AI engineering glossary · Data engineering
What is S3 (Amazon S3)?
Amazon S3 (also called S3, Simple Storage Service): Amazon's object storage service, holding files as objects inside named buckets, with very high durability and pay-as-you-use pricing. It is the common foundation for data lakes built on Amazon Web Services.
Amazon S3: an example
A team stores raw JSON logs at s3://acme-logs/2026/09/01/ and reads them with Spark.
Related terms
More Data engineering terms
- Apache Airflow
- Apache Beam
- Apache Flink
- Apache Hudi
- Apache Iceberg
- Apache Kafka
- Apache Spark
- At-least-once delivery
Where you learn it
Amazon S3 is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.