A data analyst is a professional who investigates data using data analysis tools to extract valuable information for management and business development. These individuals are capable of identifying patterns, dependencies, and trends in a large amount of data through a logical approach and technology (programming languages) that can positively influence management decisions and, consequently, business performance.
A data analyst is not just a programmer and requires a range of soft skills as they often engage in communication. They present their findings to management and must be able to justify their methods and results.
With the increasing complexity of business information systems (both in quantity and intricacy), it is becoming more challenging to extract useful information from data, leading to a growing demand for professionals in this field.
Data Analyst – Job Description
- Extraction of data from various operational systems
- Data processing, often on a database platform (SQL Server, Oracle, etc.)
- Development of data markets/contribution to the development of a data warehouse
- ETL processes, Reporting
- Data testing for analysis – i.e., conducting initial analysis to assess data quality
- In-depth analysis of large volumes of data and identification of important facts, trends, and insights
- Preparation of reports based on analysis
- Presentation to management
Possible Employers for Data Analysts
- Banks and insurance companies
- IT companies
- Telecommunication companies
- Public sector
- Marketing agencies
- Higher education institutions and universities
- Pharmaceutical companies
Key Skills for Data Analysts
- Programming languages – T-SQL (SQL Server), PL/SQL (Oracle), and Python/R
- Excellent Excel skills
- Principles of data warehousing and working with it
- Certifications like MCSA in SQL or MCSA Power BI are a plus
- Mathematical abilities
- Advanced analytical and modeling skills
- Ability to visualize data effectively for reporting
- Methodical and logical approach
- Precision and attention to detail
- Teamwork
- Communication skills