> Markdown version of [/jobs/ext/580651-senior-data-scientist-search-and-recommendations](https://www.wearedevelopers.com/jobs/ext/580651-senior-data-scientist-search-and-recommendations). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Data Scientist, Search and Recommendations - **Company:** CarMax Business Services, LLC - **Location:** Kennesaw, GA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** A/B Testing, Application Programming Interfaces (APIs), Big Data, Data as a Services, Statistical Hypothesis Testing, Python (Programming Language), Machine Learning, Recommender Systems, Service Design, Software Engineering, SQL Databases, Data Processing, Apache Spark, Information Technology, Machine Learning Operations, Databricks - **Published:** June 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=8039a34248484898 ## About the Role Do you have experience in Statistical significance testing?, Do you have a Master's degree?, * 3+ years of experience in a data science role, preferably in e-commerce, marketplace, or a data-rich environment * Degree in quantitative discipline field such as math, data science, statistics, computer science * Advanced degree (Master's/Ph.D.) is preferred * Strong Python skills and experience with SQL for data manipulation, analysis, and model development, as well as foundational software development experience * Solid foundation in statistics, including hypothesis testing, confidence intervals, and experimental design - you should be comfortable explaining why a test result is or isn't significant * Experience working with large datasets using tools like Spark, Databricks, or similar * Experience with recommender systems, search/ranking algorithms, or embeddings is a plus-but if you haven't worked on these yet and are eager to learn, we'll get you there * Comfort with ambiguity and ability to drive clarity when requirements are fuzzy * Collaborative mindset-you enjoy working with engineers, PMs, and analysts, not just other data scientists Work Location and Arrangement This role will be based out of the CarMax Technology Innovation Center (Richmond, VA) and associates will work onsite 4 days per week. Work Authorization: Applicants must be currently authorized to work in the United States on a full-time basis. Sponsorship will not be considered for this specific role. ## Description Understanding our business - the used vehicle market, our customers, and our digital products - is at the heart of what we do on this team. Our data is massive, rich, and often challenging to work with. In this role you will develop and maintain ML models that deliver a highly personalized experience for our customers, driving measurable impact to critical business metrics such as online engagement, lead initiation, and sales. You will also design and execute rigorous statistical tests that allow us to measure these impacts and optimize our systems. You'll work side by side with ML engineers on model deployments and service design, which means you'll be part of the end-to-end ML lifecycle and not just stuck in notebooks. If you love data and get excited about search and recommender algorithms, this role is for you. What You Will Do - Essential Responsibilities * Design, develop, deploy, and maintain ML products that create personalized experiences for our customers * Analyze large-scale behavioral data (search queries, click-through rates, purchase patterns, inventory turnover) to surface insights about customer preferences and system performance * Design, execute, and interpret statistical tests (A/B tests, holdout experiments, pre/post analyses) to measure the impact of algorithm changes and new features * Partner with ML engineers on model deployment and ML product development (API's, data services, etc.) * Translate complex data and ML findings into clear narratives for technical and non-technical stakeholders alike * Partner closely with cross functional teams in Product, Strategy, Technology, and Operations * Stay current on research and best practices in recommender systems and search; bring new ideas to the team ## Related Videos - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [Cutting LLM Costs Without Cutting Quality: How to Beat Proprietary LLMs with Fine-Tuned Open Source](https://www.wearedevelopers.com/videos/100151-cutting-llm-costs-without-cutting-quality-how-to-beat-proprietary-llms-with-fine-tuned-open-source) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Bringing the power of AI to your application.](https://www.wearedevelopers.com/videos/1010-bringing-the-power-of-ai-to-your-application) - [OLTP in the Lakehouse: Redefining Data for AI Workloads](https://www.wearedevelopers.com/videos/2038-oltp-in-the-lakehouse-redefining-data-for-ai-workloads) - [Beyond Autocomplete: Local AI Code Completion Demystified](https://www.wearedevelopers.com/videos/961-beyond-autocomplete-local-ai-code-completion-demystified) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [How software is steering vehicle technology](https://www.wearedevelopers.com/magazine/515-how-software-is-steering-vehicle-technology) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers)