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    Senior Software Engineer - Email Platforms
    Posted Oct 9, 2025
    Remote
    Boston, Usa
    About Klaviyo
    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
    Requirements
    Senior-level backend engineer with strong systems design skills Proficient in Go (required). experience with Python is a plusExperienced working with high-throughput distributed systems Familiar with message queues (e.g., Pulsar, Kafka, RabbitMQ, SQS) Bonus: Experience with email infrastructure, MTAs, deliverability, or mailops Comfortable working independently on projects from design through production Able to thrive in a mostly remote team and deliver in a high-autonomy environment Technologies We Use: Languages: Go, Python Infrastructure: AWS, DynamoDB, Kubernetes, Terraform Frameworks: Gin (Go), Django (Python) Messaging: Pulsar, Kafka, other message queues Email Systems: MTA’s (GreenArrow), Proxy servers, email deliverability tools, monitoring tools   We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025. Please see the independent bias audit report covering our use of Covey hereMassachusetts Applicants:It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
    Senior Software Engineer - Email Platforms at Klaviyo