Data Scientist
Arohana Tech Solutions Private Limited · Glendale, CA · 1 wk ago
HybridEngineeringFull-time
Key Responsibilities
- Lead end-to-end experimentation initiatives, including A/B testing and Geo Experiments, from hypothesis development through execution, analysis, and business recommendations.
- Design statistically rigorous experiments and ensure appropriate experimental methodologies are applied.
- Perform sample size calculations, statistical power analysis, and minimum detectable effect (MDE) estimation.
- Manage multiple testing scenarios while applying appropriate false discovery rate (FDR) control techniques.
- Apply both Bayesian and Frequentist statistical approaches where appropriate.
- Develop and apply advanced causal inference methodologies, including:
- Difference-in-Differences (DiD)
- Propensity Score Matching
- Synthetic Controls
- Instrumental Variables
- Doubly Robust Estimation
- Meta Learners
- Uplift Modeling
- Validate assumptions underlying causal inference techniques and ensure statistical rigor throughout analyses.
- Build predictive and inferential models using regression, classification, time series forecasting, and other advanced statistical techniques.
- Design and develop reusable experimentation and causal inference frameworks that can scale across multiple business domains.
- Build statistical analysis packages and reusable Python/R libraries to improve analytical efficiency.
- Develop production-ready analytical workflows and automation.
- Collaborate with business stakeholders to identify optimization opportunities through experimentation and advanced analytics.
- Translate complex statistical findings into clear, actionable business recommendations.
- Present analytical insights to senior leadership and executive stakeholders in an easily understandable manner.
- Influence strategic decisions through data-driven storytelling.
- Mentor junior data scientists and analysts on statistical methods, experimentation best practices, and scalable solution development.
- Promote a culture of innovation, experimentation, quality, and continuous improvement.
- Lead cross-functional initiatives involving analytics, engineering, and business teams.
Required Qualifications
- Minimum 7+ years of experience with a strong focus on experimentation, statistical modeling, and causal inference.
- Strong expertise in:
- Propensity Score Methods
- Synthetic Controls
- Difference-in-Differences (DiD)
- Instrumental Variables
- Doubly Robust Estimation
- Meta Learners
- Uplift Modeling
- Experimentation A/B Test Design
- Geo Experiments
- Statistical Power Analysis
- Sample Size Estimation
- Multiple Testing Corrections
- False Discovery Rate (FDR) Control
- Bayesian Statistics
- Frequentist Statistics
- Strong proficiency in:
- Python
- R
- Experience With:
- scikit-learn
- LightGBM (LGBM)
- Data engineering
- Etl development
- Data extraction
- Data transformation
- Data integration
- Data quality management
- Data platforms & tools
- Excellent written and verbal communication skills.
- Ability to simplify complex analytical concepts for technical and non-technical audiences.
- Experience presenting recommendations to senior executives.
- Strong stakeholder management and cross-functional collaboration skills.
- Proven ability to independently lead analytical initiatives from concept to implementation.