Senior IAM Engineer: Build Secure Identity Platforms

Klaviyo Inc.; Boston (MA); Hybrid; USD 148,000 - 222,000; Full time

Job summary

Klaviyo Inc. in Boston, MA is seeking a Senior Software Engineer for Identity and Access Management to own secure authentication and authorization services across the platform. You will lead cross-functional initiatives, mentor engineers, and shape IAM architecture as we scale.

This role requires 7+ years of production software experience and hands-on Go or Python development in a demanding environment. Base salary ranges are disclosed and accompanied by a comprehensive benefits package.

Qualifications

• 7+ years of production software experience.
• Hands-on Go or Python development.
• Experience with authentication, authorization, identity, or related security systems.
• Built networking systems, API gateways, APIs, or SDKs.
• Led complex projects spanning multiple engineers and months.
• Owns end-to-end ownership and post-launch impact.
• Clear communicator with cross-team collaboration.
• Mentors engineers and raises quality through feedback.

Responsibilities

• Lead complex projects from design through launch and long-term operation.
• Build secure, reliable services for authentication, authorization, delegation, auditing, and revocation.
• Break ambiguous problems into clear work for multiple engineers.
• Own customer impact, reliability, and technical quality in production.
• Improve architecture as scale, security, and product needs change.

Skills

Go

Python

Auth/Identity security

API gateways

Leadership

Cross-team collaboration

Mentoring

Tools

AWS

Terraform

Kubernetes

React

Django

Job description

Klaviyo Inc. in Boston, MA is seeking a Senior Software Engineer for Identity and Access Management to own secure authentication and authorization services across the platform. You will lead cross-functional initiatives, mentor engineers, and shape IAM architecture as we scale.

This role requires 7+ years of production software experience and hands-on Go or Python development in a demanding environment. Base salary ranges are disclosed and accompanied by a comprehensive benefits package.