Principal Full-Stack Data Scientist - Foundational Models

For our client, we are seeking a Principal Full-Stack Data Scientist - Foundational Models to join the team of a leader in the Retail & Consumer Goods space. This role will help shape advanced machine learning capabilities that power personalization and recommendation experiences at scale. You will own work across the full ML lifecycle, from problem framing and experimentation to deployment and monitoring, with a strong focus on foundational modeling approaches. The role also involves partnering closely with cross-functional teams to translate business needs into robust data science solutions that improve model performance and customer outcomes. Location: Remote - US based candidates only, no visa sponsorship available Compensation: $200,000 – $237,000 annually Responsibilities Design and productionize machine learning models for personalization and recommendations Advance foundational modeling capabilities such as embeddings and ranking systems Explore and apply advanced ML techniques, including LLMs and generative approaches Manage the full ML lifecycle from problem formulation to deployment and monitoring Conduct rigorous evaluations and experiments to assess model performance Work with large-scale datasets using Python, SQL, and distributed tools Collaborate with cross-functional teams to translate needs into ML capabilities Qualifications Bachelor's degree in a quantitative field; Master's or PhD preferred 8+ years of experience in machine learning, particularly in personalization Proficiency in Python for production-grade code development Experience with large-scale datasets using SQL and distributed technologies such as Spark Familiarity with deep learning frameworks such as PyTorch or TensorFlow Strong understanding of model evaluation techniques, including A/B testing Excellent communication skills for both technical and non-technical audiences Benefits Collaborative and innovative work environment Diverse perspectives valued and encouraged Focus on equity and sustainability in all operations Strong team culture with emphasis on relationships and grit Opportunities for professional growth and problem-solving ownership Comprehensive health and wellness benefits Our client is an equal opportunity employer. We encourage you to apply even if you don’t meet every qualification—your background could be exactly what this team needs.