Software Engineer II - Identity & Access Management

Klaviyo

6 hours ago

3.3 on Glassdoor

Boston, MA

Onsite

Full Time

Senior

0 applicants

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About this role

A Software Engineer II on the IAM team at Klaviyo builds and operates the company's centralized authentication and authorization platform, focusing on identity, access, and secure service APIs. The role involves designing and implementing core authN/Z capabilities, contributing to platform extraction, and collaborating with cross-functional teams to enhance security and reliability.

Skills

Qualifications

2-5+ years of professional software engineering experienceProficiency in Python, Go, or TypeScript/JavaScriptExperience building or operating web services or APIsFamiliarity with authentication or authorization conceptsExposure to CI/CD pipelines and modern development workflows

About Klaviyo

klaviyo.com

Klaviyo is a B2C CRM and marketing automation platform that unifies AI-powered email and SMS to help ecommerce brands drive growth and retention. It uses customer data, advanced segmentation, and automation flows to deliver personalized, omnichannel experiences across email, SMS, WhatsApp, and more — including AI-driven capabilities via K:AI Agents. Klaviyo emphasizes measurable results with analytics, testing, and integrations with major ecommerce platforms to boost revenue and lifetime value. Companies use it to build targeted lifecycle campaigns, personalized messaging, and data-driven retention strategies at scale.