Principal Engineer – Partner Platform, Apis & Ecosystem Services

Quizlet
Full-time
San Francisco, CA
$236,960 - $323,000
Posted on a month ago

Job Description

Quizlet is seeking a Principal Engineer to lead the technical design of its extensible learning ecosystem, including the Partner API platform, Connector services, and LearnOS plugin architecture. This role will shape Quizlet’s AI-powered integration layer for both human and agentic users, focusing on secure, scalable infrastructure for seamless learning experiences.

Responsibilities

  • Own and evolve the external API gateway, SDKs, and developer tooling
  • Design sandboxed plugin runtimes
  • Architect Quizlet’s participation in agent-driven ecosystems
  • Define APIs for external agents
  • Implement audit, rate limiting, and permissions
  • Design publish-subscribe infrastructure

Requirements

  • 10+ years of engineering experience with large-scale API platforms
  • Strong track record designing secure APIs, SDKs, and plugin systems
  • Deep understanding of agent frameworks
  • Experience building platform abstractions
  • Expertise with containerized services, OAuth 2.0, gRPC/REST
  • Fluency with platform security and system design
  • Proven ability to lead architectural transformation

Benefits

  • No benefits