Sr. Lead Software Engineer - Messaging Infrastructure

Klaviyo

5 hours ago

3.3 on Glassdoor

Boston, MA

Onsite

Full Time

Senior

0 applicants

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About this role

A Senior Lead Software Engineer at Klaviyo owns the architecture, health, and scaling of the Messaging Infra platform with a focus on high-volume message delivery. The role involves defining technical strategy, building and improving message delivery systems across multiple channels, and driving technical leadership to ensure a cohesive technical vision.

Skills

Qualifications

BA or BS Degree in Computer Science, related field, or equivalent experience

About Klaviyo

klaviyo.com

Klaviyo 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.