Data cleaning — a core tech skill
Skill type: Technical
What this skill is
Entry data analytics workflow skill.
Roles that need it
Importance below is the source-backed role-skill rating recorded in our seed data (1–5). It describes how central the skill is to the role, not pay or hiring odds.
| Role | Importance | Role page |
|---|---|---|
| Data Analyst | Rated 5/5 importance for Data Analyst (O*NET) | Data Analyst |
| Business Intelligence Developer | Rated 4/5 importance for Business Intelligence Developer (U.S. Bureau of Labor Statistics) | Business Intelligence Developer |
| Machine Learning Engineer | Rated 4/5 importance for Machine Learning Engineer (U.S. Bureau of Labor Statistics) | Machine Learning Engineer |
How to build it
Data cleaning is a hands-on skill — built by doing it, not by reading about it. You build it by profiling and cleaning messy real-world datasets end to end, not through a single purchase. The cited credentials below can structure that practice around a published set of objectives, but no credential or course can guarantee the skill or a job; the practice is what builds it.
For structured course options, see the AI Learning Programs catalog at /ai-learning-programs. Courses listed there are learning programs, not certifications.
Sources
- U.S. Bureau of Labor Statistics — Employment Projections Skills Data: https://www.bls.gov/emp/data/skills-data.htm
- Coursera and Google — Google Data Analytics Professional Certificate: https://www.coursera.org/professional-certificates/google-data-analytics
- National Center for ONET Development — ONET Database: https://www.onetcenter.org/database.html
Citation Ledger
| ID | Supports | Evidence | Source |
|---|---|---|---|
| CIT-01 | What this skill is (Data cleaning) | Skill definition / classification | Coursera and Google — Google Data Analytics Professional Certificate |
| CIT-02 | What this skill is (Data cleaning) | Skill definition / classification | National Center for ONET Development — ONET Database |
| CIT-03 | Importance 5/5 for Data Analyst | ONET role-skill rating (ONET role-skill data) | Coursera and Google — Google Data Analytics Professional Certificate; National Center for ONET Development — ONET Database |
| CIT-04 | Importance 4/5 for Business Intelligence Developer | Source-backed role-skill rating (O*NET role-skill data) | U.S. Bureau of Labor Statistics — Employment Projections Skills Data |
| CIT-05 | Importance 4/5 for Machine Learning Engineer | Source-backed role-skill rating (O*NET role-skill data) | U.S. Bureau of Labor Statistics — Employment Projections Skills Data |