Senior Software Engineer - Identity and Access Management

Klaviyo·Boston, MA·Posted 15 September 2026

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About the role

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? Visit klaviyo.com/careers to see how we empower creators to own their own destiny. Senior Software Engineer, Identity and Access Management At Klaviyo, we value the different backgrounds, experiences, and perspectives that each Klaviyo brings to work. If you are close, but not an exact match, we hope you will still apply. About the team Identity and Access Management (IAM) controls how people, services, integrations, and AI agents access Klaviyo. We build authentication and authorization for users, agents, and machines that access the Klaviyo platform. This is a chance to solve hard identity problems that affect nearly every part of our product. How you will make an impact As a Senior Software Engineer, you will lead complex projects across…

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