Data analyst
Also known as: data warehousing analyst, data analysts, data warehouse analyst, data storage analyst
About this occupation
Data analysts import, inspect, clean, transform, validate, model, or interpret collections of data with regard to the business goals of the company. They ensure that the data sources and repositories provide consistent and reliable data. Data analysts use different algorithms and IT tools as demanded by the situation and the current data. They might prepare reports in the form of visualisations such as graphs, charts, and dashboards.
Essential skills and knowledge
- unstructured data
- perform data cleansing
- interpret current data
- define data quality criteria
- statistics
- normalise data
- implement data quality processes
- integrate ICT data
- analyse big data
- establish data processes
- data mining
- query languages
Typical tasks and preparation
From the related US occupation profile Data Scientists (O*NET 15-2051.00). Linked by an official crosswalk: related, not identical; details vary by country.
- Analyze, manipulate, or process large sets of data using statistical software.
- Create graphs, charts, or other visualizations to convey the results of data analysis using specialized software.
- Test, validate, and reformulate models to ensure accurate prediction of outcomes of interest.
- Deliver oral or written presentations of the results of mathematical modeling and data analysis to management or other end users.
- Recommend data-driven solutions to key stakeholders.
- Identify business problems or management objectives that can be addressed through data analysis.
- Preparation
- Job Zone 4 of 5
- Interests
- Investigative, Conventional, Artistic
Top skills: Mathematics, Critical Thinking, Reading Comprehension, Complex Problem Solving, Programming, Speaking
US median pay: US$120,230 a year (2025), 262,440 employed. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics.
Subjects this work relies on
How important each subject's knowledge is in the job itself, rated by people doing it (1 to 5).
- Mathematics or StatisticsO*NET: MathematicsExtremely important (4.5)
- Computer StudiesO*NET: Computers and ElectronicsVery important (4.2)
- English or Literature in EnglishO*NET: English LanguageImportant (3.0)
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.
Preparation needed
Job Zone Four: Considerable Preparation Needed
- Education
- Most of these occupations require a four-year bachelor's degree, but some do not.
- Experience
- A considerable amount of work-related skill, knowledge, or experience is needed for these occupations. For example, an accountant must complete four years of college and work for several years in accounting to be considered qualified.
- Training
- Employees in these occupations usually need several years of work-related experience, on-the-job training, and/or vocational training.
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.
Related occupations
Occupations O*NET links to this one by similar work, skills and knowledge.
- Statisticians
- Statistical Assistants
- Financial Quantitative Analysts
- Operations Research Analysts
- Bioinformatics Scientists
- Bioinformatics Technicians
- Mathematicians
- Computer and Information Research Scientists
- Biostatisticians
- Business Intelligence Analysts
O*NET data describe work in the United States; requirements differ by country. This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET is a trademark of USDOL/ETA. CareerProof Global has modified all or some of this information; USDOL/ETA has not approved, endorsed, or tested these modifications.