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Staff Software Engineer - Payments

Quizlet

$220,000 - $265,000
Nov 18, 2025
San Francisco, CA, United States of America
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Quizlet's Payments team needs to ensure seamless financial transactions, subscription lifecycles, and payment flows for millions of users globally, requiring reliable, scalable, and secure infrastructure to support high payment volumes and subscription services, while also driving innovation and optimizing payment processes to expand the subscription business.

Requirements

  • 8+ years of experience in backend development with a strong emphasis on building large-scale distributed systems
  • Familiarity with modern front-end technologies (e.g., React, NextJS) and the ability to build and maintain user-facing components, though deep UI expertise is not required
  • Experience with modern backend frameworks (e.g., Go, Node.js, Python) and relational databases (e.g., MySQL, PostgreSQL)
  • Expertise in building and scaling APIs, especially in the payments and subscription space
  • Strong system architecture and design skills with a focus on scalability, reliability, and performance optimization
  • Proven ability to lead technical projects from inception to completion and mentor other engineers
  • Strong interest in solving complex engineering problems, with a focus on payments, financial systems, and transactional workflows

Responsibilities

  • Design, build, and maintain large-scale backend services that handle payments and subscriptions for millions of users
  • Play an active role in defining Quizlet’s overall payments strategy, driving innovation and ensuring scalability
  • Develop user-facing components and UI features that provide intuitive payment and subscription experiences, using modern front-end technologies such as React
  • Collaborate with cross-functional teams, including product managers, UX/UI designers, and frontend engineers, to ensure a seamless user experience in all payment flows
  • Build reusable UI components and abstractions to improve development speed and consistency in payment-related user interfaces
  • Ensure the system's reliability and uptime through robust architecture, system design, and incident response
  • Provide mentorship to junior and mid-level engineers and contribute to the technical growth of the team

Other

  • onsite position in our San Francisco office
  • employees be in the office at a minimum of three days a week: Monday, Wednesday, and Thursday and as needed by your manager or the company.
  • While primarily focused on backend development, you will also contribute to building and optimizing user-facing features related to payment flows and subscription management, ensuring seamless, intuitive, and performant experiences.
  • We’re happy to share that this is an onsite position in our San Francisco office.
  • We believe that this working environment facilitates increased work efficiency, team partnership, and supports growth as an employee and organization.