Software Engineer Ii - Identity & Access Management (core Infra Io)
Klaviyo
Boston, MA, United States
On-site
Backend or full-stack services
Authentication and authorization concepts
Web services or apis
You’ll help design and build the services that every product team and customer relies on login, sessions, permissions, and secure service APIs are all on your roadmap
Job Summary
You’ll help design and build the services that every product team and customer relies on login, sessions, permissions, and secure service APIs are all on your roadmap.
Your work will directly affect engineering velocity (auth as a shared service), Enterprise deal wins (SSO/SCIM/RBAC/ReBAC), and Data Residency (region-aware auth flows).
You’ll work on distributed systems, modern IdP integration, machine auth, and secure-by-default patterns with strong mentorship and meaningful ownership.
Matching Summary
You’ll help design and build the services that every product team and customer relies on login, sessions, permissions, and secure service APIs are all on your roadmap.
Skills & Requirements
Must-have
backend or full-stack services
authentication and authorization concepts
web services or APIs
relational databases and/or caches
CI/CD pipelines and modern development workflows
Python, Go, or TypeScript/JavaScript
Nice-to-have
enterprise SSO and SCIM
cloud-native infrastructure
high-scale distributed systems
observability stacks
adjacent Core IO domains
Key Requirements
2-5+ years of professional software engineering experience
Proficiency in Python, Go, or TypeScript/JavaScript
Experience building or operating web services or APIs
Familiarity with authentication or authorization concepts