Jonatan Hjalmarsson is a seasoned technology leader and entrepreneur with 11 years of hands-on experience building web and digital health solutions from Sweden's Hudiksvall. He has held CTO roles and now consults externally while running multiple ventures he co-founded, including Snajd and Atellus, blending product strategy with full-stack delivery. His background spans web development, JavaScript-heavy front ends, and eHealth platforms connecting clinicians and patients, demonstrating both domain depth and operational pragmatism. As CEO of client-facing networks and a maker of mobile health services, he pairs creative agency leadership with technical execution. Notably, he moves fluidly between startup creation and consulting, favoring practical innovation over academic formality.
An API compatible open source server for interacting with devices speaking the spark-protocol
Contributions:2 pushes in 2 months
apispeakingspark
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Jonatan Hjalmarsson - Chief Technology Officer at Paylio AB