The #1 Coding Challenge Platform
Hire using real-world tasks, not puzzles.
Get an accurate measure of every candidate's coding and problem-solving skills, while providing them with a fair and positive coding experience that mirrors real work.
Library
Extensive real-world challenges
Rich library of hand-crafted challenges featuring practical, hands-on project simulations. From junior to senior architect level, covering all major programming languages and frameworks.
- Hand-crafted project simulations
- 60+ languages & frameworks
- AI challenge creation and remix
Authentic Assessment
Real development conditions
Get accurate candidate evaluation by removing artificial constraints. Candidates work with their own tools and environments, giving you genuine insights into their actual coding abilities.
- Candidates use familiar tools
- No artificial browser constraints
- Authentic coding assessment
Deep Dive
Dig deeper with live coding
Create CodePair live coding sessions directly from take-home submissions. Our AI assessment provides targeted follow-up questions to explore candidate thinking and problem-solving approaches.
- Import take-home submissions
- AI-generated follow-up questions
- Live collaborative coding
AI Assessment
Intelligent code analysis
Receive detailed reports on candidate performance with automated AI analysis covering code quality, problem-solving approach, and technical skills.
- Automated code quality analysis
- Problem-solving approach evaluation
- Detailed candidate insights
trusted by leading organizations worldwide
I like how the library challenges are structured around on-the-job skills. The experience for candidates is excellent. They work locally with the IDE and tools they are most comfortable with.
Innovative Git Workflow
Realistic candidate experience
On CodeSubmit, candidates use Git to clone their assignment, work on it locally, and push their changes back to the platform. This means they can use their own tools and IDE configuration, work on their own machines, and in their own time.
CodeSubmit in a nutshell
Find proven builders
Find the right engineers faster with real world assessments for today's engineering skills. Everything you need to identify great candidates and make hires that work.