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Compensation System Engineering

1 post · Oct 2022

What this trail covers

Shopify has engineered a new compensation system called Flex Comp, which allows employees to customize their total rewards allocation between base salary, RSUs, and stock options. This involved building a new user interface, establishing robust API contracts, and implementing advanced privacy controls for sensitive compensation data. Key technical challenges included secure eventing for analytics, managing large RSA key pairs for encryption, and designing an extensible front-end architecture to support future features like Shop Cash. The system also addresses regional regulatory differences and supports multiple languages and currencies.

All Shopify trails
  1. The Engineering Story Behind Flex Comp - ShopifyThis post details the technical implementation of Flex Comp, focusing on two key areas: GitHub permissions and event encryption. For GitHub permissions, a dedicated organization was created for the project, with granular access control enforced through specific teams within the main Shopify organization. For event encryption, an asymmetric encryption approach using RSA key pairs (4096 and 6144 bits) was implemented for sensitive compensation data sent to Kafka. The post also discusses a proposed hybrid encryption approach (symmetric + asymmetric) for larger payloads and the importance of including a payload timestamp for accurate domain-level event timing.