Competency Matrix

Skills & Expertise

4+ years of production ML experience — forecasting, attribution, marketing science, infrastructure, and data engineering. Every skill backed by shipped production systems.

Expert

Advanced

Intermediate

Machine Learning

XGBoost (Regressor + Classifier)

4+ yrsExpert

scikit-learn Pipelines

4+ yrsExpert

Custom Transformers

3+ yrsExpert

Ridge / BayesianRidge

4+ yrsExpert

SHAP (TreeExplainer)

3+ yrsExpert

Feature Selection

4+ yrsExpert

Rare Event Classification

3+ yrsAdvanced

Markov Chain MTA

2+ yrsAdvanced

L-BFGS-B Optimization

2+ yrsAdvanced

Model Stacking (LGBM/CatBoost)

2+ yrsIntermediate

Forecasting

EOQ Revenue Forecasting

4+ yrsExpert

Multi-Horizon Forecasting

4+ yrsExpert

STL Decomposition

3+ yrsAdvanced

SARIMAX

2+ yrsAdvanced

Leakage-Safe Temporal Validation

3+ yrsExpert

GroupShuffleSplit

3+ yrsExpert

Heuristic Forecasting

4+ yrsAdvanced

Marketing Science

Marketing Mix Modeling

3+ yrsExpert

Hill Saturation Curves

3+ yrsExpert

Adstock Modeling

3+ yrsExpert

Response Curve Generation

3+ yrsExpert

Scenario Planning

3+ yrsExpert

Multi-Touch Attribution

4+ yrsExpert

Incrementality Testing

2+ yrsAdvanced

Causal Inference / DiD

2+ yrsAdvanced

Programming & Data

Python

5+ yrsExpert

SQL / BigQuery

5+ yrsExpert

PySpark

2+ yrsAdvanced

pandas / NumPy

5+ yrsExpert

statsmodels / SciPy

3+ yrsAdvanced

joblib (Parallelization)

3+ yrsExpert

Cloud & Infrastructure

Google Cloud Platform (GCP)

4+ yrsAdvanced

BigQuery

4+ yrsAdvanced

GCP Dataproc

3+ yrsAdvanced

Cloud Storage (GCS)

4+ yrsAdvanced

Apache Airflow

1+ yrsIntermediate

Domain Expertise

B2B SaaS Revenue Intelligence

4+ yrsExpert

GTM Analytics (Full Funnel)

4+ yrsExpert

Pipeline & Booking Forecasting

4+ yrsExpert

Marketing Attribution

4+ yrsExpert

Salesforce Opportunity Semantics

4+ yrsExpert

Stakeholder Communication

4+ yrsExpert