Lead AI Engineer

About e.l.f. Beauty

e.l.f. Beauty, Inc. champions clean, cruelty free beauty with exceptional value since 2004. With a multi-brand portfolio that includes e.l.f. Cosmetics, e.l.f. SKIN, Well People, Keys Soulcare, and Naturium, we have paved our way to becoming the #2 mass cosmetics brand in the US and the fastest growing among the top 5.

Job Summary

As the Lead AI Engineer at e.l.f. Beauty, you will design, develop, and deploy advanced AI solutions across our enterprise. You will lead the development of production-grade AI and machine learning models, manage the entire model lifecycle, collaborate with cross-functional teams, and mentor junior engineers.

Responsibilities

• Design and develop robust AI/ML models (recommendation engines, NLP, computer vision, forecasting).
• Manage model lifecycle from prototyping to deployment and monitoring.
• Collaborate with product, data engineering, MLOps and business teams.
• Perform feature engineering, data wrangling, and exploratory analysis.
• Build and maintain scalable AI infrastructure using cloud services and MLOps best practices.
• Mentor junior AI/ML engineers.
• Continuously improve models with new research and retraining techniques.

Requirements

• Bachelor’s or Master’s in Computer Science, Data Science, ML or related field.
• 14+ years of IT experience; minimum of 6+ years in AI/ML engineering.
• Experience with LLM-based applications and prompt-driven architectures.
• Solid understanding of RAG patterns, vector databases, and containerized services in AWS ECS.
• Familiarity with AWS Bedrock, AWS RDS, and CI/CD pipelines using Terraform or AWS CDK.
• Proficiency in Python and experience with React front-end environments.

Key Skills/Competency

• AI Engineering
• Machine Learning
• Production Models
• Cloud Infrastructure
• MLOps
• LLM Applications
• Python
• Data Engineering
• Containerization
• CI/CD