Tinder Engineering

Overview

Tinder is the most-used dating app in the world, and the engineering team has to ship a card-swiping client that feels instant on patchy mobile networks while operating a backend that personalizes a globally varying liquidity pool of users in real time. The blog is small but practical, with its strongest material in three areas: a published API style guide that codifies versioning and resource conventions across a dozen client teams, a homegrown API gateway built to be the single mobile-edge for a polyglot service mesh, and state-machine modeling for purchase flows where Google Play, Apple, and server states get out of sync constantly. For interviews, 'How Tinder built its API Gateway' is a clean reference for API-gateway design, and 'Tinder API Style Guide' is a useful checklist for API-design discussions.

Interview questions

• What can I learn from Tinder's engineering blog?
• Which Tinder post is most useful for API-design interviews?
• Why is Tinder's blog valuable for state-machine discussions?

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