Ryan Sivek
Staff Software Engineer at Marqeta
Raleigh-Durham-Chapel Hill Area United States
Summary
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Rockstar🎓
Top SchoolRyan Sivek is a staff software engineer with 11 years of experience building cloud-native data and infrastructure platforms, currently leading production data reporting and governance at Marqeta. He combines hands-on backend and cloud engineering with people leadership, having grown and guided teams while earning strong psychological safety and upward feedback scores. Ryan architected a data-mesh-inspired approach that decouples monolithic data systems, enables self-serve for 30+ teams, and enforces centralized governance—improving resource agility and observability. He led large migrations and security improvements, including a company-wide Snowflake service account migration to AWS KMS and a CI/CD overhaul to better fit data team workflows. His open-source work includes enhancing physiological simulation in the widely used Synthea project, reflecting a cross-disciplinary background that spans biomedical engineering and high-throughput systems. Pragmatic and security-minded, he focuses on scalable, cost-effective solutions that deliver measurable platform and business impact.
11 years of coding experience
15 years of employment as a software developer
Bachelor of Science (B.S.), Computer Engineering, Bachelor of Science (B.S.), Computer Engineering at University of Central FloridaMaster of Engineering (M.E.), Biomedical/Medical Engineering, Master of Engineering (M.E.), Biomedical/Medical Engineering at University of Virginia
Stackoverflow
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Github Skills (10)
simulations10
simulation10
javas10
sbml10
synthetic-data10
java10
differential-equations9
data-modeling9
hl7-fhir8
smart-on-fhir8
Programming languages (7)
Github contributions (5)
synthetichealth/synthea
Jun 2019 - Mar 2020
Synthetic Patient Population Simulator
Role in this project:
Back-end Developer
Back-end DeveloperContributions:193 commits, 5 PRs, 72 pushes in 8 months
Contributions summary:Ryan's commits primarily revolve around adding and modifying core classes and methods within the `synthetichealth/synthea` repository. Their work focuses on enhancing the physiology simulation capabilities of the project, including integrating external libraries, adding a `Physiology` class, and modifying existing states to integrate new simulation features. The contributions also included adjusting the logic within several existing data generation modules.
health-datafhirpatientsimulationsimulator
rsivek/vec23
Mar 2015 - May 2024
Contributions:12 pushes, 1 branch in 9 years 3 months
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