> Markdown version of [/jobs/ext/4618065-senior-software-engineer-platform-engineering-klaviyo](https://www.wearedevelopers.com/jobs/ext/4618065-senior-software-engineer-platform-engineering-klaviyo). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer, Platform Engineering | Klaviyo

- **Company:** Briefed Inc.
- **Location:** Boston, MA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Cloud Engineering, Databases, Linux, Distributed Systems, Python (Programming Language), Klaviyo Email and SMS Marketing, Software Application Programming, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Low Latency, Api Gateway, Terraform, Golang
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_e3f41b4858153526ce4c9d00ff06953d

## About the Role

* BA or BS in Computer Science or a related field, or equivalent experience
 * 5+ years of experience operating and scaling complex distributed systems
 * Experience in a cloud-native environment
 * Proven experience developing applications in Python and Go
 * Experience operating Kubernetes at scale
 * Experience with Terraform
 * Fundamental understanding of Linux and all layers of the networking stack
 * Experience in a subset of platform areas such as Kubernetes, infrastructure as code, API gateways and traffic management, observability, or asynchronous processing tooling
 * Experience or interest in responsibly applying AI tools to your work

Skills

Technical Skills

 * Python and Go
 * AWS, Kubernetes, Terraform
 * Distributed systems and cloud-native architecture
 * Linux and networking
 * Observability, API gateways, and asynchronous processing

Soft Skills

 * Mentoring and pairing with other engineers
 * Understanding engineering teams' needs
 * Willingness to learn quickly

## Description

Klaviyo's Platform Engineering team provides infrastructure primitives, platforms, tooling, and guidance to Klaviyo's engineering organization. This role focuses on core platform services and developer experience. As a Senior Software Engineer, you will craft a paved path for product teams to manage their services and applications, owning the design and development of foundational platform services that help engineering teams move faster with confidence., * Ship foundational services that let Klaviyo engineering move faster with confidence

 * Build a deep understanding of engineering needs across the organization, guiding the design of platform primitives (infrastructure, databases, queuing, etc.) that align with the platform's vision and empower product teams
 * Design, develop, and deliver software that improves the availability, scalability, latency, and efficiency of Klaviyo's core platforms, helping teams meet their SLOs
 * Design systems and processes that enable highly available, scalable applications
 * Use Python, Go, AWS, and Kubernetes to advance Klaviyo's platform
 * Mentor and pair with other engineers, focusing on performance, self-healing systems, configuration as code, and defensive programming