Browse Skills

Isolate the true causal effect of price changes on demand, revenue, and profit using rigorous econometric methods including difference-in-differences, instrumental variables, and synthetic control.

Design and analyze rigorous policy impact evaluations using causal inference methods including difference-in-differences, regression discontinuity, synthetic control, and propensity score matching.

Designs pedagogically sound automated feedback systems for programming education. Creates error taxonomies, scaffolded hint systems, and feedback message architectures that transform coding errors into effective learning opportunities.

Guides the creation of high-impact Tableau dashboards with advanced calculated fields, LOD expressions, performance optimization, and data storytelling best practices.

Transform data into compelling visual narratives using chart type selection, Tufte principles, color theory, annotation strategies, and audience-adapted presentation-ready outputs.

Design and build production-grade Power BI dashboards with optimized data models, advanced DAX measures, and professional visualization layouts. Get expert guidance on star schema modeling, performance tuning, Row-Level Security, and deployment pipelines.

Analyze and optimize Snowflake data warehouse costs through warehouse right-sizing, query performance tuning, storage efficiency, and organizational governance using resource monitors and FinOps practices.

Design and adapt survey instruments for cross-cultural and multinational research. Covers translation-backtranslation protocols, measurement invariance testing, cultural response style mitigation, and construct equivalence validation following ITC guidelines and established psychometric standards.

Systematic optimization of machine learning model hyperparameters using Bayesian optimization, multi-fidelity methods, and distributed search strategies to find optimal configurations efficiently.

Design and optimize MongoDB aggregation pipelines for complex data transformations, analytics, and reporting. Covers pipeline stage ordering, index utilization, sharded cluster considerations, and schema design patterns that enable efficient aggregation.

Design and optimize manufacturing facility layouts using digital twin simulation. Create virtual replicas of production floors to test layout alternatives, identify bottlenecks, and validate material flow improvements before physical implementation.

Develops comprehensive data governance strategies including data catalogs, metadata management, ownership models, access policies, quality frameworks, and master data management aligned with DMBOK standards.

Design and implement automated data quality frameworks using Great Expectations, dbt tests, data contracts, and observability platforms to ensure trustworthy data pipelines.

Expert in unsupervised learning techniques — clustering, dimensionality reduction, anomaly detection, and pattern discovery with scikit-learn, UMAP, and HDBSCAN.

Optimizes few-shot prompting strategies for large language models by selecting, ordering, and formatting demonstration examples that maximize output quality while minimizing token usage and cost.

Design and build Salesforce reports, dashboards, and CRM Analytics solutions that transform raw CRM data into actionable business intelligence for sales, marketing, and customer success teams.

Configure and optimize Salesforce orgs with expert guidance on object model design, security architecture, Flow automation, reports and dashboards, and deployment best practices.

Design and implement retrieval-augmented generation systems for legal documents with citation-safe retrieval, hallucination prevention, and privilege-aware document handling.

Ensure offline/online feature consistency in ML systems by designing validation pipelines, detecting training-serving skew, and implementing point-in-time correctness guarantees across feature store architectures.

Expert guidance for building and optimizing Looker LookML models, Explores, and dashboards. Covers semantic layer design, derived tables, performance optimization, and governance patterns for scalable self-serve analytics.

Design and implement comprehensive Google Analytics 4 event tracking strategies with proper taxonomy, data layer architecture, and consent-aware measurement.

Design and optimize graph database schemas, Cypher queries, and production deployments for knowledge graphs, recommendation engines, fraud detection, and network analysis applications.

Design interactive maps, choropleths, and spatial data visualizations using best practices in cartographic design, web mapping libraries, and geospatial data engineering.

Expert guide for deploying TensorFlow models to production using TensorFlow Serving, covering SavedModel optimization, serving infrastructure, batching strategies, model versioning, and monitoring for reliable ML inference at scale.