05/03/2026 updated
100 % available
Data & AI Consultant | Full-Stack Data Architecture | Snowflake Select Partner
Krakow, Poland
Only remote
MBA, European University Montreux, Switzerland (2001)About me
200+ projects· 25+ countries· Snowflake Select Partner I run a data consultancy that delivers what enterprise teams estimate will take six months—in four weeks. I write the code. I own the architecture. I ship. I work best with clients who have real problems and short patience for theatre.
Application Programming Interfaces (APIs)Apache AirflowData AnalysisBusiness Intelligence DevelopmentSoftware as a ServiceData ArchitectureMarketing AnalyticsAzure Machine LearningBusiness Intelligence Development StudioSnowflakeMulti-Agent SystemsPrompt EngineeringInfrastructure as Code (IaC)CloudflareTerraform
Data Architecture & Engineering
Expertise in designing and building full data stacks from raw ingestion to executive decision. Proficiency with Snowflake, dbt, Airflow, Orchestra, Airbyte, Fivetran, GCP, AWS, Docker, and Terraform. Delivery of ELT/ETL pipelines, dbt modeling, data quality frameworks, and infrastructure as code.
LLM & Agentic AI Systems
Hands-on experience with Claude API, Claude Code, Snowflake Cortex/Intelligence, MCPs, LangChain, CrewAI, OpenAI API, and Gemini/Vertex AI. Building and deploying production-grade multi-agent systems, RAG pipelines, prompt engineering, and MCP server deployment on Cloudflare Workers and Cloud Run.
CRO & Experimentation
Design and execution of A/B testing frameworks using Convert, Optimizely, GTM, Tealium, R, and Python. Statistical significance testing, funnel analysis, experimental design, and hypothesis validation across e-commerce, SaaS, and lead-gen clients.
Machine Learning
Application of Snowpark ML, H2O, scikit-learn, and MLflow for clustering, anomaly detection, prediction pipelines, model versioning, and experiment tracking.
Dev/MLOps
Implementation of CI/CD pipelines, production deployment, monitoring, and incident response using Docker, GitHub Actions, Terraform, Cloud Run, Cloudflare Workers, and LangSmith.
Data Analysis & Statistical Modeling
Exploratory analysis, statistical modeling, rapid prototyping, what-if simulations, and ad-hoc reporting under deadline using R, Python, SQL, Quarto, and Shiny.
Dashboards & Reporting
Building automated reporting frameworks, reproducible pipelines, and interactive dashboards with KPI monitoring using Quarto, Power BI, Tableau, Shiny, and AWS QuickSight.
Decision Intelligence & Data Activation
KPI definition, measurement planning, scenario modeling, and marketing analytics using R, Python, and Semantic Layer Tools. Focus on translating data into actionable business decisions.
Production AI Systems & Data Foundations
Building reliable production AI systems starting from data quality, semantic models, and contracts, then layering in agents, MCPs, and orchestrators. Snowflake-native implementation where applicable.
Expertise in designing and building full data stacks from raw ingestion to executive decision. Proficiency with Snowflake, dbt, Airflow, Orchestra, Airbyte, Fivetran, GCP, AWS, Docker, and Terraform. Delivery of ELT/ETL pipelines, dbt modeling, data quality frameworks, and infrastructure as code.
LLM & Agentic AI Systems
Hands-on experience with Claude API, Claude Code, Snowflake Cortex/Intelligence, MCPs, LangChain, CrewAI, OpenAI API, and Gemini/Vertex AI. Building and deploying production-grade multi-agent systems, RAG pipelines, prompt engineering, and MCP server deployment on Cloudflare Workers and Cloud Run.
CRO & Experimentation
Design and execution of A/B testing frameworks using Convert, Optimizely, GTM, Tealium, R, and Python. Statistical significance testing, funnel analysis, experimental design, and hypothesis validation across e-commerce, SaaS, and lead-gen clients.
Machine Learning
Application of Snowpark ML, H2O, scikit-learn, and MLflow for clustering, anomaly detection, prediction pipelines, model versioning, and experiment tracking.
Dev/MLOps
Implementation of CI/CD pipelines, production deployment, monitoring, and incident response using Docker, GitHub Actions, Terraform, Cloud Run, Cloudflare Workers, and LangSmith.
Data Analysis & Statistical Modeling
Exploratory analysis, statistical modeling, rapid prototyping, what-if simulations, and ad-hoc reporting under deadline using R, Python, SQL, Quarto, and Shiny.
Dashboards & Reporting
Building automated reporting frameworks, reproducible pipelines, and interactive dashboards with KPI monitoring using Quarto, Power BI, Tableau, Shiny, and AWS QuickSight.
Decision Intelligence & Data Activation
KPI definition, measurement planning, scenario modeling, and marketing analytics using R, Python, and Semantic Layer Tools. Focus on translating data into actionable business decisions.
Production AI Systems & Data Foundations
Building reliable production AI systems starting from data quality, semantic models, and contracts, then layering in agents, MCPs, and orchestrators. Snowflake-native implementation where applicable.
Experience
Professional experience10+ years
Freelancer since2018
Languages
EnglishFluentPolishNative speaker
Project history
Running a full-stack data consultancy and CRO agency with 200+ projects across 25+ countries. Snowflake Select Partner. Clients include Bertelsmann (top-20 global media group) and a multi-site Irish lead-gen platform operating across 14 countries.
Completed 50+ projects in CRO and data analytics. Achieved Top Rated Plus status. Built a client base across Europe and North America that seeded Altamedia.
Founded and bootstrapped a mobile games trading company from zero. Grew to a team of 20. Exited via acquisition by a publicly listed company.