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 · 108 challenges
Computer Science
Testing & QA
14 skills · 26 challenges
Computer Science
DevOps & CI/CD
11 skills · 23 challenges
Computer Science
Security & Cyber Defense
13 skills · 23 challenges
Computer Science
Backend & API Development
11 skills · 22 challenges
Computer Science
Architecture & System Design
10 skills · 19 challenges
Computer Science
Database & Storage
12 skills · 18 challenges
Computer Science
Site Reliability & Observability
11 skills · 15 challenges
Computer Science
Data Engineering & Pipelines
12 skills · 12 challenges
Computer Science
Cloud & Infrastructure
10 skills · 9 challenges
Computer Science
Mobile Development
8 skills · 5 challenges
Computer Science
Frontend Development
11 skills · 2 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.