Karl Sabo is a Senior Software Engineer with 7 years of recent experience designing and building scalable, cross-platform systems, currently contributing at Klaviyo from Albuquerque. He has a decade-plus track record delivering high-throughput backend infrastructure and HPC-focused batch execution systems, modernizing services for testability, visibility, and cost-efficient compute provisioning. As a cofounder at Nimbly Games he shipped commercially successful, cross-platform games and built scalable cloud backends, VOIP, and a custom Java→C++ transpiler to port Android code to iOS. His work spans containerization, database optimization for write-heavy flows, and performance-driven build/tooling improvements (including an 8x build-time reduction migrating Maven to Gradle). Known for mentoring engineers and leading candidate evaluations, he combines hands-on systems design with practical operational rigor and a history of shipping resilient, production-grade distributed software.
6 years of coding experience
18 years of employment as a software developer
Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at New Mexico State University
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