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Principal Data Scientist

Job in Acton, Middlesex County, Massachusetts, 01720, USA
Listing for: Jobtailor
Full Time position
Listed on 2026-09-07
Job specializations:
  • IT/Tech
    Data Scientist, Machine Learning/ ML Engineer, Data Analyst, AI Engineer (Applied/Software)
Salary/Wage Range or Industry Benchmark: 180000 - 260000 USD Yearly USD 180000.00 260000.00 YEAR
Job Description & How to Apply Below
  • Define and evolve analytical methodologies, standards, and best practices across the Data Science team and broader Enterprise Data & AI organization
  • Shape the analytical roadmap and prioritize investments based on business value, feasibility, decision risk, and data readiness
  • Serve as the senior technical escalation point for complex statistical, experimental, modeling, and measurement questions
  • Provide technical direction for major cross-functional, enterprise-wide initiatives
  • Lead novel, high-complexity analyses supporting strategic and high-consequence decisions
  • Establish standards for hypothesis testing, power analysis, confidence intervals, effect-size reporting, multiple-comparison control, sensitivity analysis, and uncertainty quantification
  • Define causal inference approaches and enterprise experimentation frameworks
  • Lead advanced time-series analysis, forecasting, anomaly detection, survival analysis, simulation, segmentation, and optimization
  • Define standards for predictive and machine learning model design, validation, explainability, monitoring, and lifecycle management
  • Provide technical oversight for critical predictive and machine learning models and guide their productionization
  • Partner with senior leaders to frame ambiguous strategic challenges into analytical programs with explicit decisions, hypotheses, success measures, and value expectations
  • Advise leaders on measurement strategy, experimentation, uncertainty, risk, and trade-offs
  • Establish standards for reproducible analysis, code quality, peer review, documentation, validation, and release readiness
  • Lead independent technical reviews of high-impact analyses and models
  • Create reusable frameworks, libraries, templates, and reference implementations
  • Mentor Data Scientists and Senior Data Scientists and raise technical standards through coaching, reviews, and learning sessions
  • Influence hiring standards, interview practices, and technical assessment criteria
  • Partner with Insights & Analytics, Analytics Engineering, Data Engineering, AI Engineering, MLOps, governance teams, domain leaders, and product owners
  • Communicate methods, findings, limitations, and recommendations to executives, business stakeholders, technical peers, and governance audiences
  • Lead or contribute to cross-functional delivery forums, technical reviews, and enterprise communities advancing responsible data science
Requirements
  • 10+ years of relevant professional experience in data science, statistics, econometrics, operations research, applied mathematics, machine learning, or a related quantitative discipline
  • Demonstrated track record of providing technical leadership for complex, cross-functional analytical initiatives with material business impact
  • Expert-level knowledge of statistical methodology, including experimental design, causal inference, regression, forecasting, Bayesian methods, and machine learning
  • Deep proficiency in Python and modern data science libraries, including pandas, Num Py, Sci Py, stats models, and scikit-learn
  • Extensive experience developing and validating predictive models and supporting their transition into production environments
  • Demonstrated ability to translate ambiguous business challenges into clear analytical frameworks, decision criteria, and defensible quantitative solutions
  • Proven ability to influence senior leaders and cross-functional teams through evidence, technical credibility, and clear communication
  • Strong experience conducting technical reviews, establishing analytical standards, and mentoring experienced practitioners
  • Hands-on experience with Databricks or a comparable cloud-based data and analytics platform
  • Exceptional written and verbal communication skills, including the ability to explain complex quantitative concepts to non-technical audiences
  • Master's degree or PhD in statistics, mathematics, econometrics, operations research, computer science, engineering, or a related quantitative field (preferred)
  • Experience in a regulated industry such as medical devices, healthcare, pharmaceuticals, life sciences, or financial services (preferred)
  • Demonstrated depth in one or more areas such as experimentation, causal inference, forecasting, survival analysis, optimization, or advanced machine learning (preferred)
  • Experience establishing analytical standards, governance practices, reusable frameworks, or enterprise data science capabilities (preferred)
  • Publications, patents, conference presentations, open-source contributions, or other evidence of external or internal thought leadership (preferred)
  • Experience advising executive leaders on strategic decisions through quantitative evidence (preferred)
  • Experience working across geographically distributed, multidisciplinary teams (preferred)
Core Competencies

Expertise in statistical methodology, machine learning, and data science, with a strong focus on experimental design, causal inference, and predictive modeling. Proven ability to lead complex analytical initiatives and communicate findings effectively to diverse…

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