
Aggregated from 2 candidate experiences for ALL.
Detect maintains a rigorous, multi-stage interview process that balances core algorithmic proficiency with domain-specific technical expertise. Candidates should be prepared for a combination of standard data structure challenges, deep-dives into framework-specific internals, and high-level architectural system design discussions.
The candidate described the interview process as typical but expressed a negative overall experience due to the repetitive nature of the interviews over a long duration.
The interview process spanned several months and involved multiple rounds. The candidate noted that the discussions were repetitive and covered both technical topics and company culture.
What do you like to do outside of work
The candidate successfully cleared three rounds of interviews for an SDE-2 position and received an offer. The process was balanced between technical problem solving, domain-specific expertise, and system design.
The round focused on data structures, algorithms, and a discussion of previous project work.
Merge intervals
Flatten a list
This round assessed in-depth knowledge of Flutter framework concepts, state management, and development best practices.
What is lazy loading and its application in projects?
How to use the null-check operator in Flutter?
Explain the widget lifecycle in Flutter.
How does the widget tree work and how to optimize it?
What is the Flutter inspector and how to use it?
What state management techniques are used and why BLoC?
Explain tree shaking and its benefits.
The final round involved a high-level design discussion for a photo storage service, focusing on scalability, fault tolerance, and consistency.
Design the high-level architecture of Google Photos.
How to design the photo upload mechanism?
How to handle network issues during upload and ensure resume capability?
How to track upload status?
How to synchronize updates across multiple devices?
How to ensure cross-device consistency?