Browse by skill
Pick the skills you're building toward.
Every skill family below opens onto real-world challenges that build it and prove it. Solve them, ship them, walk away with a verified credential.
Computer Science
Computer Science
Programming Fundamentals
19 skills · 212 challenges
Computer Science
Testing & QA
14 skills · 35 challenges
Computer Science
Backend & API Development
11 skills · 30 challenges
Computer Science
Security & Cyber Defense
13 skills · 29 challenges
Computer Science
Database & Storage
12 skills · 28 challenges
Computer Science
DevOps & CI/CD
11 skills · 24 challenges
Computer Science
Architecture & System Design
10 skills · 21 challenges
Computer Science
Data Engineering & Pipelines
12 skills · 20 challenges
Computer Science
Site Reliability & Observability
11 skills · 16 challenges
Computer Science
Cloud & Infrastructure
10 skills · 13 challenges
Computer Science
Frontend Development
11 skills · 7 challenges
Computer Science
Mobile Development
8 skills · 6 challenges
Hiring from this pool?
Sponsor a challenge and meet candidates through actual work.
Industry teams can shape briefs around the skills they hire for, then evaluate students on rubric-scored deliverables — not resumes.