capitalone | Software Engineer | Interview Experience
Interview Date: Not specified
Result: Not specified
Difficulty: Not specified
Interview Process
The total time from sending the Online Assessment (OA) to completion is 10 days, with email reminders every few days. The OA consists of 20 cases, with a total score of 1200 points—300 points for each question. If you fail the OA, you will be frozen for half a year.
The interview is conducted on the CodeSignal platform, which requires a camera, microphone, and full screen sharing. Although it states that multiple screens are not allowed, it does not actually record or detect other screens. Candidates should prepare to upload a driver’s license for identity verification; using a phone shot of the ID is recommended, as handheld camera shots may not be recognized. This identity check does not count against the examination time, but it’s advisable to allocate time for it.
Technical Questions
- String: Find the triplet in the string that has the same first digit regardless of case (e.g., axA).
- Array: Put the numbers from a one-column array into a two-column array based on specific rules regarding ties and order.
- Greedy: Start with a Vivo cell phone with no power and zero battery, and determine how many batteries are needed to satisfy two hours of talk time, given constraints on battery usage and charging.
- Dynamic Programming: Ask for the minimum number of operations to adjust the heights of floors, modifying only one floor per operation.
Tips & Insights
The practice questions provided by the Technical Assessment (TA) can be time-consuming to read. Although there is a limited time of 70 minutes to complete 4 questions, the chances of encountering the same questions again are low. Candidates should focus on understanding the problem requirements quickly to manage their time effectively.