Klaviyo

Senior Software Engineer - Infrastructure Security

Klaviyo
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3 months ago
Boston, MA, USASenior
H1B sponsor

Base Salary

$148k - $222k/yr

Responsibilities

  • Design, build, maintain, and operate cloud-native security services used across Klaviyo.
  • Own components and services end to end from implementation through production operation.
  • Improve the availability, scalability, latency, efficiency, reliability, and security of infrastructure systems.
  • Identify and resolve performance, reliability, and security issues in distributed systems.
  • Build tooling, automation, and documentation that improve developer experience and security posture.
  • Participate in design reviews, code reviews, technical discussions, and whiteboarding sessions.
  • Contribute to monitoring, alerting, incident response, on-call operations, and reduction of operational toil.
  • Partner with product-facing and platform engineers to deliver secure solutions.
  • Mentor and support other engineers and help refine technical specifications.

Requirements

  • 6+ years of experience building and operating cloud-native distributed systems in production.
  • Production-quality programming experience with Python or Go.
  • Hands-on experience with AWS or a similar cloud provider, including managed services, networking, and IAM concepts.
  • Experience with containers and orchestration platforms such as Kubernetes.
  • Experience writing infrastructure as code with Terraform.
  • Knowledge of scalable multi-tenant architectures, secure system design, reliability, performance, observability, and security.
  • Ability to participate in on-call rotations, respond to production issues, conduct root-cause analysis, and prevent recurrence.
  • Ability to lead technical discussions, write design documents and RFCs, and collaborate with stakeholders.
  • Experience mentoring engineers and contributing to design and code reviews.
  • Preferred experience includes security tooling, Vault, AWS IAM, WAFs, service meshes, API gateways, zero-trust architectures, and performance debugging in distributed systems.
  • Experience experimenting with AI and willingness to learn and use AI tools responsibly.

Benefits

  • Based in Boston, Massachusetts, with work authorization and relocation support.
  • Comprehensive health, welfare, and wellbeing benefits based on eligibility.
  • Potential annual cash bonus, equity, and sign-on payments in addition to base salary.
  • Up to 10% travel may be required, coordinated in advance.

Tech Stack

Apache KafkaAWSDjangoFastAPIGoKubernetesMySQLPythonRabbitMQReactRedisTerraformVault

Categories

Klaviyo

About Klaviyo

1,001-5,000 employees

Klaviyo builds a subscription SaaS platform that lets e-commerce and consumer brands use first-party data to run targeted email, SMS, and push campaigns, with built-in automation and analytics. The product also includes B2C CRM features for segmentation, A/B testing, and customer lifecycle workflows. Founded in 2012 and headquartered in Boston, it is a public company (NYSE: KVYO) used by brands such as Mattel and Glossier.

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