Mark Iantorno
Senior Manager, Software Development - Precision Health Platform
Old Toronto, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolMark Iantorno is a senior engineering leader with two decades of experience building and scaling software teams and platforms across healthcare, finance, and education, now leading Precision Health Platform development at Verily. He has a proven track record of operational transformations—growing engineering headcount from 5 to 50+ in under 18 months, raising SLA compliance to 100%, and cutting CI/CD times by 70% to accelerate delivery. His domain expertise in healthcare interoperability is deep and practical: he contributed to core HL7 FHIR libraries and tooling used to meet U.S. federal mandates and global rollouts adopted by over 100 governments, payers, and providers. A hands-on back-end developer at heart (self-styled "Code Archaeologist/Open Sorcerer"), he combines rigorous engineering craft—refactoring complex FHIR convertors and improving build systems—with strategic product delivery and compliance leadership. Known for mentoring high-engagement teams and creating reusable delivery practices like testing-as-a-service, he blends technical depth with a knack for cross-functional collaboration and audit-ready processes.
11 years of coding experience
15 years of employment as a software developer
Bachelor of Engineering (BEng), Computer Systems, Bachelor of Engineering (BEng), Computer Systems at Carleton University
Github Skills (17)
hapi-fhir10
back-end-development10
apidoc10
build-gradle-kts10
java10
smart-on-fhir10
javas10
api10
java-api10
hl7-fhir10
gradlew10
gradle10
health9
ehealth9
medical9
Programming languages (10)
Github contributions (5)
hapifhir/org.hl7.fhir.core
Jan 2020 - Jan 2023
Role in this project:
Back-end Developer
Back-end DeveloperContributions:280 releases, 61 reviews, 750 commits in 3 years
Contributions summary:Mark's commits focus on refactoring and improving the functionality of version convertor files within the `hapifhir/org.hl7.fhir.core` repository, which is focused on the FHIR standard. The main changes involved refactoring core version convertor files to use static access and moving code specific to resource types into their own files, improving the overall structure and maintainability of the codebase. Additionally, the user's commits wrap all accessors in convertor files with has___() conditions, and fixed the logic within.
fhir
hapifhir/hapi-fhir
Feb 2020 - Jan 2023
🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers
Role in this project:Back-end Developer
Back-end DeveloperContributions:68 releases, 49 reviews, 117 commits in 2 years 11 months
Contributions summary:Mark primarily focused on updating and fixing conversion issues related to the HAPI FHIR library, a Java API for HL7 FHIR clients and servers. Their contributions involved modifying code to align with the latest core library changes, specifically addressing version-specific conversion issues and fixing validation problems. The user also made adjustments to the JPA conversion library and resolved issues related to data conversion processes.
hl7-fhirapihapihl7apps
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