Quizlet · 7 hours ago
Principal Engineer – Partner Platform, APIs & Ecosystem Services
San Francisco, CA
Full-time
Onsite
Lead/Staff
$237K/yr - $323K/yr
10+ years expQuizlet is a leading learning platform that aims to enhance the educational experience for students. They are seeking a Principal Engineer to lead the technical design of their Partner API platform and learning ecosystem, focusing on creating secure and scalable infrastructures for seamless learning experiences.
E-LearningEdTechEducationInternetKnowledge Management
Responsibilities
API & Partner Platform Architecture: Own and evolve the external API gateway, SDKs, and developer tooling
Connector Runtime & LearnOS: Design sandboxed plugin runtimes to support real-time learning triggers across platforms like Discord, Google Calendar, Grammarly
Model Context Protocol (MCP) Interoperability: Architect Quizlet’s participation in agent-driven ecosystems, to integrate into AI services, like ChatGPT, Comet, Chrome
Agentic Enablement: Define APIs that allow external agents to create study sets, track progress, or initiate learning actions programmatically
Secure Developer Experience: Collaborate with Legal and T&S to implement audit, rate limiting, and permissions for third-party integrations
Data Exchange & Event Streams: Design publish-subscribe infrastructure for syncing learning activity across systems
Qualification
Required
10+ years of engineering experience with large-scale, multi-tenant API or developer platforms
Strong track record designing extensible, secure APIs, SDKs, and plugin systems
Deep understanding of agent frameworks like MCP, protocol design, and AI/LLM interoperability
Significant experience building platform abstractions and developer enablement layers
Hands-on expertise with containerized services, OAuth 2.0, gRPC/REST, and event-driven systems
Passion for building platforms that enable scale, intelligence, and trust
Fluency with platform security, privacy, and system design
Proven ability to lead architectural transformation while shipping continuously
Benefits
20 vacation days that we expect you to take!
Competitive health, dental, and vision insurance (100% employee and 75% dependent PPO, Dental, VSP Choice)
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 to participate in volunteer programs of choice
Company
Quizlet
Quizlet is a learning platform that uses activities and games to help students practice and master what they’re learning.
201-500 employees
H1B Sponsorship
Quizlet has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (12)
2024 (10)
2023 (7)
2022 (9)
2021 (1)
2020 (8)
Funding
Current Stage
Growth StageTotal Funding
$62MKey Investors
General AtlanticIcon Ventures
2020-05-13Series C· $30M
2018-02-06Series B· $20M
2015-11-23Series A· $12M
Leadership Team
Kurt Beidler
Chief Executive Officer
David Margulius
Board Member and Co-Founder
Recent News
2025-10-31
South Africa Today
2025-09-12
Mark Cuban Foundation
2025-09-09
Company data provided by crunchbase