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Data Quality Analyst

Data Quality Analysts invoke a blend of technical, adaptive and interpretive skills to verify that incoming and outgoing data meet expected quality standards. In the event of quality issues, they work with internal and external team members to determine the origins of those issues and provide recommendations to solve them.

What is a Data Quality Analyst?

Data Quality Analysts verify incoming and outgoing data in order to meet expected quality standards. They interpret various data streams, analyze the results and provide root cause reports to communicate the scope and depth of any issues. Data Quality Analysts will help work with other team members to determine the origin of quality issues and provide recommendations to solve them. 

 

Skills That Set Them Apart

Data Quality Analysts need to exhibit a blend of technical, adaptive and interpretative skills in order to be successful. 

  • Technical: Using computational theories and applications that may include data mining and the use of analytic models, data warehouse set-up, statistics and/or relational algebra, and specific programming languages.
  • Adaptive: Working with internal and external team members to measure, monitor and improve data quality.
  • Interpretive: Identifying and reporting on the complex relationships between the technology and information, providing projections and predictions, cost analysis, impact and error detection.

Specialized Training

After graduation, most Data Quality Analysts pursue specialized training or additional certification to enhance their skills. They may focus on statistics, scripting or programming, where they can be more versatile in serving your business needs. 

Frequently a career in Data Quality Analysis is the first step in a career that often leads to more advanced roles such as Data Analyst or even eventually Data Scientist.

The Educational Foundation That Sets the Stage

Data Quality Analysts work closely with data culled from a variety of different sources, transforming complex data into more useful formats for use in other parts of the business, so they should have a bachelor’s degree in Mathematics, Computer Science, Economics or Statistics.

ETL Tools

Skills in leveraging the power of data wrangling tools such as Alteryx are essential for a Data Quality Analyst.

Alteryx
Data ETL & Data Wrangling Commercial

Alteryx

Alteryx is the only quick-to-implement end-to-end data analytics platform for your organization that allows data scientists and analysts alike to solve business problems faster than you ever thought possible.

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Free open source tools are increasing being used to perform data quality analysis. Those include tools such as KNIME, Talend and Pentaho.

KNIME Analytics Platform
Data ETL & Data Wrangling FREE Open Source

KNIME Analytics Platform

KNIME Analytics Platform is a powerful free open source data mining tool which enables data scientists to create independent applications and services through a drag and drop interface. It can serve well as a business intelligence resource, which can be used f...

4

SQL

Data Quality Analysts should know how to execute complex queries in SQL (structured query language). 

 

JavaScript

What scripting language should a Data Quality Analyst learn? According to one source, JavaScript was cited as the most used scripting language.

 

Python

Data Quality Analysts  are often required to know Python, as well as JavaPerl and C/C++. Python is relatively easy to learn, and it is supported by an active community. Python has been gaining on R in popularity in recent years, though both of these open-source languages are popular.

 

NoSQL

Data Quality Analysts may want to add NoSQL such as MongoDB or HBase to their skillset, as these systems work quickly with large volumes of data and are easily scalable for a more customized approach.

 

Non-traditional Data Corralled with Fuzzy Logic

Unstructured data from reviews, social media comments and email can be a gold mine of information for Data Quality Analysts, but it doesn’t always fit neatly into traditional data tables. That’s why they may need to leverage the capabilities of ETL.

 

Data Visualization Tools

Being able to communicate their findings is a key responsibility for Data Quality Analysts, and in order to do so, they need to know which tools will work best for their applications. 

Tableau is an essential software package that can present the data and showcase the derived insights. It allows Data Quality Analysts to show the results in a variety of visual formats. 

Tableau
Data Visualization Commercial

Tableau

Tableau is a Business Intelligence tool created to help anyone see and understand their data. Connect to almost any database, drag and drop to create...

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ggplot2 allows Data Quality Analysts to plot trends on a graph with unique color-coding to help distinguish  between key points. The findings can then be processed directly as a PDF or object that can be easily disseminated to shareholders.

FusionCharts is a JavaScript-based formatting software that charts both web and mobile platform data into three-dimensional graphs. According to New Gen Apps, more than 80% of Fortune 500 companies use it.

Typical Data Quality Analyst Compensation

How much does a Data Quality Analyst make per year? Depending on skills, experience and additional certifications, some of the best-known job-search companies have this to say about salaries:

What to Expect from a Wyzoo Data Scientist

Wyzoo Data Quality Analysts leverage the latest technology. They apply AI and machine learning to interpret big data for accurate data analysis, helping you make more reliable data quality decisions, faster and more dependably than ever before. They’re your team of experts who are responsible for:

  • Identify, compare, and resolve data quality problems.
  • Analyze, query and manipulate data according to defined business rules and procedures.
  • Evaluate large dataset for quality and accuracy.
  • Determine business impact level for data quality issues.
  • Identify root cause for data quality errors and make recommendations for long-term solutions.
  • Develop process improvements to enhance overall data quality and execute data cleanup measures.
  • Ensure adherence to data quality standards.

 

Wyzoo’s Data Quality Analysts devise custom answers to your data issues and problems by helping you understand potential data loopholes and provide real solutions to maximize your accuracy.

Resources

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