Top 10 technologies for data engineers.

Top 10 technologies you must know as a Data Engineer:
As a data engineer, you should be familiar with a variety of technologies to effectively design, build, and maintain data pipelines and infrastructures. Here are the top 10 technologies you must know as a data engineer:

1. SQL: SQL (Structured Query Language) is the standard language for managing and querying relational databases. You need to be proficient in SQL for data extraction, transformation, and loading (ETL) processes.
   1. Python/Scala/Java: Programming languages like Python, Scala, and Java are essential for writing code to build data processing pipelines, develop data ingestion scripts, and integrate with various data platforms and tools.
2. Apache Spark: Apache Spark is a widely used open-source cluster computing framework for big data processing. It provides efficient in-memory data processing capabilities and supports batch, streaming, and machine learning workloads.
3. Apache Kafka: Apache Kafka is a distributed streaming platform that is commonly used for building real-time data pipelines and streaming applications. You should understand how to work with Kafka for ingesting and processing real-time data streams.
4. Apache Airflow: Apache Airflow is a popular open-source platform for programmatically authoring, scheduling, and monitoring data pipelines. It helps data engineers orchestrate and manage complex data workflows.
5. NoSQL Databases: NoSQL databases, such as MongoDB, Cassandra, and HBase, are designed to handle large volumes of unstructured and semi-structured data.
6. Cloud Services: Cloud services like Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure offer a wide range of data storage, processing, and analytics tools. 8. Data Warehousing: Data warehousing technologies like Amazon Redshift, Google BigQuery, and Snowflake are essential for storing and analyzing large volumes of structured data.
7. Data Modeling: Data modeling techniques, such as dimensional modeling and star schema design, are crucial for structuring and optimizing data for analytical purposes.
8. Container Technologies: Container technologies like Docker and Kubernetes are increasingly being used to package and deploy data processing applications and services. Most importantly, staying up-to-date with emerging technologies and trends in the data engineering field is essential for professional growth and adapting to new challenges.