rustin k

hello@ | rstk.dev | github | sr.ht

Technical Skills #

• Interests: Data engineering, analytics engineering
• Languages: Python (Spark, Polars), R (Tidyverse), SQL, Go
• Cloud & Infrastructure: AWS, GCP
• Data Engineering: Databricks, dbt, ETL pipelines, data orchestration, data governance, APIs
• DevOps & Tools: Git, GitHub Actions, Docker, CI/CD, Terraform, Dagster, agentic programming, LLM integration
• Hobbies: Reading (sci-fi, fantasy), documentaries, photography, gaming, working out, nature walks

Employment History #

Professional Experience #

Data Engineer · Delfi Diagnostics

• Led Databricks adoption initiative, migrating workflows from legacy systems and training team members on platform capabilities
  • Develop entire pipelines via Declarative Automation Bundles (DAB)
  • Implemented Medallion Architecture in Unity Catalog
  • Developed ETL orchestration using Spark Declarative Pipelines (SDP)
  • Deployed AI/BI assistant using Genie Spaces
• Built CI/CD pipelines using GitHub Actions and Docker that automated clinical data pipelines
• Automated ETL processes with Dagster Implemented data quality monitoring framework with automated checks and alerting
• 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
• Created semantic layers following CDISC/ADaM standards, standardizing data for 3 clinical studies
• Built LLM-powered chatbot with DuckDB MCP integration, allowing users to query data in natural language

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 #