Performance Engineer - Open Source at Canonical · Remote (Anywhere)
Everything on this page is labelled by where it comes from: questions candidates reported on JobRipe, JobRipe's own preparation guide, and the job ad itself. Nothing here is made up about the company.
Read from this job's ad: what it asks for, so you can prepare one real example for each.
Go
A time you used Go: the problem, what you did yourself, and what happened.
From skills the ad mentions
Python
A time you used Python: the problem, what you did yourself, and what happened.
From skills the ad mentions
C++
A time you used C++: the problem, what you did yourself, and what happened.
From skills the ad mentions
Education
Your studies or training, or the equivalent experience if the ad allows it.
The ad says: “Undergraduate degree in Computer Science, Mathematics or Physics”
From the ad's requirements
Exceptional academic track record from both high school and university
An example from your own work that shows this.
From the ad's requirements
Demonstrable personal initiatives to measure and improve performance, efficiency and correctness in code
An example from your own work that shows this.
From the ad's requirements
Confidence to respectfully speak up, exchange feedback, and share ideas without hesitation
An example from your own work that shows this.
From the ad's requirements
Leadership and commitment to skills development and mentorship
An example from your own work that shows this.
From the ad's requirements
Passion for technology evidenced by personal projects and initiatives
An example from your own work that shows this.
From the ad's requirements
The work ethic and confidence to shine alongside motivated colleagues
An example from your own work that shows this.
From the ad's requirements
Candidate reports: questions verified applicants typed in their interview reviews on JobRipe, shown as written.
No candidate has shared interview questions for Canonical on JobRipe yet. Use the job ad and our guide below.
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Our editorial preparation guide: typical questions for the field, not reports from candidates.
Why they ask: Design judgement.
How to answer: Draw it, name the trade-offs, say what you learned.
Why they ask: Debugging method.
How to answer: Measure first, then caching, queries, indexes, async work.
Why they ask: Quality habits.
How to answer: Unit, integration, and what you would not test.
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Why they ask: Go is named in the posting.
How to answer: One concrete project, one honest lesson.
Why they ask: Python is named in the posting.
How to answer: One concrete project, one honest lesson.
Why they ask: Opener to see how you frame your story.
How to answer: Two minutes: current role, one achievement that matches this job, why this company now.
Why they ask: Checks ownership and depth.
How to answer: Use situation, action, result. Quantify the result.
Why they ask: Tests accountability and learning.
How to answer: Pick a real failure, own your part, show the fix and what changed afterwards.
Questions to ask them