//rustin.k

hello@ | rstk.dev | github

Technical Skills #

• Languages: Python, SQL, R, Go
• Cloud & Infrastructure: AWS, GCP
• Data Engineering: Databricks, dbt, Dagster, DuckDB, ETL/ELT pipelines
• DevOps & Tools: Git, GitHub Actions, Docker, Terraform, CI/CD, agentic programming, LLM integration

Employment History #

Professional Experience #

Data Engineer · Delfi Diagnostics

• Built CI/CD pipelines using GitHub Actions and Docker that automated clinical data pipelines, eliminating manual deployments
• Automated ETL processes with Dagster, enabling data workflows to refresh daily and supporting users across data science and clinical teams
• Implemented data quality monitoring framework with automated checks and alerting, improving data reliability and catching issues before they impact downstream users
• Developed 5 internal Python and R packages for data ingestion and tooling, adopted by teams company-wide
• Delivered BI dashboards in Shiny for executive reporting, providing real-time visibility into key metrics such as biosample tracking and study enrollment
• Created semantic layers following CDISC/ADaM standards, standardizing data for 3 clinical studies
• Built LLM-powered chatbot with DuckDB MCP integration, enabling non-technical users to self-serve common data queries in natural language
• Led Databricks adoption initiative, migrating 3 workflows from legacy systems and training team members on platform capabilities

Data Engineer · GRAIL

• Built data quality pipeline for biospecimen tracking across 3 clinical studies, reconciling thousands of samples
• Developed AWS data warehouse infrastructure using S3, Glue, Athena, and QuickSight to enable self-service analytics for stakeholders
• Led internal software development as project manager, coordinating with engineering team to deliver key features for biosample management platform

Additional Experience #

Program Manager · N-Power Medicine

• Managed software development roadmap, prioritizing initiatives that supported business objectives.

Clinical Data Management · Gilead Sciences

• Managed clinical data operations for Phase I clinical trials, ensuring data accuracy and regulatory compliance.

Biosample Coordinator · Genentech

• Coordinated biosample management operations for clinical studies while maintaining data accuracy.

Education #