Senior Software Engineer - Billing
Klaviyo(8 days ago)
About this role
Senior Software Engineer on Klaviyo’s Billing & Monetization team focused on building systems and products that support billing, subscriptions, payments, pricing, and international expansion for ecommerce customers. The role contributes to the growth and reliability of Klaviyo’s platform by developing scalable services and collaborating across product and engineering teams.
Required Skills
- REST APIs
- Pub/Sub
- Integrations
- Fullstack
- Payments
- Python
- Django
- React
- Typescript
- Kafka
+2 more
About Klaviyo
klaviyo.comKlaviyo is a B2C CRM and marketing automation platform that unifies AI-powered email and SMS to help ecommerce brands drive growth and retention. It uses customer data, advanced segmentation, and automation flows to deliver personalized, omnichannel experiences across email, SMS, WhatsApp, and more — including AI-driven capabilities via K:AI Agents. Klaviyo emphasizes measurable results with analytics, testing, and integrations with major ecommerce platforms to boost revenue and lifetime value. Companies use it to build targeted lifecycle campaigns, personalized messaging, and data-driven retention strategies at scale.
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