Browse by skill
Pick the skills you're building toward.
Every skill family below opens onto real industry 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 · 288 challenges
Computer Science
Testing & QA
14 skills · 44 challenges
Computer Science
Security & Cyber Defense
13 skills · 36 challenges
Computer Science
Backend & API Development
11 skills · 33 challenges
Computer Science
Database & Storage
12 skills · 32 challenges
Computer Science
Data Engineering & Pipelines
12 skills · 29 challenges
Computer Science
DevOps & CI/CD
11 skills · 29 challenges
Computer Science
Architecture & System Design
10 skills · 25 challenges
Computer Science
Cloud & Infrastructure
10 skills · 20 challenges
Computer Science
Site Reliability & Observability
11 skills · 18 challenges
Computer Science
Frontend Development
11 skills · 8 challenges
Computer Science
Mobile Development
8 skills · 7 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.