Senior Lead Software Engineer, Developer Infrastructure

Company: Klaviyo
Location: Boston, United States
Type: hybrid
Posted: Aug 21, 2026
Views: 1
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✨ AI Summary

Klaviyo, a company in the marketing automation and customer data platform space, is hiring a Senior Lead Software Engineer for Developer Infrastructure in Boston. This senior-level role focuses on building and improving internal developer tooling and infrastructure. The main tech stack is not explicitly listed, but typical for this role includes languages like Go, Python, or Java, along with cloud platforms like AWS. Requires extensive experience in software engineering, with a lead or senior title, and a strong background in developer productivity or infrastructure.

_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?…

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About the Company

Name: Klaviyo
Website: https://4dayweek.io

4dayweek.io is a job board dedicated to helping job seekers find roles at companies committed to better work-life balance, including 4-day weeks, 9-day fortnights, flexible schedules, and more. It features thousands of live job listings, company profiles, and resources about reduced-hour work arrangements. The platform also offers an Auto Apply feature (JobCopilot) that automatically applies to matching roles on behalf of users. It is trusted by over 581,000 job seekers and has been featured in Bloomberg, The Guardian, CNBC, Business Insider, and Indeed.

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