Skills
======

Domain expertise
----------------

**Marketing analytics**: SEM, SEO, email and paid social; marketing-mix
modeling, customer lifetime value, CAC and ROAS; Google Analytics 4, HubSpot,
Power BI (advanced DAX), Looker Studio, Tableau, Excel (Power Query, Power
Pivot, Solver).

**Machine learning and data**: Python (pandas, scikit-learn, LLM APIs); NLP and
transformers (BERT, spaCy); retrieval-augmented generation (LangChain,
ChromaDB); SQL (BigQuery, DuckDB); R.

**Documentation and engineering**: Git, Sphinx, reStructuredText, Diátaxis,
Docker.

Certifications
--------------

Microsoft Excel Associate (MO-210) · Google Analytics Certification ·
DataCamp Data Analyst with R · Introduction to Communication Science
(University of Amsterdam).

Languages
---------

Greek (native) · English (fluent, IELTS band 8.5).