Adam Rosien is a Principal software engineer with 21 years of experience designing and delivering high-scale, reliable distributed systems, specializing in Scala and functional programming. Based in Seattle, he combines hands-on engineering, mentoring, and training through his consultancy Inner Product LLC and past roles at Box, CrowdStrike, Wealthfront and others. He builds developer-facing infrastructure—continuous deployment, service frameworks, and observability tooling—and has a track record of turning complex operational pain into repeatable “headache removal” systems. Author of Essential Effects, he brings deep expertise in effects-oriented design and performance engineering applied to cloud, analytics, and data-intensive workloads. Known for pragmatic architecture and teaching, he routinely blends Lean/Agile practices with advanced engineering to shorten feedback loops and increase team leverage.
21 years of coding experience
14 years of employment as a software developer
BS Computer Science, BS Computer Science at University of Minnesota
Contributions:2 reviews, 1 PR, 46 pushes in 2 years 3 months
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