Process
I recently completed a screening call, followed by a coding interview where I had to write code. The tasks weren’t particularly difficult, but I found myself working more slowly than I’d hoped. I plan to practice to improve my speed.
Questions
How would you improve this code? Please share specific refactors, performance optimizations, and testing strategies you would apply.
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Interview Statistics
The following metrics were computed from 1 interview experience for the Wise Engineer role in London, England.
Success Rate
0%
Pass Rate
Wise's interview process for their Engineer roles in London, England is extremely selective, failing the vast majority of engineers.
Experience Rating
Positive100%
Neutral0%
Negative0%
Candidates reported having very good feelings for Wise's Engineer interview process in London, England.
Wise Work Experiences
2.0
You'll survive – just be prepared
Engineer • Former Employee
July 17, 2025
Pros: - Flexible working hours
- Modern tech stack
Cons: - Low salary
- Unrealistic deadlines & gaslighting
- Limited guidance and support, often framed as a culture of autonomy
5.0
A very nice place to work and to learn
Engineer • Current Employee
London, England, United Kingdom
July 5, 2025
Pros: Awesome place and culture. You can influence product direction a lot, no matter which function you are part of.
Cons: Compensation, especially stocks, might be higher.
1.0
Working, working, working
Engineer • Current Employee
February 10, 2025
Pros: People are nice, work is doable.
Cons: Low salary, not very transparent.
- 2.0You'll survive – just be preparedEngineer • Former EmployeeJuly 17, 2025Pros: - Flexible working hours - Modern tech stackCons: - Low salary - Unrealistic deadlines & gaslighting - Limited guidance and support, often framed as a culture of autonomy
- 5.0A very nice place to work and to learnEngineer • Current EmployeeLondon, England, United KingdomJuly 5, 2025Pros: Awesome place and culture. You can influence product direction a lot, no matter which function you are part of.Cons: Compensation, especially stocks, might be higher.
- 1.0Working, working, workingEngineer • Current EmployeeFebruary 10, 2025Pros: People are nice, work is doable.Cons: Low salary, not very transparent.
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