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A software quality assurance engineer is someone who monitors every phase of the software development process so as to ensure design quality, making sure that the software adheres to the standards set by the development company.

The Business Analyst is an agent of change. Business Analysis is a disciplined approach for introducing and managing change to organizations, whether they are for-profit businesses, governments, or non-profits.

Business systems analysts can be called BSAs, computer systems analysts and even systems architects. But no matter the label, these professionals are defined by the goal of helping an organization operate more efficiently and effectively through the design and implementation of information technology systems, according to the Bureau of Labor Statistics

Scrum masters serve as facilitators for agile teams working under the scrum methodology. They’re the point person responsible for understanding the big development picture of each sprint. They bridge the needs of product management, sales, marketing, operations, and product development. 

The Scrum product owner is typically a project's key stakeholder. Part of the product owner responsibilities is to have a vision of what he or she wishes to build, and convey that vision to the scrum team. 

DevOps engineers reduce that complexity, closing the gap between actions needed to quickly change an application, and the tasks that maintain its reliability. Development teams and IT operations teams can have different skills and different goals.