James Matsumura
Fractional CTO & Engineer at KokuTech Consulting
Greater Chicago Area United States
Summary
👤
Senior🎓
Top SchoolJames Matsumura is a Contract Applied AI Engineer based in the Greater Chicago Area with a decade of experience delivering practical technology solutions across healthcare, scientific research, and creative industries. He blends hands-on engineering and technical leadership—from staff engineer and lead architect roles to CTO and fractional CTO engagements—helping organizations turn biomedical and clinical data problems into reliable, production-ready AI tools. His background in bioinformatics (MS, Johns Hopkins) and early research roles informs a pragmatic approach to data quality, reproducibility, and safety when building AI systems for providers and researchers. Currently focused on making healthcare workflows safer and more efficient, he pairs domain knowledge with applied ML engineering to close the gap between prototypes and operational software. A steady mover between startups and consulting, he’s comfortable both shipping code and shaping technical strategy for small teams.
10 years of coding experience
14 years of employment as a software developer
Johns Hopkins UniversityBachelor of Science (BS), Biology, General, Bachelor of Science (BS), Biology, General at Loyola University Chicago
Github Skills (45)
api-platform10
assembly10
pipeline9
env-vars9
bioinformatics9
api9
portal9
hal9
gdc9
hypermedia9
json-ld9
php8
rest8
swagger8
env7
Programming languages (4)
Github contributions (5)
IGS/portal-ui
Aug 2016 - Sep 2017
UI for IGS project portals such as the HMP data portal found at https://portal.hmpdacc.org.
Contributions:100 commits, 3 PRs, 97 pushes in 1 year 1 month
portalsreactdata-portalportalhttps-portal
IGS/portal-api
Feb 2017 - Oct 2017
API for the IGS data portal
Contributions:1 release, 166 commits, 140 pushes in 7 months
apidata-portalportal
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.