Software Engineer – Trust & Safety

United States·San FranciscoFull-timesenior

Software EngineerSoftware Engineering

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Quick Summary

Overview

About Quizlet: At Quizlet, our mission is to help every learner achieve their outcomes in the most effective and delightful way. Our $1B+ learning platform serves tens of millions of students every month, including two-thirds of U.S. high schoolers and half of U.S.

Technical Tools

javascriptpythontypescriptdistributed-systemsetlmachine-learningsecurity-best-practices

About Quizlet:

At Quizlet, our mission is to help every learner achieve their outcomes in the most effective and delightful way. Our $1B+ learning platform serves tens of millions of students every month, including two-thirds of U.S. high schoolers and half of U.S. college students, powering over 2 billion learning interactions monthly.

We blend cognitive science with machine learning to personalize and enhance the learning experience for students, professionals, and lifelong learners alike. We’re energized by the potential to power more learners through multiple approaches and various tools.

Let’s Build the Future of Learning

Join us to design and deliver AI-powered learning tools that scale across the world and unlock human potential.

About the Role:

As a Software Engineer, you will take ownership of key systems powering Quizlet’s Trust and Safety infrastructure. You’ll design and implement scalable content moderation, abuse prevention, and policy enforcement solutions that ensure our millions of learners can connect safely and confidently.

You’ll collaborate closely across engineering, security, and product to embed safety, reliability, and policy adherence into our platform.

The team is hiring multiple levels (Staff - Sr. Staff Engineers), with leveling determined through the interview process.

We’re happy to share that this is an onsite position in our San Francisco office. To help foster team collaboration, we require that employees be in the office a minimum of three days per week: Monday, Wednesday, and Thursday and as needed by your manager or the company. We believe that this working environment facilitates increased work efficiency, team partnership, and supports growth as an employee and organization.

Scale consent and messaging systems to meet new product and regulatory needs

Design and deliver backend services for user trust, safety, and compliance features, focusing on risk-based access and anomaly detection

Scale consent and messaging systems to meet new product, trust, safety, and regulatory needs

Design, implement, productionize, and improve AI-powered solutions to effectively manage and enforce Trust and Safety standards across multiple use cases

Lead initiatives that enhance reliability, observability, and performance

Collaborate cross-functionally with security, legal, data science and marketing teams

Mentor junior engineers and contribute to engineering best practices

7+ years of backend or platform engineering experience building and operating production systems

Strong experience with one or more of Node.js, Go, Python, or TypeScript

Solid background in distributed systems, service-oriented architectures, and data pipelines

Experience designing and implementing reliable, observable, and maintainable systems, with a focus on safe failure modes

Working knowledge of OAuth2, SSO, MFA, and platform security best practices

Familiarity with privacy frameworks and compliance requirements (e.g., GDPR, COPPA, DMCA, Content Moderation)

Experience with implementing feedback mechanisms for moderator interactions to facilitate the retraining of Machine Learning models.

Familiarity with the integration of multi-modal Machine Learning models for the identification of abusive material across text, image, and other UGC data formats.

Experience participating in on-call rotations, incident response, and postmortem-driven improvements

Proven ability to deliver complex features end-to-end, from design through production rollout

Strong communication and collaboration skills

Quizlet is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Salary transparency helps to mitigate unfair hiring practices when it comes to discrimination and pay gaps. Total compensation for this role is market competitive, including a starting base salary of $200,000 - $300,000, depending on location and experience, as well as company stock options

Collaborate with your manager and team to create a healthy work-life balance

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 401(k) 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