ETL DEVELOPER

Extracting the best out of heaps of data is the key to a successful business today. And this is what all industry segments have realized very well. Unless you leverage the huge amount of data and gain valuable insights from it, there is no value addition. But, unless the data is in an understandable and manageable form, it is tough to gain deep insights into it

The key USP lies in extracting the data from various sources, transforming it, and then loading it into logical units. That is where the concept of?Extract, Transform, Load (ETL)?comes into the picture. And the resources that perform the ETL process in an optimal way are the skilled ETL developers.

Before we understand how ETL developers function and what their roles and responsibilities are, let us glance through what ETL means.

What Is ETL?

In computing, extract, transform, load (ETL) is the general procedure of copying data from one or more sources into a destination system that represents the data differently from the source(s) or in a different context than the source(s). The ETL process became a popular concept in the 1970s and is often used in data warehousing. 

ETL Developers – Who Are They? Roles, Skills, And Responsibilities

As a discipline-oriented role, they are the backbone of the entire ETL process, the fundamental reason why the ETL process is so leveraged and popular – ETL developers. They are a rage today and shall continue to remain so.

ETL developers are IT specialists, software engineers that manage the entire ETL process. As a part of the data engineering team, they also get involved in testing the performance of the system and solve discrepancies before it goes live. They gather raw data, decide on how to make it usable, process it to leverage its potential, and then store it in an accessible storage location.

ETL developers’ study, analyze, and understand the data related situation of any organization, design, and develop data storage systems based on that understanding. They usually form an integral part of a consolidated team. They are sometimes employed by an individual organization or sometimes, they may come as consultants from an IT company.

Roles And Responsibilities Of ETL Developers
Ascertain the organization’s data storage requirements and understand your data sources
Come up with the best strategy for best data extraction, suited to your organization
Handle data modeling, data warehouse architecture, data pipeline management, and ETL testing
Utilize various?data warehousing?fundamentals for setting up a data warehouse
Help to collect, manage, and analyze huge volumes of data for extraction, transformation, and loading
Implement database structure, data marts, data stores, and data lakes
Ensure high-end security and good quality of data
Come up with robust data flow models for the applications
Transforms data requirements into functional mapping designs
Safeguard proper functioning of data once the transfer is done
Seamless collaboration with data management teams on giving required data
Testing the warehouse infrastructure/storage system prior to data extraction
Offer regular maintenance support
Administering ETL tools, app integration, performance tuning
Working on technical/functional documentation
Monitor pre-decided ETL jobs and ensure resolution of discrepancies

Data is synthesized from disparate sources like flat files, databases, web services, etc. to create a data warehouse/data hub/data lake
Data integration happens through a common data repository
Extraction, transformation, and loading of data happens into the final output – data warehouse
Profound historical context is offered for the business
Data management takes place through a pre-defined process
Key Benefits Of An ETL Process
Simple to utilize via automated processes
Offers a visual flow of the entire process logic through a robust UI
Possesses an in-built error handling functionality to design and develop a thorough process
Suitable for complicated data management scenarios
Enhanced?business intelligence?and data access with ETL tools
Assists organizations in cost-savings and generating maximized revenue
Supports superior performance increasing technologies.