Decision Scientist

Belk•Charlotte, NC

About The Position

The Decision Scientist will support the design, development, and deployment of Next Best Action (NBA) models that determine the optimal marketing action across channel, promotion, and creative. These models power decisioning across owned channels including email, SMS, and push, enabling personalized, data-driven customer engagement at scale. This role sits at the intersection of marketing strategy and data science, and requires an ability to work collaboratively with marketing, technology, and merchandising partners.

Requirements

Bachelor’s Degree in Statistics, Mathematics, Computer Science, Data Science, Economics, or related quantitative field required.
2-4 years applied data science, quantitative analytics, or related work; hands-on experience with predictive modeling in an academic or professional setting required.
Expert-level proficiency in Python and/or R for statistical modeling, machine learning, and data manipulation
Deep knowledge of supervised and unsupervised ML algorithms: gradient boosting (XGBoost, LightGBM), neural networks, clustering, and survival models
Strong SQL skills for complex data extraction and feature engineering from large enterprise datasets
Proven ability to frame ambiguous business problems into structured analytical approaches and model designs
Strong intuition for incrementality, experimental design, and the distinction between correlation and causal lift
Exceptional ability to communicate complex quantitative concepts to non-technical stakeholders, including marketing leadership
Demonstrated experience influencing cross-functional teams through data and analytical storytelling
Ability to work collaboratively in a team environment and communicate analytical findings to non-technical partners
Ability to manage time and workload effectively with flexibility to shift priorities based on business need
Must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future, this includes OPT.
Belk will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa).

Nice To Haves

1-2 years building models in a retail, e-commerce, marketing, or related business context preferred.
Experience deploying models into production environments; familiarity with CDP platforms (e.g., Salesforce Marketing Cloud, Adobe, Braze) a strong plus.
Awareness of or exposure to reinforcement learning, multi-armed bandit, or contextual bandit approaches; willingness to develop deeper expertise
Familiarity with cloud-based data environments (Snowflake, Databricks) and interest in developing model deployment skills
Working knowledge of customer lifecycle dynamics and an interest in CRM and loyalty marketing applications

Responsibilities

Design and build end-to-end Next Best Action (NBA) decision models that optimize marketing channel, promotion type, creative variant, and send timing at the individual customer level
Support or contribute to reinforcement learning, multi-armed bandit, or contextual bandit frameworks as part of the NBA decisioning engine, with opportunity to grow expertise in this area
Develop propensity models (purchase, churn, reactivation, category affinity) that serve as inputs to the NBA decisioning engine
Build and maintain customer-level response models measuring incremental lift from marketing interventions across email, SMS, and push
Collaborate with marketing technology teams to deploy models into real-time or near-real-time decisioning environments (e.g., via API or CDP integration)
Design and analyze A/B and multivariate experiments to measure model performance and continuously refine decisioning logic
Partner with campaign operations to translate model outputs into actionable audience segments, suppression lists, and treatment assignments
Apply optimization approaches that balance short-term revenue goals with longer-term customer engagement and retention objectives
Build holdout and incrementality testing infrastructure to ensure accurate measurement of model-driven lift
Mine transactional, behavioral, and engagement data to engineer predictive features at the customer level
Build and maintain customer feature stores supporting NBA model inputs: recency, frequency, category affinities, channel responsiveness, and promotional sensitivity
Integrate third-party data sources (demographic overlays, loyalty data) to enrich model inputs and improve prediction accuracy
Develop deep understanding of Belk customer segments by loyalty tier, shopping occasion, and FOB affinity to ensure models reflect behavioral nuance
Write clean, well-documented code in Python and/or R for model development, feature engineering, and scoring workflows
Build SQL-based data pipelines to extract, transform, and prepare modeling datasets from enterprise data platforms
Establish model monitoring, drift detection, and retraining cadences to maintain model accuracy over time
Document model methodology, assumptions, validation results, and performance benchmarks to support governance and reproducibility
Partner with marketing strategists and CRM leads to define decisioning use cases and prioritize the model development roadmap
Translate complex model outputs and findings into clear business narratives for non-technical marketing and business stakeholders
Contribute ideas and best practices within the Decision Science function, and collaborate effectively across analytics and marketing teams