Senior Software Engineer - Email Platforms

Klaviyo is a company that empowers creators to own their destiny by making first-party data accessible and actionable. They are seeking a Senior Software Engineer for their Email Platforms team to build scalable and reliable email delivery infrastructure, focusing on high-throughput systems and service performance.

Responsibilities:

• Own and drive key components of the email pipeline architecture
• Design and implement scalable, high-throughput services in Go
• Develop systems that manage message queues and email delivery
• Help ensure our systems scale with customer growth, especially as we bring on larger enterprise accounts
• Collaborate cross-functionally to ensure the highest standards of performance, reliability, and deliverability
• Transform workflows by putting AI at the center, building smarter systems and ways of working from the ground up

Requirements:

• Senior-level backend engineer with strong systems design skills
• Proficient in Go (required)
• Experienced working with high-throughput distributed systems
• Familiar with message queues (e.g., Pulsar, Kafka, RabbitMQ, SQS)
• Comfortable working independently on projects from design through production
• Able to thrive in a mostly remote team and deliver in a high-autonomy environment
• You've already experimented with AI in work or personal projects, and you're excited to dive in and learn fast. You're hungry to responsibly explore new AI tools and workflows, finding ways to make your work smarter and more efficient
• Experience with Python is a plus
• Bonus: Experience with email infrastructure, MTAs, deliverability, or mailops