Nick V.

Fractional CDO and Senior Data Engineer for Series A-B SaaS, marketplaces, and consumer-tech. Builds full-stack data platforms end-to-end: warehouse (Snowflake, BigQuery, ClickHouse), transformation (dbt, Fivetran), BI (Power BI, Looker). 56 Upwork contracts closed, 5+ ongoing 1-3 year retainers including Tools for Humanity (Worldcoin), BHL, and OpenTag. Service menu: • Data strategy and roadmap (from Series-A "we need data" to Fortune-100 architecture) • Warehouse stand-up on Snowflake, BigQuery, or ClickHouse — from scratch or migration • Modern data stack: dbt models, Fivetran ingestion, Airflow orchestration, semantic layer • BI implementation and audit (Power BI, Tableau, Looker, Looker Studio, Metabase, Superset) • Analytics team hiring, mentoring, KPI stewardship, data governance • Customer Data Platform and event tracking (GA4, server-side GTM, attribution) Recent engagements and rates: • ClickHouse Expert, $176/hr, 7 months. 12B rows/month, query p95 14s to 380ms. • Data Consultant CDO, $120/hr, 8 months. Built the data org from scratch for a Series B fintech. • Database and Cloud Architecture Consultant, $125/hr. • Looker Studio migration, $115/hr. 40 Sheets dashboards migrated, weekly reporting time cut 70%. • Long-term retainers: OpenTag Superset ($90/hr, 13 months), BHL Metabase ($80/hr, 13 months), Tools for Humanity Worldcoin ($75/hr, 2.5+ years). Where I fit best: • You have raw data in production but no unified view for the team • Your BI is fragmented across Sheets, Excel, and three half-built dashboards • Your gap is senior architecture, and hiring more junior engineers won't close it • You want a decision partner who thinks in unit economics Where I don't fit: • Pure ML/CV/NLP research (LLM + RAG for data pipelines is fine) • Marketing/CRO tracking without an analytics stack under it • Junior data-entry or dashboard-copy tasks Communication: async-first, Slack + Loom + written docs. CET timezone, US-friendly hours daily. Send a message with your stack, one business question, and the number you want to move. Reply within 8 hours business days.