IT Professional with extensive cross-platform skills and experience creating reliable, secure, scalable and cost-effective infrastructureSKILLS SUMMARYSystems management• Extensive experience with both physical and virtualized Linux environments• Establishing monitoring systems for both change management and security purposes with robust notification methods• Creating repeatable build processes to standardize and streamline recurring tasks• Expertise in security hardening, instrumenting and automating systems and network devicesCross-platform and Networking• Extensive TCP/IP networking experience in both IPv4 and IPv6, including SDN, routers, switches, VPN concentrators, load balancers and firewalls from multiple vendors• Extensive Linux, Windows experience and comfort with MacOS• Extensive knowledge of a wide range of hardware, including servers, storage and networking devices• Expertise in network and system security• Expertise with Co-lo and machine rooms, including remote management and monitoring.• Expertise in packet-level debugging using network capture, traffic playback and analysis tools.• Ability to walk into an unmanaged and undocumented environment, rapidly gain understanding, implement controls, discover and document current state, and upgrade or replace without breaking existing functionalityProgramming• Familiarity with Python programming, Shell scripts for Linux and Windows Administration and generic coding practices for automation, including configuration management of network devices via REST APIs. Business Skills• Ability to prioritize problems and projects to ensure alignment with business needs• Articulation of IT strategy, tactics and performance metrics to senior leadership and entire company• Extensive public speaking, technical presentations and training background• Professional writing, with multiple published technical books and magazine articles