Design next generation voice and video services to integrate with modern service applications and legacy voice/voice replacement services. Modern applications included phone & web apps, email, and SMS/MMS.Migrated services from legacy based systems in internal data centers/points of presence to cloud based providers, including CenturyLink Cloud and Amazon Web Services. Current implementation includes services that are completely cloud based, services that are completely legacy based, and services split between the two.Develop methodologies to migrate operations efforts from isolated development/test/production operations models to an agile devops structure.Lead network security scanning & hardening efforts to ensure compliance with industry best practices, adherence to corporate guidelines, and applicable industry regulations (HIPPA, PCI, etc).Integrate solutions from various third party software providers into custom designed, in-house applications.Lead migration efforts from a Solaris-only environment to a RHEL/CentOS/OracleLinux and Ubuntu envrionment.Act as a technical liaison between network/routing, firewall, development, and management teams.

Design next generation voice and voice replacement services to integrate with modern service applications as well as legacy services.Create automation and configuration management services for most aspects of system administration using cfengine as a base framework and custom shell scripts to perform ad-hoc and scheduled deployments, maintenance, and system updates.Design and prototype GlusterFS storage networks to provide storage back-ends for Linux kernal-based virtual machine clusters, and HA storage pools for end-user storage archives.Deployed and supported multiple virtual machine clusters intended for developer prototyping and day-to-day development. Both VMWare vSphere and Linux Kernel-based virtual machines were utilitzed. Train and act as escalation point for 24/7 OS & application production operations team. Applications were primarily custom, in-house developed tools based on WebLogic, Oracle Converged Communications Application Server, JBoss, and Tomcat. OSes included Oracle Solaris and OracleLinux.Manage software based load balancers for HTTP/HTTPS and SIP protocols. Apache, Nginx, NAT port forwarding, and Zeus/Riverbed/Brocade Traffic Managers were all used for different aspects of load balancing and/or proxying.Design and build network DMZs to provide end-user services and network access to corporate partners.Work with hardware/software vendors and VARs to define requirements for new hardware acquisitions for purchase by corporate buyers.

Oracle (Formerly Sun Microsystems) AccountOne of a team of senior technical team leads, supporting approximately 40 SAs world-wide.Train and mentor junior and mid-level system administrators.Engage with customer management and customer peers for enterprise design and operations.Architect & maintain global build (jumpstart) infrastructure for Solaris 2.5.1 - Solaris 10 systems.Design, script, and maintain processes to perform OS and patching upgrades using Live Upgrade.Set technical and operational standards for utilizing containers/zones (native and branded/etude) throughout Sun's datacenters.Architect, implement, and maintain high availability clusters based on Sun Cluster 3.x.Managed and performed multiple datacenter migrations and consolidations.Manage storage systems using Veritas Volume Manager, Solaris Volume Manager (Online Disk Suite/Solstice Disk Suite), QFS/SAMFS, and ZFS.Provide day to day UNIX administration support for approximately 2,500 servers to internal customers at a client site. Servers during this contract consisted of the full Sun server SPARC & x86 product lines from SunFire 25K systems to SPARCserver 1000 systems.Performed regular 24-hour on-call rotation.Consult on various interoperability issues between Solaris, Linux, and Windows based systems.

Maintained development and office network for mixed environment of MS Windows 9x/NT/2000, Linux, and Sun Solaris (7 & 8) for Internet software start-up.Provided security and network assessments and analysis to parent company, Webb Interactive.

Maintained production, development, and test computer equipment for Colorado engineering laboratories. Responsibilities included backup, DHCP, DNS, NFS, NIS, patch, system rebuild, SMB, and WINS systems management for Solaris (2.5.1, 2.6, 7, & 8), Windows NT/2000, HP-UX (10.20 & 11.0), and AIX (4.3x) systems.Managed networking equipment for Colorado engineering laboratories. Duties included firewall, router, PPTP, SSH, switch, and wiring initialization, installations, and maintenance.Maintained Lucent Definity phone switch and Audix voice mail system for Louisville engineering laboratory.Moved Boulder engineering laboratory to Louisville site. Responsible for all computer, network, and phone moves and upgrades during site move. Additional responsibilities included domain name and IP address changes, test laboratory reconfiguration, and corporate network changes.

Senior Systems Administrator, STARS (2/98-7/99)Provided system administration functions to enterprise level backup system for users world-wide in 24-hour operational environment. Backup services were provided through a series of SGI and Sun servers using an EMASS/ADIC tape library, Amass, Legato Networker, and Veritas NetBackup.Provided end-user technical support for system/data recovery of clients using various UNIX variants, Windows NT, Windows 95/98, and VMS.Developed upgrades and requirements for second generation systems based on the STARS system configuration.Maintained SSBI (Top Secret Clearance).Senior Systems Administrator, Spacecraft Analysis Group (9/96-2/99)Provided system administration functions to mixed network of Windows NT, Sun Solaris (2.5.1 & 2.6), Sun SunOS (4.3), and SGI IRIX (6.2, 6.3, 6.4, & 6.5) computers for approximately 100 users in 24-hour operational environment.Provided first level end-user support for both commercial off the shelf software packages and custom in-house applications.Maintained SSBI (Top Secret Clearance).Junior Systems Administrator, JAMIS (5/96-9/96)Provided system administration functions to small network of HP T520 servers, Sun Workstations, and Windows 95 workstations for users in accounting department.

Evaluated and implemented resources required for World Wide Web information network for Defense and Space Group Site Operations.Assisted networking requirements group with computing resource relocations and new installations.