Master full-stack troubleshooter, skilled in product integration and deployment. Conversant in all levels of data center operation, from virtualization to mainframe and operating systems to applications, with a strong dose of data networking for good measure. Particular skills in performance evaluation/tuning, network analysis and cloud/mobile deployments. In-demand educator and public speaker. From punched cards, assembler and paper tape to 802.11, Python and Linux - been there, done that.