without sacrificing system availability?

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?

Explain how you would implement caching using Redis or Memcached to reduce database load in a high-traffic web

Medium · Cloud Architecture & Systems Design

Explain how you would implement caching using Redis or Memcached to reduce database load in a high-traffic web application.

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 do you design microservices for high availability, fault tolerance, and graceful degradation during region

Medium · Cloud Architecture & Systems Design

How do you design microservices for high availability, fault tolerance, and graceful degradation during regional AWS outages?

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?

What approaches do you take when designing RESTful APIs that need to support backward compatibility across mul

Medium · Cloud Architecture & Systems Design

What approaches do you take when designing RESTful APIs that need to support backward compatibility across multiple software versions?

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?

Walk me through the technical architecture of the most complex software project on your resume. What key trade

Medium · Technical Project Deep-Dives & Problem S

Walk me through the technical architecture of the most complex software project on your resume. What key trade-offs did you make?

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 do you explain complex technical concepts or architectural choices to non-technical stakeholders?

Medium · Behavioral & Leadership Alignment

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?

Describe a situation where you had to debug a critical performance bottleneck in production. How did you ident

Medium · Technical Project Deep-Dives & Problem S

Describe a situation where you had to debug a critical performance bottleneck in production. How did you identify and resolve it?

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 Resmed candidates report.

Day 1 — Map the Resmed loop

  • Write out the reported sequence: Automated Screen, HireVue Assessment, Technical Assessment, Live Technical Panels, Managerial Round.
  • 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 5 reported rounds, with the weakest marked.

Day 2 — Work Problem Solving

  • Spend the session on Problem Solving, which Resmed candidates report being tested on.
  • Write one worked example in Problem Solving and time yourself on it.

Deliverable: One timed worked example in Problem Solving.

Day 3 — Work Programming Fundamentals

  • Spend the session on Programming Fundamentals, which Resmed candidates report being tested on.
  • Write one worked example in Programming Fundamentals and time yourself on it.

Deliverable: One timed worked example in Programming Fundamentals.

Day 4 — Work AWS (Amazon Web Services)

  • Spend the session on AWS (Amazon Web Services), which Resmed candidates report being tested on.
  • Write one worked example in AWS (Amazon Web Services) and time yourself on it.

Deliverable: One timed worked example in AWS (Amazon Web Services).

Day 5 — Answer out loud: Core Fundamentals & Object-Oriented Design

  • Answer aloud, timed: What are the core pillars of Object-Oriented Programming (OOP), and how do you apply polymorphism in distributed system design?
  • Answer aloud, timed: Explain the key differences between process and thread execution, and how operating systems handle concurrency.

Deliverable: Spoken answers to 2 reported Core Fundamentals & Object-Oriented Design question(s), under time.

Day 6 — Answer out loud: Cloud Architecture & Systems Design

  • Answer aloud, timed: How would you design a distributed data ingestion pipeline that processes daily therapy data from millions of connected medical devices?
  • Answer aloud, timed: What strategies would you use to maintain data consistency across decoupled microservices without sacrificing system availability?

Deliverable: Spoken answers to 2 reported Cloud Architecture & Systems Design question(s), under time.

Day 7 — Answer out loud: Technical Project Deep-Dives & Problem Solving

  • Answer aloud, timed: Walk me through the technical architecture of the most complex software project on your resume. What key trade-offs did you make?
  • Answer aloud, timed: Describe a situation where you had to debug a critical performance bottleneck in production. How did you identify and resolve it?

Deliverable: Spoken answers to 2 reported Technical Project Deep-Dives & Problem Solving question(s), under time.

Behavioural preparation

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

Why do you want to work at Resmed, and how does software development in digital health align with your career

Medium · Behavioral & Leadership Alignment

Why do you want to work at Resmed, and how does software development in digital health align with your career goals?

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 time when you had a strong technical disagreement with a teammate or senior engineer. How did you r

Medium · Behavioral & Leadership Alignment

Describe a time when you had a strong technical disagreement with a teammate or senior engineer. How did you resolve it?

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?

Tell me about a project that did not go according to plan. What went wrong, and what key lessons did you take

Medium · Behavioral & Leadership Alignment

Tell me about a project that did not go according to plan. What went wrong, and what key lessons did you take away?

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?

Give an example of a time you demonstrated leadership and innovation within your team to improve a legacy code

Medium · Behavioral & Leadership Alignment

Give an example of a time you demonstrated leadership and innovation within your team to improve a legacy codebase or development process.

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?