A Data Engineer is a person, fully equipped with knowledge of hardware, databases, data processing at scale and computer engineering and who can build data infrastructure, manage data storage and use and Implement production tools. He can be from any background like: Computer Science and Engineering, Information Technology, Computer Science.
A data scientist is responsible for pulling and cleaning data, designing experiments, analyzing data and communicating result. He should have stronger statistics and presentation skills than a data analyst and data engineer. A data scientist would have strong skills of Inferential Statistics, Machine Learning, Data Analysis, Data Communication.
“There’s a joke running around on Twitter that the definition of a data scientist is ‘a data analyst who lives in California,” — Malcolm Chisholm
Data Science Manager:
A Data Science Manager is a person who builds a data team, manages the whole data science process, set goals and priorities and interact with other groups and higher management. He should be strong knowledge of software and hardware, knowledge of roles, strong communication and he knows what can and can’t be achieved. A Data Manger can be any background like: Data science plus management skills or Data engineering plus management skills or Management skills plus got certain training in data science.
A Data Architect understand all the sources of data and responsible for integrating, centralizing and maintaining all the data. He has strong knowledge of how the data relates to the current operations and the effects that any future process changes will have on the use of data in the organization. His role may include may include things like designing relational databases, developing strategies for data acquisitions, archive recovery, and implementation of a database, cleaning and maintaining the database by removing and deleting old data etc.
Data analysts need to have a good understanding of programming, statistics, machine learning, data munging, and data visualization. He may not have the mathematical or research background to invent new algorithms, but they have a strong understanding of how to use existing tools to solve problems and get new useful insights from data.
Business Analyst performs the task of understanding business change needs, assessing the business impact of those changes, capturing, analyzing and documenting requirements and supporting the communication and delivery of requirements with relevant stakeholders. The business analyst role is often seen as a communication bridge between IT and the business stakeholders. Business analysts must be great verbal and written communicators, tactful diplomats, problem solvers, thinkers and analyzers – with the ability to engage with stakeholders to understand and respond to their needs in rapidly changing business environments.
Why we need software engineers in data science team? Software engineers are also needed in data science team because Software is the generalization of a specific aspect of a data analysis. If specific parts of a data analysis require implementing or applying a number of procedures or tools together then we need to build a piece of software to reduce the repeated work. In a sentence we can say that Software engineering is used to generalize data analyses into software so that they can be applied in different situations