Data Engineer

• Programming: Python, SQL, Java
• Databases: MySQL, PostgreSQL, MongoDB
• Big Data: Apache Spark, Hadoop
• Cloud Platforms: AWS, Azure, Google Cloud
• ETL Tools: Airflow, dbt, Informatica

Key Skills

• Strong SQL and data modeling
• Programming (especially Python)
• Understanding of distributed systems
• Problem-solving and attention to detail

Data Engineer vs Others

• Data Analyst → Interprets data and creates reports
• Data Scientist → Builds predictive models and AI
• Data Engineer → Builds the infrastructure that makes both possible