Sephora Senior Data Scientist

San Francisco • USA

Friday, October 3, 2025

Sephora, a leading beauty retailer, is part of the prestigious LVMH Moët Hennessy Louis Vuitton group, renowned for its commitment to luxury and innovation. As an employer, Sephora inspires its employees to excel and fosters an environment where diversity is celebrated, and creativity is encouraged. The company is dedicated to redefining beauty standards and empowering individuals to express their unique identities.

1. Design, develop, and deploy intelligent AI systems for content curation and business needs.
2. Integrate complex business goals into recommendation and placement awareness models.
3. Collaborate with business teams to translate strategic objectives into actionable data science solutions.
4. Lead research, development, and integration of Large Language Models (LLMs) into core systems.
5. Partner with broader Gen AI initiatives to ensure consistency in consumer experience across platforms.
6. Develop foundational code aligned with company-wide AI standards.
7. Build and optimize MLOps pipelines for efficient model deployment.
8. Create reusable infrastructure and tools for engineering teams.

1. 5-7+ years of experience in building and deploying machine learning models in production environments.
2. 5+ years of experience with Databricks, Spark (or PySpark), and big data.
3. 7+ years of proficiency in Python and familiarity with data science libraries.
4. 4+ years of hands-on experience with Generative AI models, LLMs, or related architectures.

1. Proficiency with PyTorch, TensorFlow, or JAX, and SQL.
2. Skills in deploying and serving large-scale models, including model inference, monitoring, and scaling.
3. Solid understanding of Generative Architectures such as Transformers and diffusion models.
4. Knowledge of data preprocessing for LLMs.
5. Strong communication skills.

5-7+ years of experience in machine learning model development and deployment, with a focus on personalization and generative AI.

Bachelor's degree in Computer Science, Data Science, or a related field.

The annual base salary range is $142,545.00 - $159,315.00, with potential bonuses.

Sephora offers comprehensive health, dental, and vision plans, a superior 401(k) plan, various paid time off programs, employee discounts, life and disability insurance, flexible spending accounts, and an employee referral bonus program.

Sephora's culture is one of innovation and inclusivity, where employees are empowered to be their best selves. As part of the LVMH family, Sephora has a global reach and impact, fostering a disruptive spirit and encouraging continuous learning and evolution. The company values diversity and is committed to providing reasonable accommodations to applicants with disabilities.