Radek Liro

Data Engineering & Analytics: - Designed, developed, and optimized ETL/ELT pipelines using Python, dbt, BigQuery, and Google Cloud Storage to process and analyze large datasets. - Orchestrated ETL workflows using Airflow for automation and scalability. - Implemented Reverse ETL to sync data from warehouses to operational systems, ensuring smooth data flow for better decision-making. - Built advanced dbt models leveraging complex SQL for efficient data transformation and analytics workflows. - Utilized Looker to create and manage data visualizations, enabling actionable insights. Software Development: - Developed a Python-based application integrating Large Language Models (LLMs), employing tools such as AsyncIO, LangChain, and Pydantic. - Deployed and maintained applications within Docker containers, ensuring high performance and scalability. - Debugged application performance using APM (ElasticSearch) and monitored production environments with Kubernetes. Collaboration & Tools: - Worked in Agile environments (Scrum and Kanban) using Jira and Confluence for task management and documentation. - Managed code repositories on GitLab. - Familiar with Linux commands for troubleshooting and system maintenance.

Leveraged SQL to analyze data from multiple sources, delivering actionable insights via BI tools and spreadsheets with live connections. Built and optimized ETL pipelines using Fivetran and Stitch to integrate data from platforms like Salesforce and marketing tools. Designed scalable data models (bronze, silver, gold) for efficient processing, adhering to engineering best practices. Developed and documented data models in dbt across cloud warehouses like Snowflake and BigQuery. Managed analytics projects end-to-end, collaborating with stakeholders to define requirements, KPIs, risks, and timelines, and presenting insights to both technical and non-technical audiences. Conducted performance analysis of eCommerce marketing campaigns, enabling A/B testing and data-driven optimization of spend and conversions. Created intuitive Tableau and Power BI dashboards for executive reporting and marketing analytics, integrating data from databases and direct application connections.

Launched and managed an online store selling household products. Handled product research, supplier sourcing, pricing strategy, and online listings. Developed off-platform sales channels and ran digital ad campaigns to drive traffic and increase customer retention.

Managed rental listings and client relations. Matched tenants with suitable properties and facilitated lease agreements. Engaged with landlords to represent their properties and conducted market research to guide rental strategy.