Data Engineer: Job Duties, Skills and Salary 2025

What does a Data Engineer do?

A Data Engineer is responsible for the design, construction, installation, testing, and maintenance of highly scalable data management systems. They build high-performance algorithms, predictive models, and prototypes that can ingest, distribute, and analyze large amounts of data from varying sources, ensuring it is accessible and usable for data scientists and analysts.

Data Engineer: Main duties

Data Engineers in the IT & Development field handle essential tasks and contribute significantly to achieving team and organizational goals. Here are some of their primary responsibilities:

Develop, construct, test, and maintain architectures, such as databases and large-scale processing systems.
Employ a variety of languages and tools to marry systems together or try to hunt down opportunities to improve data reliability, efficiency, and quality.
Use complex data sets to build data pipelines and integrate data from various resources.
Use data to discover tasks that can be automated.
Prepare data for predictive and prescriptive modeling.
Find hidden patterns using data.
Use data to make business decisions.
Employ an array of technological tools and techniques to process big data and ensure data privacy and security.

Data Engineer: Key Qualifications

Bachelor’s or Master’s degree in Computer Science, Statistics, Informatics, Information Systems, or another quantitative field.
Experience with big data tools: Hadoop, Spark, Kafka, etc.
Experience with data pipeline and workflow management tools.
Experience with object-oriented/object function scripting languages: Python, Java, C++, Scala, etc.

Basic Skills and Requirements for Data Engineers

Advanced working SQL knowledge and experience working with relational databases, query authoring (SQL) as well as working familiarity with a variety of databases.
Experience building and optimizing ‘big data’ data pipelines, architectures, and data sets.
Strong analytic skills related to working with unstructured datasets.
Build processes supporting data transformation, data structures, metadata, dependency, and workload management.
A successful history of manipulating, processing, and extracting value from large disconnected datasets.
Working knowledge of message queuing, stream processing, and highly scalable ‘big data’ data stores.
Strong project management and organizational skills.

Salary Expectations for Data Engineers

Job	Branch	Avg. US Salary
Data Engineer	IT & Development	122,450 USD

The average salary for a Data Engineer in the U.S. is approximately $122,450 per year and can vary from entry-level to senior positions. Data Engineers may receive a wide range of benefits.

Level	Experience	Avg. Salary per Year
Veteran	20+ years	$153,063
Senior	11+ years	$134,695
Experienced	6-10 years	$122,450
Mid Level	3-5 years	$110,205
Entry Level	0-2 years	$91,838

To explore more detailed salary information, including specific salary estimates in your country, visit the Data Engineer Salary Country Overview.

Career Path for Data Engineers

Data Engineers typically begin their careers with a bachelor's degree in computer science, engineering, mathematics, or a related field. Entry-level positions in data engineering may include roles such as Data Analyst, Database Developer, or Software Engineer, where professionals gain foundational experience in data management, database design, and programming.

With experience, Data Engineers can advance to roles such as Data Engineer, Senior Data Engineer, or Data Architect, where they lead data engineering projects, design and optimize data pipelines, and implement scalable data solutions.

Continued education, staying updated on emerging technologies such as big data frameworks, cloud platforms, and machine learning, and building a portfolio of projects are essential for career growth in data engineering.

Data Engineer: Work Environment

Data Engineers work in various industries, including technology, finance, healthcare, e-commerce, and entertainment. They collaborate closely with data scientists, business analysts, software developers, and other stakeholders to design, build, and maintain data infrastructure and systems.

Data Engineers may use programming languages such as Python, SQL, or Java, as well as data processing frameworks such as Apache Hadoop, Apache Spark, or Apache Kafka, to develop and deploy data pipelines, ETL processes, and data integration solutions.

The work environment for Data Engineers is fast-paced and dynamic, with professionals often working on multiple projects simultaneously and adapting to evolving business requirements and technology trends.

While standard business hours are typical, Data Engineers may need to work evenings, weekends, or overtime to meet project deadlines or address urgent issues. Overall, being a Data Engineer offers the opportunity to work with cutting-edge technologies, solve complex data problems, and contribute to the success of data-driven initiatives that drive business growth and innovation.

Data Engineer: Job Duties, Skills and Salary 2025

Explore the role of a Data Engineer, including their responsibilities, qualifications, and essential skills required to build and maintain scalable data infrastructures.