Senior Software Engineer - Email Platforms jobs in United States
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Klaviyo · 12 hours ago

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 to join their Email Platforms team, which focuses on building scalable and reliable email delivery infrastructure to support enterprise-scale operations.

AdvertisingAnalyticsE-CommerceMarketing AutomationSoftware
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Comp. & Benefits
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H1B Sponsor Likelynote

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

Qualification

GoHigh-throughput systemsDistributed messagingPythonMessage queuesAWSKubernetesTerraformGin (Go)Django (Python)Email infrastructureAI experimentation

Required

Senior-level backend engineer with strong systems design skills
Proficient in Go (required). experience with Python is a plus
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

Preferred

Bonus: Experience with email infrastructure, MTAs, deliverability, or mailops

Benefits

Participation in the company’s annual cash bonus plan
Variable compensation (OTE) for sales and customer success roles
Equity
Sign-on payments
A comprehensive range of health, welfare, and wellbeing benefits based on eligibility

Company

Klaviyo is an automation and email platform designed to help grow businesses.

H1B Sponsorship

Klaviyo has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (47)
2024 (29)
2023 (24)
2022 (27)
2021 (21)
2020 (8)

Funding

Current Stage
Public Company
Total Funding
$1.35B
Key Investors
ShopifySands Capital VenturesAccel
2025-08-13Post Ipo Secondary· $195.06M
2025-05-14Post Ipo Secondary· $372.95M
2023-09-20IPO

Leadership Team

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Andrew Bialecki
CEO
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Ed Hallen
Co-Founder, Chief Strategy Officer, Board Member
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Company data provided by crunchbase