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Backend Engineer Interview Experience

May 23, 2026
Neutral ExperienceNo Offer

Process

I applied through a recruiter. The process took two months.

The process spanned over two months. The recruiter was friendly and helpful, as did the senior engineer whom I met for the technical debrief. However, that debrief was focused around UX, and very little concern was expressed for backend architecture. Using vector search for similarity over natural language was considered overkill. Overall, I felt the discussion and concessions made during that exchange didn't go into considerations at all, and that the decision was kind of made up already. If you give it a try, prepare yourself as a product engineer with data analyst skills, not just a senior backend. The assignment is more about a showreel rather than systems design.

Questions

What would be necessary to deploy your application to production?

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Interview Statistics

The following metrics were computed from 9 interview experiences for the Pennylane Backend Engineer role.

Success Rate

44%
Pass Rate

Pennylane's interview process for their Backend Engineer roles is fairly selective, failing a large portion of engineers who go through it.

Experience Rating

Positive56%
Neutral11%
Negative33%

Candidates reported having good feelings for Pennylane's Backend Engineer interview process.

Pennylane Work Experiences