Principal Engineer – User Identity, Messaging & Trust Infrastructure
QuizletSan Francisco, California, United States
Posted October 28, 2025
276700 - 323000 USD year
Full Time
About the Company
Quizlet is a leading education technology company that provides innovative learning tools to empower students and teachers globally. With over 60 million active users and a valuation of $1 billion, Quizlet offers high-quality resources across iOS and Android platforms, making it a prominent player in the consumer learning space.
Job Description
Quizlet is a rapidly growing learning platform with a $1B+ platform serving over 2 billion interactions monthly. They are seeking a Principal Engineer to architect the future of identity, account management, user communication infrastructure, and trust & safety systems, focusing on secure and intelligent learning. The role involves driving evolution of core user platform, strategic investments in authentication, and collaboration with multiple teams.
Requirements
- 10+ years of backend/platform engineering experience
- 5+ years in identity, messaging, or trust systems
- Experience in modernizing legacy account systems and building privacy-centric user platforms
- Significant hands-on experience in security, compliance, and messaging infrastructure
- Hands-on experience with Node.js, Go, Python, or TypeScript
- Familiarity with tools like Braze, Segment, or equivalent martech stacks
- Passion for building platforms that enable scale, intelligence, and trust
Benefits
- Competitive health, dental, and vision insurance
- Employer-sponsored 401k plan with company match
- Access to LinkedIn Learning and other resources to support professional growth
- Paid Family Leave, FSA, HSA, Commuter benefits, and Wellness benefits
- 40 hours of annual paid time off