Senior Software Engineer – Channel Rendering

Klaviyo; Boston (MA); Remote; USD 152,000 - 228,000; Full time

Job summary

A leading tech company in Boston is seeking a Senior Backend Engineer to drive key components of their email pipeline architecture. This role involves designing high-throughput services in Go and managing message delivery systems. The ideal candidate is proficient in Go, familiar with distributed systems, and able to thrive in a remote, autonomous environment. Competitive salary range of $152,000 to $228,000 USD offered.

Qualifications

• Senior-level backend engineer with strong systems design skills.
• Proficient in Go (required) with experience in Python as a plus.
• Experienced in high-throughput distributed systems.

Responsibilities

• Own and drive key components of the email pipeline architecture.
• Design and implement scalable, high-throughput services in Go.
• Develop systems to manage message queues and email delivery.

Skills

Backend engineering

Systems design

Proficient in Go

Experience with Python

Working with high-throughput distributed systems

Familiar with message queues

Tools

AWS

DynamoDB

Kubernetes

Terraform

Job description

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit careers.klaviyo.com to see how we empower creators to own their own destiny.

About the Team

The Channel Rendering and Engagement (CRE) team is responsible for the high-performance systems that power the rendering, delivery, and engagement tracking of communications across all channels at Klaviyo—including email, SMS, push, and more. We build and maintain the core infrastructure that ensures every message is generated, delivered, and tracked reliably, at scale, and in compliance with industry standards. This role will contribute to architecture and implementation of complex distributed backend services, ensuring high throughput and low latency. Success in this role relies on both technical excellence and the ability to work across teams and roles.

How You Will Make a Difference

• 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

Who You Are

• 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)
• 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

Base Pay Range For US Locations

Base Pay Range For US Locations:
$152,000—$228,000 USD

Massachusetts 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.

Klaviyo is committed to a policy of equal opportunity and non-discrimination

Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls.

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By clicking “Submit Application” you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice. If you do not wish for Klaviyo to process your Personal Data, please do not submit an application.