Process
I applied through a recruiter. The process took four weeks.
- Initial introductory call to explain the process and verify that expectations align.
- Take-home technical test (around three hours) followed by a technical debrief on the test and additional questions. The subject matter was explored in depth and went quite far.
- Finally, a culture fit interview with one of the co-founders.
Questions
What is the default string indexing algorithm in a PostgreSQL database, and what other higher-performance algorithm can be used to have an index usable in a query with a WHERE LIKE clause?
This content was translated from French
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Interview Statistics
The following metrics were computed from 22 interview experiences for the Pennylane Software Engineer role.
Success Rate
50%
Pass Rate
Pennylane's interview process for their Software Engineer roles is fairly selective, failing a large portion of engineers who go through it.
Experience Rating
Positive82%
Neutral0%
Negative18%
Candidates reported having very good feelings for Pennylane's Software Engineer interview process.
Pennylane Work Experiences
5.0
Great place to work!
Software Engineer • Current Employee
January 14, 2023
Pros: Company culture is fantastic. Founders come from Booking and they try to apply Booking culture and values @ Pennylane. That created a special treat for employees. You're really appreciated and respected in each way. Good work life balance. No overtime if you don't really insist :) A chance to work with really good people and learn from senior engineers a lot. Gatherings at Paris 5-6 times per year They treat remote people the same as employees from France.
Cons: Tech staff grew from 50 to 100 people in 2022 so now the product is quite huge and there are a lot of new people, but this can always be an advantage since it offers learning opportunities.
3.0
Remote work option but lacking quality assurance
Software Engineer • Current Employee
Porto, Oporto
October 2, 2026
Pros: - remote work
- friendly work envirorment
Cons: - There was a lack of QA and pressure to build.
4.0
Software engineer
Software Engineer • Former Employee
Paris
December 8, 2023
Pros: Great culture tech International employees Great product culture
Cons: minor product implication for softwar eengineers poor work/life balance
- 5.0Great place to work!Software Engineer • Current EmployeeJanuary 14, 2023Pros: Company culture is fantastic. Founders come from Booking and they try to apply Booking culture and values @ Pennylane. That created a special treat for employees. You're really appreciated and respected in each way. Good work life balance. No overtime if you don't really insist :) A chance to work with really good people and learn from senior engineers a lot. Gatherings at Paris 5-6 times per year They treat remote people the same as employees from France.Cons: Tech staff grew from 50 to 100 people in 2022 so now the product is quite huge and there are a lot of new people, but this can always be an advantage since it offers learning opportunities.
- 3.0Remote work option but lacking quality assuranceSoftware Engineer • Current EmployeePorto, OportoOctober 2, 2026Pros: - remote work - friendly work envirormentCons: - There was a lack of QA and pressure to build.
- 4.0Software engineerSoftware Engineer • Former EmployeeParisDecember 8, 2023Pros: Great culture tech International employees Great product cultureCons: minor product implication for softwar eengineers poor work/life balance
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