AI Interview Coach

Live Interview Simulation

Conversational AI interviewer with timer and real-time session

interviewai.codelab.sh/session

🤖

Alex — AI Technical Interviewer

Senior SWE · Google · 12 years experience

Alex

Let's start with a classic. Given an array of integers, find the two numbers that sum to a target value. Walk me through your thought process before you code.

You

My first instinct is a brute-force O(n²) with two loops, but we can do better. I'd use a hash map to store complements as I iterate — that brings it to O(n) time and O(n) space.

Alex

Good — that's the optimal approach. Can you think of any edge cases we should handle before writing the code?

Duplicates, empty array, no solution exists...

Instant Feedback Report

Dimensional scoring and actionable improvement notes after each session

interviewai.codelab.sh/feedback

7.4

Overall Score / 10

Problem Solving8.5

Communication7.0

Code Quality7.8

Edge Cases5.5

AI Interviewer Feedback

✅Strong algorithmic intuition — immediately jumped to the optimal hash map approach without prompting.

✅Good use of Big-O notation to justify the approach. Interviewer noticed the trade-off discussion.

⚠️Communication could be cleaner: pause, state your approach explicitly, then code. Don't think out loud while writing.

⚠️Missed the duplicate-key edge case initially. Always run through empty input, single element, and all-negatives before starting.

💡Practice saying: "I'll handle [edge case] by..." — it signals thoroughness to interviewers.

Progress Analytics

Track improvement over sessions with streaks, topic breakdown, and trends

interviewai.codelab.sh/progress

7.4

Avg Score

Sessions

+1.8

Score Δ

🔥 5

Day Streak

Score Trend

Oct 1Oct 15Oct 30

By Topic

Arrays & Hashing8.2

Trees & Graphs7.1

Dynamic Prog.6.4

System Design5.8

Behavioral8.8