Principal Engineer, Enterprise Scalability
KlaviyoBoston, Massachusetts, United States
Posted December 24, 2025
248000 - 372000 USD year
Full Time
About the Company
Klaviyo empowers creators to own their destiny by making first-party data accessible and actionable like never before.
Job Description
At Klaviyo, we value unique backgrounds and perspectives. We're looking for a Principal Engineer, Enterprise Scalability to lead performance, reliability, and large-tenant readiness. This role involves driving platform-wide architectural change, hunting bottlenecks, and optimizing systems.
Requirements
- 12+ years of experience scaling multi-tenant SaaS
- Technical expertise in performance engineering, capacity planning, sharding/partitioning, caching/back-pressure, multi-region readiness, and high-volume migrations
- AI tools and automation expertise
- Cross-org influence and communication skills
- AI fluency and responsible use of AI
Benefits
- Annual cash bonus plan
- Variable compensation (OTE) for sales and customer success roles
- Equity
- Sign-on payments
- Comprehensive range of health, welfare, and wellbeing benefits