Object storage
Cloud storage for files of any size, from images to backups, fetched by name over the internet rather than from a disk.
What it tells you about a developer
Object storage is everyday vocabulary for anyone who has shipped cloud software, so it works better as a comprehension check than a differentiator. The signal appears at scale: a developer who has thought about storage costs, file lifecycle rules, or serving millions of images has operated a real production system.
Object storage holds whole files, called objects: images, videos, logs, backups, datasets. It scales without limit, costs little per gigabyte, and applications fetch each object by its name. Amazon S3 defined the model; Google Cloud Storage, Azure Blob Storage, and Cloudflare R2 are the equivalents. Data lakes are built on top of it.