What is Data Engineering? How to Become a Data Engineer?

by Akash Raj | 2023/03/18 | Data Engineering, Big Data

In today’s digital age, data has become one of the most valuable assets for businesses. Companies are using data to make informed decisions, gain insights, and create personalised experiences for their customers.

However, the increasing volume, velocity, and variety of data have made it challenging to manage, process, and store. This is where data engineering comes into play. 

Data engineering is a rapidly growing field that plays a crucial role in enabling businesses to harness the power of data. But what is data engineering, and what does a data engineer do

Put simply, data engineering involves designing, building, and maintaining the infrastructure that enables the collection, storage, processing, and analysis of large volumes of data. 
In this blog, we’ll take a closer look at what data engineering is, what a data engineer does, and the types of data engineer jobs available in the industry. Whether you’re interested in pursuing a career in data engineering or simply want to learn more about this exciting field, keep reading to discover everything you need to know.

What is Data Engineering? 

Data engineering is the process of designing, building, and managing the infrastructure required to collect, store, process, and analyse large volumes of data. It involves transforming raw data into a format that can be easily accessed, queried, and analysed by data scientists, analysts, and other stakeholders. Data engineers are responsible for building and maintaining the data pipelines that enable organisations to make data-driven decisions.

Why is Data Engineering Important? 

Data engineering is crucial for several reasons, including:

Data Quality:

One of the main reasons why data engineering is crucial is that it helps ensure data quality. Data engineers are responsible for ensuring that the data is accurate, consistent, and reliable. This involves cleaning and transforming the data to ensure that it is in a suitable format for analysis. Data engineers also validate the data to ensure that it meets certain standards and is free of errors that could affect the accuracy of analysis.


Another important reason why data engineering is essential is that it enables organisations to handle large volumes of data. With the exponential growth of data, it is critical to have scalable and efficient systems that can manage and process vast amounts of data. Data engineers build these systems to ensure that they can handle large volumes of data without compromising performance or accuracy.


Data engineering helps organisations process and analyse data faster, enabling them to make real-time decisions. By optimising data processing and storage, data engineers can help organisations access data faster, reduce latency, and gain insights more quickly. This can be particularly valuable for businesses that need to make decisions quickly in response to changing market conditions or customer needs.


Data engineering enables the integration of data from various sources, including databases, APIs, and sensors, into a unified system. By building pipelines that can connect different data sources and formats, data engineers help organisations access a broader range of data and gain more comprehensive insights. This integration can also help businesses gain a competitive edge by enabling them to identify new opportunities or trends that they might have missed otherwise.


Data security is an essential consideration for any organisation that collects or processes data. Data engineering helps ensure that data is stored and accessed securely, protecting it from unauthorised access, theft, or loss. Data engineers use encryption, access controls, and other security measures to safeguard data from external and internal threats. This is particularly important given the increasing risk of cyberattacks and data breaches in today’s digital landscape.

Skills Needed to Become a Data Engineer 

To become a data engineer, you need to have a combination of technical and soft skills. Here are some of the essential skills you should have:

Programming Skills:

One of the key technical skills required to become a data engineer is proficiency in programming languages like Python, Java, and Scala. Data engineers should also have a good understanding of SQL and NoSQL databases, which are used to manage and store data. A strong foundation in programming languages and databases is essential for developing efficient and scalable data pipelines and systems.

Big Data Technologies:

Data engineers should have a good understanding of big data technologies like Hadoop, Spark, and Kafka. These technologies are used to manage and process large volumes of data efficiently. Data engineers should know how to use these technologies to design and implement data pipelines and systems that can handle big data.

Cloud Computing:

Cloud computing platforms like AWS, Azure, and GCP are widely used to store, manage, and process data. Data engineers should be familiar with these platforms and know how to use them to build scalable and efficient data pipelines and systems. A good understanding of cloud computing is essential for designing data solutions that can handle large volumes of data and complex processing requirements.

Data Modelling:

Data engineers should be proficient in data modelling techniques like entity-relationship diagrams and data flow diagrams. These techniques are used to design and structure data so that it can be easily understood and processed. Data engineers should know how to use these techniques to create efficient and scalable data models that can be used to build data pipelines and systems.

ETL Tools:

Extract, Transform, Load (ETL) tools like Apache NiFi, Talend, and Informatica are used to extract data from various sources, transform it into a suitable format, and load it into a target system. Data engineers should be familiar with these tools and know how to use them to build efficient and scalable data pipelines.

Problem-Solving Skills:

Data engineers should have strong problem-solving skills to identify and resolve issues with data pipelines and systems. They should be able to diagnose and troubleshoot issues quickly and find effective solutions to ensure that data pipelines and systems are running smoothly.

Communication Skills:

Data engineers should have excellent communication skills to collaborate with other stakeholders like data scientists, analysts, and business leaders. They should be able to communicate technical concepts and solutions clearly and concisely to non-technical stakeholders. Strong communication skills are essential for ensuring that data solutions meet business needs and goals.

Data Engineering Jobs And Salary

Data engineering has become an essential role for many organisations, and as a result, there is a growing demand for data engineers in the job market.

Data engineer jobs can vary in terms of responsibilities and requirements, but typically, data engineers are responsible for designing, building, and maintaining data pipelines and systems. They work with large volumes of data and use a range of tools and technologies to ensure that data is processed efficiently, accurately, and securely.

Data engineer salary varies depending on several factors, including location, industry, and experience. According to Glassdoor, the median salary for a data engineer in India is around 8 Lakhs per year, with some data engineers earning over 10 lakh per year.

In terms of job opportunities, data engineering roles can be found in a range of industries, including finance, healthcare, e-commerce, and technology. Some common job titles for data engineering positions include Data Engineer, Big Data Engineer, Data Pipeline Engineer, and ETL Developer.

As organisations continue to rely on data to drive business decisions and gain insights, the demand for data engineers is expected to continue growing. This presents an excellent opportunity for individuals with the technical and soft skills required to succeed in this field. With the right combination of skills and experience, data engineers can expect to find a wide range of job opportunities and competitive salaries.

Data Engineering With CloudyML 

Data engineering is a critical function that enables organisations to leverage the power of data for informed decision-making. As already mentioned, with the increase in reliance on data to drive decision-making, the demand for skilled data engineers continues to increase, leading to lucrative data engineer salary packages and numerous data engineer jobs available in the market.

If you’re looking to break into this in-demand field or upgrade your data engineering skills, ClodyML’s data engineering course is an excellent choice. With CloudyML’s comprehensive curriculum, expert instructors, and hands-on projects, you’ll gain practical knowledge and experience to excel as a data engineer. Additionally, you’ll have access to career support resources, including job placement assistance, to help you land your dream data engineer job.

Investing in CloudyML’s data engineering course is a wise decision that can pay off handsomely in terms of career growth and earning potential. Don’t miss out on this opportunity to become a highly sought-after data engineer and secure a fulfilling career in the data industry.

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