Data Scientist Level 2

Data ScientistLeadStack Inc. is an award-winning, one of the nation's fastest-growing, certified minority-owned (MBE) staffing services provider of contingent workforce. As a recognized industry leader in contingent workforce solutions and Certified as a Great Place to Work, we're proud to partner with some of the most admired Fortune 500 brands in the world.Top skills:Causal Inferences ExperienceAI – Not a dealbreaker if they do not have a ton of experience, but must be willing to learnEcon MetricsMeasurement processesQuantify treatments back to business (How does purchasing behavior change with different treatments)Work location:Cincinnati - Onsite 5 days a weekOpen to relocation but must be within first 3 months of employmentCould consider Chicago if no local candidates can be found, but they would need to travel on occasion to CincinnatiInterview process details:Initial Screening with HM and Second round technical screening with member of the teamPrescreening Details:Standard for Now, but could switch to customSUMMARY: As part of this organization, the KM+ DSR team applies statistical science, causal inference, and AI to design experiments, measure impact, and scale insights that drive customer value and loyalty. We're seeking a Data Scientist to help shape the future of our AI and science capabilities. This is a senior individual contributor role for a technically strong, forward-thinking data scientist who can advance our Gen AI and causal ML capabilities, lead end-to-end development of scalable science solutions, and partner with product and cross-functional teams to drive vision and strategy in our space.QUALIFICATIONS, SKILLS & EXPERIENCE:3+ years of applied data science experience, with demonstrated progression in scope and technical complexityHands-on experience with Generative AI applications, including one or more of: LLM fine-tuning, prompt engineering, RAG pipelines, or agentic workflow developmentFamiliarity with causal ML and/or causal inference methods (e.g., CATE, heterogeneous treatment effect modeling, DiD, matching)Strong proficiency in Python, SQL, and GitExperience with Azure and Databricks, or comparable cloud-based data science platformsExperience contributing to production-quality ML systems using software engineering best practicesAbility to partner with product managers and stakeholders to translate business needs into science solutions and roadmap prioritiesStrong oral and written communication skills, with the ability to translate between technical and business audiencesComfort with ambiguity—able to operate effectively in evolving problem spaces and contribute to early-stage vision and strategyBachelor's or Master's in Statistics, Data Science, Computer Science, Applied Math, Economics, or related quantitative fieldPreferred:Experience with MLOps practices including workflow orchestration, model monitoring, reproducibility, and deploymentExperience in retail, CPG, media, or marketplace analyticsDemonstrated ability to informally mentor or coach peers in technical best practicesFamiliarity with experimentation frameworks and measurement pipelinesKey Responsibilities:Advance our AI capabilities by designing, developing, and deploying Gen AI solutions—including LLM fine-tuning, prompt engineering, RAG pipelines, agentic workflows, and integration of Gen AI into existing measurement and science workflows.Lead end-to-end development and scaling of data science solutions, from research and experimentation through productionization, ensuring solutions are robust, reproducible, and maintainable.Partner with product managers and cross-functional stakeholders to shape the vision, roadmap, and prioritization of science products and capabilities in the personalization and loyalty space.Contribute to the vision and early development of a holistic science layer—working to connect and consolidate scattered science capabilities into a unified, scalable framework.Apply and extend causal ML and econometric methods (e.g., CATE, DiD, matching, panel methods) to support measurement, experimentation, and personalization at scale.Build, maintain, and improve production ML and experimentation pipelines using sound MLOps and software engineering practices, including CI/CD, version control, testing, and documentation.Research and evaluate emerging AI/ML technologies and methodologies, identifying opportunities to bring state-of-the-art approaches into production.Serve as a technical leader and subject matter expert on the team, providing guidance and informal mentorship to peers and evolving into a formal mentor as junior talent joins the team.Communicate complex technical findings and methodologies clearly to both technical and non-technical audiences, including leadership and product stakeholders.