Summary
John Keller is an iOS developer with nine years in software and five years focused on building testable, modular iOS apps using both SwiftUI/Combine and UIKit. Based in Boulder, Colorado, he excels at leading refactors, reducing technical debt, and driving modularization across complex architectures while mentoring junior engineers. He brings practical DevOps experience by implementing CI/CD pipelines and modern tooling to improve release reliability and developer velocity. Known for strong cross-functional collaboration, John turns product requirements into maintainable code and measurable quality improvements. His background in video cinema arts hints at a design-minded approach to user experience alongside technical rigor.
9 years of coding experience
High School, Video Cinema Arts, High School, Video Cinema Arts at Denver School of the Arts
Bachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at University of Colorado Boulder