Senior Data Scientist building forecasting, simulation, and causal models for Calix’s customer-success analytics. Translating enterprise data into decision tools for retention, adoption, expansion, and value realization.
Responsibilities
Design and develop robust time-series forecasting models for revenue, retention, churn, expansion, customer adoption, and operational demand
Partner with Success leaders to identify drivers of customer outcomes and develop analytical capabilities supporting strategic and operational objectives
Build simulation and scenario-modeling frameworks integrating forecasts, business constraints, and causal effects
Apply causal inference, experimentation, and uplift modeling to measure customer and business interventions against baseline trends
Develop Bayesian and probabilistic models that quantify uncertainty and provide decision ranges
Use enterprise data to train, back-test, validate, and continuously improve models
Manage the end-to-end model lifecycle, including problem framing, feature engineering, development, deployment, monitoring, and tuning
Partner with data engineering and platform teams to deploy scalable models integrated with enterprise data systems and Success workflows
Establish evaluation practices including back-testing, sensitivity analysis, explainability, and impact measurement
Translate customer and business dynamics into scenarios, insights, and recommendations aligned to leadership decision points
Establish reliable multi-horizon forecasts for critical Success and business metrics
Provide leadership with scenario-modeling capabilities for evaluating customer strategies, investments, and resource decisions
Enable measurement of customer interventions against baseline retention, adoption, expansion, and value-realization performance
Identify leading indicators and causal drivers of customer outcomes
Integrate models into Success planning and operating workflows to drive measurable action
Build trusted, scalable capabilities demonstrating sustained adoption and measurable customer and business impact
Requirements
7+ years of experience in data science, decision science, applied machine learning, statistical modeling, or advanced analytics in production environments
Advanced Python skills, including pandas, NumPy, scikit-learn, and relevant statistical modeling libraries
Deep SQL proficiency and experience with large, complex datasets on Snowflake or a comparable cloud data platform
Extensive experience building production-grade time-series forecasting systems, including multi-horizon forecasting and rigorous back-testing
Experience constructing simulation models, such as Monte Carlo models
Hands-on experience measuring incrementality and treatment effects using experimentation, causal inference, observational methods, or uplift modeling
Experience applying Bayesian or probabilistic methods to uncertainty estimation and decision-making
Strong understanding of statistics, probability, experimental design, model explainability, and responsible modeling practices
Ability to translate ambiguous business problems into structured mathematical or statistical models
Experience integrating models into planning or operational workflows used to make business decisions
Strong communication skills, including explaining methods, limitations, uncertainty, and recommendations to business and executive stakeholders
Preferred: experience in subscription, SaaS, telecommunications, customer success, or customer lifecycle analytics
Preferred: familiarity with NRR, retention, churn, expansion, product adoption, customer health, and value-realization metrics
Preferred: experience with EconML, DoWhy, CausalML, PyMC, statsmodels, or equivalent tools
Preferred: familiarity with MLOps practices for deployment, reproducibility, monitoring, and governance
Preferred: experience integrating analytical outputs into enterprise planning, reporting, and operational decision workflows
Master’s degree or Ph.D. in Data Science, Statistics, Computer Science, Applied Mathematics, Operations Research, Engineering, or a related quantitative discipline; equivalent practical experience will be considered
Benefits
Bonus eligibility as part of the total compensation package
Benefits package (specific benefits linked in the posting)
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