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Reddit runs an online platform of more than 100,000 topic-based communities, serving 443 million weekly active users and investing in moderation and participation tooling.
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Pinterest runs a visual discovery platform with over 600 million monthly users, plus advertising and shopping tools for businesses, built on recommendation, search and commerce technology.
Pinterest operates a visual discovery engine used by more than 600 million people each month to find and save ideas - recipes, home decor, fashion, DIY projects - and to plan purchases and projects. Founded in 2010 and headquartered in San Francisco, the company runs its service worldwide. Beyond the consumer product, Pinterest sells advertising and shopping services to businesses that want to reach users who are actively looking for ideas and are often close to buying.
The engineering work spans several domains: visual discovery, recommendation systems, search, advertising technology and e-commerce infrastructure. Three product lines carry this. The Pinterest Platform is the consumer application where ideas are found and curated. Pinterest Ads lets businesses reach audiences in a way intended to fit the browsing experience rather than interrupt it. Shopping features connect merchants with users who are ready to purchase, forming a commerce destination inside the platform.
The company describes its mission as bringing everyone the inspiration to create a life they love, and positions itself as a positive corner of the internet. Stated cultural priorities include workplace flexibility, inclusion and employee wellbeing.