Composer is PHP's dependency manager — declaring, resolving, and autoloading packages via composer.json instead of hand-copying libraries. It's foundational for Magento Developers building modular e-commerce stores, and comes up regularly for Drupal and Laravel developers managing contrib modules and framework upgrades. Indian PHP shops and Magento agencies treat Composer fluency as table stakes for mid-level hires, since Magento 2's entire module system is built on it.
The skills most often needed alongside Composer in the same roles — build these together to widen your options.
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