Paul Ossenbruggen is a Senior Software Engineer in San Francisco with over a decade building robust iOS experiences and cross-platform systems for companies from startups to enterprises. He combines deep expertise in Swift, Objective-C and C++ with hands-on experience in architectures like MVVM-C, Combine, GraphQL and complex SDK development for location and media-rich apps. As a former software architect and technical lead, he has shipped consumer-facing mobile products (ride-sharing, retail POS, cloud photo apps) and driven major refactors that improved testability, performance and build-time efficiency. Paul pairs product-minded UI design with low-level systems work—networking, cryptography and device integration—making him effective across the stack. Notably, he has led distributed teams globally and created SDKs used by customers to brand and extend core platforms.
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Paul Ossenbruggen - Senior Software Engineer at Walmart