Senior Software Engineer - SecEng at Klaviyo

Klaviyo

Boston, MA·12h ago

SeniorFull-timePythonGolangRustReactDjangoAWSKubernetesTerraformMySQLRedis

Salary Range

$132,600 - $179,400 /year

Estimated

This salary is estimated based on similar roles. The actual salary may vary.

About the Role

We are looking for a Senior Software Engineer to join the Infrastructure Security team at Klaviyo. This role involves building and operating cloud-native security services that help engineers ship secure software with confidence.

Key Responsibilities

→Design, build, and maintain cloud-native security services used across Klaviyo
→Own meaningful components and services end to end, from implementation through production operation
→Improve the availability, scalability, latency, and efficiency of infrastructure security systems
→Collaborate with senior engineers on system design and architecture
→Identify performance, reliability, and security issues in distributed systems
→Work extensively with technologies such as Python, Golang, AWS, Kubernetes, and Terraform
→Participate in design reviews, code reviews, and whiteboarding sessions
→Contribute to operational excellence through monitoring, alerting, and incident response
→Build tooling, automation, and documentation that improve developer experience and security posture
→Partner with product-facing and platform engineers to ship impactful, secure solutions

Requirements

✓6+ years of experience building and operating cloud-native, distributed systems in production
✓Comfortable writing production-quality code in Python or Go
✓Hands-on experience with AWS and understanding of managed services, networking, and IAM concepts
✓Experience working with containers and orchestration platforms such as Kubernetes
✓Understanding of scalable, multi-tenant architectures and secure system design
✓Comfortable participating in on-call and responding to production issues
✓Excellent communicator and collaborator
✓Ability to handle complex systems in outage situations
✓Experience with AI in work or personal projects
✓Proactive in finding ways to improve workflows, architecture, tooling, or team processes
✓Mentor and support other engineers
✓Experience building security tooling, working with security infrastructure systems like Vault, AWS IAM, WAFs
✓Experience with service meshes, API gateways, or zero-trust architectures
✓Experience improving performance in distributed systems or debugging complex multi-service workflows