Hire the best developers, 5x faster.

Identify Talent, Not Just Resumes

Use AI-powered coding challenges to find the best developers. Skip the resume screening and see actual coding skills in action.

Challenge.js
Solution
// Two Sum Problem
// Given an array of integers and a target sum,
// return indices of two numbers that add up to target

function twoSum(nums, target) {
    // Your code here
    const map = new Map();
    
    for (let i = 0; i < nums.length; i++) {
        const complement = target - nums[i];
        
        if (map.has(complement)) {
            return [map.get(complement), i];
        }
        
        map.set(nums[i], i);
    }
    
    return [];
}

// Test cases
console.log(twoSum([2, 7, 11, 15], 9)); // [0, 1]
console.log(twoSum([3, 2, 4], 6));      // [1, 2]
Output
[0, 1] [1, 2]

For Companies

Hire with confidence using our comprehensive assessment platform

Plagiarism Detection

Advanced AI detects copied code and ensures authentic solutions from candidates.

Custom Assessments

Create tailored coding challenges that match your specific role requirements.

Candidate Benchmarking

Compare candidates against industry standards and your team's performance.

Get Discovered by Top Tech Companies

Showcase your coding skills to leading technology companies. Our platform connects talented developers with opportunities at scale.

  • Practice with real-world coding challenges
  • Get matched with relevant job opportunities
  • Build a portfolio that speaks for itself
  • Join a community of skilled developers
50K+
Active Developers
500+
Partner Companies
95%
Success Rate

Trusted by Leading Tech Companies

Google
Microsoft
Amazon
Meta
Apple
Netflix

© 2025 CodeSignal. Developed by RiverTheme