AI-Powered Mock Interviews Available Now

Master Your Tech Interview
With AI Coach

The open-source AI platform that simulates realistic coding interviews. Get instant feedback on your algorithms, system design, and soft skills.

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AI
Senior Engineer Coach
Online • Adaptive Difficulty
AI

Let's look at optimization. Your previous solution works, but it's O(n²).

Can you optimize this search using a Hash Map?

User

Yes! If we store the visited numbers in a map, we can check for the complement in O(1) time.

const
seen =
new
Map
();
for
(
let
i = 0; i < nums.length; i++) { ... }
AI
Excellent Analysis

That brings the complexity down to O(n) time and O(n) space. This is the optimal solution for the Two Sum problem.

Type your answer here...

Built for Excellence

We combine advanced LLMs with proven interview frameworks to give you the most realistic practice environment.

Conversational AI

It's not just a quiz. The AI engages in a back-and-forth dialogue, asking follow-up questions to test the depth of your knowledge.

Real-time Feedback

Receive instant grading on code efficiency (Big O), code cleanliness, and even communication style after every session.

Adaptive Difficulty

Whether you're a Junior Dev or a Staff Engineer, the questions scale to match your target role and seniority.

Algorithm Practice

Practice Real Algorithms,
Get Instant Feedback.

Work on industry-standard algorithm problems directly in the browser. Our AI parses your AST (Abstract Syntax Tree) logic to find edge cases you missed, security vulnerabilities, and optimization opportunities.

  • Syntax & Logic Verification
  • Time & Space Complexity Analysis
  • Alternative Solution Suggestions
solution.js
// Find the longest substring without repeating characters
function
lengthOfLongestSubstring
(s) {
  
let
set =
new
Set
();
  
let
left = 0, maxSize = 0;
  
if
(s.length === 0)
return
0;

  // ... user logic ...

  
return
maxSize;
}
Optimization Detected

Future Roadmap

Voice Mode Interaction

Q3 2024

Full voice-to-voice interviews using specialized speech models to simulate phone screens and onsite system design rounds.

Browser Extension

In Progress

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Community Question Bank

Planned

A shared repository of recent interview questions contributed by the open source community.

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