The noun 软件 (ruǎnjiàn) means "software" and is used in technology-related contexts. It contrasts with 硬件 (yìngjiàn, "hardware"). You will encounter it in terms like 软件工程师 (software engineer) and 软件开发 (software development).
你用什么软件编辑照片?
Nǐ yòng shénme ruǎnjiàn biānjí zhàopiàn?
What app do you use to edit photos?
这个软件需要更新到最新版本。
Zhège ruǎnjiàn xūyào gēngxīn dào zuìxīn bǎnběn.
This software needs to be updated to the latest version.
他是一名软件工程师,在大公司上班。
Tā shì yì míng ruǎnjiàn gōngchéngshī, zài dà gōngsī shàngbān.
He is a software engineer and works at a big company.