About Quizlet
At Quizlet, our mission is to help every learner reach their goals in the most effective and enjoyable way. We’re a $1B+ learning platform trusted by two-thirds of U.S. high school students and half of college students, powering over 1 billion learning interactions each week.
We combine cognitive science with machine learning to personalize education for students, professionals, and lifelong learners. With cutting-edge AI, we’re building tools that scale globally and unlock human potential.
Position: Machine Learning Engineer
We are looking for a Machine Learning Engineer to architect and deliver scalable, production-grade ML models and services. In this role, you will own the full lifecycle of ML development—from data collection and training to deployment and monitoring—while collaborating with cross-functional teams to drive Quizlet’s AI-powered learning products forward.
Key Responsibilities
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Design, build, and deploy scalable ML models and services for global use.
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Lead end-to-end development: data pipelines, model training, deployment, and monitoring.
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Collaborate with product managers, engineers, and data teams to define ML requirements and deliver impactful solutions.
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Conduct research on emerging ML methods, algorithms, and tools to enhance Quizlet’s capabilities.
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Drive innovation in personalization, recommendation systems, NLP, and generative AI.
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Develop rigorous evaluation methods to ensure ML robustness, scalability, and efficiency.
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Partner with leadership and product teams to influence the roadmap and integrate AI-driven features.
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Build monitoring systems to track model performance, troubleshoot issues, and ensure reliability in production.
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Mentor junior engineers, lead code reviews, and establish ML engineering best practices.
Minimum Requirements
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Bachelor’s degree (or U.S. equivalent) in Data Science, Software Engineering, Electrical Engineering, or related field plus 5 years of relevant experience; OR Master’s degree plus 3 years of relevant experience.
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Strong programming experience in Python and SQL.
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2+ years of experience in:
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Machine learning model development, problem framing, and NLP.
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Working with LLMs and cutting-edge AI.
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Conducting ML research to influence product development.
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Building personalized recommendation systems using CV, NLP, or ranking.
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Using ML/deep learning libraries (scikit-learn, NumPy, Pandas, SciPy, TensorFlow, SQL, Hive, or Spark).
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Innovating algorithms in search and personalization.
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Why Join Quizlet?
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Massive impact: 60M+ active users, 1B+ learning interactions weekly.
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Cutting-edge tech: Generative AI, adaptive learning, cognitive science.
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Mission-driven: Work that makes a real difference in education.
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Strong momentum: Backed by top investors, with sustainable growth.
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Inclusive culture: Committed to diversity, equity, and belonging.
Our Commitment
Quizlet is dedicated to building an inclusive and diverse workplace. We welcome applicants of all backgrounds, including women, people of color, LGBTQ+ individuals, veterans, and people with disabilities.
Note to Recruiters: Quizlet does not accept unsolicited agency resumes. Any submitted resumes will be considered the property of Quizlet, and no fees will be paid.