Marc Hadley
Chief Engineer, Public Health Division at MITRE
Brookline, New Hampshire, United States Other
Summary
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RockstarMarc Hadley is a seasoned software and systems engineer with 15+ years leading healthcare systems engineering as Chief Engineer for MITRE's Public Health Division. His career spans senior technical and leadership roles at Sun Microsystems, Oracle, and startups, blending deep technical craftsmanship with program-level delivery. He contributes to open-source health tooling—improving Synthea's FHIR exporters to produce cleaner, more accurate synthetic patient data—demonstrating attention to data quality and interoperability. Based in Brookline, NH, Marc pairs pragmatism in backend engineering with domain expertise in public health informatics, often focusing on the subtle improvements that make exported clinical data more usable.
15 years of coding experience
14 years of employment as a software developer
Github Skills (8)
data-formats10
formatting10
javas10
bigdecimal10
data-export10
data-format10
java10
synthetic-data8
Programming languages (8)
Github contributions (5)
synthetichealth/synthea
Sep 2019 - Jan 2023
Synthetic Patient Population Simulator
Role in this project:
Backend Developer
Backend DeveloperContributions:9 releases, 110 reviews, 268 commits in 3 years 4 months
Contributions summary:Marc's commits focus on refining the accuracy of valueQuantity values and improving the data formatting of the FHIR export. They implemented rounding to five significant figures for numerical values in the FHIR R4, DSTU2, and STU3 exporters, improving the quality of the generated FHIR data. Furthermore, the commits reduced the number of decimal places for vital signs and removed trailing zeros in the FHIR export, enhancing the readability and data cleanliness of the exported resources. Additionally, the user added the functionality to specify the number of decimal places for values from ranges, along with a fix for pain severity ratings in modules.
health-datafhirpatientsimulationsimulator
projecttacoma/patientapi
Jul 2011 - Dec 2012
Contributions:55 commits in 1 year 4 months
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