Process
The process started with a chat with the hiring manager where I was asked iOS knowledge questions.
This was followed by a coding assignment and then an onsite interview with four rounds.
The iOS knowledge questions covered areas such as:
- Concurrency
- UI
- Memory management
- Data structures and algorithms, etc.
Questions
iOS knowledge questions on:
- Concurrency
- UI
- Memory management
- Data structures
- Algorithms etc.
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Interview Statistics
The following metrics were computed from 1 interview experience for the Slack Tech Lead role in Toronto, Ontario.
Success Rate
0%
Pass Rate
Slack's interview process for their Tech Lead roles in Toronto, Ontario is extremely selective, failing the vast majority of engineers.
Experience Rating
Positive100%
Neutral0%
Negative0%
Candidates reported having very good feelings for Slack's Tech Lead interview process in Toronto, Ontario.
Slack Work Experiences
5.0
Great people and opportunities, but pay is uncompetitive
Senior Software Engineer • Former Employee
New York, NY
August 24, 2026
Pros: Legitimately great people and great opportunities.
Cons: Salesforce means salary bands are not competitive; and they lost a lot of great people.
4.0
Awesome
ML Engineer • Current Employee
London, England
April 1, 2024
Pros: Fantastic team and great culture!
Cons: There is not much in the way of career progression.
5.0
Great place to work!
Director of Engineering • Current Employee
San Francisco, CA
May 25, 2024
Pros: Smart people and an awesome product
Cons: New ELT team that is now fully composed of Salesforce employees.
- 5.0Great people and opportunities, but pay is uncompetitiveSenior Software Engineer • Former EmployeeNew York, NYAugust 24, 2026Pros: Legitimately great people and great opportunities.Cons: Salesforce means salary bands are not competitive; and they lost a lot of great people.
- 4.0AwesomeML Engineer • Current EmployeeLondon, EnglandApril 1, 2024Pros: Fantastic team and great culture!Cons: There is not much in the way of career progression.
- 5.0Great place to work!Director of Engineering • Current EmployeeSan Francisco, CAMay 25, 2024Pros: Smart people and an awesome productCons: New ELT team that is now fully composed of Salesforce employees.
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