Tech Stack

Description

You will provide technical leadership to a team building and scaling Klaviyo's mobile messaging infrastructure across SMS, RCS, WhatsApp, and future channels. You'll drive architecture, own critical components, and mentor engineers while shaping the future of mobile messaging at Klaviyo.

Requirements

• 8+ years of engineering experience with strong backend and systems design skills
• Proficient in Python and/or Go
• Experience with high-throughput distributed systems
• Skilled in system design and scaling infrastructure using AWS
• Strong business and product mindset

Responsibilities

• Lead a team of engineers building and scaling mobile messaging infrastructure across SMS, RCS, WhatsApp, and future channels
• Own and drive the architecture of key components in the mobile messaging pipeline
• Design and implement scalable, high-throughput services in Python and Go
• Build systems ensuring reliable delivery while managing carrier compliance, regulations, and international messaging
• Grow and mentor engineers while shaping the future of mobile messaging